From 0025ffcc7126f0dddaa93b593c3b7081d01408db Mon Sep 17 00:00:00 2001 From: Joshua MacDonald Date: Thu, 17 Oct 2019 14:21:50 -0700 Subject: [PATCH] Remove the experimental SDK (#221) * Remove the experimental SDK * Remove the experimental SDK from README.md * Remove the experimental SDK from Makefile --- Makefile | 3 +- README.md | 9 - experimental/streaming/example/basic/go.mod | 7 - experimental/streaming/example/basic/go.sum | 367 ------------------ experimental/streaming/example/basic/main.go | 99 ----- .../streaming/exporter/buffer/buffer.go | 74 ---- experimental/streaming/exporter/buffer/doc.go | 15 - .../streaming/exporter/eventtype_string.go | 32 -- experimental/streaming/exporter/exporter.go | 115 ------ experimental/streaming/exporter/reader/doc.go | 15 - .../exporter/reader/format/format.go | 165 -------- .../streaming/exporter/reader/reader.go | 303 --------------- .../streaming/exporter/spandata/doc.go | 15 - .../streaming/exporter/spandata/format/doc.go | 15 - .../exporter/spandata/format/format.go | 34 -- .../streaming/exporter/spandata/spandata.go | 78 ---- .../streaming/exporter/spanlog/doc.go | 15 - .../streaming/exporter/spanlog/spanlog.go | 37 -- .../streaming/exporter/stderr/stderr.go | 33 -- .../streaming/exporter/stdout/stdout.go | 33 -- .../streaming/sdk/internal/test_observer.go | 43 -- experimental/streaming/sdk/metric.go | 175 --------- experimental/streaming/sdk/package.go | 52 --- experimental/streaming/sdk/span.go | 141 ------- experimental/streaming/sdk/span_test.go | 174 --------- experimental/streaming/sdk/trace.go | 98 ----- 26 files changed, 1 insertion(+), 2146 deletions(-) delete mode 100644 experimental/streaming/example/basic/go.mod delete mode 100644 experimental/streaming/example/basic/go.sum delete mode 100644 experimental/streaming/example/basic/main.go delete mode 100644 experimental/streaming/exporter/buffer/buffer.go delete mode 100644 experimental/streaming/exporter/buffer/doc.go delete mode 100644 experimental/streaming/exporter/eventtype_string.go delete mode 100644 experimental/streaming/exporter/exporter.go delete mode 100644 experimental/streaming/exporter/reader/doc.go delete mode 100644 experimental/streaming/exporter/reader/format/format.go delete mode 100644 experimental/streaming/exporter/reader/reader.go delete mode 100644 experimental/streaming/exporter/spandata/doc.go delete mode 100644 experimental/streaming/exporter/spandata/format/doc.go delete mode 100644 experimental/streaming/exporter/spandata/format/format.go delete mode 100644 experimental/streaming/exporter/spandata/spandata.go delete mode 100644 experimental/streaming/exporter/spanlog/doc.go delete mode 100644 experimental/streaming/exporter/spanlog/spanlog.go delete mode 100644 experimental/streaming/exporter/stderr/stderr.go delete mode 100644 experimental/streaming/exporter/stdout/stdout.go delete mode 100644 experimental/streaming/sdk/internal/test_observer.go delete mode 100644 experimental/streaming/sdk/metric.go delete mode 100644 experimental/streaming/sdk/package.go delete mode 100644 experimental/streaming/sdk/span.go delete mode 100644 experimental/streaming/sdk/span_test.go delete mode 100644 experimental/streaming/sdk/trace.go diff --git a/Makefile b/Makefile index dfa359944..262193dfa 100644 --- a/Makefile +++ b/Makefile @@ -5,8 +5,7 @@ export GO111MODULE=on EXAMPLES := \ ./example/basic \ ./example/http/client \ - ./example/http/server \ - ./experimental/streaming/example/basic + ./example/http/server # All source code and documents. Used in spell check. ALL_DOCS := $(shell find . -name '*.md' -type f | sort) diff --git a/README.md b/README.md index f5bfa7519..81c586806 100644 --- a/README.md +++ b/README.md @@ -105,12 +105,3 @@ attempt to maintain backwards compatibility with the alpha release. | Trace Context Propagation | Alpha | Unknown | | OpenTracing Bridge | Alpha | October | | OpenCensus Bridge | Alpha | Unknown | - -## Experimental streaming SDK - -The `experimental/streaming` directory contains an experimental SDK -that supports a low-level exporter. - -``` -go run experimental/streaming/example/basic/main.go -``` diff --git a/experimental/streaming/example/basic/go.mod b/experimental/streaming/example/basic/go.mod deleted file mode 100644 index c2da639c3..000000000 --- a/experimental/streaming/example/basic/go.mod +++ /dev/null @@ -1,7 +0,0 @@ -module github.com/open-telemetry/opentelemetry-go/experimental/streaming/example/basic - -go 1.12 - -replace go.opentelemetry.io => ../../../.. - -require go.opentelemetry.io v0.0.0-00010101000000-000000000000 diff --git a/experimental/streaming/example/basic/go.sum b/experimental/streaming/example/basic/go.sum deleted file mode 100644 index 0f295fc0c..000000000 --- a/experimental/streaming/example/basic/go.sum +++ /dev/null @@ -1,367 +0,0 @@ -cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= -cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= -cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= -cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= -cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= -cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o= -cloud.google.com/go/datastore v1.0.0/go.mod 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h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= -gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= -gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= -gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo= -gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= -gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74= -gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg= -mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc= -mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4= -mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw= -mvdan.cc/unparam v0.0.0-20190917161559-b83a221c10a2/go.mod h1:rCqoQrfAmpTX/h2APczwM7UymU/uvaOluiVPIYCSY/k= -rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= -sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0= -sourcegraph.com/sqs/pbtypes v1.0.0/go.mod h1:3AciMUv4qUuRHRHhOG4TZOB+72GdPVz5k+c648qsFS4= diff --git a/experimental/streaming/example/basic/main.go b/experimental/streaming/example/basic/main.go deleted file mode 100644 index 1acfad63f..000000000 --- a/experimental/streaming/example/basic/main.go +++ /dev/null @@ -1,99 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package main - -import ( - "context" - - "go.opentelemetry.io/api/distributedcontext" - "go.opentelemetry.io/api/key" - "go.opentelemetry.io/api/metric" - "go.opentelemetry.io/api/trace" - - "go.opentelemetry.io/experimental/streaming/exporter/spanlog" - "go.opentelemetry.io/experimental/streaming/sdk" -) - -var ( - streaming = sdk.New(spanlog.New()) - tracer trace.Tracer = streaming - meter metric.Meter = streaming - - fooKey = key.New("ex.com/foo") - barKey = key.New("ex.com/bar") - lemonsKey = key.New("ex.com/lemons") - anotherKey = key.New("ex.com/another") - - oneMetric = metric.NewFloat64Gauge("ex.com/one", - metric.WithKeys(fooKey, barKey, lemonsKey), - metric.WithDescription("A gauge set to 1.0"), - ) - - measureTwo = metric.NewFloat64Measure("ex.com/two") -) - -func main() { - ctx := context.Background() - - ctx = distributedcontext.NewContext(ctx, - distributedcontext.Insert(fooKey.String("foo1")), - distributedcontext.Insert(barKey.String("bar1")), - ) - - commonLabels := meter.DefineLabels(ctx, lemonsKey.Int(10)) - - gauge := oneMetric.GetHandle(commonLabels) - - measure := measureTwo.GetHandle(commonLabels) - - err := tracer.WithSpan(ctx, "operation", func(ctx context.Context) error { - - trace.CurrentSpan(ctx).AddEvent(ctx, "Nice operation!", key.New("bogons").Int(100)) - - trace.CurrentSpan(ctx).SetAttributes(anotherKey.String("yes")) - - gauge.Set(ctx, 1) - - meter.RecordBatch( - // Note: call-site variables added as context entries: - distributedcontext.NewContext(ctx, - distributedcontext.Insert(anotherKey.String("xyz"))), - commonLabels, - - oneMetric.Measurement(1.0), - measureTwo.Measurement(2.0), - ) - - return tracer.WithSpan( - ctx, - "Sub operation...", - func(ctx context.Context) error { - trace.CurrentSpan(ctx).SetAttribute(lemonsKey.String("five")) - - trace.CurrentSpan(ctx).AddEvent(ctx, "Sub span event") - - measure.Record(ctx, 1.3) - - return nil - }, - ) - }) - if err != nil { - panic(err) - } - - // TODO: How to flush? - // loader.Flush() -} diff --git a/experimental/streaming/exporter/buffer/buffer.go b/experimental/streaming/exporter/buffer/buffer.go deleted file mode 100644 index 678685e59..000000000 --- a/experimental/streaming/exporter/buffer/buffer.go +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package buffer - -import ( - "sync" - "sync/atomic" - - "go.opentelemetry.io/experimental/streaming/exporter" -) - -type Buffer struct { - observers []exporter.Observer - events chan exporter.Event - dropped uint64 - wait sync.WaitGroup - close chan struct{} -} - -func NewBuffer(size int, observers ...exporter.Observer) *Buffer { - b := &Buffer{ - observers: observers, - events: make(chan exporter.Event, size), - close: make(chan struct{}), - } - b.wait.Add(1) - go b.run() - return b -} - -func (b *Buffer) Observe(data exporter.Event) { - select { - case b.events <- data: - default: - atomic.AddUint64(&b.dropped, 1) - } -} - -func (b *Buffer) Close() { - close(b.close) - b.wait.Wait() -} - -func (b *Buffer) run() { - defer func() { - _ = recover() - b.wait.Done() - }() - - for { - select { - case <-b.close: - return - case ev := <-b.events: - // TODO: This has to ensure ordered arrival, - // e.g., put into a heap and delay observations. - for _, obs := range b.observers { - obs.Observe(ev) - } - } - } -} diff --git a/experimental/streaming/exporter/buffer/doc.go b/experimental/streaming/exporter/buffer/doc.go deleted file mode 100644 index 163e34b08..000000000 --- a/experimental/streaming/exporter/buffer/doc.go +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package buffer // import "go.opentelemetry.io/experimental/streaming/exporter/buffer" diff --git a/experimental/streaming/exporter/eventtype_string.go b/experimental/streaming/exporter/eventtype_string.go deleted file mode 100644 index 55ebe17ad..000000000 --- a/experimental/streaming/exporter/eventtype_string.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by "stringer -type=EventType"; DO NOT EDIT. - -package exporter - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[INVALID-0] - _ = x[START_SPAN-1] - _ = x[END_SPAN-2] - _ = x[ADD_EVENT-3] - _ = x[NEW_SCOPE-4] - _ = x[MODIFY_ATTR-5] - _ = x[SET_STATUS-6] - _ = x[SET_NAME-7] - _ = x[SINGLE_METRIC-8] - _ = x[BATCH_METRIC-9] -} - -const _EventType_name = "INVALIDSTART_SPANEND_SPANADD_EVENTNEW_SCOPEMODIFY_ATTRSET_STATUSSET_NAMESINGLE_METRICBATCH_METRIC" - -var _EventType_index = [...]uint8{0, 7, 17, 25, 34, 43, 54, 64, 72, 85, 97} - -func (i EventType) String() string { - if i < 0 || i >= EventType(len(_EventType_index)-1) { - return "EventType(" + strconv.FormatInt(int64(i), 10) + ")" - } - return _EventType_name[_EventType_index[i]:_EventType_index[i+1]] -} diff --git a/experimental/streaming/exporter/exporter.go b/experimental/streaming/exporter/exporter.go deleted file mode 100644 index 1f3f70543..000000000 --- a/experimental/streaming/exporter/exporter.go +++ /dev/null @@ -1,115 +0,0 @@ -package exporter - -import ( - "context" - "sync/atomic" - "time" - - "google.golang.org/grpc/codes" - - "go.opentelemetry.io/api/core" - "go.opentelemetry.io/api/distributedcontext" - "go.opentelemetry.io/api/metric" -) - -type EventType int - -type EventID uint64 - -type ScopeID struct { - EventID - core.SpanContext -} - -type Event struct { - // Automatic fields - Sequence EventID // Auto-filled - Time time.Time // Auto-filled - - // Type, Scope, Context - Type EventType // All events - Scope ScopeID // All events - Context context.Context // core.FromContext() and scope.Active() - - // Arguments (type-specific) - Attribute core.KeyValue // SET_ATTRIBUTE - Attributes []core.KeyValue // SET_ATTRIBUTES - Mutator distributedcontext.Mutator // SET_ATTRIBUTE - Mutators []distributedcontext.Mutator // SET_ATTRIBUTES - Recovered interface{} // END_SPAN - Status codes.Code // SET_STATUS - - // Values - String string // START_SPAN, EVENT, SET_NAME, ... - Parent ScopeID // START_SPAN - Measurement metric.Measurement - Measurements []metric.Measurement -} - -type Observer interface { - Observe(data Event) -} - -//go:generate stringer -type=EventType -// nolint:golint -const ( - INVALID EventType = iota - START_SPAN - END_SPAN - ADD_EVENT - NEW_SCOPE - MODIFY_ATTR - SET_STATUS - SET_NAME - SINGLE_METRIC // A metric Set(), Add(), Record() - BATCH_METRIC // A RecordBatch() -) - -type Exporter struct { - sequence uint64 - observers []Observer -} - -func NewExporter(observers ...Observer) *Exporter { - return &Exporter{ - observers: observers, - } -} - -func (e *Exporter) NextEventID() EventID { - return EventID(atomic.AddUint64(&e.sequence, 1)) -} - -func (e *Exporter) Record(event Event) EventID { - if event.Sequence == 0 { - event.Sequence = e.NextEventID() - } - if event.Time.IsZero() { - event.Time = time.Now() - } - for _, observer := range e.observers { - observer.Observe(event) - } - return event.Sequence -} - -func (e *Exporter) Foreach(f func(Observer)) { - for _, observer := range e.observers { - f(observer) - } -} - -func (e *Exporter) NewScope(parent ScopeID, attributes ...core.KeyValue) ScopeID { - if len(attributes) == 0 { - return parent - } - eventID := e.Record(Event{ - Type: NEW_SCOPE, - Scope: parent, - Attributes: attributes, - }) - return ScopeID{ - EventID: eventID, - SpanContext: parent.SpanContext, - } -} diff --git a/experimental/streaming/exporter/reader/doc.go b/experimental/streaming/exporter/reader/doc.go deleted file mode 100644 index a112b2ec6..000000000 --- a/experimental/streaming/exporter/reader/doc.go +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package reader // import "go.opentelemetry.io/experimental/streaming/exporter/reader" diff --git a/experimental/streaming/exporter/reader/format/format.go b/experimental/streaming/exporter/reader/format/format.go deleted file mode 100644 index 1b344f0a5..000000000 --- a/experimental/streaming/exporter/reader/format/format.go +++ /dev/null @@ -1,165 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package format - -import ( - "fmt" - "strings" - - "go.opentelemetry.io/api/core" - "go.opentelemetry.io/api/distributedcontext" - "go.opentelemetry.io/api/key" - "go.opentelemetry.io/api/metric" - "go.opentelemetry.io/experimental/streaming/exporter" - "go.opentelemetry.io/experimental/streaming/exporter/reader" - - // TODO this should not be an SDK dependency; move conventional tags into the API. - "go.opentelemetry.io/experimental/streaming/sdk" -) - -var ( - parentSpanIDKey = key.New("parent_span_id") -) - -func AppendEvent(buf *strings.Builder, data reader.Event) { - - f := func(skipIf bool) func(kv core.KeyValue) bool { - return func(kv core.KeyValue) bool { - if skipIf && data.Attributes.HasValue(kv.Key) { - return true - } - buf.WriteString(" ") - buf.WriteString(string(kv.Key)) - buf.WriteString("=") - buf.WriteString(kv.Value.Emit()) - return true - } - } - - buf.WriteString(data.Time.Format("2006/01/02 15-04-05.000000")) - buf.WriteString(" ") - - switch data.Type { - case exporter.START_SPAN: - buf.WriteString("start ") - buf.WriteString(data.Name) - - if !data.Parent.HasSpanID() { - buf.WriteString(", a root span") - } else { - buf.WriteString(" <") - f(false)(parentSpanIDKey.String(data.Parent.SpanIDString())) - if data.ParentAttributes.Len() > 0 { - data.ParentAttributes.Foreach(f(false)) - } - buf.WriteString(" >") - } - - case exporter.END_SPAN: - buf.WriteString("end ") - buf.WriteString(data.Name) - - buf.WriteString(" (") - buf.WriteString(data.Duration.String()) - buf.WriteString(")") - - case exporter.ADD_EVENT: - buf.WriteString("event: ") - buf.WriteString(data.Message) - buf.WriteString(" (") - data.Attributes.Foreach(func(kv core.KeyValue) bool { - buf.WriteString(" ") - buf.WriteString(string(kv.Key)) - buf.WriteString("=") - buf.WriteString(kv.Value.Emit()) - return true - }) - buf.WriteString(")") - - case exporter.MODIFY_ATTR: - buf.WriteString("modify attr ") - buf.WriteString(data.Type.String()) - - case exporter.SINGLE_METRIC: - formatMetricUpdate(buf, data.Measurement) - formatMetricLabels(buf, data.Attributes) - - case exporter.BATCH_METRIC: - buf.WriteString("BATCH") - formatMetricLabels(buf, data.Attributes) - for _, m := range data.Measurements { - formatMetricUpdate(buf, m) - buf.WriteString(" ") - } - - case exporter.SET_STATUS: - buf.WriteString("set status ") - buf.WriteString(data.Status.String()) - - case exporter.SET_NAME: - buf.WriteString("set name ") - buf.WriteString(data.Name) - - default: - buf.WriteString(fmt.Sprintf("WAT? %d", data.Type)) - } - - // Attach the scope (span) attributes and context entries. - buf.WriteString(" [") - if data.Attributes.Len() > 0 { - data.Attributes.Foreach(f(false)) - } - if data.Entries.Len() > 0 { - data.Entries.Foreach(f(true)) - } - if data.SpanContext.HasSpanID() { - f(false)(sdk.SpanIDKey.String(data.SpanContext.SpanIDString())) - } - if data.SpanContext.HasTraceID() { - f(false)(sdk.TraceIDKey.String(data.SpanContext.TraceIDString())) - } - - buf.WriteString(" ]\n") -} - -func formatMetricUpdate(buf *strings.Builder, m metric.Measurement) { - buf.WriteString(m.Descriptor.Kind().String()) - buf.WriteString(" ") - buf.WriteString(m.Descriptor.Name()) - buf.WriteString("=") - buf.WriteString(m.Value.Emit(m.Descriptor.ValueKind())) -} - -func formatMetricLabels(buf *strings.Builder, l distributedcontext.Map) { - buf.WriteString(" {") - i := 0 - l.Foreach(func(kv core.KeyValue) bool { - if i != 0 { - buf.WriteString(",") - } - i++ - buf.WriteString(string(kv.Key)) - buf.WriteString("=") - buf.WriteString(kv.Value.Emit()) - return true - }) - buf.WriteString("}") -} - -func EventToString(data reader.Event) string { - var buf strings.Builder - AppendEvent(&buf, data) - return buf.String() -} diff --git a/experimental/streaming/exporter/reader/reader.go b/experimental/streaming/exporter/reader/reader.go deleted file mode 100644 index 7972cad59..000000000 --- a/experimental/streaming/exporter/reader/reader.go +++ /dev/null @@ -1,303 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package reader - -import ( - "fmt" - "sync" - "time" - - "google.golang.org/grpc/codes" - - "go.opentelemetry.io/api/core" - "go.opentelemetry.io/api/distributedcontext" - "go.opentelemetry.io/api/metric" - "go.opentelemetry.io/api/trace" - "go.opentelemetry.io/experimental/streaming/exporter" -) - -type Reader interface { - Read(Event) -} - -type Event struct { - Type exporter.EventType - Time time.Time - Sequence exporter.EventID - SpanContext core.SpanContext - Entries distributedcontext.Map // context entries - Attributes distributedcontext.Map // span attributes, metric labels - Measurement metric.Measurement - Measurements []metric.Measurement - - Parent core.SpanContext - ParentAttributes distributedcontext.Map - - Duration time.Duration - Name string - Message string - Status codes.Code -} - -type readerObserver struct { - readers []Reader - - // core.EventID -> *readerSpan or *readerScope - scopes sync.Map -} - -type readerSpan struct { - name string - start time.Time - startEntries distributedcontext.Map - spanContext core.SpanContext - status codes.Code - - *readerScope -} - -type readerScope struct { - span *readerSpan - parent exporter.EventID - attributes distributedcontext.Map -} - -// NewReaderObserver returns an implementation that computes the -// necessary state needed by a reader to process events in memory. -// Practically, this means tracking live metric handles and scope -// attribute sets. -func NewReaderObserver(readers ...Reader) exporter.Observer { - return &readerObserver{ - readers: readers, - } -} - -func (ro *readerObserver) Observe(event exporter.Event) { - // TODO this should check for out-of-order events and buffer. - ro.orderedObserve(event) -} - -func (ro *readerObserver) orderedObserve(event exporter.Event) { - read := Event{ - Time: event.Time, - Sequence: event.Sequence, - Attributes: distributedcontext.NewEmptyMap(), - Entries: distributedcontext.NewEmptyMap(), - } - - if event.Context != nil { - read.Entries = distributedcontext.FromContext(event.Context) - } - - switch event.Type { - case exporter.START_SPAN: - // Save the span context entries, initial attributes, start time, and name. - span := &readerSpan{ - name: event.String, - start: event.Time, - startEntries: distributedcontext.FromContext(event.Context), - spanContext: event.Scope.SpanContext, - readerScope: &readerScope{}, - } - - rattrs, _ := ro.readScope(event.Scope) - - span.readerScope.span = span - span.readerScope.attributes = rattrs - - read.Name = span.name - read.Type = exporter.START_SPAN - read.SpanContext = span.spanContext - read.Attributes = rattrs - - if event.Parent.EventID == 0 && event.Parent.HasTraceID() { - // Remote parent - read.Parent = event.Parent.SpanContext - - // Note: No parent attributes in the event for remote parents. - } else { - pattrs, pspan := ro.readScope(event.Parent) - - if pspan != nil { - // Local parent - read.Parent = pspan.spanContext - read.ParentAttributes = pattrs - } - } - - ro.scopes.Store(event.Sequence, span) - - case exporter.END_SPAN: - attrs, span := ro.readScope(event.Scope) - if span == nil { - panic(fmt.Sprint("span not found", event.Scope)) - } - - read.Name = span.name - read.Type = exporter.END_SPAN - - read.Attributes = attrs - read.Duration = event.Time.Sub(span.start) - read.Entries = span.startEntries - read.SpanContext = span.spanContext - - // TODO: recovered - - case exporter.NEW_SCOPE, exporter.MODIFY_ATTR: - var span *readerSpan - var m distributedcontext.Map - - sid := event.Scope - - if sid.EventID == 0 { - m = distributedcontext.NewEmptyMap() - } else { - parentI, has := ro.scopes.Load(sid.EventID) - if !has { - panic("parent scope not found") - } - if parent, ok := parentI.(*readerScope); ok { - m = parent.attributes - span = parent.span - } else if parent, ok := parentI.(*readerSpan); ok { - m = parent.attributes - span = parent - } - } - - sc := &readerScope{ - span: span, - parent: sid.EventID, - attributes: m.Apply( - distributedcontext.MapUpdate{ - SingleKV: event.Attribute, - MultiKV: event.Attributes, - SingleMutator: event.Mutator, - MultiMutator: event.Mutators, - }, - ), - } - - ro.scopes.Store(event.Sequence, sc) - - if event.Type == exporter.NEW_SCOPE { - return - } - - read.Type = exporter.MODIFY_ATTR - read.Attributes = sc.attributes - - if span != nil { - read.SpanContext = span.spanContext - read.Entries = span.startEntries - } - - case exporter.ADD_EVENT: - read.Type = exporter.ADD_EVENT - read.Message = event.String - - attrs, span := ro.readScope(event.Scope) - read.Attributes = attrs.Apply(distributedcontext.MapUpdate{ - MultiKV: event.Attributes, - }) - if span != nil { - read.SpanContext = span.spanContext - } - - case exporter.SINGLE_METRIC: - read.Type = exporter.SINGLE_METRIC - - if event.Context != nil { - span := trace.CurrentSpan(event.Context) - if span != nil { - read.SpanContext = span.SpanContext() - } - } - attrs, _ := ro.readScope(event.Scope) - read.Attributes = attrs - read.Measurement = event.Measurement - - case exporter.BATCH_METRIC: - read.Type = event.Type - - if event.Context != nil { - span := trace.CurrentSpan(event.Context) - if span != nil { - read.SpanContext = span.SpanContext() - } - } - - attrs, _ := ro.readScope(event.Scope) - read.Attributes = attrs - read.Measurements = make([]metric.Measurement, len(event.Measurements)) - copy(read.Measurements, event.Measurements) - - case exporter.SET_STATUS: - read.Type = exporter.SET_STATUS - read.Status = event.Status - _, span := ro.readScope(event.Scope) - if span != nil { - span.status = event.Status - read.SpanContext = span.spanContext - } - - case exporter.SET_NAME: - read.Type = exporter.SET_NAME - read.Name = event.String - - default: - panic(fmt.Sprint("Unhandled case: ", event.Type)) - } - - for _, reader := range ro.readers { - reader.Read(read) - } - - if event.Type == exporter.END_SPAN { - ro.cleanupSpan(event.Scope.EventID) - } -} - -func (ro *readerObserver) readScope(id exporter.ScopeID) (distributedcontext.Map, *readerSpan) { - if id.EventID == 0 { - return distributedcontext.NewEmptyMap(), nil - } - ev, has := ro.scopes.Load(id.EventID) - if !has { - panic(fmt.Sprintln("scope not found", id.EventID)) - } - if sp, ok := ev.(*readerScope); ok { - return sp.attributes, sp.span - } else if sp, ok := ev.(*readerSpan); ok { - return sp.attributes, sp - } - return distributedcontext.NewEmptyMap(), nil -} - -func (ro *readerObserver) cleanupSpan(id exporter.EventID) { - for id != 0 { - ev, has := ro.scopes.Load(id) - if !has { - panic(fmt.Sprintln("scope not found", id)) - } - ro.scopes.Delete(id) - - if sp, ok := ev.(*readerScope); ok { - id = sp.parent - } else if sp, ok := ev.(*readerSpan); ok { - id = sp.parent - } - } -} diff --git a/experimental/streaming/exporter/spandata/doc.go b/experimental/streaming/exporter/spandata/doc.go deleted file mode 100644 index 4238a8924..000000000 --- a/experimental/streaming/exporter/spandata/doc.go +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package spandata // import "go.opentelemetry.io/experimental/streaming/exporter/spandata" diff --git a/experimental/streaming/exporter/spandata/format/doc.go b/experimental/streaming/exporter/spandata/format/doc.go deleted file mode 100644 index acf11aea0..000000000 --- a/experimental/streaming/exporter/spandata/format/doc.go +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package format // import "go.opentelemetry.io/experimental/streaming/exporter/spandata/format" diff --git a/experimental/streaming/exporter/spandata/format/format.go b/experimental/streaming/exporter/spandata/format/format.go deleted file mode 100644 index 7a19b2a43..000000000 --- a/experimental/streaming/exporter/spandata/format/format.go +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package format - -import ( - "strings" - - "go.opentelemetry.io/experimental/streaming/exporter/reader/format" - "go.opentelemetry.io/experimental/streaming/exporter/spandata" -) - -func AppendSpan(buf *strings.Builder, data *spandata.Span) { - for _, event := range data.Events { - format.AppendEvent(buf, event) - } -} - -func SpanToString(data *spandata.Span) string { - var buf strings.Builder - AppendSpan(&buf, data) - return buf.String() -} diff --git a/experimental/streaming/exporter/spandata/spandata.go b/experimental/streaming/exporter/spandata/spandata.go deleted file mode 100644 index fda54b2f2..000000000 --- a/experimental/streaming/exporter/spandata/spandata.go +++ /dev/null @@ -1,78 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package spandata - -import ( - "go.opentelemetry.io/api/core" - "go.opentelemetry.io/experimental/streaming/exporter" - "go.opentelemetry.io/experimental/streaming/exporter/reader" -) - -type Reader interface { - Read(*Span) -} - -type Span struct { - Events []reader.Event - Aggregates map[string]float64 -} - -type spanReader struct { - spans map[core.SpanContext]*Span - readers []Reader -} - -func NewReaderObserver(readers ...Reader) exporter.Observer { - return reader.NewReaderObserver(&spanReader{ - spans: map[core.SpanContext]*Span{}, - readers: readers, - }) -} - -func (s *spanReader) Read(data reader.Event) { - var span *Span - if data.SpanContext.HasSpanID() { - if data.Type == exporter.START_SPAN { - span = &Span{Events: make([]reader.Event, 0, 4)} - s.spans[data.SpanContext] = span - } else { - span = s.spans[data.SpanContext] - if span == nil { - // TODO count and report this. - return - } - } - } - - switch data.Type { - case exporter.SINGLE_METRIC: - s.updateMetric(data) - return - } - - if span != nil { - span.Events = append(span.Events, data) - if data.Type == exporter.END_SPAN { - for _, r := range s.readers { - r.Read(span) - } - delete(s.spans, data.SpanContext) - } - } -} - -func (s *spanReader) updateMetric(data reader.Event) { - // TODO aggregate -} diff --git a/experimental/streaming/exporter/spanlog/doc.go b/experimental/streaming/exporter/spanlog/doc.go deleted file mode 100644 index 96e6e7735..000000000 --- a/experimental/streaming/exporter/spanlog/doc.go +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package spanlog // import "go.opentelemetry.io/experimental/streaming/exporter/spanlog" diff --git a/experimental/streaming/exporter/spanlog/spanlog.go b/experimental/streaming/exporter/spanlog/spanlog.go deleted file mode 100644 index 5bbd6d8c5..000000000 --- a/experimental/streaming/exporter/spanlog/spanlog.go +++ /dev/null @@ -1,37 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package spanlog - -import ( - "os" - "strings" - - "go.opentelemetry.io/experimental/streaming/exporter" - "go.opentelemetry.io/experimental/streaming/exporter/spandata" - "go.opentelemetry.io/experimental/streaming/exporter/spandata/format" -) - -type spanLog struct{} - -func New() exporter.Observer { - return spandata.NewReaderObserver(&spanLog{}) -} - -func (s *spanLog) Read(data *spandata.Span) { - var buf strings.Builder - buf.WriteString("----------------------------------------------------------------------\n") - format.AppendSpan(&buf, data) - os.Stdout.WriteString(buf.String()) -} diff --git a/experimental/streaming/exporter/stderr/stderr.go b/experimental/streaming/exporter/stderr/stderr.go deleted file mode 100644 index b4fc812fd..000000000 --- a/experimental/streaming/exporter/stderr/stderr.go +++ /dev/null @@ -1,33 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stderr // import "go.opentelemetry.io/experimental/streaming/exporter/stderr" - -import ( - "os" - - "go.opentelemetry.io/experimental/streaming/exporter" - "go.opentelemetry.io/experimental/streaming/exporter/reader" - "go.opentelemetry.io/experimental/streaming/exporter/reader/format" -) - -type stderrLog struct{} - -func New() exporter.Observer { - return reader.NewReaderObserver(&stderrLog{}) -} - -func (s *stderrLog) Read(data reader.Event) { - os.Stderr.WriteString(format.EventToString(data)) -} diff --git a/experimental/streaming/exporter/stdout/stdout.go b/experimental/streaming/exporter/stdout/stdout.go deleted file mode 100644 index 183943006..000000000 --- a/experimental/streaming/exporter/stdout/stdout.go +++ /dev/null @@ -1,33 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stdout // import "go.opentelemetry.io/experimental/streaming/exporter/stdout" - -import ( - "os" - - "go.opentelemetry.io/experimental/streaming/exporter" - "go.opentelemetry.io/experimental/streaming/exporter/reader" - "go.opentelemetry.io/experimental/streaming/exporter/reader/format" -) - -type stdoutLog struct{} - -func New() exporter.Observer { - return reader.NewReaderObserver(&stdoutLog{}) -} - -func (s *stdoutLog) Read(data reader.Event) { - os.Stdout.WriteString(format.EventToString(data)) -} diff --git a/experimental/streaming/sdk/internal/test_observer.go b/experimental/streaming/sdk/internal/test_observer.go deleted file mode 100644 index d0b35e7e5..000000000 --- a/experimental/streaming/sdk/internal/test_observer.go +++ /dev/null @@ -1,43 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package internal // import "go.opentelemetry.io/experimental/streaming/sdk/internal" - -import "go.opentelemetry.io/experimental/streaming/exporter" - -type eventsMap map[exporter.EventType][]exporter.Event - -type TestObserver struct { - events eventsMap -} - -var _ exporter.Observer = &TestObserver{} - -func NewTestObserver() *TestObserver { - return &TestObserver{} -} - -func (o *TestObserver) Observe(e exporter.Event) { - if o.events == nil { - o.events = make(eventsMap) - } - o.events[e.Type] = append(o.events[e.Type], e) -} - -func (o *TestObserver) Events(eType exporter.EventType) []exporter.Event { - if o.events == nil { - return nil - } - return o.events[eType] -} diff --git a/experimental/streaming/sdk/metric.go b/experimental/streaming/sdk/metric.go deleted file mode 100644 index 46483c0ad..000000000 --- a/experimental/streaming/sdk/metric.go +++ /dev/null @@ -1,175 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sdk - -import ( - "context" - "time" - - "go.opentelemetry.io/api/core" - "go.opentelemetry.io/api/metric" - "go.opentelemetry.io/experimental/streaming/exporter" -) - -type metricHandle struct { - descriptor *metric.Descriptor - labels metricLabels -} - -var _ metric.Handle = &metricHandle{} - -type metricLabels struct { - sdk *sdk - scope exporter.ScopeID -} - -var _ metric.LabelSet = &metricLabels{} - -func (h *metricHandle) RecordOne(ctx context.Context, value metric.MeasurementValue) { - h.labels.sdk.exporter.Record(exporter.Event{ - Type: exporter.SINGLE_METRIC, - Context: ctx, - Scope: h.labels.scope, - Measurement: metric.Measurement{ - Descriptor: h.descriptor, - Value: value, - }, - }) -} - -func (m metricLabels) Meter() metric.Meter { - return m.sdk -} - -func (s *sdk) DefineLabels(ctx context.Context, labels ...core.KeyValue) metric.LabelSet { - return metricLabels{ - sdk: s, - scope: s.exporter.NewScope(exporter.ScopeID{}, labels...), - } -} - -func (s *sdk) NewHandle(erm metric.ExplicitReportingMetric, labels metric.LabelSet) metric.Handle { - mlabels, _ := labels.(metricLabels) - - return &metricHandle{ - descriptor: erm.Descriptor(), - labels: mlabels, - } -} - -func (s *sdk) DeleteHandle(handle metric.Handle) { -} - -func (s *sdk) RecordBatch(ctx context.Context, labels metric.LabelSet, ms ...metric.Measurement) { - eventType := exporter.BATCH_METRIC - if len(ms) == 1 { - eventType = exporter.SINGLE_METRIC - } - oms := make([]metric.Measurement, len(ms)) - mlabels, _ := labels.(metricLabels) - - copy(oms, ms) - - s.exporter.Record(exporter.Event{ - Type: eventType, - Context: ctx, - Scope: mlabels.scope, - Measurements: oms, - }) -} - -func (s *sdk) RegisterObserver(observer metric.Observer, callback metric.ObserverCallback) { - if s.insertNewObserver(observer, callback) { - go s.observersRoutine() - } -} - -func (s *sdk) insertNewObserver(observer metric.Observer, callback metric.ObserverCallback) bool { - s.observersLock.Lock() - defer s.observersLock.Unlock() - old := s.loadObserversMap() - id := observer.Descriptor().ID() - if _, ok := old[id]; ok { - return false - } - observers := make(observersMap) - for oid, data := range old { - observers[oid] = data - } - observers[id] = observerData{ - observer: observer, - callback: callback, - } - s.storeObserversMap(observers) - return old == nil -} - -func (s *sdk) UnregisterObserver(observer metric.Observer) { - s.observersLock.Lock() - defer s.observersLock.Unlock() - old := s.loadObserversMap() - id := observer.Descriptor().ID() - if _, ok := old[id]; !ok { - return - } - if len(old) == 1 { - s.storeObserversMap(nil) - return - } - observers := make(observersMap) - for oid, data := range old { - if oid != id { - observers[oid] = data - } - } - s.storeObserversMap(observers) -} - -func (s *sdk) observersRoutine() { - ticker := time.NewTicker(time.Second) - defer ticker.Stop() - for range ticker.C { - m := s.loadObserversMap() - if m == nil { - return - } - for _, data := range m { - ocb := s.getObservationCallback(data.observer.Descriptor()) - data.callback(s, data.observer, ocb) - } - } -} - -func (s *sdk) getObservationCallback(descriptor *metric.Descriptor) metric.ObservationCallback { - return func(l metric.LabelSet, v metric.MeasurementValue) { - s.RecordBatch(context.Background(), l, metric.Measurement{ - Descriptor: descriptor, - Value: v, - }) - } -} - -func (s *sdk) loadObserversMap() observersMap { - i := s.observers.Load() - if i == nil { - return nil - } - m := i.(observersMap) - return m -} - -func (s *sdk) storeObserversMap(m observersMap) { - s.observers.Store(m) -} diff --git a/experimental/streaming/sdk/package.go b/experimental/streaming/sdk/package.go deleted file mode 100644 index c2606410a..000000000 --- a/experimental/streaming/sdk/package.go +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sdk - -import ( - "sync" - "sync/atomic" - - "go.opentelemetry.io/api/metric" - "go.opentelemetry.io/api/trace" - "go.opentelemetry.io/experimental/streaming/exporter" -) - -type observerData struct { - observer metric.Observer - callback metric.ObserverCallback -} - -type observersMap map[metric.DescriptorID]observerData - -type sdk struct { - exporter *exporter.Exporter - resources exporter.EventID - - observersLock sync.Mutex - observers atomic.Value // observersMap -} - -type SDK interface { - trace.Tracer - metric.Meter -} - -var _ SDK = &sdk{} - -func New(observers ...exporter.Observer) SDK { - return &sdk{ - exporter: exporter.NewExporter(observers...), - } -} diff --git a/experimental/streaming/sdk/span.go b/experimental/streaming/sdk/span.go deleted file mode 100644 index 666f7dcfc..000000000 --- a/experimental/streaming/sdk/span.go +++ /dev/null @@ -1,141 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sdk - -import ( - "context" - "time" - - "google.golang.org/grpc/codes" - - "go.opentelemetry.io/api/core" - "go.opentelemetry.io/api/distributedcontext" - "go.opentelemetry.io/api/trace" - "go.opentelemetry.io/experimental/streaming/exporter" -) - -type span struct { - sdk *sdk - initial exporter.ScopeID -} - -// SpanContext returns span context of the span. Returned SpanContext is usable -// even after the span is finished. -func (sp *span) SpanContext() core.SpanContext { - return sp.initial.SpanContext -} - -// IsRecording returns true is the span is active and recording events is enabled. -func (sp *span) IsRecording() bool { - return false -} - -// SetStatus sets the status of the span. -func (sp *span) SetStatus(status codes.Code) { - sp.sdk.exporter.Record(exporter.Event{ - Type: exporter.SET_STATUS, - Scope: sp.ScopeID(), - Status: status, - }) -} - -func (sp *span) ScopeID() exporter.ScopeID { - return sp.initial -} - -func (sp *span) SetAttribute(attribute core.KeyValue) { - sp.sdk.exporter.Record(exporter.Event{ - Type: exporter.MODIFY_ATTR, - Scope: sp.ScopeID(), - Attribute: attribute, - }) -} - -func (sp *span) SetAttributes(attributes ...core.KeyValue) { - sp.sdk.exporter.Record(exporter.Event{ - Type: exporter.MODIFY_ATTR, - Scope: sp.ScopeID(), - Attributes: attributes, - }) -} - -func (sp *span) ModifyAttribute(mutator distributedcontext.Mutator) { - sp.sdk.exporter.Record(exporter.Event{ - Type: exporter.MODIFY_ATTR, - Scope: sp.ScopeID(), - Mutator: mutator, - }) -} - -func (sp *span) ModifyAttributes(mutators ...distributedcontext.Mutator) { - sp.sdk.exporter.Record(exporter.Event{ - Type: exporter.MODIFY_ATTR, - Scope: sp.ScopeID(), - Mutators: mutators, - }) -} - -func (sp *span) End(options ...trace.EndOption) { - recovered := recover() - opts := trace.EndOptions{} - for _, opt := range options { - opt(&opts) - } - sp.sdk.exporter.Record(exporter.Event{ - Time: opts.EndTime, - Type: exporter.END_SPAN, - Scope: sp.ScopeID(), - Recovered: recovered, - }) - if recovered != nil { - panic(recovered) - } -} - -func (sp *span) Tracer() trace.Tracer { - return sp.sdk -} - -func (sp *span) AddEvent(ctx context.Context, msg string, attrs ...core.KeyValue) { - sp.addEventWithTime(ctx, time.Time{}, msg, attrs...) -} - -func (sp *span) AddEventWithTimestamp(ctx context.Context, timestamp time.Time, msg string, attrs ...core.KeyValue) { - sp.addEventWithTime(ctx, timestamp, msg, attrs...) -} - -func (sp *span) addEventWithTime(ctx context.Context, timestamp time.Time, msg string, attrs ...core.KeyValue) { - sp.sdk.exporter.Record(exporter.Event{ - Time: timestamp, - Type: exporter.ADD_EVENT, - Scope: sp.ScopeID(), - String: msg, - Attributes: attrs, - Context: ctx, - }) -} - -func (sp *span) SetName(name string) { - sp.sdk.exporter.Record(exporter.Event{ - Type: exporter.SET_NAME, - String: name, - }) -} - -func (sp *span) AddLink(link trace.Link) { -} - -func (sp *span) Link(sc core.SpanContext, attrs ...core.KeyValue) { -} diff --git a/experimental/streaming/sdk/span_test.go b/experimental/streaming/sdk/span_test.go deleted file mode 100644 index aa3fdcb2e..000000000 --- a/experimental/streaming/sdk/span_test.go +++ /dev/null @@ -1,174 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sdk - -import ( - "context" - "reflect" - "testing" - "time" - - "github.com/google/go-cmp/cmp" - - "go.opentelemetry.io/api/core" - "go.opentelemetry.io/api/key" - "go.opentelemetry.io/api/metric" - "go.opentelemetry.io/api/trace" - - "go.opentelemetry.io/experimental/streaming/exporter" - "go.opentelemetry.io/experimental/streaming/sdk/internal" -) - -func TestEvents(t *testing.T) { - obs := internal.NewTestObserver() - _ = New(obs).WithSpan(context.Background(), "test", func(ctx context.Context) error { - type test1Type struct{} - type test2Type struct{} - sp := trace.CurrentSpan(ctx) - k1v1 := key.New("k1").String("v1") - k2v2 := key.New("k2").String("v2") - k3v3 := key.New("k3").String("v3") - ctx1 := context.WithValue(ctx, test1Type{}, 42) - sp.AddEvent(ctx1, "one two three", k1v1) - ctx2 := context.WithValue(ctx1, test2Type{}, "foo") - sp.AddEvent(ctx2, "testing", k2v2, k3v3) - - got := obs.Events(exporter.ADD_EVENT) - for idx := range got { - if got[idx].Time.IsZero() { - t.Errorf("Event %d has zero timestamp", idx) - } - got[idx].Time = time.Time{} - } - if len(got) != 2 { - t.Errorf("Expected two events, got %d", len(got)) - } - sdkSpan := sp.(*span) - want := []exporter.Event{ - { - Type: exporter.ADD_EVENT, - String: "one two three", - Attributes: []core.KeyValue{k1v1}, - Scope: sdkSpan.ScopeID(), - }, - { - Type: exporter.ADD_EVENT, - String: "testing", - Attributes: []core.KeyValue{k2v2, k3v3}, - Scope: sdkSpan.ScopeID(), - }, - } - if diffEvents(t, got, want) { - checkContext(t, got[0].Context, test1Type{}, 42) - checkContextMissing(t, got[0].Context, test2Type{}) - checkContext(t, got[1].Context, test1Type{}, 42) - checkContext(t, got[1].Context, test2Type{}, "foo") - } - return nil - }) -} - -func TestCustomStartEndTime(t *testing.T) { - startTime := time.Date(2019, time.August, 27, 14, 42, 0, 0, time.UTC) - endTime := startTime.Add(time.Second * 20) - obs := internal.NewTestObserver() - tracer := New(obs) - _, span := tracer.Start( - context.Background(), - "testspan", - trace.WithStartTime(startTime), - ) - span.End(trace.WithEndTime(endTime)) - want := []exporter.Event{ - { - Type: exporter.START_SPAN, - Time: startTime, - String: "testspan", - }, - { - Type: exporter.END_SPAN, - Time: endTime, - }, - } - got := append(obs.Events(exporter.START_SPAN), obs.Events(exporter.END_SPAN)...) - diffEvents(t, got, want, "Scope") -} - -func checkContextMissing(t *testing.T, ctx context.Context, key interface{}) bool { - gotValue := ctx.Value(key) - if gotValue != nil { - keyType := reflect.TypeOf(key) - t.Errorf("Expected %s to be missing in context", keyType) - return false - } - return true -} - -func checkContext(t *testing.T, ctx context.Context, key, wantValue interface{}) bool { - gotValue := ctx.Value(key) - if gotValue == nil { - keyType := reflect.TypeOf(key) - t.Errorf("Expected %s to exist in context", keyType) - return false - } - if diff := cmp.Diff(gotValue, wantValue); diff != "" { - keyType := reflect.TypeOf(key) - t.Errorf("Context value for key %s: -got +want %s", keyType, diff) - return false - } - return true -} - -func measurementCompare(m1, m2 metric.Measurement) bool { - // Nil descriptor normally shouldn't happen, unless there is - // some struct with the Measurement field that didn't get - // initialized. - m1Nil := m1.Descriptor == nil - m2Nil := m2.Descriptor == nil - if m1Nil != m2Nil { - return false - } - if m1Nil { - return m1.Value.AsRaw() == m2.Value.AsRaw() - } - if m1.Descriptor.ID() != m2.Descriptor.ID() { - return false - } - m2Raw := m2.Value.AsRaw() - kind := m1.Descriptor.ValueKind() - return m1.Value.RawCompare(m2Raw, kind) == 0 -} - -func diffEvents(t *testing.T, got, want []exporter.Event, extraIgnoredFields ...string) bool { - ignoredPaths := map[string]struct{}{ - "Sequence": {}, - "Context": {}, - } - for _, field := range extraIgnoredFields { - ignoredPaths[field] = struct{}{} - } - opts := []cmp.Option{ - cmp.FilterPath(func(path cmp.Path) bool { - _, found := ignoredPaths[path.String()] - return found - }, cmp.Ignore()), - cmp.Comparer(measurementCompare), - } - if diff := cmp.Diff(got, want, opts...); diff != "" { - t.Errorf("Events: -got +want %s", diff) - return false - } - return true -} diff --git a/experimental/streaming/sdk/trace.go b/experimental/streaming/sdk/trace.go deleted file mode 100644 index 42c1247ec..000000000 --- a/experimental/streaming/sdk/trace.go +++ /dev/null @@ -1,98 +0,0 @@ -// Copyright 2019, OpenTelemetry Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sdk - -import ( - "context" - "math/rand" - - "go.opentelemetry.io/api/core" - "go.opentelemetry.io/api/key" - "go.opentelemetry.io/api/trace" - "go.opentelemetry.io/experimental/streaming/exporter" -) - -// TODO These should move somewhere in the api, right? -var ( - ErrorKey = key.New("error") - SpanIDKey = key.New("span_id") - TraceIDKey = key.New("trace_id") - MessageKey = key.New("message") -) - -func (s *sdk) WithSpan(ctx context.Context, name string, body func(context.Context) error) error { - // TODO: use runtime/trace.WithRegion for execution sdk support - // TODO: use runtime/pprof.Do for profile tags support - ctx, span := s.Start(ctx, name) - defer span.End() - - if err := body(ctx); err != nil { - span.SetAttribute(ErrorKey.Bool(true)) - span.AddEvent(ctx, "span error", MessageKey.String(err.Error())) - return err - } - return nil -} - -func (s *sdk) Start(ctx context.Context, name string, opts ...trace.SpanOption) (context.Context, trace.Span) { - var child core.SpanContext - - child.SpanID = rand.Uint64() - - o := &trace.SpanOptions{} - - for _, opt := range opts { - opt(o) - } - - var parentScope exporter.ScopeID - - if o.Reference.HasTraceID() { - parentScope.SpanContext = o.Reference.SpanContext - } else { - parentScope.SpanContext = trace.CurrentSpan(ctx).SpanContext() - } - - if parentScope.HasTraceID() { - parent := parentScope.SpanContext - child.TraceID.High = parent.TraceID.High - child.TraceID.Low = parent.TraceID.Low - } else { - child.TraceID.High = rand.Uint64() - child.TraceID.Low = rand.Uint64() - } - - childScope := exporter.ScopeID{ - SpanContext: child, - EventID: s.resources, - } - - span := &span{ - sdk: s, - initial: exporter.ScopeID{ - SpanContext: child, - EventID: s.exporter.Record(exporter.Event{ - Time: o.StartTime, - Type: exporter.START_SPAN, - Scope: s.exporter.NewScope(childScope, o.Attributes...), - Context: ctx, - Parent: parentScope, - String: name, - }, - ), - }, - } - return trace.SetCurrentSpan(ctx, span), span -}