platform_external_opencensus-java/all, branch simpleperf-release

Add dropwizard contrib (#1423)

2018-10-08T21:25:01+00:00

* Add dropwizard metrics producer

* Use Summary Type

* Fix reviews

* Fix reviews

Exporter/OCAgent: Move TraceProtoUtils to exporter. (#1470)

2018-09-24T23:32:55+00:00

Exporter: Start adding OC-Agent Trace Exporter. (#1455)

2018-09-24T22:27:45+00:00

Contrib: Add opencensus-contrib-opencensus-proto-util. (#1459)

2018-09-20T21:53:54+00:00

* Contrib: Add opencensus-contrib-opencensus-proto-util.

* Update CHANGELOG.

Make jmh available for all subprojects. (#1425)

2018-09-11T07:08:18+00:00

Change spring-sleuth package to include version. (#1417)

2018-09-07T19:15:16+00:00

Rename opencensus-contrib-log-correlation-log4j artifact/package to use log4j2. (#1411)

2018-09-06T20:12:52+00:00

This commit renames the artifact to opencensus-contrib-log-correlation-log4j2
and renames the package to io.opencensus.contrib.logcorrelation.log4j2.  The
name change emphasizes that the artifact only works with Log4j 2 and allows us
to add support for other versions of Log4j in the future.

Spring sleuth (#1378)

2018-09-05T19:09:44+00:00

* Initial import of OpenCensus/Sleuth integration.

* Minor fixes for integration with master.

* Adds a README.

* Removes hardcoded dependencies in build file.

* Adds contrib to spring_sleuth file path.

* Updates package names appropriately based on file renames.

* Fixes build paths.

* Fixes for build checks.

* Mark as experimental.

* Minor fixes for build files (space vs tab).

* Minor fixes for build files (space vs tab).

* Update README to absolve Spring Sleuth team of any responsibility for this spring_sleuth plugin.

* Minor fixes for import control (space vs tab).

* Tag public classes @since 0.16

* Adds javadoc for public methods not already documented.

* Updates OpenCensusSleuthTracer to pass nullness checks.

* Fixes for formatting issues.

* Fixes for typos.

* Suppresses the check return value warning added by gRPC.

* Suppresses the check return value warning added by gRPC.

Start adding log correlation for Log4j. (#1371)

2018-08-27T16:49:05+00:00

This commit takes the approach of implementing Log4j's ContextDataInjector.  It
inserts three keys into each log event: "`openCensusTraceId`", "`openCensusSpanId`",
and "`openCensusTraceSampled`".  The tracing data can be accessed with
LogEvent.getContextData() or included in a layout.  See
https://logging.apache.org/log4j/2.x/log4j-core/apidocs/org/apache/logging/log4j/core/ContextDataInjector.html.

Here is an example of a pattern layout that includes all three tracing fields
and a log entry that could be produced by the layout:

Pattern layout:
"`%d{HH:mm:ss.SSS} [%t] traceId=%X{openCensusTraceId} spanId=%X{openCensusSpanId} sampled=%X{openCensusTraceSampled} %-5level %logger{36} - %msg%n`"

Log entry:
"`20:45:52.929 [main] traceId=0af7a7bef890695f1c5e85a8e7290164 spanId=d3f07c467ec2fbb2 sampled=true WARN  io.opencensus.contrib.logcorrelation.log4j.demo.OpenCensusLog4jLogCorrelationDemo - my log message`"

The ContextDataInjector implementation must be specified with a system property,
i.e.,
"`-Dlog4j2.contextDataInjector=io.opencensus.contrib.logcorrelation.log4j.OpenCensusTraceContextDataInjector`".

The system property
"`io.opencensus.contrib.logcorrelation.log4j.OpenCensusTraceContextDataInjector.spanSelection`"
controls whether tracing data is added to all spans, no spans, or only sampled spans.

Metrics: Move metrics to opencensus-api. (#1346)

2018-08-10T22:43:52+00:00

* Metrics: Move to api.

* Update package-info to warn users on using metrics.