The metrics are collected in a new handler (BackendMetricsHandler), which gets outbound FullHttpRequest and inbound FullHttpResponse. All metrics collected here are backend metrics, i. e. metrics about connection between the proxy and GAE. They also corresponds to the metrics that we are correctly collection from the [] proxy, minus a few that are related to quota management, which are yet to be implemented.
This CL also removed some unnecessary steps to write the frontend protocol name and client hash certificate into backend channel attributes. Instead, BackendMetricsHandler will read these information from the frontend channel attributes directly. This is because backend channel is established after frontend channel, and reading frontend channel attributes from backend handlers always works. On the other hand, there is no easy way to guarantee that the backend channel attributes are writable from frontend handlers, because the channel itself may not have been fully established.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=174513334
Currently to assert that a given Metric<Distribution> as a certain distribution for some labels, the caller needs to manually create an ImmutableDistribution and pass it to #hasValueForLabels method. With this change, an ImmutableSet of data points can be passed to #hasDataSetForLabels method.
Also switched to use expectThrow backport from JUnit 4.13.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=173544521
This was a surprisingly involved change. Some of the difficulties included
java.util.Optional purposely not being Serializable (so I had to move a
few Optionals in mapreduce classes to @Nullable) and having to add the Truth
Java8 extension library for assertion support.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171863777
The concrete implementation of a Metric is not of importance when asserting on the values it contains. Therefore this CL removes Metric<T> as a type parameter of AbstractMetricSubject. As a result the two implementations of the abstract subject can be used on any Metric<Long> and Metric<Distribution>, respectively.
Also migrate to Subject.Factory from deprecated SubjectFactory.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171012012
