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0.98.3 release notes

25th February 2020

🌟 New features

RequestContextExporter and RequestContextExportingAppender for Logback can now export the current request ID into MDC. #2511

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>%d{HH:mm:ss.SSS} %X{req.id} %msg%n</pattern>
    </encoder>
  </appender>
  <appender name="RCEA" class="com.linecorp.armeria.common.logback.RequestContextExportingAppender">
    <appender-ref ref="CONSOLE" />
    <export>req.id</export>
  </appender>
</configuration>

Client-side options API (ClientOption and ClientFactoryOption) has been revamped. #2523
- ClientOptions.get() and ClientFactoryOptions.get() never throw an exception. A default value is returned for an unspecified option. Therefore, other getter methods such as getOrElse() have been removed.

📈 Improvements

You'll now get a ClosedStreamException instead of Http2Exception when your HTTP/2 connection was closed due to an RST_STREAM frame. #2508

🛠️ Bug fixes

*ClientBuilder.options(ClientOptions) now overrides only the specified options. #2516

ClientFactory factory = ClientFactory.insecure();
ClientOptions options = ClientOptions.builder()
                                     .responseTimeMillis(5000)
                                     .build();
WebClient client = WebClient.builder("http://foo.com")
                            .factory(factory)
                            .options(options)
                            .build();
// This assertion does not fail anymore.
assert client.options().factory() == ClientFactory.insecure();

Fixed a bug where DocService throws the java.lang.IllegalStateException: zip file closed exception while starting up. #2518 #2519
MetricCollectingClient does not count the request that failed initially due to a connection refused error and then succeeded after a retry as failure anymore. #2517
Fixed a bug where LoggingClient and LoggingSerivce does not push the current context when logging. #2528
RequestContextExporter and RequestContextExportingAppender can now export a single custom attribute into multiple MDC properties. #2521
RequestContextExporter and RequestContextExportingAppender does not export outdated custom attributes anymore. #2520
Renamed incorrect meter ID armeria.server.pendingResponses into armeria.server.pending.responses. #2506
The Date header is now encoded properly even when System.nanoTime() returns a negative value. #2530
GrpcStatus.fromThrowable() now treats ContentTooLargeException as RESOURCE_EXHAUSTED rather than INTERNAL_ERROR. #2523

☢️ Breaking changes

ClientOptions.getOrElse() and getOrNull() have been removed. get() always returns a non-null value now. #2523
ClientOptions.asMap() and ClientFactoryOptions.asMap() now return only the options overridden by a user. You can get the Set of available options using ClientOptions.allOptions() or ClientFactoryOptions.allOptions(): #2516 #2523
```
ClientOptions myOptions = ...;
Map<ClientOption<?>, Object> map = new IdentityHashMap<>();
for (ClientOption o : ClientOptions.allOptions()) {
    map.put(myOptions.get(o));
}
```
ClientOptions.valueOf() and ClientFactoryOptions.valueOf() have been split into two methods: define() and of() #2523.
- Use of() if you're getting an existing option.
- Use define() if you're defining a new option.
You might need to adjust your monitoring system if you were watching armeria.server.pendingResponses, which has been renamed to armeria.server.pending.responses in this release. #2506

⛓ Dependencies