Examples with ErrorMapLoadedEvent com.couchbase.client.core.cnc.events.io.ErrorMapLoadedEvent used on opensource projects

Example 1 with ErrorMapLoadedEvent

use of com.couchbase.client.core.cnc.events.io.ErrorMapLoadedEvent in project couchbase-jvm-clients by couchbase.

the class ErrorMapLoadingHandler method channelRead.

@Override
public void channelRead(final ChannelHandlerContext ctx, final Object msg) {
    Optional<Duration> latency = ConnectTimings.stop(ctx.channel(), this.getClass(), false);
    if (msg instanceof ByteBuf) {
        if (successful((ByteBuf) msg)) {
            Optional<ErrorMap> loadedMap = extractErrorMap((ByteBuf) msg);
            loadedMap.ifPresent(errorMap -> ctx.channel().attr(ChannelAttributes.ERROR_MAP_KEY).set(errorMap));
            endpointContext.environment().eventBus().publish(new ErrorMapLoadedEvent(ioContext, latency.orElse(Duration.ZERO), loadedMap));
        } else {
            endpointContext.environment().eventBus().publish(new ErrorMapLoadingFailedEvent(ioContext, latency.orElse(Duration.ZERO), status((ByteBuf) msg)));
        }
        interceptedConnectPromise.trySuccess();
        ctx.pipeline().remove(this);
    } else {
        interceptedConnectPromise.tryFailure(new CouchbaseException("Unexpected response " + "type on channel read, this is a bug - please report. " + msg));
    }
    ReferenceCountUtil.release(msg);
}

Example 2 with ErrorMapLoadedEvent

use of com.couchbase.client.core.cnc.events.io.ErrorMapLoadedEvent in project couchbase-jvm-clients by couchbase.

the class ErrorMapLoadingHandlerTest method decodeSuccessfulErrorMapV2.

/**
 * Verify that we can decode v2 of the error map.
 */
@Test
void decodeSuccessfulErrorMapV2() {
    ErrorMapLoadingHandler handler = new ErrorMapLoadingHandler(endpointContext);
    channel.pipeline().addLast(handler);
    assertEquals(handler, channel.pipeline().get(ErrorMapLoadingHandler.class));
    ChannelFuture connectFuture = channel.connect(new InetSocketAddress("1.2.3.4", 1234));
    assertFalse(connectFuture.isDone());
    channel.pipeline().fireChannelActive();
    channel.runPendingTasks();
    ByteBuf writtenRequest = channel.readOutbound();
    verifyRequest(writtenRequest, MemcacheProtocol.Opcode.ERROR_MAP.opcode(), false, false, true);
    assertNotNull(channel.pipeline().get(ErrorMapLoadingHandler.class));
    ReferenceCountUtil.release(writtenRequest);
    ByteBuf response = decodeHexDump(readResource("success_errormapv2_response.txt", ErrorMapLoadingHandlerTest.class));
    channel.writeInbound(response);
    channel.runPendingTasks();
    assertTrue(connectFuture.isSuccess());
    assertEquals(1, eventBus.publishedEvents().size());
    ErrorMapLoadedEvent event = (ErrorMapLoadedEvent) eventBus.publishedEvents().get(0);
    assertEquals(Event.Severity.DEBUG, event.severity());
    Optional<ErrorMap> maybeMap = event.errorMap();
    assertTrue(maybeMap.isPresent());
    assertNotNull(maybeMap.get());
    ErrorMap errorMap = channel.attr(ChannelAttributes.ERROR_MAP_KEY).get();
    assertEquals(errorMap, maybeMap.get());
}

Example 3 with ErrorMapLoadedEvent

use of com.couchbase.client.core.cnc.events.io.ErrorMapLoadedEvent in project couchbase-jvm-clients by couchbase.

the class ErrorMapLoadingHandlerTest method decodeSuccessfulResponseWithEmptyMap.

/**
 * This seems to be a real edge case, but when the server returns a successful
 * response but with no map, we should still handle it gracefully.
 */
@Test
void decodeSuccessfulResponseWithEmptyMap() {
    ErrorMapLoadingHandler handler = new ErrorMapLoadingHandler(endpointContext);
    channel.pipeline().addLast(handler);
    assertEquals(handler, channel.pipeline().get(ErrorMapLoadingHandler.class));
    ChannelFuture connectFuture = channel.connect(new InetSocketAddress("1.2.3.4", 1234));
    assertFalse(connectFuture.isDone());
    channel.pipeline().fireChannelActive();
    channel.runPendingTasks();
    ByteBuf writtenRequest = channel.readOutbound();
    verifyRequest(writtenRequest, MemcacheProtocol.Opcode.ERROR_MAP.opcode(), false, false, true);
    assertNotNull(channel.pipeline().get(ErrorMapLoadingHandler.class));
    ReferenceCountUtil.release(writtenRequest);
    ByteBuf response = decodeHexDump(readResource("success_empty_errormap_response.txt", ErrorMapLoadingHandlerTest.class));
    channel.writeInbound(response);
    channel.runPendingTasks();
    assertTrue(connectFuture.isSuccess());
    assertEquals(2, eventBus.publishedEvents().size());
    ErrorMapUndecodableEvent undecodableEvent = (ErrorMapUndecodableEvent) eventBus.publishedEvents().get(0);
    assertEquals("KV Error Map loaded but undecodable. " + "Message: \"No content in response\", Content: \"\"", undecodableEvent.description());
    ErrorMapLoadedEvent event = (ErrorMapLoadedEvent) eventBus.publishedEvents().get(1);
    assertEquals(Event.Severity.DEBUG, event.severity());
    Optional<ErrorMap> maybeMap = event.errorMap();
    assertFalse(maybeMap.isPresent());
}

Example 4 with ErrorMapLoadedEvent

use of com.couchbase.client.core.cnc.events.io.ErrorMapLoadedEvent in project couchbase-jvm-clients by couchbase.

the class ErrorMapLoadingHandlerTest method decodeSuccessfulErrorMap.

/**
 * Verify that when a good error map comes back, we parse and return it properly.
 */
@Test
void decodeSuccessfulErrorMap() {
    ErrorMapLoadingHandler handler = new ErrorMapLoadingHandler(endpointContext);
    channel.pipeline().addLast(handler);
    assertEquals(handler, channel.pipeline().get(ErrorMapLoadingHandler.class));
    ChannelFuture connectFuture = channel.connect(new InetSocketAddress("1.2.3.4", 1234));
    assertFalse(connectFuture.isDone());
    channel.pipeline().fireChannelActive();
    channel.runPendingTasks();
    ByteBuf writtenRequest = channel.readOutbound();
    verifyRequest(writtenRequest, MemcacheProtocol.Opcode.ERROR_MAP.opcode(), false, false, true);
    assertNotNull(channel.pipeline().get(ErrorMapLoadingHandler.class));
    ReferenceCountUtil.release(writtenRequest);
    ByteBuf response = decodeHexDump(readResource("success_errormap_response.txt", ErrorMapLoadingHandlerTest.class));
    channel.writeInbound(response);
    channel.runPendingTasks();
    assertTrue(connectFuture.isSuccess());
    assertEquals(1, eventBus.publishedEvents().size());
    ErrorMapLoadedEvent event = (ErrorMapLoadedEvent) eventBus.publishedEvents().get(0);
    assertEquals(Event.Severity.DEBUG, event.severity());
    Optional<ErrorMap> maybeMap = event.errorMap();
    assertTrue(maybeMap.isPresent());
    assertNotNull(maybeMap.get());
    ErrorMap errorMap = channel.attr(ChannelAttributes.ERROR_MAP_KEY).get();
    assertEquals(errorMap, maybeMap.get());
}