protected String handleRequest(
Channel channel, StreamInput buffer, long requestId, Version version) throws IOException {
final String action = buffer.readString();
final NettyTransportChannel transportChannel =
new NettyTransportChannel(transport, action, channel, requestId, version);
try {
final TransportRequestHandler handler = transportServiceAdapter.handler(action);
if (handler == null) {
throw new ActionNotFoundTransportException(action);
}
final TransportRequest request = handler.newInstance();
request.remoteAddress(
new InetSocketTransportAddress((InetSocketAddress) channel.getRemoteAddress()));
request.readFrom(buffer);
if (handler.executor() == ThreadPool.Names.SAME) {
//noinspection unchecked
handler.messageReceived(request, transportChannel);
} else {
threadPool
.executor(handler.executor())
.execute(new RequestHandler(handler, request, transportChannel, action));
}
} catch (Throwable e) {
try {
transportChannel.sendResponse(e);
} catch (IOException e1) {
logger.warn("Failed to send error message back to client for action [" + action + "]", e);
logger.warn("Actual Exception", e1);
}
}
return action;
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
shardSearchLocalRequest = new ShardSearchLocalRequest();
shardSearchLocalRequest.innerReadFrom(in);
originalIndices = OriginalIndices.readOriginalIndices(in);
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
fromNode = DiscoveryNode.readNode(in);
indices = new IndexMetaData[in.readVInt()];
for (int i = 0; i < indices.length; i++) {
indices[i] = IndexMetaData.Builder.readFrom(in);
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
fromNode.writeTo(out);
out.writeVInt(indices.length);
for (IndexMetaData indexMetaData : indices) {
indexMetaData.writeTo(out);
}
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
indicesLevelRequest = readRequestFrom(in);
int size = in.readVInt();
shards = new ArrayList<>(size);
for (int i = 0; i < size; i++) {
shards.add(ShardRouting.readShardRoutingEntry(in));
}
nodeId = in.readString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
indicesLevelRequest.writeTo(out);
int size = shards.size();
out.writeVInt(size);
for (int i = 0; i < size; i++) {
shards.get(i).writeTo(out);
}
out.writeString(nodeId);
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
request = newRequest();
request.readFrom(in);
if (in.getVersion().onOrAfter(Version.V_1_4_0)) {
shardId = ShardId.readShardId(in);
} else {
// older nodes will send the concrete index as part of the request
shardId = new ShardId(request.index(), in.readVInt());
}
}
private static void assertSameIndices(
IndicesRequest originalRequest, boolean optional, String... actions) {
for (String action : actions) {
List<TransportRequest> requests = consumeTransportRequests(action);
if (!optional) {
assertThat(
"no internal requests intercepted for action [" + action + "]",
requests.size(),
greaterThan(0));
}
for (TransportRequest internalRequest : requests) {
assertThat(internalRequest, instanceOf(IndicesRequest.class));
assertThat(
internalRequest.getClass().getName(),
((IndicesRequest) internalRequest).indices(),
equalTo(originalRequest.indices()));
assertThat(
((IndicesRequest) internalRequest).indicesOptions(),
equalTo(originalRequest.indicesOptions()));
}
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeLong(recoveryId);
shardId.writeTo(out);
out.writeString(metaData.name());
out.writeVLong(position);
out.writeVLong(metaData.length());
out.writeOptionalString(metaData.checksum());
out.writeBytesReference(content);
if (out.getVersion().onOrAfter(org.elasticsearch.Version.V_1_3_0)) {
out.writeOptionalString(metaData.writtenBy() == null ? null : metaData.writtenBy().name());
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
if (out.getVersion().before(Version.V_1_4_0)) {
// older nodes expect the concrete index as part of the request
request.index(shardId.getIndex());
}
request.writeTo(out);
if (out.getVersion().onOrAfter(Version.V_1_4_0)) {
shardId.writeTo(out);
} else {
out.writeVInt(shardId.id());
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeLong(recoveryId);
shardId.writeTo(out);
if (out.getVersion().onOrAfter(Version.V_1_5_0)) {
snapshotFiles.writeTo(out);
} else {
out.writeVInt(snapshotFiles.size());
for (StoreFileMetaData snapshotFile : snapshotFiles) {
out.writeString(snapshotFile.name());
}
}
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
recoveryId = in.readLong();
shardId = ShardId.readShardId(in);
if (in.getVersion().onOrAfter(Version.V_1_5_0)) {
snapshotFiles = Store.MetadataSnapshot.read(in);
} else {
int size = in.readVInt();
legacySnapshotFiles = Sets.newHashSetWithExpectedSize(size);
for (int i = 0; i < size; i++) {
legacySnapshotFiles.add(in.readString());
}
}
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
recoveryId = in.readLong();
shardId = ShardId.readShardId(in);
String name = in.readString();
position = in.readVLong();
long length = in.readVLong();
String checksum = in.readOptionalString();
content = in.readBytesReference();
Version writtenBy = null;
if (in.getVersion().onOrAfter(org.elasticsearch.Version.V_1_3_0)) {
String versionString = in.readOptionalString();
writtenBy = versionString == null ? null : Version.parseLeniently(versionString);
}
metaData = new StoreFileMetaData(name, length, checksum, writtenBy);
}
@Override
public void sendRequest(
final DiscoveryNode node,
final long requestId,
final String action,
final TransportRequest request,
TransportRequestOptions options)
throws IOException, TransportException {
final Version version = Version.smallest(node.getVersion(), this.version);
try (BytesStreamOutput stream = new BytesStreamOutput()) {
stream.setVersion(version);
stream.writeLong(requestId);
byte status = 0;
status = TransportStatus.setRequest(status);
stream.writeByte(status); // 0 for request, 1 for response.
threadPool.getThreadContext().writeTo(stream);
stream.writeString(action);
request.writeTo(stream);
stream.close();
final LocalTransport targetTransport = connectedNodes.get(node);
if (targetTransport == null) {
throw new NodeNotConnectedException(node, "Node not connected");
}
final byte[] data = stream.bytes().toBytes();
transportServiceAdapter.sent(data.length);
transportServiceAdapter.onRequestSent(node, requestId, action, request, options);
targetTransport
.workers()
.execute(
() -> {
ThreadContext threadContext = targetTransport.threadPool.getThreadContext();
try (ThreadContext.StoredContext context = threadContext.stashContext()) {
targetTransport.messageReceived(
data, action, LocalTransport.this, version, requestId);
}
});
}
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
shardSearchLocalRequest.innerWriteTo(out, false);
OriginalIndices.writeOriginalIndices(originalIndices, out);
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
repository = in.readString();
verificationToken = in.readString();
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
index = in.readString();
nodeId = in.readString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeString(index);
out.writeString(nodeId);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeLong(recoveryId);
shardId.writeTo(out);
}
private void handleRequest(
StreamInput stream,
long requestId,
int messageLengthBytes,
LocalTransport sourceTransport,
Version version)
throws Exception {
stream = new NamedWriteableAwareStreamInput(stream, namedWriteableRegistry);
final String action = stream.readString();
transportServiceAdapter.onRequestReceived(requestId, action);
inFlightRequestsBreaker()
.addEstimateBytesAndMaybeBreak(messageLengthBytes, "<transport_request>");
final LocalTransportChannel transportChannel =
new LocalTransportChannel(
this,
transportServiceAdapter,
sourceTransport,
action,
requestId,
version,
messageLengthBytes);
try {
final RequestHandlerRegistry reg = transportServiceAdapter.getRequestHandler(action);
if (reg == null) {
throw new ActionNotFoundTransportException("Action [" + action + "] not found");
}
final TransportRequest request = reg.newRequest();
request.remoteAddress(sourceTransport.boundAddress.publishAddress());
request.readFrom(stream);
if (ThreadPool.Names.SAME.equals(reg.getExecutor())) {
//noinspection unchecked
reg.processMessageReceived(request, transportChannel);
} else {
threadPool
.executor(reg.getExecutor())
.execute(
new AbstractRunnable() {
@Override
protected void doRun() throws Exception {
//noinspection unchecked
reg.processMessageReceived(request, transportChannel);
}
@Override
public boolean isForceExecution() {
return reg.isForceExecution();
}
@Override
public void onFailure(Throwable e) {
if (lifecycleState() == Lifecycle.State.STARTED) {
// we can only send a response transport is started....
try {
transportChannel.sendResponse(e);
} catch (Throwable e1) {
logger.warn(
"Failed to send error message back to client for action [{}]",
e1,
action);
logger.warn("Actual Exception", e);
}
}
}
});
}
} catch (Throwable e) {
try {
transportChannel.sendResponse(e);
} catch (Throwable e1) {
logger.warn("Failed to send error message back to client for action [{}]", e, action);
logger.warn("Actual Exception", e1);
}
}
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
shardRouting = readShardRoutingEntry(in);
reason = in.readString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeOptionalString(fromNodeId);
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
fromNodeId = in.readOptionalString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeString(repository);
out.writeString(verificationToken);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
shardRouting.writeTo(out);
out.writeString(reason);
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
recoveryId = in.readLong();
shardId = ShardId.readShardId(in);
}