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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.logserver.protocol;
import com.yahoo.jrt.DataValue;
import com.yahoo.jrt.ErrorCode;
import com.yahoo.jrt.Int32Value;
import com.yahoo.jrt.Int8Value;
import com.yahoo.jrt.Method;
import com.yahoo.jrt.Request;
import com.yahoo.logserver.LogDispatcher;
import com.yahoo.security.tls.Capability;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* RPC method that archives incoming log messages
*
* @author bjorncs
*/
public class ArchiveLogMessagesMethod {
static final String METHOD_NAME = "vespa.logserver.archiveLogMessages";
private static final Logger log = Logger.getLogger(ArchiveLogMessagesMethod.class.getName());
private final Executor executor = Executors.newSingleThreadExecutor();
private final LogDispatcher logDispatcher;
private final Method method;
public ArchiveLogMessagesMethod(LogDispatcher logDispatcher) {
this.logDispatcher = logDispatcher;
this.method = new Method(METHOD_NAME, "bix", "bix", this::log)
.requireCapabilities(Capability.LOGSERVER_API)
.methodDesc("Archive log messages")
.paramDesc(0, "compressionType", "Compression type (0=raw)")
.paramDesc(1, "uncompressedSize", "Uncompressed size")
.paramDesc(2, "logRequest", "Log request encoded with protobuf")
.returnDesc(0, "compressionType", "Compression type (0=raw)")
.returnDesc(1, "uncompressedSize", "Uncompressed size")
.returnDesc(2, "logResponse", "Log response encoded with protobuf");
}
public Method methodDefinition() {
return method;
}
private void log(Request rpcRequest) {
rpcRequest.detach();
executor.execute(new ArchiveLogMessagesTask(rpcRequest, logDispatcher));
}
private static class ArchiveLogMessagesTask implements Runnable {
final Request rpcRequest;
final LogDispatcher logDispatcher;
ArchiveLogMessagesTask(Request rpcRequest, LogDispatcher logDispatcher) {
this.rpcRequest = rpcRequest;
this.logDispatcher = logDispatcher;
}
@Override
public void run() {
try {
byte compressionType = rpcRequest.parameters().get(0).asInt8();
if (compressionType != 0) {
rpcRequest.setError(ErrorCode.METHOD_FAILED, "Invalid compression type: " + compressionType);
rpcRequest.returnRequest();
return;
}
int uncompressedSize = rpcRequest.parameters().get(1).asInt32();
byte[] logRequestPayload = rpcRequest.parameters().get(2).asData();
if (uncompressedSize != logRequestPayload.length) {
rpcRequest.setError(ErrorCode.METHOD_FAILED, String.format("Invalid uncompressed size: got %d while data is of size %d ", uncompressedSize, logRequestPayload.length));
rpcRequest.returnRequest();
return;
}
logDispatcher.handle(ProtobufSerialization.fromLogRequest(logRequestPayload));
logDispatcher.flush();
rpcRequest.returnValues().add(new Int8Value((byte)0));
byte[] responsePayload = ProtobufSerialization.toLogResponse();
rpcRequest.returnValues().add(new Int32Value(responsePayload.length));
rpcRequest.returnValues().add(new DataValue(responsePayload));
rpcRequest.returnRequest();
} catch (Exception e) {
String errorMessage = "Failed to handle log request: " + e.getMessage();
log.log(Level.WARNING, e, () -> errorMessage);
rpcRequest.setError(ErrorCode.METHOD_FAILED, errorMessage);
rpcRequest.returnRequest();
}
}
}
}
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