// Copyright 2016 The Bazel Authors. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package com.google.devtools.build.lib.runtime; import com.google.devtools.build.lib.runtime.BlazeCommandDispatcher.LockingMode; import com.google.devtools.build.lib.runtime.proto.InvocationPolicyOuterClass.InvocationPolicy; import com.google.devtools.build.lib.server.ServerCommand; import com.google.devtools.build.lib.util.Pair; import com.google.devtools.build.lib.util.io.OutErr; import java.io.PrintWriter; import java.io.StringWriter; import java.util.List; import java.util.Optional; import java.util.logging.Logger; /** * Executes a Blaze command. * *
This is the common execution path between the gRPC server and the legacy AF_UNIX server.
*/
public class CommandExecutor implements ServerCommand {
private static final Logger logger = Logger.getLogger(CommandExecutor.class.getName());
private boolean shutdown;
private final BlazeRuntime runtime;
private final BlazeCommandDispatcher dispatcher;
CommandExecutor(BlazeRuntime runtime, BlazeCommandDispatcher dispatcher) {
this.shutdown = false;
this.runtime = runtime;
this.dispatcher = dispatcher;
}
@Override
public int exec(
InvocationPolicy invocationPolicy,
List>> startupOptionsTaggedWithBazelRc)
throws InterruptedException {
logger.info(BlazeRuntime.getRequestLogString(args));
try {
return dispatcher.exec(
invocationPolicy,
args,
outErr,
lockingMode,
clientDescription,
firstContactTime,
startupOptionsTaggedWithBazelRc);
} catch (BlazeCommandDispatcher.ShutdownBlazeServerException e) {
if (e.getCause() != null) {
StringWriter message = new StringWriter();
message.write("Shutting down due to exception:\n");
PrintWriter writer = new PrintWriter(message, true);
e.printStackTrace(writer);
writer.flush();
logger.severe(message.toString());
}
shutdown = true;
runtime.shutdown();
dispatcher.shutdown();
return e.getExitStatus();
}
}
@Override
public boolean shutdown() {
return shutdown;
}
}