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// Copyright 2014 Google Inc. 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.server;
import com.google.devtools.build.lib.util.io.OutErr;
import java.util.List;
/**
* The {@link RPCServer} calls an arbitrary command implementing this
* interface.
*/
public interface ServerCommand {
/**
* Executes the request, writing any output or error messages into err.
* Returns 0 on success; any other value or exception indicates an error.
*/
int exec(List<String> args, OutErr outErr, long firstContactTime) throws Exception;
/**
* The implementation returns true from this method to initiate a shutdown.
* No further requests will be handled.
*/
boolean shutdown();
}
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