// Copyright 2014 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.actions;
import com.google.devtools.build.lib.util.io.FileOutErr;
import com.google.devtools.build.lib.vfs.Path;
import java.util.concurrent.atomic.AtomicInteger;
/**
* A source for generating unique action log paths.
*/
public final class ActionLogBufferPathGenerator {
private final AtomicInteger actionCounter = new AtomicInteger();
private final Path actionOutputRoot;
public ActionLogBufferPathGenerator(Path actionOutputRoot) {
this.actionOutputRoot = actionOutputRoot;
}
/**
* Generates a unique filename for an action to store its output.
*/
public FileOutErr generate() {
int actionId = actionCounter.incrementAndGet();
return new FileOutErr(actionOutputRoot.getRelative("stdout-" + actionId),
actionOutputRoot.getRelative("stderr-" + actionId));
}
}