| // 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)); |
| } |
| } |