| // Copyright 2018 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.query2.cquery; |
| |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.devtools.build.lib.analysis.ConfiguredTarget; |
| import com.google.devtools.build.lib.events.ExtendedEventHandler; |
| import com.google.devtools.build.lib.query2.NamedThreadSafeOutputFormatterCallback; |
| import com.google.devtools.build.lib.query2.engine.QueryEnvironment.TargetAccessor; |
| import com.google.devtools.build.lib.skyframe.SkyframeExecutor; |
| import java.io.BufferedWriter; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.Writer; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Parents class for cquery output callbacks. Handles names and outputting contents of result list |
| * that is populated by child classes. |
| */ |
| public abstract class CqueryThreadsafeCallback |
| extends NamedThreadSafeOutputFormatterCallback<ConfiguredTarget> { |
| |
| protected final ExtendedEventHandler eventHandler; |
| protected final CqueryOptions options; |
| protected OutputStream outputStream; |
| protected Writer printStream; |
| protected final SkyframeExecutor skyframeExecutor; |
| protected final ConfiguredTargetAccessor accessor; |
| |
| private final List<String> result = new ArrayList<>(); |
| |
| @SuppressWarnings("DefaultCharset") |
| CqueryThreadsafeCallback( |
| ExtendedEventHandler eventHandler, |
| CqueryOptions options, |
| OutputStream out, |
| SkyframeExecutor skyframeExecutor, |
| TargetAccessor<ConfiguredTarget> accessor) { |
| this.eventHandler = eventHandler; |
| this.options = options; |
| if (out != null) { |
| this.outputStream = out; |
| // This code intentionally uses the platform default encoding. |
| this.printStream = new BufferedWriter(new OutputStreamWriter(out)); |
| } |
| this.skyframeExecutor = skyframeExecutor; |
| this.accessor = (ConfiguredTargetAccessor) accessor; |
| } |
| |
| public void addResult(String string) { |
| result.add(string); |
| } |
| |
| @VisibleForTesting |
| public List<String> getResult() { |
| return result; |
| } |
| |
| @Override |
| public void close(boolean failFast) throws InterruptedException, IOException { |
| if (!failFast && printStream != null) { |
| for (String s : result) { |
| // TODO(ulfjack): We should use queryOptions.getLineTerminator() instead. |
| printStream.append(s).append("\n"); |
| } |
| printStream.flush(); |
| } |
| } |
| } |
| |