| // 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.query2.query.output; |
| |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.packages.Target; |
| import com.google.devtools.build.lib.query2.engine.OutputFormatterCallback; |
| import com.google.devtools.build.lib.query2.engine.QueryEnvironment; |
| import com.google.devtools.build.lib.query2.engine.SynchronizedDelegatingOutputFormatterCallback; |
| import com.google.devtools.build.lib.query2.engine.ThreadSafeOutputFormatterCallback; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| /** |
| * An output formatter that prints the labels of the resulting target set in |
| * topological order, optionally with the target's kind. |
| */ |
| class LabelOutputFormatter extends AbstractUnorderedFormatter { |
| |
| private final boolean showKind; |
| |
| LabelOutputFormatter(boolean showKind) { |
| this.showKind = showKind; |
| } |
| |
| @Override |
| public String getName() { |
| return showKind ? "label_kind" : "label"; |
| } |
| |
| @Override |
| public OutputFormatterCallback<Target> createPostFactoStreamCallback( |
| OutputStream out, final QueryOptions options) { |
| return new TextOutputFormatterCallback<Target>(out) { |
| @Override |
| public void processOutput(Iterable<Target> partialResult) throws IOException { |
| String lineTerm = options.getLineTerminator(); |
| for (Target target : partialResult) { |
| if (showKind) { |
| writer.append(target.getTargetKind()); |
| writer.append(' '); |
| } |
| Label label = target.getLabel(); |
| writer.append(label.getDefaultCanonicalForm()).append(lineTerm); |
| } |
| } |
| }; |
| } |
| |
| @Override |
| public ThreadSafeOutputFormatterCallback<Target> createStreamCallback( |
| OutputStream out, QueryOptions options, QueryEnvironment<?> env) { |
| return new SynchronizedDelegatingOutputFormatterCallback<>( |
| createPostFactoStreamCallback(out, options)); |
| } |
| } |