| /* |
| * Copyright 2012-present Facebook, Inc. |
| * |
| * 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.facebook.buck.parcelable; |
| |
| import static com.facebook.buck.rules.BuildableProperties.Kind.ANDROID; |
| |
| import com.facebook.buck.rules.AbstractBuildRuleBuilderParams; |
| import com.facebook.buck.rules.AbstractBuildable; |
| import com.facebook.buck.rules.BuildContext; |
| import com.facebook.buck.rules.BuildRuleParams; |
| import com.facebook.buck.rules.BuildRuleResolver; |
| import com.facebook.buck.rules.BuildRuleType; |
| import com.facebook.buck.rules.BuildableContext; |
| import com.facebook.buck.rules.BuildableProperties; |
| import com.facebook.buck.rules.RuleKey; |
| import com.facebook.buck.rules.SrcsAttributeBuilder; |
| import com.facebook.buck.step.ExecutionContext; |
| import com.facebook.buck.step.Step; |
| import com.facebook.buck.util.BuckConstant; |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.base.Charsets; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableSortedSet; |
| import com.google.common.io.Files; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.annotation.Nullable; |
| |
| public class GenParcelable extends AbstractBuildable { |
| |
| private final static BuildableProperties OUTPUT_TYPE = new BuildableProperties(ANDROID); |
| |
| private final ImmutableSortedSet<String> srcs; |
| private final String outputDirectory; |
| |
| private GenParcelable(BuildRuleParams buildRuleParams, |
| Set<String> srcs) { |
| this.srcs = ImmutableSortedSet.copyOf(srcs); |
| |
| this.outputDirectory = String.format("%s/%s/__%s__", |
| BuckConstant.GEN_DIR, |
| buildRuleParams.getBuildTarget().getBasePath(), |
| buildRuleParams.getBuildTarget().getShortName()); |
| } |
| |
| @Nullable |
| @Override |
| public String getPathToOutputFile() { |
| return null; |
| } |
| |
| @Override |
| public Iterable<String> getInputsToCompareToOutput() { |
| return srcs; |
| } |
| |
| @Override |
| public List<Step> getBuildSteps(BuildContext context, BuildableContext buildableContext) |
| throws IOException { |
| Step step = new Step() { |
| |
| @Override |
| public int execute(ExecutionContext context) { |
| for (String src : srcs) { |
| try { |
| // Generate the Java code for the Parcelable class. |
| ParcelableClass parcelableClass = Parser.parse(new File(src)); |
| String generatedJava = new Generator(parcelableClass).generate(); |
| |
| // Write the generated Java code to a file. |
| File outputPath = new File(getOutputPathForParcelableClass(parcelableClass)); |
| Files.createParentDirs(outputPath); |
| Files.write(generatedJava, outputPath, Charsets.UTF_8); |
| } catch (IOException e) { |
| e.printStackTrace(context.getStdErr()); |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| @Override |
| public String getShortName() { |
| return "gen_parcelable"; |
| } |
| |
| @Override |
| public String getDescription(ExecutionContext context) { |
| return "gen_parcelable"; |
| }}; |
| |
| return ImmutableList.of(step); |
| } |
| |
| @VisibleForTesting |
| private String getOutputPathForParcelableClass(ParcelableClass parcelableClass) { |
| return outputDirectory + '/' |
| + parcelableClass.getPackageName().replace('.', '/') + '/' |
| + parcelableClass.getClassName() + ".java"; |
| } |
| |
| @Override |
| public BuildableProperties getProperties() { |
| return OUTPUT_TYPE; |
| } |
| |
| @Override |
| public RuleKey.Builder appendDetailsToRuleKey(RuleKey.Builder builder) throws IOException { |
| return builder |
| .set("srcs", srcs) |
| .set("outputDirectory", outputDirectory); |
| } |
| |
| public static Builder newGenParcelableRuleBuilder(AbstractBuildRuleBuilderParams params) { |
| return new Builder(params); |
| } |
| |
| public static class Builder extends AbstractBuildable.Builder implements |
| SrcsAttributeBuilder { |
| |
| private ImmutableSortedSet.Builder<String> srcs = ImmutableSortedSet.naturalOrder(); |
| |
| private Builder(AbstractBuildRuleBuilderParams params) { |
| super(params); |
| } |
| |
| @Override |
| public Builder addSrc(String relativePathToSrc) { |
| srcs.add(relativePathToSrc); |
| return this; |
| } |
| |
| @Override |
| public BuildRuleType getType() { |
| return BuildRuleType.GEN_PARCELABLE; |
| } |
| |
| @Override |
| protected GenParcelable newBuildable(BuildRuleParams params, BuildRuleResolver resolver) { |
| return new GenParcelable(params, srcs.build()); |
| } |
| } |
| } |