Java tutorial
/* * 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.java; import com.facebook.buck.rules.AbstractBuildRuleFactory; import com.facebook.buck.rules.BuildRuleFactoryParams; import com.facebook.buck.rules.AbstractBuildRuleBuilderParams; import com.google.common.base.Optional; public class PrebuiltJarBuildRuleFactory extends AbstractBuildRuleFactory<PrebuiltJarRule.Builder> { @Override public PrebuiltJarRule.Builder newBuilder(AbstractBuildRuleBuilderParams params) { return PrebuiltJarRule.newPrebuiltJarRuleBuilder(params); } @Override protected void amendBuilder(PrebuiltJarRule.Builder builder, BuildRuleFactoryParams params) { // binary_jar String binaryJar = params.getRequiredStringAttribute("binary_jar"); String binaryJarFile = params.resolveFilePathRelativeToBuildFileDirectory(binaryJar); builder.setBinaryJar(binaryJarFile); // source_jar Optional<String> sourceJar = params.getOptionalStringAttribute("source_jar"); builder.setSourceJar(sourceJar.transform(params.getResolveFilePathRelativeToBuildFileDirectoryTransform())); // javadoc_url Optional<String> javadocUrl = params.getOptionalStringAttribute("javadoc_url"); builder.setJavadocUrl(javadocUrl); } }