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.shell; import com.facebook.buck.rules.AbstractBuildRuleFactory; import com.facebook.buck.rules.BuildRuleFactoryParams; import com.facebook.buck.parser.NoSuchBuildTargetException; import com.facebook.buck.rules.AbstractBuildRuleBuilderParams; import com.google.common.base.Optional; public class ExportFileBuildRuleFactory extends AbstractBuildRuleFactory<ExportFile.Builder> { @Override public ExportFile.Builder newBuilder(AbstractBuildRuleBuilderParams params) { return ExportFile.newExportFileBuilder(params); } @Override protected void amendBuilder(ExportFile.Builder builder, BuildRuleFactoryParams params) throws NoSuchBuildTargetException { Optional<String> src = params.getOptionalStringAttribute("src"); builder.setSrc(src.transform(params.getResolveFilePathRelativeToBuildFileDirectoryTransform())); Optional<String> out = params.getOptionalStringAttribute("out"); builder.setOut(out); } }