Java tutorial
/* * Copyright 2015 the original author or authors. * * 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 org.gradle.platform.base.internal; import com.google.common.base.Function; import com.google.common.collect.ImmutableSet; import com.google.common.collect.Lists; import org.gradle.api.Action; import org.gradle.platform.base.DependencySpec; import org.gradle.platform.base.DependencySpecBuilder; import org.gradle.platform.base.DependencySpecContainer; import java.util.Collection; import java.util.Collections; import java.util.LinkedList; import java.util.List; public class DefaultDependencySpecContainer implements DependencySpecContainer { private final List<DefaultDependencySpec.Builder> builders = new LinkedList<DefaultDependencySpec.Builder>(); @Override public DependencySpecBuilder project(final String path) { return doCreate(new Action<DefaultDependencySpec.Builder>() { @Override public void execute(DefaultDependencySpec.Builder builder) { builder.project(path); } }); } @Override public DependencySpecBuilder library(final String name) { return doCreate(new Action<DefaultDependencySpec.Builder>() { @Override public void execute(DefaultDependencySpec.Builder builder) { builder.library(name); } }); } public Collection<DependencySpec> getDependencies() { if (builders.isEmpty()) { return Collections.emptySet(); } return ImmutableSet .copyOf(Lists.transform(builders, new Function<DefaultDependencySpec.Builder, DependencySpec>() { @Override public DependencySpec apply(DefaultDependencySpec.Builder builder) { return builder.build(); } })); } private DefaultDependencySpec.Builder doCreate(Action<? super DefaultDependencySpec.Builder> action) { DefaultDependencySpec.Builder builder = new DefaultDependencySpec.Builder(); action.execute(builder); builders.add(builder); return builder; } @Override public boolean isEmpty() { return builders.isEmpty(); } }