Java tutorial
/* * Copyright 2017 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.nativeplatform.internal.modulemap; import com.google.common.collect.Lists; import com.google.common.io.Files; import org.apache.commons.io.FileUtils; import org.gradle.api.Transformer; import org.gradle.api.UncheckedIOException; import org.gradle.api.specs.Spec; import java.io.File; import java.io.IOException; import java.util.List; import static org.gradle.util.CollectionUtils.collect; import static org.gradle.util.CollectionUtils.filter; public class GenerateModuleMapFile { public static void generateFile(File moduleMapFile, String moduleName, List<String> publicHeaderDirs) { List<String> lines = Lists.newArrayList("module " + moduleName + " {"); List<String> validHeaderDirs = filter(publicHeaderDirs, new Spec<String>() { @Override public boolean isSatisfiedBy(String path) { return new File(path).exists(); } }); lines.addAll(collect(validHeaderDirs, new Transformer<String, String>() { @Override public String transform(String path) { return "\tumbrella \"" + path + "\""; } })); lines.add("\texport *"); lines.add("}"); try { Files.createParentDirs(moduleMapFile); FileUtils.writeLines(moduleMapFile, lines); } catch (IOException e) { throw new UncheckedIOException("Could not generate a module map for " + moduleName, e); } } }