Java tutorial
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We also recommend that a * file or class name and description of purpose be included on the * same "printed page" as the copyright notice for easier * identification within third-party archives. * * Copyright 2016 Alibaba Group * * 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.taobao.android.builder.tasks.app.databinding; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.concurrent.ExecutionException; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; import android.databinding.tool.DataBindingBuilder; import com.android.annotations.NonNull; import com.android.build.gradle.AndroidConfig; import com.android.build.gradle.internal.api.AppVariantContext; import com.android.build.gradle.internal.api.AppVariantOutputContext; import com.android.build.gradle.internal.core.GradleVariantConfiguration; import com.android.build.gradle.internal.tasks.BaseTask; import com.android.build.gradle.internal.variant.ApkVariantOutputData; import com.android.build.gradle.internal.variant.BaseVariantOutputData; import com.android.builder.model.AndroidLibrary; import com.google.common.base.Charsets; import com.google.common.hash.HashCode; import com.google.common.hash.HashFunction; import com.google.common.hash.Hashing; import com.google.common.io.ByteStreams; import com.google.common.io.Closer; import com.taobao.android.builder.AtlasBuildContext; import com.taobao.android.builder.dependency.AtlasDependencyTree; import com.taobao.android.builder.dependency.model.AwbBundle; import com.taobao.android.builder.tasks.manager.MtlBaseTaskAction; import com.taobao.android.builder.tools.concurrent.ExecutorServicesHelper; import org.apache.commons.io.FileUtils; import org.gradle.api.GradleException; import org.gradle.api.tasks.TaskAction; public class AwbDataBindingMergeArtifactsTask extends BaseTask { static final String taskName = "dataBindingMergeAwbsArtifacts"; private AndroidConfig androidConfig; private AppVariantContext appVariantContext; private AppVariantOutputContext appVariantOutputContext; private GradleVariantConfiguration config; private ApkVariantOutputData variantOutputData; /** * ?so */ @TaskAction void createAwbPackages() throws ExecutionException, InterruptedException { AtlasDependencyTree atlasDependencyTree = AtlasBuildContext.androidDependencyTrees.get(getVariantName()); if (null == atlasDependencyTree) { return; } ExecutorServicesHelper executorServicesHelper = new ExecutorServicesHelper(taskName, getLogger(), 0); List<Runnable> runnables = new ArrayList<>(); for (final AwbBundle awbBundle : atlasDependencyTree.getAwbBundles()) { runnables.add(new Runnable() { @Override public void run() { try { fullCopy(new File(appVariantContext.getAwbDataBindingMergeArtifacts(awbBundle), DataBindingBuilder.ARTIFACT_FILES_DIR_FROM_LIBS), awbBundle); } catch (Throwable e) { e.printStackTrace(); throw new GradleException("merge awb artifact failed"); } } }); } executorServicesHelper.execute(runnables); } private void fullCopy(File outFolder, AwbBundle awbBundle) throws IOException { FileUtils.deleteQuietly(outFolder); FileUtils.forceMkdir(outFolder); for (AndroidLibrary androidLibrary : awbBundle.getAllLibraryAars()) { File dataBindingDir = new File(androidLibrary.getFolder(), "data-binding"); if (!dataBindingDir.exists()) { continue; } File artifactFolder = new File(dataBindingDir, DataBindingBuilder.INCREMENTAL_BIN_AAR_DIR); if (!artifactFolder.exists()) { continue; } //noinspection ConstantConditions for (String artifactName : artifactFolder.list()) { if (isResource(artifactName)) { FileUtils.copyFile(new File(artifactFolder, artifactName), new File(outFolder, artifactName)); } } } for (File jarFile : awbBundle.getLibraryJars()) { extractBinFilesFromJar(outFolder, jarFile); } for (String fileName : outFolder.list()) { if (fileName.endsWith("br.bin") || fileName.endsWith("layout.bin") || fileName.endsWith("setter_store.bin")) { awbBundle.setDataBindEnabled(true); break; } } } private static boolean isResource(String fileName) { for (String ext : DataBindingBuilder.RESOURCE_FILE_EXTENSIONS) { if (fileName.endsWith(ext)) { return true; } } return false; } private void extractBinFilesFromJar(File outFolder, File jarFile) throws IOException { File jarOutFolder = getOutFolderForJarFile(outFolder, jarFile); FileUtils.deleteQuietly(jarOutFolder); FileUtils.forceMkdir(jarOutFolder); try (Closer localCloser = Closer.create()) { FileInputStream fis = localCloser.register(new FileInputStream(jarFile)); ZipInputStream zis = localCloser.register(new ZipInputStream(fis)); ZipEntry entry; while ((entry = zis.getNextEntry()) != null) { if (entry.isDirectory()) { continue; } String name = entry.getName(); if (!isResource(name)) { continue; } // get rid of the path. We don't need it since the file name includes the domain name = new File(name).getName(); File out = new File(jarOutFolder, name); //noinspection ResultOfMethodCallIgnored FileOutputStream fos = localCloser.register(new FileOutputStream(out)); ByteStreams.copy(zis, fos); zis.closeEntry(); } } } @NonNull private File getOutFolderForJarFile(File outFolder, File jarFile) { return new File(outFolder, getJarFilePrefix(jarFile)); } /** * Files exported from jars are exported into a certain folder so that we can rebuild them * when the related jar file changes. */ @NonNull private static String getJarFilePrefix(@NonNull File inputFile) { // get the filename String name = inputFile.getName(); // remove the extension int pos = name.lastIndexOf('.'); if (pos != -1) { name = name.substring(0, pos); } // add a hash of the original file path. String input = inputFile.getAbsolutePath(); HashFunction hashFunction = Hashing.sha1(); HashCode hashCode = hashFunction.hashString(input, Charsets.UTF_16LE); return name + "-" + hashCode.toString(); } public static class ConfigAction extends MtlBaseTaskAction<AwbDataBindingMergeArtifactsTask> { private AppVariantContext appVariantContext; public ConfigAction(AppVariantContext appVariantContext, BaseVariantOutputData baseVariantOutputData) { super(appVariantContext, baseVariantOutputData); this.appVariantContext = appVariantContext; } @Override public String getName() { return scope.getTaskName(taskName); } @Override public Class<AwbDataBindingMergeArtifactsTask> getType() { return AwbDataBindingMergeArtifactsTask.class; } @Override public void execute(AwbDataBindingMergeArtifactsTask packageAwbsTask) { super.execute(packageAwbsTask); packageAwbsTask.androidConfig = appVariantContext.getAppExtension(); packageAwbsTask.appVariantContext = appVariantContext; packageAwbsTask.appVariantOutputContext = getAppVariantOutputContext(); packageAwbsTask.config = scope.getVariantScope().getVariantConfiguration(); packageAwbsTask.variantOutputData = (ApkVariantOutputData) scope.getVariantOutputData(); } } }