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.manager.transform; import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.util.List; import java.util.SortedMap; import com.android.build.api.transform.Transform; import com.android.build.gradle.internal.api.AppVariantContext; import com.android.build.gradle.internal.pipeline.TransformTask; import com.android.build.gradle.internal.variant.BaseVariantOutputData; import com.android.builder.core.VariantConfiguration; import com.google.common.collect.Lists; import org.apache.commons.lang.reflect.FieldUtils; import org.gradle.api.GradleException; import org.gradle.api.tasks.TaskCollection; public class TransformManager { public static List<TransformTask> findTransformTaskByTransformType(AppVariantContext appVariantContext, Class<?> transformClass) { List<TransformTask> transformTasksList = Lists.newArrayList(); VariantConfiguration config = appVariantContext.getVariantConfiguration(); TaskCollection<TransformTask> transformTasks = appVariantContext.getProject().getTasks() .withType(TransformTask.class); SortedMap<String, TransformTask> transformTaskSortedMap = transformTasks.getAsMap(); String variantName = config.getFullName(); for (String taskName : transformTaskSortedMap.keySet()) { TransformTask transformTask = transformTaskSortedMap.get(taskName); if (variantName == transformTask.getVariantName()) { if (transformTask.getTransform().getClass() == transformClass) { transformTasksList.add(transformTask); } } } return transformTasksList; } public static void replaceTransformTask(TransformTask transformTask, Transform newTransform) { Field transfromField = FieldUtils.getDeclaredField(TransformTask.class, "transform", true); if (null != transfromField) { try { transfromField.set(transformTask, newTransform); } catch (IllegalAccessException e) { throw new GradleException(e.getMessage(), e); } } } public static void replaceTransformTask(AppVariantContext appVariantContext, BaseVariantOutputData baseVariantOutputData, Class<? extends Transform> baseTransform, Class<? extends Transform> newTransformClazz) { List<TransformTask> baseTransforms = TransformManager.findTransformTaskByTransformType(appVariantContext, baseTransform); for (TransformTask transformTask : baseTransforms) { Transform newTransform = createTransform(appVariantContext, baseVariantOutputData, newTransformClazz); replaceTransformTask(transformTask, newTransform); } } public static <T extends Transform> T createTransform(AppVariantContext appVariantContext, BaseVariantOutputData vod, Class<T> clazz) { if (null == clazz) { return null; } try { return (T) getConstructor(appVariantContext, clazz).newInstance(appVariantContext, vod); } catch (Throwable e) { e.printStackTrace(); } return null; } private static Constructor<? extends Transform> getConstructor(AppVariantContext appVariantContext, Class<? extends Transform> transformClazz) throws NoSuchMethodException { try { return transformClazz.getConstructor(appVariantContext.getClass(), BaseVariantOutputData.class); } catch (NoSuchMethodException e) { return transformClazz.getConstructor(appVariantContext.getClass().getSuperclass(), BaseVariantOutputData.class); } } }