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.tools.guide; import java.lang.reflect.Field; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import java.util.List; import java.util.Map; import com.taobao.android.builder.extension.AtlasExtension; import com.taobao.android.builder.extension.annotation.Config; import com.taobao.android.builder.extension.annotation.ConfigGroup; import org.apache.commons.beanutils.BeanUtils; import org.gradle.api.NamedDomainObjectContainer; /** * Created by wuzhong on 2016/12/31. * * @author wuzhong */ public class AtlasConfigHelper { public static void setProperty(Object object, Map<String, String> paramMap) throws InvocationTargetException, NoSuchFieldException, InstantiationException, IllegalAccessException { for (String key : paramMap.keySet()) { String value = paramMap.get(key); if (key.startsWith("mtl.")) { key = key.substring(4); } setProperty(object, key, value); } } public static void setProperty(Object object, String fieldName, String value) throws IllegalAccessException, InstantiationException, InvocationTargetException, NoSuchFieldException { String[] fieldNames = fieldName.split("\\."); Object last = object; for (int i = 0; i < fieldNames.length - 1; i++) { String field = fieldNames[i]; if (last instanceof NamedDomainObjectContainer) { last = ((NamedDomainObjectContainer) last).maybeCreate(field); } else { Field declaredField = last.getClass().getField(field); declaredField.setAccessible(true); if (null == declaredField.get(last)) { Object newInstance = declaredField.getType().getConstructors().getClass().newInstance(); declaredField.set(last, newInstance); } last = declaredField.get(last); } } BeanUtils.setProperty(last, fieldNames[fieldNames.length - 1], value); } public static List<AtlasConfigField> readConfig(AtlasExtension atlasExtension, String prefix) throws IllegalAccessException, NoSuchMethodException, InvocationTargetException { List<AtlasConfigField> configFieldList = new ArrayList<AtlasConfigField>(); readConfig(atlasExtension, prefix, configFieldList, 0, ""); Collections.sort(configFieldList, new Comparator<AtlasConfigField>() { @Override public int compare(AtlasConfigField o1, AtlasConfigField o2) { if (o1.groupOrder != o2.groupOrder) { return o1.groupOrder - o2.groupOrder; } int compare = String.CASE_INSENSITIVE_ORDER.compare(o1.group, o2.group); if (0 != compare) { return compare; } if (!o1.variantName.equals(o2.variantName)) { return o1.variantName.equals("release") ? 1 : -1; } return o1.order - o2.order; } }); return configFieldList; } private static void readConfig(Object object, String prefix, List<AtlasConfigField> configFieldList, int groupOrder, String variantName) throws IllegalAccessException { if (null == object) { return; } for (Field field : getAllFields(object.getClass())) { field.setAccessible(true); Config config = field.getAnnotation(Config.class); if (null != config) { AtlasConfigField configField = new AtlasConfigField(); configField.name = prefix + "." + field.getName(); configField.order = config.order(); configField.desc = config.message(); Object obj = field.get(object); configField.value = (null == obj ? null : String.valueOf(obj)); configField.groupOrder = groupOrder; configField.variantName = variantName; configField.type = field.getType().getSimpleName(); configField.advanced = config.advance(); configField.group = config.group(); configFieldList.add(configField); continue; } ConfigGroup configGroup = field.getAnnotation(ConfigGroup.class); if (null != configGroup) { Object nestedValue = field.get(object); if (nestedValue instanceof NamedDomainObjectContainer) { readConfig(((NamedDomainObjectContainer) nestedValue).maybeCreate("debug"), prefix + "." + field.getName() + ".debug", configFieldList, configGroup.order(), "debug"); readConfig(((NamedDomainObjectContainer) nestedValue).maybeCreate("release"), prefix + "." + field.getName() + ".release", configFieldList, configGroup.order(), "release"); } else { readConfig(nestedValue, prefix + "." + field.getName(), configFieldList, configGroup.order(), ""); } } } } public static List<Field> getAllFields(Class clazz) { List<Field> fieldList = new ArrayList<Field>(); getAllFields(fieldList, clazz); return fieldList; } private static List<Field> getAllFields(List<Field> fields, Class<?> type) { fields.addAll(Arrays.asList(type.getDeclaredFields())); if (type.getSuperclass() != null) { fields = getAllFields(fields, type.getSuperclass()); } return fields; } }