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compiler 重构

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AriaLyy
2017-09-07 21:43:47 +08:00
parent ac99cc581f
commit 3574531d8d
31 changed files with 1103 additions and 912 deletions
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AriaCompiler/src/main/java/com/arialyy/compiler/EventProxyFiler.java Normal file
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/*
* Copyright (C) 2016 AriaLyy(https://github.com/AriaLyy/Aria)
*
* 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.arialyy.compiler;
import com.arialyy.annotations.Download;
import com.arialyy.annotations.Upload;
import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.CodeBlock;
import com.squareup.javapoet.FieldSpec;
import com.squareup.javapoet.JavaFile;
import com.squareup.javapoet.MethodSpec;
import com.squareup.javapoet.ParameterSpec;
import com.squareup.javapoet.ParameterizedTypeName;
import com.squareup.javapoet.TypeSpec;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import javax.annotation.processing.Filer;
import javax.lang.model.element.Modifier;
/**
* Created by lyy on 2017/9/6.
* 任务事件代理文件
*
* <pre>
* <code>
* package com.arialyy.simple.download;
*
* import com.arialyy.aria.core.download.DownloadTask;
* import com.arialyy.aria.core.scheduler.AbsSchedulerListener;
*
* public final class SingleTaskActivity$$DownloadListenerProxy extends
* AbsSchedulerListener<DownloadTask> {
* private SingleTaskActivity obj;
*
* public void onPre(final DownloadTask task) {
* obj.onPre((DownloadTask)task);
* }
*
* public void onTaskStart(final DownloadTask task) {
* obj.onStart((DownloadTask)task);
* }
*
* public void setListener(final Object obj) {
* this.obj = (SingleTaskActivity)obj;
* }
* }
* </code>
* </pre>
*/
final class EventProxyFiler {
private Filer mFiler;
private ParamObtainUtil mPbUtil;
EventProxyFiler(Filer filer, ParamObtainUtil pbUtil) {
mFiler = filer;
mPbUtil = pbUtil;
}
/**
* 创建任务事件代理文件
*/
void createEventProxyFile() throws IOException {
Map<String, ProxyClassParam> map = mPbUtil.getMethodParams();
Set<String> keys = mPbUtil.getMethodParams().keySet();
for (String key : keys) {
//if (key.equals(
// "com.arialyy.simple.download.SingleTaskActivity$$DownloadGroupListenerProxy")) {
//
// ProxyClassParam entity = mPbUtil.getMethodParams().get(key);
// JavaFile jf = JavaFile.builder(entity.packageName, createProxyClass(entity)).build();
// createFile(jf);
//}
ProxyClassParam entity = mPbUtil.getMethodParams().get(key);
JavaFile jf = JavaFile.builder(entity.packageName, createProxyClass(entity)).build();
createFile(jf);
}
}
/**
* 创建代理方法
*
* @param taskEnum 任务类型枚举{@link TaskEnum}
* @param annotation {@link Download}、{@link Upload}
* @param methodName 被代理类注解的方法名
*/
private MethodSpec createProxyMethod(TaskEnum taskEnum, Class<? extends Annotation> annotation,
String methodName) {
ClassName task = ClassName.get(taskEnum.getPkg(), taskEnum.getClassName());
ParameterSpec taskParam =
ParameterSpec.builder(task, "task").addModifiers(Modifier.FINAL).build();
String callCode;
if (taskEnum == TaskEnum.DOWNLOAD_GROUP_SUB) {
callCode = "task, subTask";
} else {
callCode = "task";
}
StringBuilder sb = new StringBuilder();
sb.append("Set<String> keys = keyMapping.get(\"").append(methodName).append("\");\n");
sb.append("if (keys != null) {\n\tif (keys.contains(task.getKey())) {\n")
.append("\t\tobj.")
.append(methodName)
.append("((")
.append(taskEnum.getClassName())
.append(")")
.append(callCode)
.append(");\n\t}\n} else {\n")
.append("\tobj.")
.append(methodName)
.append("((")
.append(taskEnum.getClassName())
.append(")")
.append(callCode)
.append(");\n}\n");
MethodSpec.Builder builder = MethodSpec.methodBuilder(annotation.getSimpleName())
.addModifiers(Modifier.PUBLIC)
.returns(void.class)
.addParameter(taskParam)
.addAnnotation(Override.class)
.addCode(sb.toString());
//任务组接口
if (taskEnum == TaskEnum.DOWNLOAD_GROUP_SUB) {
ClassName subTask = ClassName.get(TaskEnum.DOWNLOAD.pkg, TaskEnum.DOWNLOAD.className);
ParameterSpec subTaskParam =
ParameterSpec.builder(subTask, "subTask").addModifiers(Modifier.FINAL).build();
builder.addParameter(subTaskParam);
}
//PrintLog.getInstance().info(builder.build().toString());
return builder.build();
}
/**
* 创建代理类
*/
private TypeSpec createProxyClass(ProxyClassParam entity) {
TypeSpec.Builder builder =
TypeSpec.classBuilder(entity.proxyClassName).addModifiers(Modifier.PUBLIC, Modifier.FINAL);
//添加被代理的类的字段
ClassName obj = ClassName.get(entity.packageName, entity.className);
FieldSpec observerField = FieldSpec.builder(obj, "obj").addModifiers(Modifier.PRIVATE).build();
builder.addField(observerField);
//添加url映射表
FieldSpec mappingField = FieldSpec.builder(
ParameterizedTypeName.get(ClassName.get(Map.class), ClassName.get(String.class),
ParameterizedTypeName.get(ClassName.get(Set.class), ClassName.get(String.class))),
"keyMapping").addModifiers(Modifier.PRIVATE).initializer("new $T()", HashMap.class).build();
builder.addField(mappingField);
//添加注解方法
for (TaskEnum te : entity.methods.keySet()) {
Map<Class<? extends Annotation>, String> temp = entity.methods.get(te);
if (temp != null) {
for (Class<? extends Annotation> annotation : temp.keySet()) {
MethodSpec method = createProxyMethod(te, annotation, temp.get(annotation));
builder.addMethod(method);
}
}
}
//增加构造函数
CodeBlock.Builder cb = CodeBlock.builder();
cb.add("Set<String> set = null;\n");
for (String methodName : entity.keyMappings.keySet()) {
//PrintLog.getInstance().info("methodName ====> " + methodName);
Set<String> keys = entity.keyMappings.get(methodName);
if (keys == null || keys.size() == 0) continue;
StringBuilder sb = new StringBuilder();
sb.append("set = new $T();\n");
for (String key : keys) {
if (key.isEmpty()) continue;
sb.append("set.add(\"").append(key).append("\");\n");
}
sb.append("keyMapping.put(\"").append(methodName).append("\", ").append("set);\n");
cb.add(sb.toString(), ClassName.get(HashSet.class));
}
MethodSpec structure =
MethodSpec.constructorBuilder().addModifiers(Modifier.PUBLIC).addCode(cb.build()).build();
builder.addMethod(structure);
//添加设置代理的类
ParameterSpec parameterSpec =
ParameterSpec.builder(Object.class, "obj").addModifiers(Modifier.FINAL).build();
MethodSpec listener = MethodSpec.methodBuilder(ProxyConstance.SET_LISTENER)
.addModifiers(Modifier.PUBLIC)
.returns(void.class)
.addParameter(parameterSpec)
.addAnnotation(Override.class)
.addCode("this.obj = (" + entity.className + ")obj;\n")
.build();
builder.addJavadoc("该文件为Aria自动生成的代理文件，请不要修改该文件的任何代码！\n");
//创建父类参数
ClassName superClass = ClassName.get("com.arialyy.aria.core.scheduler", "AbsSchedulerListener");
//主任务泛型参数
ClassName taskTypeVariable =
ClassName.get(entity.mainTaskEnum.pkg, entity.mainTaskEnum.className);
//子任务泛型参数
ClassName subTaskTypeVariable =
ClassName.get(entity.subTaskEnum.pkg, entity.subTaskEnum.className);
builder.superclass(
ParameterizedTypeName.get(superClass, taskTypeVariable, subTaskTypeVariable));
builder.addMethod(listener);
return builder.build();
}
private void createFile(JavaFile jf) throws IOException {
if (ProxyConstance.DEBUG) {
// 如果需要在控制台打印生成的文件，则去掉下面的注释
jf.writeTo(System.out);
} else {
jf.writeTo(mFiler);
}
}
}