### Java WorkerWrapper Initialization Example

Source: https://github.com/twilight19870/asynctool/blob/master/QuickStart.md

This Java code demonstrates the instantiation of WorkerWrapper objects, which combine a worker and its associated callback. It shows how to create multiple wrappers, likely for composing asynchronous tasks.

```java
WorkerWrapper<String, String> workerWrapper = new WorkerWrapper<>(w, "0", w);
WorkerWrapper<String, String> workerWrapper1 = new WorkerWrapper<>(w1, "1", w1);
WorkerWrapper<String, String> workerWrapper2 = new WorkerWrapper<>(w2, "2", w2);
WorkerWrapper<String, String> workerWrapper3 = new WorkerWrapper<>(w3, "3", w3);
```

--------------------------------

### Java Example: ParWorker1 Implementation

Source: https://github.com/twilight19870/asynctool/blob/master/QuickStart.md

This Java class, ParWorker1, provides a concrete implementation of the IWorker and ICallback interfaces. It includes a simulated time-consuming 'action' method, a 'defaultValue' for error handling, and 'begin' and 'result' methods for callback notifications.

```java
/**
 * @author wuweifeng wrote on 2019-11-20.
 */
public class ParWorker1 implements IWorker<String, String>, ICallback<String, String> {

    @Override
    public String action(String object) {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "result = " + SystemClock.now() + "---param = " + object + " from 1";
    }

    @Override
    public String defaultValue() {
        return "worker1--default";
    }

    @Override
    public void begin() {
        //System.out.println(Thread.currentThread().getName() + "- start --" + System.currentTimeMillis());
    }

    @Override
    public void result(boolean success, String param, WorkResult<String> workResult) {
        if (success) {
            System.out.println("callback worker1 success--" + SystemClock.now() + "----<ctrl63>
```

--------------------------------

### Maven Configuration for Jitpack.io

Source: https://github.com/twilight19870/asynctool/blob/master/QuickStart.md

This XML configuration is required to use the AsyncTool library from jitpack.io. It involves adding the jitpack.io repository to your Maven project's repositories section.

```xml
<repositories>
	<repository>
	    <id>jitpack.io</id>
	    <url>https://jitpack.io</url>
	</repository>
</repositories>
```

--------------------------------

### Maven Dependency for External Use (Jitpack.io)

Source: https://github.com/twilight19870/asynctool/blob/master/QuickStart.md

This snippet demonstrates how to include the AsyncTool library as a Maven dependency when using the version published on jitpack.io. It specifies the group ID, artifact ID, and version.

```xml
<dependency>
    <groupId>com.gitee.jd-platform-opensource</groupId>
    <artifactId>asyncTool</artifactId>
    <version>V1.3-SNAPSHOT</version>
</dependency>
```

--------------------------------

### Maven Dependency for JD Internal Use

Source: https://github.com/twilight19870/asynctool/blob/master/QuickStart.md

This snippet shows how to add the AsyncTool library as a Maven dependency for internal use within JD. It specifies the group ID, artifact ID, and version for the dependency.

```xml
<dependency>
    <groupId>com.jd.platform</groupId>
    <artifactId>asyncTool</artifactId>
    <version>1.3.1-SNAPSHOT</version>
</dependency>
```

--------------------------------

### Java Interface: ICallback

Source: https://github.com/twilight19870/asynctool/blob/master/QuickStart.md

The ICallback interface provides a mechanism to receive notifications about the execution status of a worker. Implementations can handle the beginning of a task and the final result, including success or failure status, parameters, and the work result.

```java
/**
 * 每个执行单元执行完毕后，会回调该接口</p>
 * 需要监听执行结果的，实现该接口即可
 * @author wuweifeng wrote on 2019-11-19.
 */
public interface ICallback<T, V> {

    void begin();

    /**
     * 耗时操作执行完毕后，就给value注入值
     *
     */
    void result(boolean success, T param, WorkResult<V> workResult);

}
```

--------------------------------

### Java Interface: IWorker

Source: https://github.com/twilight19870/asynctool/blob/master/QuickStart.md

The IWorker interface defines the contract for a minimal task execution unit in the AsyncTool framework. It includes methods for performing the core action, defining a default value for fallback scenarios, and handling callback logic.

```java
/**
 * 每个最小执行单元需要实现该接口
 * @author wuweifeng wrote on 2019-11-19. 
 */
public interface IWorker<T, V> {
    /**
     * 在这里做耗时操作，如rpc请求、IO等
     *
     * @param object
     *         object
     */
    V action(T object, Map<String, WorkerWrapper> allWrappers);

    /**
     * 超时、异常时，返回的默认值
     * @return 默认值
     */
    V defaultValue();
}
```

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