代码重构

downloadutil/src/main/java/com/arialyy/downloadutil/core/DownloadManager.java

@@ -88,7 +88,7 @@ public class DownloadManager {
 
   private DownloadManager(Context context) {
     mContext = context;
-    DownloadTarget.init(context);
+    DownloadTaskQueue.init(context);
     DbUtil.init(context);
   }
 

downloadutil/src/main/java/com/arialyy/downloadutil/core/DownloadSchedulers.java

@@ -0,0 +1,196 @@
+package com.arialyy.downloadutil.core;
+
+import android.os.Message;
+import android.util.Log;
+import com.arialyy.downloadutil.core.inf.IDownloadSchedulers;
+import com.arialyy.downloadutil.core.pool.ExecutePool;
+
+/**
+ * Created by lyy on 2016/8/16.
+ * 任务下载器，提供抽象的方法供具体的实现类操作
+ */
+public class DownloadSchedulers implements IDownloadSchedulers {
+  private static final    String             TAG      = "DownloadSchedulers";
+  private static final    Object             LOCK     = new Object();
+  private static volatile DownloadSchedulers INSTANCE = null;
+  /**
+   * 任务开始
+   */
+  public static final     int                START    = 1;
+  /**
+   * 任务停止
+   */
+  public static final     int                STOP     = 2;
+  /**
+   * 任务失败
+   */
+  public static final     int                FAIL     = 3;
+  /**
+   * 任务取消
+   */
+  public static final     int                CANCEL   = 4;
+  /**
+   * 任务完成
+   */
+  public static final     int                COMPLETE = 5;
+
+  /**
+   * 下载失败次数
+   */
+  int mFailNum = 10;
+
+  /**
+   * 超时时间
+   */
+  long mTimeOut = 10000;
+
+  /**
+   * 下载器任务监听
+   */
+  OnTargetListener  mTargetListener;
+  DownloadTaskQueue mQueue;
+
+  public static DownloadSchedulers getInstance(DownloadTaskQueue queue) {
+    if (INSTANCE == null) {
+      synchronized (LOCK) {
+        INSTANCE = new DownloadSchedulers(queue);
+      }
+    }
+    return INSTANCE;
+  }
+
+  /**
+   * Target处理任务监听
+   */
+  public interface OnTargetListener {
+    /**
+     * 任务开始
+     */
+    public void onTaskStart(Task task);
+
+    /**
+     * 任务停止
+     */
+    public void onTaskStop(Task task);
+
+    /**
+     * 任务取消
+     */
+    public void onTaskCancel(Task task);
+
+    /**
+     * 任务下载失败
+     */
+    public void onTaskFail(Task task);
+
+    /**
+     * 任务完成
+     */
+    public void onTaskComplete(Task task);
+  }
+
+  public DownloadSchedulers(DownloadTaskQueue downloadTaskQueue) {
+    mQueue = downloadTaskQueue;
+  }
+
+  @Override public boolean handleMessage(Message msg) {
+    DownloadEntity entity = (DownloadEntity) msg.obj;
+    if (entity == null) {
+      Log.e(TAG, "请传入下载实体DownloadEntity");
+      return true;
+    }
+    switch (msg.what) {
+      case STOP:
+      case CANCEL:
+        if (mQueue.getExecutePool().size() != ExecutePool.SIZE) {
+          startNextTask(entity);
+        }
+        break;
+      case COMPLETE:
+        startNextTask(entity);
+        break;
+      case FAIL:
+        handleFailTask(entity);
+        break;
+    }
+    callback(msg.what, entity);
+    return true;
+  }
+
+  /**
+   * 回调
+   *
+   * @param state 状态
+   * @param entity 下载实体
+   */
+  private void callback(int state, DownloadEntity entity) {
+    if (mTargetListener != null) {
+      Task task = mQueue.getTask(entity);
+      switch (state) {
+        case START:
+          mTargetListener.onTaskStart(task);
+          break;
+        case STOP:
+          mTargetListener.onTaskStop(task);
+          break;
+        case CANCEL:
+          mTargetListener.onTaskCancel(task);
+          break;
+        case COMPLETE:
+          mTargetListener.onTaskComplete(task);
+          break;
+        case FAIL:
+          mTargetListener.onTaskFail(task);
+          break;
+      }
+    }
+  }
+
+  /**
+   * 处理下载任务下载失败的情形
+   *
+   * @param entity 失败实体
+   */
+  @Override public void handleFailTask(DownloadEntity entity) {
+    if (entity.getFailNum() <= mFailNum) {
+      Task task = mQueue.getTask(entity);
+      mQueue.reTryStart(task);
+    } else {
+      startNextTask(entity);
+    }
+  }
+
+  /**
+   * 启动下一个任务，条件：任务停止，取消下载，任务完成
+   *
+   * @param entity 通过Handler传递的下载实体
+   */
+  @Override public void startNextTask(DownloadEntity entity) {
+    mQueue.removeTask(entity);
+    Task newTask = mQueue.getNextTask();
+    if (newTask == null) {
+      Log.w(TAG, "没有下一任务");
+      return;
+    }
+    if (newTask.getDownloadEntity().getState() == DownloadEntity.STATE_WAIT) {
+      mQueue.startTask(newTask);
+    }
+  }
+
+  /**
+   * 设置下载器监听
+   *
+   * @param targetListener {@link OnTargetListener}
+   */
+  public void setOnTargetListener(OnTargetListener targetListener) {
+    this.mTargetListener = targetListener;
+  }
+
+  public void setFailNum(int mFailNum) {
+    this.mFailNum = mFailNum;
+  }
+
+  public void setTimeOut(long timeOut) {
+    this.mTimeOut = timeOut;
+  }
+}

downloadutil/src/main/java/com/arialyy/downloadutil/core/DownloadTaskQueue.java

@@ -2,42 +2,80 @@ package com.arialyy.downloadutil.core;
 
 import android.content.Context;
 import android.util.Log;
+import com.arialyy.downloadutil.core.inf.IDownloadSchedulers;
+import com.arialyy.downloadutil.core.inf.IDownloader;
+import com.arialyy.downloadutil.core.inf.ITaskQueue;
+import com.arialyy.downloadutil.core.pool.CachePool;
+import com.arialyy.downloadutil.core.pool.ExecutePool;
 
 /**
  * Created by lyy on 2016/8/17.
- * 下载任务调度类
+ * 下载任务队列
  */
-public class DownloadTarget extends IDownloadTarget {
+public class DownloadTaskQueue implements ITaskQueue, IDownloader {
-  private static final    String         TAG      = "DownloadTarget";
+  private static final    String            TAG          = "DownloadTaskQueue";
-  private static final    Object         LOCK     = new Object();
+  private static final    Object            LOCK         = new Object();
-  private static volatile DownloadTarget INSTANCE = null;
+  private static volatile DownloadTaskQueue INSTANCE     = null;
+  private                 CachePool         mCachePool   = CachePool.getInstance();
+  private                 ExecutePool       mExecutePool = ExecutePool.getInstance();
   private Context mContext;
 
-  public static DownloadTarget getInstance() {
+  public static DownloadTaskQueue getInstance() {
     if (INSTANCE == null) {
       throw new NullPointerException("请在Application中调用init进行注册");
     }
     return INSTANCE;
   }
 
-  static DownloadTarget init(Context context) {
+  static DownloadTaskQueue init(Context context) {
     if (INSTANCE == null) {
       synchronized (LOCK) {
-        INSTANCE = new DownloadTarget(context.getApplicationContext());
+        INSTANCE = new DownloadTaskQueue(context.getApplicationContext());
       }
     }
     return INSTANCE;
   }
 
-  private DownloadTarget() {
+  private DownloadTaskQueue() {
-    super();
   }
 
-  private DownloadTarget(Context context) {
+  private DownloadTaskQueue(Context context) {
     super();
     mContext = context;
   }
 
+  /**
+   * 获取任务执行池
+   */
+  public ExecutePool getExecutePool() {
+    return mExecutePool;
+  }
+
+  /**
+   * 获取缓存池
+   */
+  public CachePool getCachePool() {
+    return mCachePool;
+  }
+
+  /**
+   * 获取当前运行的任务数
+   *
+   * @return 当前正在执行的任务数
+   */
+  public int getCurrentTaskNum() {
+    return mExecutePool.size();
+  }
+
+  /**
+   * 获取缓存任务数
+   *
+   * @return 获取缓存的任务数
+   */
+  public int getCacheTaskNum() {
+    return mCachePool.size();
+  }
+
   @Override public void startTask(Task task) {
     if (mExecutePool.putTask(task)) {
       mCachePool.removeTask(task);
@@ -71,7 +109,14 @@ public class DownloadTarget extends IDownloadTarget {
   }
 
   @Override public Task createTask(DownloadEntity entity) {
-    Task task = TaskFactory.getInstance().createTask(mContext, entity, mTaskHandler);
+    return createTask(entity, null);
+  }
+
+  @Override public Task createTask(DownloadEntity entity, IDownloadSchedulers schedulers) {
+    if (schedulers == null) {
+      schedulers = DownloadSchedulers.getInstance(this);
+    }
+    Task task = TaskFactory.getInstance().createTask(mContext, entity, schedulers);
     mCachePool.putTask(task);
     return task;
   }

downloadutil/src/main/java/com/arialyy/downloadutil/core/IDownloadTarget.java

@@ -1,226 +0,0 @@
-package com.arialyy.downloadutil.core;
-
-import android.os.Handler;
-import android.os.Message;
-import android.util.Log;
-import com.arialyy.downloadutil.core.inf.IDownloader;
-import com.arialyy.downloadutil.core.inf.ITask;
-import com.arialyy.downloadutil.core.pool.CachePool;
-import com.arialyy.downloadutil.core.pool.ExecutePool;
-
-/**
- * Created by lyy on 2016/8/16.
- * 任务下载器，提供抽象的方法供具体的实现类操作
- */
-public abstract class IDownloadTarget implements IDownloader, ITask {
-  /**
-   * 任务开始
-   */
-  public static final int START    = 1;
-  /**
-   * 任务停止
-   */
-  public static final int STOP     = 2;
-  /**
-   * 任务失败
-   */
-  public static final int FAIL     = 3;
-  /**
-   * 任务取消
-   */
-  public static final int CANCEL   = 4;
-  /**
-   * 任务完成
-   */
-  public static final int COMPLETE = 5;
-
-  protected CachePool   mCachePool   = CachePool.getInstance();
-  protected ExecutePool mExecutePool = ExecutePool.getInstance();
-  protected AutoTaskHandler mTaskHandler;
-  /**
-   * 下载失败次数
-   */
-  protected int mFailNum = 10;
-
-  /**
-   * 超时时间
-   */
-  protected long mTimeOut = 10000;
-
-  /**
-   * 下载器任务监听
-   */
-  protected OnTargetListener mTargetListener;
-
-  /**
-   * Target处理任务监听
-   */
-  public interface OnTargetListener {
-    /**
-     * 任务开始
-     */
-    public void onTaskStart(Task task);
-
-    /**
-     * 任务停止
-     */
-    public void onTaskStop(Task task);
-
-    /**
-     * 任务取消
-     */
-    public void onTaskCancel(Task task);
-
-    /**
-     * 任务下载失败
-     */
-    public void onTaskFail(Task task);
-
-    /**
-     * 任务完成
-     */
-    public void onTaskComplete(Task task);
-  }
-
-  protected IDownloadTarget() {
-    mTaskHandler = new AutoTaskHandler(this);
-  }
-
-  /**
-   * 设置下载器监听
-   *
-   * @param targetListener {@link OnTargetListener}
-   */
-  public void setOnTargetListener(OnTargetListener targetListener) {
-    this.mTargetListener = targetListener;
-  }
-
-  /**
-   * 获取任务执行池
-   */
-  public ExecutePool getExecutePool() {
-    return mExecutePool;
-  }
-
-  /**
-   * 获取当前运行的任务数
-   *
-   * @return 当前正在执行的任务数
-   */
-  public int getCurrentTaskNum() {
-    return mExecutePool.size();
-  }
-
-  /**
-   * 获取缓存任务数
-   *
-   * @return 获取缓存的任务数
-   */
-  public int getCacheTaskNum() {
-    return mCachePool.size();
-  }
-
-  public void setFailNum(int mFailNum) {
-    this.mFailNum = mFailNum;
-  }
-
-  public void setTimeOut(long timeOut) {
-    this.mTimeOut = timeOut;
-  }
-
-  /**
-   * 自动处理任务停止，下载失败，取消下载，自动下载下一个任务的操作
-   */
-  private static class AutoTaskHandler extends Handler {
-    private static final String TAG = "AutoTaskHandler";
-    IDownloadTarget target;
-
-    public AutoTaskHandler(IDownloadTarget target) {
-      this.target = target;
-    }
-
-    @Override public void handleMessage(Message msg) {
-      super.handleMessage(msg);
-      DownloadEntity entity = (DownloadEntity) msg.obj;
-      if (entity == null) {
-        Log.e(TAG, "请传入下载实体DownloadEntity");
-        return;
-      }
-      switch (msg.what) {
-        case STOP:
-        case CANCEL:
-          if (target.mExecutePool.size() != ExecutePool.SIZE) {
-            startNextTask(entity);
-          }
-          break;
-        case COMPLETE:
-          startNextTask(entity);
-          break;
-        case FAIL:
-          handleFailTask(entity);
-          break;
-      }
-      callback(msg.what, entity);
-    }
-
-    /**
-     * 回调
-     *
-     * @param state 状态
-     * @param entity 下载实体
-     */
-    private void callback(int state, DownloadEntity entity) {
-      if (target.mTargetListener != null) {
-        Task task = target.getTask(entity);
-        switch (state) {
-          case START:
-            target.mTargetListener.onTaskStart(task);
-            break;
-          case STOP:
-            target.mTargetListener.onTaskStop(task);
-            break;
-          case CANCEL:
-            target.mTargetListener.onTaskCancel(task);
-            break;
-          case COMPLETE:
-            target.mTargetListener.onTaskComplete(task);
-            break;
-          case FAIL:
-            target.mTargetListener.onTaskFail(task);
-            break;
-        }
-      }
-    }
-
-    /**
-     * 处理下载任务下载失败的情形
-     *
-     * @param entity 失败实体
-     */
-    private void handleFailTask(DownloadEntity entity) {
-      if (entity.getFailNum() <= target.mFailNum) {
-        Task task = target.getTask(entity);
-        target.reTryStart(task);
-      } else {
-        startNextTask(entity);
-      }
-    }
-
-    /**
-     * 启动下一个任务，条件：任务停止，取消下载，任务完成
-     *
-     * @param entity 通过Handler传递的下载实体
-     */
-    private void startNextTask(DownloadEntity entity) {
-      target.removeTask(entity);
-      Task newTask = target.getNextTask();
-      if (newTask == null) {
-        Log.w(TAG, "没有下一任务");
-        return;
-      }
-      if (newTask.getDownloadEntity().getState() == DownloadEntity.STATE_WAIT) {
-        target.startTask(newTask);
-      }
-    }
-  }
-}

downloadutil/src/main/java/com/arialyy/downloadutil/core/Task.java

@@ -5,6 +5,7 @@ import android.content.Intent;
 import android.net.Uri;
 import android.os.Handler;
 import android.util.Log;
+import com.arialyy.downloadutil.core.inf.IDownloadSchedulers;
 import com.arialyy.downloadutil.core.inf.IDownloadUtil;
 
 /**
@@ -58,7 +59,7 @@ public class Task {
     } else {
       mEntity.setState(DownloadEntity.STATE_STOP);
       mEntity.save();
-      sendInState2Target(IDownloadTarget.STOP);
+      sendInState2Target(DownloadSchedulers.STOP);
 
       // 发送停止下载的广播
       Intent intent = createIntent(DownloadManager.ACTION_STOP);
@@ -94,7 +95,7 @@ public class Task {
       mUtil.delConfigFile();
       mUtil.delTempFile();
       mEntity.deleteData();
-      sendInState2Target(IDownloadTarget.CANCEL);
+      sendInState2Target(DownloadSchedulers.CANCEL);
 
       //发送取消下载的广播
       Intent intent = createIntent(DownloadManager.ACTION_CANCEL);
@@ -118,7 +119,7 @@ public class Task {
   /**
    * 将任务状态发送给下载器
    *
-   * @param state {@link IDownloadTarget#START}
+   * @param state {@link DownloadSchedulers#START}
    */
   private void sendInState2Target(int state) {
     if (mOutHandler != null) {
@@ -170,7 +171,7 @@ public class Task {
     @Override public void onStart(long startLocation) {
       super.onStart(startLocation);
       downloadEntity.setState(DownloadEntity.STATE_DOWNLOAD_ING);
-      sendInState2Target(IDownloadTarget.START);
+      sendInState2Target(DownloadSchedulers.START);
       sendIntent(DownloadManager.ACTION_START, startLocation);
     }
 
@@ -197,14 +198,14 @@ public class Task {
       super.onStop(stopLocation);
       downloadEntity.setState(DownloadEntity.STATE_STOP);
       downloadEntity.setSpeed(0);
-      sendInState2Target(IDownloadTarget.STOP);
+      sendInState2Target(DownloadSchedulers.STOP);
       sendIntent(DownloadManager.ACTION_STOP, stopLocation);
     }
 
     @Override public void onCancel() {
       super.onCancel();
       downloadEntity.setState(DownloadEntity.STATE_CANCEL);
-      sendInState2Target(IDownloadTarget.CANCEL);
+      sendInState2Target(DownloadSchedulers.CANCEL);
       sendIntent(DownloadManager.ACTION_CANCEL, -1);
       downloadEntity.deleteData();
     }
@@ -214,7 +215,7 @@ public class Task {
       downloadEntity.setState(DownloadEntity.STATE_COMPLETE);
       downloadEntity.setDownloadComplete(true);
       downloadEntity.setSpeed(0);
-      sendInState2Target(IDownloadTarget.COMPLETE);
+      sendInState2Target(DownloadSchedulers.COMPLETE);
       sendIntent(DownloadManager.ACTION_COMPLETE, downloadEntity.getFileSize());
     }
 
@@ -222,7 +223,7 @@ public class Task {
       super.onFail();
       downloadEntity.setState(DownloadEntity.STATE_FAIL);
       downloadEntity.setSpeed(0);
-      sendInState2Target(IDownloadTarget.FAIL);
+      sendInState2Target(DownloadSchedulers.FAIL);
       sendIntent(DownloadManager.ACTION_FAIL, -1);
     }
 
@@ -254,10 +255,10 @@ public class Task {
     /**
      * 设置自定义Handler处理下载状态时间
      *
-     * @param outHandler {@link IDownloadTarget.AutoTaskHandler}
+     * @param schedulers {@link IDownloadSchedulers}
      */
-    public Builder setOutHandler(Handler outHandler) {
+    public Builder setOutHandler(IDownloadSchedulers schedulers) {
-      this.outHandler = outHandler;
+      this.outHandler = new Handler(schedulers);
       return this;
     }
 

downloadutil/src/main/java/com/arialyy/downloadutil/core/TaskFactory.java

@@ -1,7 +1,7 @@
 package com.arialyy.downloadutil.core;
 
 import android.content.Context;
-import android.os.Handler;
+import com.arialyy.downloadutil.core.inf.IDownloadSchedulers;
 
 /**
  * Created by lyy on 2016/8/18.
@@ -30,11 +30,11 @@ public class TaskFactory {
    * 创建普通下载任务
    *
    * @param entity 下载实体
-   * @param handler "com.arialyy.downloadutil.core.IDownloadTarget.AutoTaskHandler"
+   * @param schedulers {@link IDownloadSchedulers}
    */
-  public Task createTask(Context context, DownloadEntity entity, Handler handler) {
+  public Task createTask(Context context, DownloadEntity entity, IDownloadSchedulers schedulers) {
     Task.Builder builder = new Task.Builder(context, entity);
-    builder.setOutHandler(handler);
+    builder.setOutHandler(schedulers);
     return builder.build();
   }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/CmdFactory.java

@@ -28,10 +28,6 @@ public class CmdFactory {
    * 停止任务
    */
   public static final int TASK_STOP   = 0x125;
-  /**
-   * 获取任务状态
-   */
-  public static final int TASK_STATE  = 0x126;
 
   private static final    Object     LOCK     = new Object();
   private static volatile CmdFactory INSTANCE = null;
@@ -53,7 +49,7 @@ public class CmdFactory {
    * @param context context
    * @param entity 下载实体
    * @param type 命令类型{@link #TASK_CREATE}、{@link #TASK_START}、{@link #TASK_CANCEL}、{@link
-   * #TASK_STOP}、{@link #TASK_STATE}
+   * #TASK_STOP}
    */
   public IDownloadCmd createCmd(Context context, DownloadEntity entity, int type) {
     switch (type) {
@@ -66,22 +62,11 @@ public class CmdFactory {
         return createCancelCmd(context, entity);
       case TASK_STOP:
         return createStopCmd(context, entity);
-      case TASK_STATE:
-        return createStateCmd(context, entity);
       default:
         return null;
     }
   }
 
-  /**
-   * 创建获取任务状态的命令
-   *
-   * @return {@link StateCmd}
-   */
-  private StateCmd createStateCmd(Context context, DownloadEntity entity) {
-    return new StateCmd(context, entity);
-  }
-
   /**
    * 创建停止命令
    *

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/IDownloadCmd.java

@@ -1,9 +1,8 @@
 package com.arialyy.downloadutil.core.command;
 
 import android.content.Context;
-import com.arialyy.downloadutil.core.DownloadTarget;
-import com.arialyy.downloadutil.core.IDownloadTarget;
 import com.arialyy.downloadutil.core.DownloadEntity;
+import com.arialyy.downloadutil.core.DownloadTaskQueue;
 import com.arialyy.downloadutil.help.CheckHelp;
 import com.arialyy.downloadutil.util.Util;
 
@@ -12,10 +11,10 @@ import com.arialyy.downloadutil.util.Util;
  * 下载命令
  */
 public abstract class IDownloadCmd {
-  protected IDownloadTarget target;
+  DownloadTaskQueue target;
-  protected Context         mContext;
+  Context           mContext;
-  protected DownloadEntity  mEntity;
+  DownloadEntity    mEntity;
-  protected String          TAG;
+  String            TAG;
 
   /**
    * @param context context
@@ -25,7 +24,7 @@ public abstract class IDownloadCmd {
     if (!CheckHelp.checkDownloadEntity(entity)) {
       return;
     }
-    target = DownloadTarget.getInstance();
+    target = DownloadTaskQueue.getInstance();
     mContext = context;
     mEntity = entity;
     TAG = Util.getClassName(this);
@@ -43,9 +42,9 @@ public abstract class IDownloadCmd {
   /**
    * 设置下载器
    *
-   * @param downloadTarget {@link IDownloadTarget}
+   * @param downloadTarget {@link DownloadTaskQueue}
    */
-  public void setDownloadTarget(IDownloadTarget downloadTarget) {
+  public void setDownloadQueue(DownloadTaskQueue downloadTarget) {
     target = downloadTarget;
   }
 }

downloadutil/src/main/java/com/arialyy/downloadutil/core/command/StateCmd.java

@@ -1,24 +0,0 @@
-package com.arialyy.downloadutil.core.command;
-
-import android.content.Context;
-import com.arialyy.downloadutil.core.DownloadEntity;
-
-/**
- * Created by lyy on 2016/9/20.
- * 获取下载状态的命令
- */
-class StateCmd extends IDownloadCmd {
-
-  /**
-   * @param context context
-   * @param entity 下载实体
-   */
-  StateCmd(Context context, DownloadEntity entity) {
-    super(context, entity);
-  }
-
-  @Override public void executeComment() {
-
-    target.getTaskState(mEntity);
-  }
-}

downloadutil/src/main/java/com/arialyy/downloadutil/core/inf/IDownloadSchedulers.java

@@ -0,0 +1,25 @@
+package com.arialyy.downloadutil.core.inf;
+
+import android.os.Handler;
+import com.arialyy.downloadutil.core.DownloadEntity;
+
+/**
+ * Created by “AriaLyy@outlook.com” on 2016/11/2.
+ * 下载调度器接口
+ */
+public interface IDownloadSchedulers extends Handler.Callback {
+
+  /**
+   * 处理下载任务下载失败的情形
+   *
+   * @param entity 下载实体
+   */
+  public void handleFailTask(DownloadEntity entity);
+
+  /**
+   * 启动下一个任务，条件：任务停止，取消下载，任务完成
+   *
+   * @param entity 通过Handler传递的下载实体
+   */
+  public void startNextTask(DownloadEntity entity);
+}

downloadutil/src/main/java/com/arialyy/downloadutil/core/inf/ITaskQueue.java

@@ -7,7 +7,7 @@ import com.arialyy.downloadutil.core.Task;
  * Created by lyy on 2016/8/16.
  * 任务功能接口
  */
-public interface ITask {
+public interface ITaskQueue {
 
   /**
    * 创建一个新的下载任务，创建时只是将新任务存储到缓存池
@@ -17,6 +17,15 @@ public interface ITask {
    */
   public Task createTask(DownloadEntity entity);
 
+  /**
+   * 创建一个新的下载任务，创建时只是将新任务存储到缓存池
+   *
+   * @param entity 下载实体{@link DownloadEntity}
+   * @param schedulers 下载调度器{@link IDownloadSchedulers}
+   * @return {@link Task}
+   */
+  public Task createTask(DownloadEntity entity, IDownloadSchedulers schedulers);
+
   /**
    * 通过下载链接从缓存池或任务池搜索下载任务，如果缓存池或任务池都没有任务，则创建新任务
    *

downloadutil/src/main/java/com/arialyy/downloadutil/help/Lockhelp.java

@@ -0,0 +1,10 @@
+package com.arialyy.downloadutil.help;
+
+/**
+ * Created by “AriaLyy@outlook.com” on 2016/11/2.
+ */
+public class LockHelp {
+  public static final Object LOCK = new Object();
+
+
+}