intercept

PublicComponent/src/main/java/com/arialyy/aria/core/loader/ConstantIntercept.java

@@ -0,0 +1,29 @@
+
+/*
+ * 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.aria.core.loader;
+
+/**
+ * 用于初始化一些常用的常量
+ */
+public final class ConstantIntercept implements ILoaderInterceptor {
+
+
+
+  @Override public ILoader intercept(Chain chain) {
+    return null;
+  }
+}

PublicComponent/src/main/java/com/arialyy/aria/core/loader/ILoader.java

@@ -0,0 +1,29 @@
+/*
+ * 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.aria.core.loader;
+
+public interface ILoader {
+
+  void start();
+
+  void stop();
+
+  void isBreak();
+
+  String getKey();
+
+  long getCurrentProgress();
+}

PublicComponent/src/main/java/com/arialyy/aria/core/loader/ILoaderInterceptor.java

@@ -0,0 +1,41 @@
+/*
+ * 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.aria.core.loader;
+
+import com.arialyy.aria.core.TaskRecord;
+import com.arialyy.aria.core.listener.IEventListener;
+import com.arialyy.aria.core.wrapper.ITaskWrapper;
+
+/**
+ * 拦截器
+ */
+public interface ILoaderInterceptor {
+
+  ILoader intercept(Chain chain);
+
+  interface Chain {
+
+    void updateRecord(TaskRecord record);
+
+    TaskRecord getRecord();
+
+    IEventListener getListener();
+
+    ITaskWrapper getWrapper();
+
+    ILoader proceed();
+  }
+}

PublicComponent/src/main/java/com/arialyy/aria/core/loader/LoaderChain.java

@@ -0,0 +1,75 @@
+/*
+ * 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.aria.core.loader;
+
+import com.arialyy.aria.core.TaskRecord;
+import com.arialyy.aria.core.listener.IEventListener;
+import com.arialyy.aria.core.wrapper.ITaskWrapper;
+import java.util.List;
+
+/**
+ * 责任链
+ */
+public final class LoaderChain implements ILoaderInterceptor.Chain {
+  private ITaskWrapper wrapper;
+  private IEventListener listener;
+  private TaskRecord taskRecord;
+  private int index;
+  private List<ILoaderInterceptor> interceptors;
+
+  public LoaderChain(List<ILoaderInterceptor> interceptors, ITaskWrapper wrapper,
+      IEventListener listener, TaskRecord taskRecord,
+      int index) {
+    this.interceptors = interceptors;
+    this.wrapper = wrapper;
+    this.listener = listener;
+    this.taskRecord = taskRecord;
+    this.index = index;
+  }
+
+  @Override public void updateRecord(TaskRecord record) {
+    this.taskRecord = record;
+  }
+
+  @Override public TaskRecord getRecord() {
+    return taskRecord;
+  }
+
+  @Override public IEventListener getListener() {
+    return listener;
+  }
+
+  @Override public ITaskWrapper getWrapper() {
+    return wrapper;
+  }
+
+  @Override public ILoader proceed() {
+    int index = this.index + 1;
+    if (index >= interceptors.size()) {
+      throw new AssertionError();
+    }
+
+    LoaderChain next = new LoaderChain(interceptors, wrapper, listener, taskRecord, index);
+    ILoaderInterceptor interceptor = interceptors.get(index);
+    ILoader loader = interceptor.intercept(next);
+
+    if (loader == null) {
+      throw new NullPointerException("Loader为空");
+    }
+
+    return loader;
+  }
+}

PublicComponent/src/main/java/com/arialyy/aria/core/loader/LoaderIntercept.java

@@ -0,0 +1,47 @@
+/*
+ * 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.aria.core.loader;
+
+public class LoaderIntercept implements ILoaderInterceptor, ILoader {
+
+
+
+  @Override public ILoader intercept(Chain chain) {
+
+
+    return this;
+  }
+
+  @Override public void start() {
+
+  }
+
+  @Override public void stop() {
+
+  }
+
+  @Override public void isBreak() {
+
+  }
+
+  @Override public String getKey() {
+    return null;
+  }
+
+  @Override public long getCurrentProgress() {
+    return 0;
+  }
+}

PublicComponent/src/main/java/com/arialyy/aria/core/loader/RecordInterceptor.java

@@ -0,0 +1,39 @@
+/*
+ * 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.aria.core.loader;
+
+import com.arialyy.aria.core.common.RecordHandler;
+import com.arialyy.aria.core.inf.IRecordHandlerAdapter;
+import com.arialyy.aria.core.wrapper.AbsTaskWrapper;
+
+/**
+ * 任务记录拦截器，用于处理任务记录
+ */
+public final class RecordInterceptor implements ILoaderInterceptor {
+  private IRecordHandlerAdapter adapter;
+
+  public RecordInterceptor(IRecordHandlerAdapter adapter) {
+    this.adapter = adapter;
+  }
+
+  @Override public ILoader intercept(Chain chain) {
+    RecordHandler recordHandler = new RecordHandler((AbsTaskWrapper) chain.getWrapper());
+    recordHandler.setAdapter(adapter);
+    chain.updateRecord(recordHandler.getRecord());
+
+    return chain.proceed();
+  }
+}