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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.mtp;
     18 
     19 /**
     20  * Java wrapper for MTP/PTP support as USB responder.
     21  * {@hide}
     22  */
     23 public class MtpServer implements Runnable {
     24 
     25     private long mNativeContext; // accessed by native methods
     26 
     27     static {
     28         System.loadLibrary("media_jni");
     29     }
     30 
     31     public MtpServer(MtpDatabase database, boolean usePtp) {
     32         native_setup(database, usePtp);
     33         database.setServer(this);
     34     }
     35 
     36     public void start() {
     37         Thread thread = new Thread(this, "MtpServer");
     38         thread.start();
     39     }
     40 
     41     @Override
     42     public void run() {
     43         native_run();
     44         native_cleanup();
     45     }
     46 
     47     public void sendObjectAdded(int handle) {
     48         native_send_object_added(handle);
     49     }
     50 
     51     public void sendObjectRemoved(int handle) {
     52         native_send_object_removed(handle);
     53     }
     54 
     55     public void sendDevicePropertyChanged(int property) {
     56         native_send_device_property_changed(property);
     57     }
     58 
     59     public void addStorage(MtpStorage storage) {
     60         native_add_storage(storage);
     61     }
     62 
     63     public void removeStorage(MtpStorage storage) {
     64         native_remove_storage(storage.getStorageId());
     65     }
     66 
     67     private native final void native_setup(MtpDatabase database, boolean usePtp);
     68     private native final void native_run();
     69     private native final void native_cleanup();
     70     private native final void native_send_object_added(int handle);
     71     private native final void native_send_object_removed(int handle);
     72     private native final void native_send_device_property_changed(int property);
     73     private native final void native_add_storage(MtpStorage storage);
     74     private native final void native_remove_storage(int storageId);
     75 }
     76