MtpServer.java revision 0cd0136d440cf6ad9d5fab430269116786e671ec 
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
17package android.mtp;
18
19import android.util.Log;
20
21/**
22 * Java wrapper for MTP/PTP support as USB responder.
23 * {@hide}
24 */
25public class MtpServer {
26
27    private static final String TAG = "MtpServer";
28
29    static {
30        System.loadLibrary("media_jni");
31    }
32
33    public MtpServer(MtpDatabase database, String storagePath, long reserveSpace) {
34        native_setup(database, storagePath, reserveSpace);
35    }
36
37    @Override
38    protected void finalize() throws Throwable {
39        try {
40            native_finalize();
41        } finally {
42            super.finalize();
43        }
44    }
45
46    public void start() {
47        native_start();
48    }
49
50    public void stop() {
51        native_stop();
52    }
53
54    public void sendObjectAdded(int handle) {
55        native_send_object_added(handle);
56    }
57
58    public void sendObjectRemoved(int handle) {
59        native_send_object_removed(handle);
60    }
61
62    public void setPtpMode(boolean usePtp) {
63        native_set_ptp_mode(usePtp);
64    }
65
66    // used by the JNI code
67    private int mNativeContext;
68
69    private native final void native_setup(MtpDatabase database, String storagePath,
70            long reserveSpace);
71    private native final void native_finalize();
72    private native final void native_start();
73    private native final void native_stop();
74    private native final void native_send_object_added(int handle);
75    private native final void native_send_object_removed(int handle);
76    private native final void native_set_ptp_mode(boolean usePtp);
77}
78