blob: bcccb6aee2740e30c835a90485e28e7c302be7ec (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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 android.drm.mobile1;
/**
* This class provides interfaces to access the DRM rights.
*/
public class DrmRights {
/**
* The DRM permission of play.
*/
public static final int DRM_PERMISSION_PLAY = 1;
/**
* The DRM permission of display.
*/
public static final int DRM_PERMISSION_DISPLAY = 2;
/**
* The DRM permission of execute.
*/
public static final int DRM_PERMISSION_EXECUTE = 3;
/**
* The DRM permission of print.
*/
public static final int DRM_PERMISSION_PRINT = 4;
/**
* Successful operation.
*/
private static final int JNI_DRM_SUCCESS = 0;
/**
* General failure.
*/
private static final int JNI_DRM_FAILURE = -1;
/**
* The uid of this rights object.
*/
private String roId = "";
/**
* Construct the DrmRights.
*/
public DrmRights() {
}
/**
* Get the constraint of the given permission on this rights object.
*
* @param permission the given permission.
*
* @return a DrmConstraint instance.
*/
public DrmConstraintInfo getConstraint(int permission) {
DrmConstraintInfo c = new DrmConstraintInfo();
/* call native method to get latest constraint information */
int res = nativeGetConstraintInfo(permission, c);
if (JNI_DRM_FAILURE == res)
return null;
return c;
}
/**
* Consume the rights of the given permission.
*
* @param permission the given permission.
*
* @return true if consume success.
* false if consume failure.
*/
public boolean consumeRights(int permission) {
/* call native method to consume and update rights */
int res = nativeConsumeRights(permission);
if (JNI_DRM_FAILURE == res)
return false;
return true;
}
/**
* native method: get the constraint information of the given permission.
*
* @param permission the given permission.
* @param constraint the instance of constraint.
*
* @return #JNI_DRM_SUCCESS if succeed.
* #JNI_DRM_FAILURE if fail.
*/
private native int nativeGetConstraintInfo(int permission, DrmConstraintInfo constraint);
/**
* native method: consume the rights of the given permission.
*
* @param permission the given permission.
*
* @return #JNI_DRM_SUCCESS if succeed.
* #JNI_DRM_FAILURE if fail.
*/
private native int nativeConsumeRights(int permission);
/**
* Load the shared library to link the native methods.
*/
static {
try {
System.loadLibrary("drm1_jni");
}
catch (UnsatisfiedLinkError ule) {
System.err.println("WARNING: Could not load libdrm1_jni.so");
}
}
}
|
