CarrierContentRestriction.java revision 9242286c35743422051d439d7460cd0a1426899c 
1/*
2 * Copyright (C) 2008 Esmertec AG.
3 * Copyright (C) 2008 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17package com.android.mms.model;
18
19import java.util.ArrayList;
20
21import android.content.ContentResolver;
22
23import com.google.android.mms.ContentType;
24import com.android.mms.ContentRestrictionException;
25import com.android.mms.ExceedMessageSizeException;
26import com.android.mms.MmsConfig;
27import com.android.mms.ResolutionException;
28import com.android.mms.UnsupportContentTypeException;
29
30public class CarrierContentRestriction implements ContentRestriction {
31    private static final ArrayList<String> sSupportedImageTypes;
32    private static final ArrayList<String> sSupportedAudioTypes;
33    private static final ArrayList<String> sSupportedVideoTypes;
34
35    static {
36        sSupportedImageTypes = ContentType.getImageTypes();
37        sSupportedAudioTypes = ContentType.getAudioTypes();
38        sSupportedVideoTypes = ContentType.getVideoTypes();
39    }
40
41    public CarrierContentRestriction() {
42    }
43
44    public void checkMessageSize(int messageSize, int increaseSize, ContentResolver resolver)
45            throws ContentRestrictionException {
46        if ( (messageSize < 0) || (increaseSize < 0) ) {
47            throw new ContentRestrictionException("Negative message size"
48                    + " or increase size");
49        }
50        int newSize = messageSize + increaseSize;
51
52        if ( (newSize < 0) || (newSize > MmsConfig.getMaxMessageSize()) ) {
53            throw new ExceedMessageSizeException("Exceed message size limitation");
54        }
55    }
56
57    public void checkResolution(int width, int height) throws ContentRestrictionException {
58        if ( (width > MmsConfig.getMaxImageWidth()) || (height > MmsConfig.getMaxImageHeight()) ) {
59            throw new ResolutionException("content resolution exceeds restriction.");
60        }
61    }
62
63    public void checkImageContentType(String contentType)
64            throws ContentRestrictionException {
65        if (null == contentType) {
66            throw new ContentRestrictionException("Null content type to be check");
67        }
68
69        if (!sSupportedImageTypes.contains(contentType)) {
70            throw new UnsupportContentTypeException("Unsupported image content type : "
71                    + contentType);
72        }
73    }
74
75    public void checkAudioContentType(String contentType)
76            throws ContentRestrictionException {
77        if (null == contentType) {
78            throw new ContentRestrictionException("Null content type to be check");
79        }
80
81        if (!sSupportedAudioTypes.contains(contentType)) {
82            throw new UnsupportContentTypeException("Unsupported audio content type : "
83                    + contentType);
84        }
85    }
86
87    public void checkVideoContentType(String contentType)
88            throws ContentRestrictionException {
89        if (null == contentType) {
90            throw new ContentRestrictionException("Null content type to be check");
91        }
92
93        if (!sSupportedVideoTypes.contains(contentType)) {
94            throw new UnsupportContentTypeException("Unsupported video content type : "
95                    + contentType);
96        }
97    }
98}
99