CarrierContentRestriction.java revision 8eed706474910ccb978acda03e85d3261037da6e 
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 com.google.android.mms.ContentType;
22import com.android.mms.ContentRestrictionException;
23import com.android.mms.ExceedMessageSizeException;
24import com.android.mms.ResolutionException;
25import com.android.mms.UnsupportContentTypeException;
26
27public class CarrierContentRestriction implements ContentRestriction {
28    public static final int IMAGE_WIDTH_LIMIT  = 1600;
29    public static final int IMAGE_HEIGHT_LIMIT = 1200;
30    public static final int MESSAGE_SIZE_LIMIT = 300 * 1024;
31
32    private static final ArrayList<String> sSupportedImageTypes;
33    private static final ArrayList<String> sSupportedAudioTypes;
34    private static final ArrayList<String> sSupportedVideoTypes;
35
36    static {
37        sSupportedImageTypes = ContentType.getImageTypes();
38        sSupportedAudioTypes = ContentType.getAudioTypes();
39        sSupportedVideoTypes = ContentType.getVideoTypes();
40    }
41
42    public CarrierContentRestriction() {
43    }
44
45    public void checkMessageSize(int messageSize, int increaseSize)
46            throws ContentRestrictionException {
47        if ( (messageSize < 0) || (increaseSize < 0) ) {
48            throw new ContentRestrictionException("Negative message size"
49                    + " or increase size");
50        }
51
52        int newSize = messageSize + increaseSize;
53        if ( (newSize < 0) || (newSize > MESSAGE_SIZE_LIMIT) ) {
54            throw new ExceedMessageSizeException("Exceed message size limitation");
55        }
56    }
57
58    public void checkResolution(int width, int height) throws ContentRestrictionException {
59        if ( (width > IMAGE_WIDTH_LIMIT) || (height > IMAGE_HEIGHT_LIMIT) ) {
60            throw new ResolutionException("content resolution exceeds restriction.");
61        }
62    }
63
64    public void checkImageContentType(String contentType)
65            throws ContentRestrictionException {
66        if (null == contentType) {
67            throw new ContentRestrictionException("Null content type to be check");
68        }
69
70        if (!sSupportedImageTypes.contains(contentType)) {
71            throw new UnsupportContentTypeException("Unsupported image content type : "
72                    + contentType);
73        }
74    }
75
76    public void checkAudioContentType(String contentType)
77            throws ContentRestrictionException {
78        if (null == contentType) {
79            throw new ContentRestrictionException("Null content type to be check");
80        }
81
82        if (!sSupportedAudioTypes.contains(contentType)) {
83            throw new UnsupportContentTypeException("Unsupported audio content type : "
84                    + contentType);
85        }
86    }
87
88    public void checkVideoContentType(String contentType)
89            throws ContentRestrictionException {
90        if (null == contentType) {
91            throw new ContentRestrictionException("Null content type to be check");
92        }
93
94        if (!sSupportedVideoTypes.contains(contentType)) {
95            throw new UnsupportContentTypeException("Unsupported video content type : "
96                    + contentType);
97        }
98    }
99}
100