| /* |
| * Copyright (C) 2010 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; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| |
| /** |
| * This is an entity class in which necessary information required to transact |
| * between device and online DRM server is described. DRM Framework achieves |
| * server registration, license acquisition and any other server related transaction |
| * by passing an instance of this class to {@link DrmManagerClient#processDrmInfo(DrmInfo)}. |
| * |
| * Caller can retrieve the {@link DrmInfo} instance by using |
| * {@link DrmManagerClient#acquireDrmInfo(DrmInfoRequest)} |
| * by passing {@link DrmInfoRequest} instance. |
| * |
| */ |
| public class DrmInfo { |
| private byte[] mData; |
| private final String mMimeType; |
| private final int mInfoType; |
| // It would be used to add attributes specific to |
| // DRM scheme such as account id, path or multiple path's |
| private final HashMap<String, Object> mAttributes = new HashMap<String, Object>(); |
| |
| /** |
| * constructor to create DrmInfo object with given parameters |
| * |
| * @param infoType Type of information |
| * @param data Trigger data |
| * @param mimeType MIME type |
| */ |
| public DrmInfo(int infoType, byte[] data, String mimeType) { |
| mInfoType = infoType; |
| mMimeType = mimeType; |
| mData = data; |
| } |
| |
| /** |
| * constructor to create DrmInfo object with given parameters |
| * |
| * @param infoType Type of information |
| * @param path Trigger data |
| * @param mimeType MIME type |
| */ |
| public DrmInfo(int infoType, String path, String mimeType) { |
| mInfoType = infoType; |
| mMimeType = mimeType; |
| try { |
| mData = DrmUtils.readBytes(path); |
| } catch (IOException e) { |
| // As the given path is invalid, |
| // set mData = null, so that further processDrmInfo() |
| // call would fail with IllegalArgumentException because of mData = null |
| mData = null; |
| } |
| } |
| |
| /** |
| * Adds optional information as <key, value> pair to this object |
| * |
| * @param key Key to add |
| * @param value Value to add |
| * To put custom object into DrmInfo, custom object has to |
| * override toString() implementation. |
| */ |
| public void put(String key, Object value) { |
| mAttributes.put(key, value); |
| } |
| |
| /** |
| * Retrieves the value of given key, if not found returns null |
| * |
| * @param key Key whose value to be retrieved |
| * @return The value or null |
| */ |
| public Object get(String key) { |
| return mAttributes.get(key); |
| } |
| |
| /** |
| * Returns Iterator object to walk through the keys associated with this instance |
| * |
| * @return Iterator object |
| */ |
| public Iterator<String> keyIterator() { |
| return mAttributes.keySet().iterator(); |
| } |
| |
| /** |
| * Returns Iterator object to walk through the values associated with this instance |
| * |
| * @return Iterator object |
| */ |
| public Iterator<Object> iterator() { |
| return mAttributes.values().iterator(); |
| } |
| |
| /** |
| * Returns the trigger data associated with this object |
| * |
| * @return Trigger data |
| */ |
| public byte[] getData() { |
| return mData; |
| } |
| |
| /** |
| * Returns the mimetype associated with this object |
| * |
| * @return MIME type |
| */ |
| public String getMimeType() { |
| return mMimeType; |
| } |
| |
| /** |
| * Returns information type associated with this instance |
| * |
| * @return Information type |
| */ |
| public int getInfoType() { |
| return mInfoType; |
| } |
| |
| /** |
| * Returns whether this instance is valid or not |
| * |
| * @return |
| * true if valid |
| * false if invalid |
| */ |
| boolean isValid() { |
| return (null != mMimeType && !mMimeType.equals("") |
| && null != mData && mData.length > 0 && DrmInfoRequest.isValidType(mInfoType)); |
| } |
| } |
| |