drm/java/android/drm/DrmErrorEvent.java

/*
 * 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.util.HashMap;

/**
 * An entity class that is passed to the
 * {@link DrmManagerClient.OnErrorListener#onError onError()} callback.
 *
 */
public class DrmErrorEvent extends DrmEvent {

    // Please add newly defined type constants to the end of the list,
    // and modify checkTypeValidity() accordingly.

    /**
     * Something went wrong installing the rights.
     */
    public static final int TYPE_RIGHTS_NOT_INSTALLED = 2001;
    /**
     * The server rejected the renewal of rights.
     */
    public static final int TYPE_RIGHTS_RENEWAL_NOT_ALLOWED = 2002;
    /**
     * Response from the server cannot be handled by the DRM plug-in (agent).
     */
    public static final int TYPE_NOT_SUPPORTED = 2003;
    /**
     * Memory allocation failed during renewal. Can in the future perhaps be used to trigger 
     * garbage collector.
     */
    public static final int TYPE_OUT_OF_MEMORY = 2004;
    /**
     * An Internet connection is not available and no attempt can be made to renew rights.
     */
    public static final int TYPE_NO_INTERNET_CONNECTION = 2005;
    /**
     * Failed to process {@link DrmInfo}. This error event is sent when a
     * {@link DrmManagerClient#processDrmInfo processDrmInfo()} call fails.
     */
    public static final int TYPE_PROCESS_DRM_INFO_FAILED = 2006;
    /**
     * Failed to remove all the rights objects associated with all DRM schemes.
     */
    public static final int TYPE_REMOVE_ALL_RIGHTS_FAILED = 2007;
    /**
     * Failed to acquire {@link DrmInfo}. This error event is sent when an
     * {@link DrmManagerClient#acquireDrmInfo acquireDrmInfo()} call fails.
     */
    public static final int TYPE_ACQUIRE_DRM_INFO_FAILED = 2008;

    // Add more type constants here...

    // FIXME:
    // We may want to add a user-defined type constant, such as
    // TYPE_VENDOR_SPECIFIC_FAILED, to take care vendor specific use
    // cases.


    /**
     * Creates a <code>DrmErrorEvent</code> object with the specified parameters.
     *
     * @param uniqueId Unique session identifier.
     * @param type Type of the event. Must be any of the event types defined above.
     * @param message Message description. It can be null.
     */
    public DrmErrorEvent(int uniqueId, int type, String message) {
        super(uniqueId, type, message);
        checkTypeValidity(type);
    }

    /**
     * Creates a <code>DrmErrorEvent</code> object with the specified parameters.
     *
     * @param uniqueId Unique session identifier.
     * @param type Type of the event. Must be any of the event types defined above.
     * @param message Message description.
     * @param attributes Attributes for extensible information. Could be any
     * information provided by the plug-in. It can be null.
     */
    public DrmErrorEvent(int uniqueId, int type, String message,
                            HashMap<String, Object> attributes) {
        super(uniqueId, type, message, attributes);
        checkTypeValidity(type);
    }

    private void checkTypeValidity(int type) {
        if (type < TYPE_RIGHTS_NOT_INSTALLED ||
            type > TYPE_ACQUIRE_DRM_INFO_FAILED) {
            final String msg = "Unsupported type: " + type;
            throw new IllegalArgumentException(msg);
        }
    }
}