/*
* $Header: /home/cvs/jakarta-slide/src/webdav/server/org/apache/slide/webdav/method/SubscribeMethod.java,v 1.11 2004/08/05 14:43:29 dflorey Exp $
* $Revision: 1.11 $
* $Date: 2004/08/05 14:43:29 $
*
* ====================================================================
*
* Copyright 2004 The Apache Software Foundation
*
* 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 org.apache.slide.webdav.method;
import org.apache.slide.common.NamespaceAccessToken;
import org.apache.slide.event.EventDispatcher;
import org.apache.slide.webdav.WebdavException;
import org.apache.slide.webdav.WebdavServletConfig;
import org.apache.slide.webdav.event.NotificationTrigger;
import org.apache.slide.webdav.event.Subscriber;
import org.apache.slide.webdav.event.WebdavEvent;
import org.apache.slide.webdav.util.NotificationConstants;
import org.apache.slide.webdav.util.WebdavStatus;
/**
* Subscribe Method.
*
*/
public class SubscribeMethod extends AbstractWebdavMethod implements NotificationConstants {
protected static final String LOG_CHANNEL = SubscribeMethod.class.getName();
private final static int DEFAULT_SUBSCRIPTION_LIFETIME = 3600;
/**
* Constructor.
*
* @param token the token for accessing the namespace
* @param config configuration of the WebDAV servlet
*/
public SubscribeMethod(NamespaceAccessToken token,
WebdavServletConfig config) {
super(token, config);
}
protected void parseRequest() throws WebdavException {
}
protected void executeRequest() throws WebdavException {
try {
if ( WebdavEvent.SUBSCRIBE.isEnabled() ) EventDispatcher.getInstance().fireVetoableEvent(WebdavEvent.SUBSCRIBE, new WebdavEvent(this));
String contentType = requestHeaders.getContentType();
String callback = requestHeaders.getCallback();
String notificationType = requestHeaders.getNotificationType();
int notificationDelay = requestHeaders.getNotificationDelay(0);
int subscriptionLifetime = requestHeaders.getSubscriptionLifetime(DEFAULT_SUBSCRIPTION_LIFETIME);
int depth = requestHeaders.getDepth(INFINITY);
int []subscriptionIDs = requestHeaders.getSubscriptionId();
if ( subscriptionIDs.length > 0 ) {
// renew subscribers
for ( int i = 0; i < subscriptionIDs.length; i++ ) {
Subscriber subscriber = NotificationTrigger.getInstance().getSubscriber(subscriptionIDs[i]);
if ( subscriber != null ) {
NotificationTrigger.getInstance().refreshSubscriber(subscriber, true);
}
}
} else {
if (notificationType == null) {
sendError(WebdavStatus.SC_BAD_REQUEST, "Notification-Type header missing.");
return;
} else {
// FIXME check for valid notification types
}
Subscriber subscriber = new Subscriber(requestUri, callback, notificationType, notificationDelay,
subscriptionLifetime, depth);
int subscriptionID = NotificationTrigger.getInstance().addSubscriber(subscriber);
resp.setHeader(H_CALL_BACK, callback);
resp.setHeader(H_NOTIFICATION_TYPE, notificationType);
resp.setHeader(H_SUBSCRIPTION_LIFETIME, String.valueOf(subscriptionLifetime));
resp.setHeader(H_SUBSCRIPTION_ID, String.valueOf(subscriptionID));
resp.setHeader(H_CONTENT_LOCATION,
getSlideContextPath() + requestUri);
resp.setStatus(WebdavStatus.SC_OK);
}
} catch (Exception e) {
int statusCode = getErrorCode( (Exception)e );
sendError( statusCode, e );
throw new WebdavException( statusCode );
}
}
}