/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.lenya.cms.editors;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.lenya.cms.usecase.DocumentUsecase;
import org.apache.lenya.cms.usecase.UsecaseInvoker;
import org.apache.lenya.cms.usecase.UsecaseMessage;
import org.apache.lenya.util.Assert;
/**
* <p>
* This usecase saves the document from the request stream <em>before</em> the
* view is displayed using the {@link EditDocument} usecase. That's kind of a
* hack, since it violates the standard usecase principle, but it is very
* convenient because you can save and re-load the document without a redirect.
* </p>
*
* @version $Id: EditDocument.java 495324 2007-01-11 18:44:04Z andreas $
*/
public class SaveDocument extends DocumentUsecase {
protected static final String USECASE_NAME = "usecaseName";
protected void doCheckPreconditions() throws Exception {
super.doCheckPreconditions();
String usecase = getParameterAsString(USECASE_NAME);
Assert.notNull("usecase", usecase);
UsecaseInvoker invoker = null;
try {
invoker = (UsecaseInvoker) this.manager.lookup(UsecaseInvoker.ROLE);
Map params = new HashMap();
params.put(EditDocument.SOURCE_URI, getParameter(EditDocument.SOURCE_URI));
params.put(EditDocument.EVENT, getParameter(EditDocument.EVENT));
invoker.invoke(getSourceURL(), usecase, params);
if (invoker.getResult() != UsecaseInvoker.SUCCESS) {
List messages = invoker.getErrorMessages();
for (Iterator i = messages.iterator(); i.hasNext();) {
UsecaseMessage message = (UsecaseMessage) i.next();
addErrorMessage(message.getMessage(), message.getParameters());
}
}
} finally {
if (invoker != null) {
this.manager.release(invoker);
}
}
}
}