/*
* #!
* Ontopia Webed
* #-
* Copyright (C) 2001 - 2013 The Ontopia 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 net.ontopia.topicmaps.webed.impl.actions.occurrence;
import java.net.MalformedURLException;
import java.util.Collection;
import java.util.Iterator;
import net.ontopia.infoset.impl.basic.URILocator;
import net.ontopia.topicmaps.core.OccurrenceIF;
import net.ontopia.topicmaps.core.TopicIF;
import net.ontopia.topicmaps.core.TopicMapBuilderIF;
import net.ontopia.topicmaps.webed.core.ActionIF;
import net.ontopia.topicmaps.webed.core.ActionParametersIF;
import net.ontopia.topicmaps.webed.core.ActionResponseIF;
import net.ontopia.topicmaps.webed.core.ActionRuntimeException;
import net.ontopia.topicmaps.webed.impl.basic.Constants;
import net.ontopia.topicmaps.webed.impl.utils.ActionSignature;
/**
* PUBLIC: Action for adding an external occurrence to a topic. The
* occurrence type and scope may optionally be specified.
*/
public class AddExtOccurrence implements ActionIF {
public void perform(ActionParametersIF params, ActionResponseIF response) {
//test params
ActionSignature paramsType = ActionSignature.getSignature("t t t?&");
paramsType.validateArguments(params, this);
TopicIF topic = (TopicIF) params.get(0);
TopicIF occtype = (TopicIF) params.get(1);
Collection themes = params.getCollection(2);
String value = params.getStringValue().trim();
TopicMapBuilderIF builder = topic.getTopicMap().getBuilder();
// do not create occurrence with empty string value
if (value == null || value.equals(""))
return;
if (value.equals(Constants.RPV_DEFAULT))
value = Constants.DUMMY_LOCATOR;
// create new (external) occurrence for topic
URILocator locator = null;
try {
locator = new URILocator(value);
} catch (MalformedURLException e) {
throw new ActionRuntimeException("Malformed URL for occurrence: '" + value + "'", false);
}
OccurrenceIF occurrence = builder.makeOccurrence(topic, occtype, locator);
// set scope, if provided
if (themes != null) {
Iterator it = themes.iterator();
while (it.hasNext())
occurrence.addTheme((TopicIF) it.next());
}
}
}