/*
* Copyright (C) 2012 Tirasa
*
* 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.tirasa.hct.editor.data;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.RepositoryException;
import javax.jcr.query.Query;
import org.apache.wicket.Session;
import org.apache.wicket.extensions.markup.html.repeater.util.SortableDataProvider;
import org.apache.wicket.model.IModel;
import org.hippoecm.frontend.session.UserSession;
import net.tirasa.hct.editor.Properties;
import net.tirasa.hct.editor.beans.CollectionBean;
import net.tirasa.hct.editor.beans.ComponentType;
import net.tirasa.hct.editor.beans.DocumentBean;
import net.tirasa.hct.editor.beans.ResourceBean;
import net.tirasa.hct.editor.beans.SummaryBean;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ComponentDataProvider extends SortableDataProvider {
private static final long serialVersionUID = 1856468028453249354L;
private static final Logger LOG =
LoggerFactory.getLogger(ComponentDataProvider.class);
private static transient List<ComponentType> componentList =
new ArrayList<ComponentType>();
private static String sessionId = "none";
private static String siteName;
/**
*
*/
public ComponentDataProvider(final String siteName) {
this.siteName = siteName;
}
/**
*
* @param first
* @param count
* @return
*/
@Override
public Iterator<ComponentType> iterator(final int first, final int count) {
final List<ComponentType> components = new ArrayList<ComponentType>();
for (int i = first; i < (count + first); i++) {
components.add(componentList.get(i));
}
return components.iterator();
}
/**
*
* @param object
* @return
*/
@Override
public IModel model(final Object object) {
return new DetachableComponent((ComponentType) object);
}
/**
*
* @return
*/
@Override
public int size() {
populateComponentList();
return componentList.size();
}
/**
* Populate list, refresh when a new session id is found or when dirty
*/
private static void populateComponentList() {
synchronized (ComponentDataProvider.class) {
componentList.clear();
NodeIterator iter;
final StringBuilder query =
new StringBuilder(Properties.HCT_ROOT);
query.append(Properties.SLASH);
query.append(siteName);
query.append(Properties.SLASH);
query.append(Properties.HCT_COMPONENTS);
query.append(Properties.SLASH);
query.append(Properties.STAR);
try {
@SuppressWarnings("deprecation")
final Query listQuery = ((UserSession) Session.get()).getQueryManager().
createQuery(query.toString(), Query.XPATH);
iter = listQuery.execute().getNodes();
while (iter.hasNext()) {
final Node node = iter.nextNode();
if (node != null) {
try {
final String type = node.getProperty(Properties.PROP_COMPTYPE).getString();
if (type.equals("Document")) {
componentList.add(new DocumentBean(node));
} else if (type.equals("Collection")) {
componentList.add(new CollectionBean(node));
} else if (type.equals("Summary")) {
componentList.add(new SummaryBean(node));
} else {
componentList.add(new ResourceBean(node));
}
} catch (RepositoryException e) {
LOG.warn("Unable to instantiate new component.", e);
}
}
}
} catch (RepositoryException e) {
LOG.error("Error while trying to query component nodes.", e);
}
}
}
public final List<String> getComponentList() {
final List<String> list = new ArrayList<String>();
final ListIterator componentIterator = componentList.listIterator();
while (componentIterator.hasNext()) {
list.add(((ComponentType) componentIterator.next()).getComponentName());
}
return list;
}
}