DeploymentUtils.java
/*
* Copyright (C) 2003-2013 eXo Platform SAS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.exoplatform.services.deployment;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.StartElement;
import javax.xml.stream.events.XMLEvent;
import org.exoplatform.services.jcr.impl.Constants;
import org.exoplatform.services.jcr.impl.util.ISO9075;
import org.exoplatform.services.jcr.impl.util.NodeTypeRecognizer;
/**
* Created by The eXo Platform SAS
* Author : eXoPlatform
* exo@exoplatform.com
* Oct 7, 2013
*/
public class DeploymentUtils {
/**
* This method get node's name from an InputStream.
* @param stream the input steam of node that imported
* @return a node's name
* @throws XMLStreamException
* @throws IOException
*/
public static String getNodeName(InputStream stream) throws XMLStreamException, IOException {
String nodeToImportName = null;
XMLInputFactory factory = XMLInputFactory.newInstance();
XMLEventReader reader = null;
try {
reader = factory.createXMLEventReader(stream);
XMLEvent event = null;
do {
event = reader.nextEvent();
} while (reader.hasNext() && (event.getEventType() != XMLStreamConstants.START_ELEMENT));
if (event.getEventType() != XMLStreamConstants.START_ELEMENT) {
throw new IllegalStateException("Content isn't lisible");
}
StartElement element = event.asStartElement();
QName name = element.getName();
switch (NodeTypeRecognizer.recognize(name.getNamespaceURI(), name.getPrefix() + ":" + name.getLocalPart())) {
case DOCVIEW:
if (name.getPrefix() == null || name.getPrefix().isEmpty()) {
nodeToImportName = ISO9075.decode(name.getLocalPart());
} else {
nodeToImportName = ISO9075.decode(name.getPrefix() + ":" + name.getLocalPart());
}
break;
case SYSVIEW:
@SuppressWarnings("rawtypes")
Iterator attributes = element.getAttributes();
while (attributes.hasNext() && nodeToImportName == null) {
Attribute attribute = (Attribute) attributes.next();
if ((attribute.getName().getNamespaceURI() + ":" + attribute.getName().getLocalPart()).equals(Constants.SV_NAME_NAME
.getNamespace() + ":" + Constants.SV_NAME_NAME.getName())) {
nodeToImportName = attribute.getValue();
break;
}
}
break;
default:
throw new IllegalStateException("There was an error during ascertaining the " + "type of document. First element ");
}
} finally {
if (reader != null) {
reader.close();
stream.close();
}
}
return nodeToImportName;
}
}