org.efaps.update.SaxHandler Maven / Gradle / Ivy
/*
* Copyright 2003 - 2012 The eFaps Team
*
* 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.
*
* Revision: $Rev: 7483 $
* Last Changed: $Date: 2012-05-11 11:57:38 -0500 (Fri, 11 May 2012) $
* Last Changed By: $Author: [email protected] $
*/
package org.efaps.update;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Map;
import java.util.Stack;
import org.efaps.update.schema.access.AccessSetUpdate;
import org.efaps.update.schema.access.AccessTypeUpdate;
import org.efaps.update.schema.common.NumberGeneratorUpdate;
import org.efaps.update.schema.common.SystemConfigurationUpdate;
import org.efaps.update.schema.datamodel.DimensionUpdate;
import org.efaps.update.schema.datamodel.SQLTableUpdate;
import org.efaps.update.schema.datamodel.StatusGroupUpdate;
import org.efaps.update.schema.datamodel.TypeUpdate;
import org.efaps.update.schema.db.StoreUpdate;
import org.efaps.update.schema.dbproperty.DBPropertiesUpdate;
import org.efaps.update.schema.help.HelpMenuUpdate;
import org.efaps.update.schema.integration.WebDAVUpdate;
import org.efaps.update.schema.program.JasperImageUpdate;
import org.efaps.update.schema.program.JasperReportUpdate;
import org.efaps.update.schema.program.WikiImageUpdate;
import org.efaps.update.schema.ui.CommandUpdate;
import org.efaps.update.schema.ui.FormUpdate;
import org.efaps.update.schema.ui.ImageUpdate;
import org.efaps.update.schema.ui.MenuUpdate;
import org.efaps.update.schema.ui.SearchUpdate;
import org.efaps.update.schema.ui.TableUpdate;
import org.efaps.update.schema.user.CompanyUpdate;
import org.efaps.update.schema.user.JAASSystemUpdate;
import org.efaps.update.schema.user.RoleUpdate;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
/**
* @author The eFaps Team
* @version $Id: SaxHandler.java 7483 2012-05-11 16:57:38Z [email protected] $
*/
public class SaxHandler extends DefaultHandler
{
/**
* Tags used in this Handler.
*/
private final Stack tag = new Stack();
/**
* Map of attributes for this Handler.
*/
private final Map attributes = new HashMap();
/**
* Has this handler been called.
*/
private boolean called = false;
/**
* Update.
*/
private IUpdate update = null;
/**
* StringtbUIlder used to hold the content.
*/
private StringBuilder content = null;
/**
* Url of the file that is parsed.
*/
private URL url = null;
/**
* @param _url Url of the file to be parsed
* @return AbstractUpdate for the file
* @throws SAXException on parse exception
* @throws IOException on file access error
*/
public IUpdate parse(final URL _url) throws SAXException, IOException
{
this.url = _url;
// einen XML Reader erzeugen
final XMLReader reader = XMLReaderFactory.createXMLReader();
// den eigenen Sax Content Handler registrieren
reader.setContentHandler(this);
// unsere Beispiel XML Datei parsen
final URLConnection connection = this.url.openConnection();
connection.setUseCaches(false);
final InputStream stream = connection.getInputStream();
reader.parse(new InputSource(stream));
stream.close();
return this.update;
}
/**
* Getter method for instance variable {@link #update}.
*
* @return value of instance variable {@link #update}
*/
public IUpdate getUpdate()
{
return this.update;
}
/**
* @see org.xml.sax.helpers.DefaultHandler#characters(char[], int, int)
* @param _ch char
* @param _start start index
* @param _length length
* @throws SAXException on error
*/
@Override
public void characters(final char[] _ch, final int _start, final int _length) throws SAXException
{
if (_length > 0) {
final String contentTmp = new String(_ch, _start, _length);
if (!this.called && !this.tag.empty()) {
if (this.content == null) {
this.content = new StringBuilder();
}
this.content.append(contentTmp);
}
}
}
/**
* @see org.xml.sax.helpers.DefaultHandler#endElement(java.lang.String, java.lang.String, java.lang.String)
* @param _uri uri
* @param _localName local name
* @param _qName qualified name
* @throws SAXException on error
*/
@Override
public void endElement(final String _uri, final String _localName, final String _qName) throws SAXException
{
if (!this.called) {
this.update.readXML(this.tag, this.attributes, (this.content != null)
? this.content.toString().trim()
: null);
this.called = true;
this.content = null;
}
if (!this.tag.isEmpty()) {
this.tag.pop();
}
}
/**
* @see org.xml.sax.helpers.DefaultHandler#startElement(java.lang.String, java.lang.String, java.lang.String,
* org.xml.sax.Attributes)
* @param _uri uri
* @param _localName local name
* @param _qName qualified Name
* @param _attributes Attributes
* @throws SAXException on error
*/
@Override
public void startElement(final String _uri, final String _localName, final String _qName,
final Attributes _attributes)
throws SAXException
{
if (this.update != null) {
if (!this.called && !this.tag.isEmpty()) {
this.update.readXML(this.tag, this.attributes, (this.content != null)
? this.content.toString().trim()
: null);
}
this.called = false;
this.content = null;
this.tag.push(_qName);
this.attributes.clear();
for (int i = 0; i < _attributes.getLength(); i++) {
this.attributes.put(_attributes.getQName(i), _attributes.getValue(i));
}
} else if ("access-set".equals(_qName)) {
this.update = new AccessSetUpdate(this.url);
} else if ("access-type".equals(_qName)) {
this.update = new AccessTypeUpdate(this.url);
} else if ("common-systemconfiguration".equals(_qName)) {
this.update = new SystemConfigurationUpdate(this.url);
} else if ("datamodel-sqltable".equals(_qName)) {
this.update = new SQLTableUpdate(this.url);
} else if ("datamodel-type".equals(_qName)) {
this.update = new TypeUpdate(this.url);
} else if ("datamodel-dimension".equals(_qName)) {
this.update = new DimensionUpdate(this.url);
} else if ("datamodel-statusgroup".equals(_qName)) {
this.update = new StatusGroupUpdate(this.url);
} else if ("db-store".equals(_qName)) {
this.update = new StoreUpdate(this.url);
} else if ("integration-webdav".equals(_qName)) {
this.update = new WebDAVUpdate(this.url);
} else if ("jasperReport".equals(_qName)) {
this.update = new JasperReportUpdate(this.url);
} else if ("jasper-image".equals(_qName)) {
this.update = new JasperImageUpdate(this.url);
} else if ("numbergenerator".equals(_qName)) {
this.update = new NumberGeneratorUpdate(this.url);
} else if ("ui-command".equals(_qName)) {
this.update = new CommandUpdate(this.url);
} else if ("ui-form".equals(_qName)) {
this.update = new FormUpdate(this.url);
} else if ("ui-image".equals(_qName)) {
this.update = new ImageUpdate(this.url);
} else if ("ui-menu".equals(_qName)) {
this.update = new MenuUpdate(this.url);
} else if ("ui-search".equals(_qName)) {
this.update = new SearchUpdate(this.url);
} else if ("ui-table".equals(_qName)) {
this.update = new TableUpdate(this.url);
} else if ("user-company".equals(_qName)) {
this.update = new CompanyUpdate(this.url);
} else if ("user-jaassystem".equals(_qName)) {
this.update = new JAASSystemUpdate(this.url);
} else if ("user-role".equals(_qName)) {
this.update = new RoleUpdate(this.url);
} else if ("import".equals(_qName)) {
this.update = new ImportUpdate();
} else if ("dbproperties".equals(_qName)) {
this.update = new DBPropertiesUpdate(this.url);
} else if ("help-menu".equals(_qName)) {
this.update = new HelpMenuUpdate(this.url);
} else if ("wiki-image".equals(_qName)) {
this.update = new WikiImageUpdate(this.url);
} else {
throw new SAXException("Unknown XML Tag " + _qName);
}
}
}
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