/*
* ====================================================================
* JAFFA - Java Application Framework For All
*
* Copyright (C) 2002 JAFFA Development Group
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Redistribution and use of this software and associated documentation ("Software"),
* with or without modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain copyright statements and notices.
* Redistributions must also contain a copy of this document.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name "JAFFA" must not be used to endorse or promote products derived from
* this Software without prior written permission. For written permission,
* please contact mail to: jaffagroup@yahoo.com.
* 4. Products derived from this Software may not be called "JAFFA" nor may "JAFFA"
* appear in their names without prior written permission.
* 5. Due credit should be given to the JAFFA Project (http://jaffa.sourceforge.net).
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*/
package org.jaffa.persistence.engines.jdbcengine.configservice;
import org.apache.log4j.Logger;
import java.util.*;
import org.xml.sax.Attributes;
import org.xml.sax.helpers.DefaultHandler;
/** This is the handler for the mapping files. It parses the file and creates an appropriate ClassMetaData object.
*/
public class MappingParser extends DefaultHandler {
private static final Logger log = Logger.getLogger(MappingParser.class);
private static final String CLASS = "class";
private static final String NAME = "name";
private static final String FIELD = "field";
private static final String USE_MEMBER = "use-member";
private static final String PRIMARY_KEY = "primary-key";
private static final String AUTOGEN_KEY = "autogen-key";
private static final String TRUE = "true";
private static final String TYPE = "type";
private static final String MAP_TO = "map-to";
private static final String TABLE = "table";
private static final String SQL = "sql";
private ClassMetaData m_meta;
private String m_fieldName;
/** Receive notification of the start of an element.
* @param uri The uri.
* @param sName The local name (without prefix), or the empty string if Namespace processing is not being performed.
* @param qName The qualified name (with prefix), or the empty string if qualified names are not available.
* @param atts The specified or defaulted attributes
*/
public void startElement(String uri, String sName, String qName, Attributes atts) {
if(sName.equals(CLASS)) {
m_meta = new ClassMetaData(atts.getValue(NAME));
} else if(sName.equals(FIELD)) {
m_fieldName = atts.getValue(NAME);
if ((atts.getValue(PRIMARY_KEY)) != null) {
if( (atts.getValue(PRIMARY_KEY)).equals(TRUE))
m_meta.addKeyField(m_fieldName, atts.getValue(TYPE), TRUE.equals(atts.getValue(AUTOGEN_KEY)));
else
m_meta.addAttribute(m_fieldName, atts.getValue(TYPE));
} else {
m_meta.addAttribute(m_fieldName, atts.getValue(TYPE));
}
String memberName = atts.getValue(USE_MEMBER);
if (memberName != null)
m_meta.addMember(m_fieldName, memberName);
} else if(sName.equals(MAP_TO)) {
m_meta.setTable(atts.getValue(TABLE));
} else if(sName.equals(SQL)) {
m_meta.addSqlName(m_fieldName, atts.getValue(NAME));
m_meta.addSqlType(m_fieldName, atts.getValue(TYPE).toUpperCase());
}
}
/** Returns a ClassMetaData object corresponding to a mapping file.
* @return a ClassMetaData object corresponding to a mapping file.
*/
public ClassMetaData getMetaData() {
return m_meta;
}
}
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