/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.parser.ext.readhandlers;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.PropertyAttributes;
import org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.base.ClassFactory;
import org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.base.ObjectDescription;
import org.pentaho.reporting.libraries.xmlns.parser.ParseException;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public class CompoundObjectReadHandler extends BasicObjectReadHandler
{
private HashMap basicObjects;
private HashMap compoundObjects;
public CompoundObjectReadHandler(final ObjectDescription objectDescription)
{
super(objectDescription);
basicObjects = new HashMap();
compoundObjects = new HashMap();
}
protected HashMap getBasicObjects()
{
return basicObjects;
}
protected HashMap getCompoundObjects()
{
return compoundObjects;
}
/**
* Done parsing.
*
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected void doneParsing()
throws SAXException
{
final ObjectDescription objectDescription = getObjectDescription();
final Iterator basicObjectsEntries = basicObjects.entrySet().iterator();
while (basicObjectsEntries.hasNext())
{
final Map.Entry entry = (Map.Entry) basicObjectsEntries.next();
final String name = (String) entry.getKey();
final BasicObjectReadHandler readHandler = (BasicObjectReadHandler) entry.getValue();
objectDescription.setParameter(name, readHandler.getObject());
}
final Iterator compoundObjectsEntries = compoundObjects.entrySet().iterator();
while (compoundObjectsEntries.hasNext())
{
final Map.Entry entry = (Map.Entry) compoundObjectsEntries.next();
final String name = (String) entry.getKey();
final CompoundObjectReadHandler readHandler = (CompoundObjectReadHandler) entry.getValue();
objectDescription.setParameter(name, readHandler.getObject());
}
}
/**
* Returns the handler for a child element.
*
* @param tagName the tag name.
* @param atts the attributes.
* @return the handler or null, if the tagname is invalid.
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected XmlReadHandler getHandlerForChild(final String uri,
final String tagName,
final PropertyAttributes atts)
throws SAXException
{
if (isSameNamespace(uri) == false)
{
return null;
}
if ("basic-object".equals(tagName))
{
return handleBasicObject(atts);
}
else if ("compound-object".equals(tagName))
{
return handleCompoundObject(atts);
}
return null;
}
protected XmlReadHandler handleBasicObject(final Attributes atts)
throws ParseException
{
final String name = atts.getValue(getUri(), "name");
if (name == null)
{
throw new ParseException
("Required attribute 'name' is missing.", getLocator());
}
final ClassFactory fact = getClassFactory();
final ObjectDescription currentOd = getObjectDescription();
final Class paramDesc = currentOd.getParameterDefinition(name);
if (paramDesc == null)
{
currentOd.getParameterDefinition(name);
throw new ParseException
("The parameter type for '" + name + "' is not known.", getLocator());
}
final ObjectDescription objectDescription =
ObjectFactoryUtility.findDescription(fact, paramDesc, getLocator());
final BasicObjectReadHandler readHandler =
new BasicObjectReadHandler(objectDescription);
basicObjects.put(name, readHandler);
return readHandler;
}
protected XmlReadHandler handleCompoundObject(final Attributes atts)
throws ParseException
{
final String name = atts.getValue(getUri(), "name");
if (name == null)
{
throw new ParseException
("Required attribute 'name' is missing.", getLocator());
}
final ClassFactory fact = getClassFactory();
final ObjectDescription currentObjDesc = getObjectDescription();
final Class parameterDefinition =
currentObjDesc.getParameterDefinition(name);
if (parameterDefinition == null)
{
throw new ParseException("No such parameter description: " + name, getLocator());
}
final ObjectDescription objectDescription =
ObjectFactoryUtility.findDescription(fact,
parameterDefinition, getLocator());
final CompoundObjectReadHandler readHandler =
new CompoundObjectReadHandler(objectDescription);
compoundObjects.put(name, readHandler);
return readHandler;
}
/**
* Starts parsing.
*
* @param attrs the attributes.
* @throws org.xml.sax.SAXException if there is a parsing error.
*/
protected void startParsing(final PropertyAttributes attrs)
throws SAXException
{
handleStartParsing(attrs);
}
}