/*
* 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 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.metadata.parser;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
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;
import java.util.ArrayList;
public class AttributeGroupReadHandler extends AbstractXmlReadHandler {
private ArrayList<AttributeReadHandler> attributeHandlers;
private String name;
private GlobalMetaDefinition attributeGroups;
private AttributeGroup attributeGroup;
private String bundle;
public AttributeGroupReadHandler( final GlobalMetaDefinition attributeGroups ) {
this.attributeGroups = attributeGroups;
this.attributeHandlers = new ArrayList<AttributeReadHandler>();
}
/**
* Starts parsing.
*
* @param attrs
* the attributes.
* @throws SAXException
* if there is a parsing error.
*/
protected void startParsing( final Attributes attrs ) throws SAXException {
name = attrs.getValue( getUri(), "name" );
if ( name == null ) {
throw new ParseException( "Attribute 'name' is undefined", getLocator() );
}
bundle = attrs.getValue( getUri(), "bundle-name" );
}
/**
* Returns the handler for a child element.
*
* @param uri
* the URI of the namespace of the current element.
* @param tagName
* the tag name.
* @param atts
* the attributes.
* @return the handler or null, if the tagname is invalid.
* @throws SAXException
* if there is a parsing error.
*/
protected XmlReadHandler getHandlerForChild( final String uri, final String tagName, final Attributes atts )
throws SAXException {
if ( getUri().equals( uri ) == false ) {
return null;
}
if ( "attribute".equals( tagName ) ) {
final AttributeReadHandler handler = new AttributeReadHandler( bundle, "" );
attributeHandlers.add( handler );
return handler;
}
return null;
}
/**
* Done parsing.
*
* @throws SAXException
* if there is a parsing error.
*/
protected void doneParsing() throws SAXException {
final AttributeReadHandler[] attributes =
attributeHandlers.toArray( new AttributeReadHandler[attributeHandlers.size()] );
final AttributeDefinition[] definitions = new AttributeDefinition[attributeHandlers.size()];
for ( int i = 0; i < attributes.length; i++ ) {
definitions[i] = attributes[i].getObject();
}
attributeGroup = new AttributeGroup( name, definitions );
attributeGroups.addAttributeGroup( attributeGroup );
}
/**
* Returns the object for this element or null, if this element does not create an object.
*
* @return the object.
* @throws SAXException
* if an parser error occured.
*/
public Object getObject() throws SAXException {
return attributeGroup;
}
}