/* * 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.modules.parser.ext.readhandlers; import org.pentaho.reporting.engine.classic.core.modules.parser.base.PropertyAttributes; import org.pentaho.reporting.engine.classic.core.modules.parser.base.ReportParserUtil; import org.pentaho.reporting.engine.classic.core.style.ElementStyleKeys; import org.pentaho.reporting.engine.classic.core.style.ElementStyleSheet; import org.pentaho.reporting.libraries.xmlns.parser.IgnoreAnyChildReadHandler; import org.pentaho.reporting.libraries.xmlns.parser.ParseException; import org.pentaho.reporting.libraries.xmlns.parser.RootXmlReadHandler; import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler; import org.xml.sax.SAXException; import java.util.HashMap; public class StyleReadHandler extends CompoundObjectReadHandler { private HashMap<String, ElementStyleSheet> styleSheetCollection; private ElementStyleSheet styleSheet; private boolean createStyle; public StyleReadHandler() { this( null ); } public StyleReadHandler( final ElementStyleSheet styleSheet ) { super( new ElementStyleSheetObjectDescription() ); this.styleSheet = styleSheet; this.createStyle = ( styleSheet == null ); } /** * Initialises the handler. * * @param rootHandler * the root handler. * @param tagName * the tag name. */ public void init( final RootXmlReadHandler rootHandler, final String uri, final String tagName ) throws SAXException { super.init( rootHandler, uri, tagName ); styleSheetCollection = (HashMap<String, ElementStyleSheet>) rootHandler.getHelperObject( ReportParserUtil.HELPER_OBJ_LEGACY_STYLES ); } /** * 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 { if ( createStyle ) { final String name = attrs.getValue( getUri(), "name" ); if ( name == null ) { throw new ParseException( "Required attribute 'name' is missing.", getLocator() ); } styleSheet = new ElementStyleSheet(); styleSheetCollection.put( name, styleSheet ); } final ElementStyleSheetObjectDescription objectDescription = (ElementStyleSheetObjectDescription) getObjectDescription(); objectDescription.init( getRootHandler(), styleSheet ); } /** * 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 ( "extends".equals( tagName ) ) { return new StyleExtendsReadHandler( styleSheetCollection, styleSheet ); } if ( "basic-key".equals( tagName ) ) { final String name = atts.getValue( getUri(), "name" ); if ( ElementStyleKeys.isLegacyKey( name ) ) { return new IgnoreAnyChildReadHandler(); } return handleBasicObject( atts ); } else if ( "compound-key".equals( tagName ) ) { final String name = atts.getValue( getUri(), "name" ); if ( ElementStyleKeys.isLegacyKey( name ) ) { return new IgnoreAnyChildReadHandler(); } return handleCompoundObject( atts ); } return null; } /** * Returns the object for this element or null, if this element does not create an object. * * @return the object. */ public Object getObject() { return styleSheet; } }