org.apache.poi.xslf.usermodel.XSLFFactory Maven / Gradle / Ivy
/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
* ====================================================================
*/
package org.apache.poi.xslf.usermodel;
import org.apache.poi.POIXMLDocumentPart;
import org.apache.poi.POIXMLException;
import org.apache.poi.POIXMLFactory;
import org.apache.poi.POIXMLRelation;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackageRelationship;
import org.apache.poi.util.Beta;
import org.apache.poi.util.POILogFactory;
import org.apache.poi.util.POILogger;
import java.lang.reflect.Constructor;
/**
* Instantiates sub-classes of POIXMLDocumentPart depending on their relationship type
*
* @author Yegor Kozlov
*/
@Beta
public final class XSLFFactory extends POIXMLFactory {
private static final POILogger logger = POILogFactory.getLogger(XSLFFactory.class);
private XSLFFactory(){
}
private static final XSLFFactory inst = new XSLFFactory();
public static XSLFFactory getInstance(){
return inst;
}
@Override
public POIXMLDocumentPart createDocumentPart(POIXMLDocumentPart parent, PackageRelationship rel, PackagePart part){
POIXMLRelation descriptor = XSLFRelation.getInstance(rel.getRelationshipType());
if(descriptor == null || descriptor.getRelationClass() == null){
logger.log(POILogger.DEBUG, "using default POIXMLDocumentPart for " + rel.getRelationshipType());
return new POIXMLDocumentPart(part, rel);
}
try {
Class cls = descriptor.getRelationClass();
Constructor constructor = cls.getDeclaredConstructor(PackagePart.class, PackageRelationship.class);
return constructor.newInstance(part, rel);
} catch (Exception e){
throw new POIXMLException(e);
}
}
@Override
public POIXMLDocumentPart newDocumentPart(POIXMLRelation descriptor){
try {
Class cls = descriptor.getRelationClass();
Constructor constructor = cls.getDeclaredConstructor();
return constructor.newInstance();
} catch (Exception e){
throw new POIXMLException(e);
}
}
}