Java tutorial
/** * * geo-platform * Rich webgis framework * http://geo-platform.org * ==================================================================== * * Copyright (C) 2008-2019 geoSDI Group (CNR IMAA - Potenza - ITALY). * * This program is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. 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 General Public License * for more details. You should have received a copy of the GNU General * Public License along with this program. If not, see http://www.gnu.org/licenses/ * * ==================================================================== * * Linking this library statically or dynamically with other modules is * making a combined work based on this library. Thus, the terms and * conditions of the GNU General Public License cover the whole combination. * * As a special exception, the copyright holders of this library give you permission * to link this library with independent modules to produce an executable, regardless * of the license terms of these independent modules, and to copy and distribute * the resulting executable under terms of your choice, provided that you also meet, * for each linked independent module, the terms and conditions of the license of * that module. An independent module is a module which is not derived from or * based on this library. If you modify this library, you may extend this exception * to your version of the library, but you are not obligated to do so. If you do not * wish to do so, delete this exception statement from your version. */ package org.geosdi.geoplatform.gml.api.jaxb.context.pool; import org.apache.commons.pool2.impl.GenericObjectPool; import org.geosdi.geoplatform.gml.api.jaxb.DefaultGMLUnmarshaller; import org.geosdi.geoplatform.gml.api.jaxb.context.AbstractGMLJAXBContext; import org.geosdi.geoplatform.gml.api.jaxb.context.GMLUnmarshaller; import org.w3c.dom.Node; import org.xml.sax.InputSource; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBElement; import javax.xml.stream.XMLEventReader; import javax.xml.stream.XMLStreamReader; import javax.xml.transform.Source; import java.io.File; import java.io.InputStream; import java.io.Reader; import java.net.URL; /** * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group * @email giuseppe.lascaleia@geosdi.org */ public abstract class GMLJAXBContextPooled extends AbstractGMLJAXBContext implements IGMLJAXBContextPooled { private final GenericObjectPool<GMLUnmarshaller> gmlUnmarshallerPool; public GMLJAXBContextPooled(JAXBContext theJaxbContext) { super(theJaxbContext); this.gmlUnmarshallerPool = new GenericObjectPool<GMLUnmarshaller>( new GMLUnmarshallerFactory(theJaxbContext), new PoolConfig()); } @Override public <T> T unmarshal(File file) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(file); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> T unmarshal(InputStream is) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(is); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> T unmarshal(Reader reader) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(reader); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> T unmarshal(URL url) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(url); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> T unmarshal(InputSource source) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(source); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> T unmarshal(Node node) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(node); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> T unmarshal(Source source) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(source); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> T unmarshal(XMLStreamReader reader) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(reader); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> T unmarshal(XMLEventReader reader) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); Object result = unmarshaller.unmarshal(reader); this.gmlUnmarshallerPool.returnObject(unmarshaller); return (T) ((result instanceof JAXBElement) ? ((JAXBElement) result).getValue() : result); } @Override public <T> JAXBElement<T> unmarshal(Node node, Class<T> declaredType) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); JAXBElement<T> result = unmarshaller.unmarshal(node, declaredType); this.gmlUnmarshallerPool.returnObject(unmarshaller); return result; } @Override public <T> JAXBElement<T> unmarshal(Source source, Class<T> declaredType) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); JAXBElement<T> result = unmarshaller.unmarshal(source, declaredType); this.gmlUnmarshallerPool.returnObject(unmarshaller); return result; } @Override public <T> JAXBElement<T> unmarshal(XMLStreamReader reader, Class<T> declaredType) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); JAXBElement<T> result = unmarshaller.unmarshal(reader, declaredType); this.gmlUnmarshallerPool.returnObject(unmarshaller); return result; } @Override public <T> JAXBElement<T> unmarshal(XMLEventReader reader, Class<T> declaredType) throws Exception { GMLUnmarshaller unmarshaller = this.gmlUnmarshallerPool.borrowObject(); JAXBElement<T> result = unmarshaller.unmarshal(reader, declaredType); this.gmlUnmarshallerPool.returnObject(unmarshaller); return result; } /** * <p>Remember this not use {@link #gmlUnmarshallerPool}</p> * * @return {@link GMLUnmarshaller} * @throws Exception */ @Override public GMLUnmarshaller acquireUnmarshaller() throws Exception { return new DefaultGMLUnmarshaller(jaxbContext.createUnmarshaller()); } }