All Downloads are FREE. Search and download functionalities are using the official Maven repository.
  • Log In
  • Register

    • org.glassfish.hk2.xml.internal.XmlServiceImpl Maven / Gradle / Ivy

    There is a newer version: 4.0.0-M3
    Show newest version
    /*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package org.glassfish.hk2.xml.internal;

import java.net.URI;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.atomic.AtomicLong;

import javax.inject.Inject;
import javax.inject.Singleton;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Unmarshaller;

import org.glassfish.hk2.api.DynamicConfiguration;
import org.glassfish.hk2.api.DynamicConfigurationService;
import org.glassfish.hk2.api.MultiException;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.configuration.hub.api.Hub;
import org.glassfish.hk2.configuration.hub.api.WriteableBeanDatabase;
import org.glassfish.hk2.utilities.reflection.ClassReflectionHelper;
import org.glassfish.hk2.utilities.reflection.internal.ClassReflectionHelperImpl;
import org.glassfish.hk2.xml.api.XmlHubCommitMessage;
import org.glassfish.hk2.xml.api.XmlRootHandle;
import org.glassfish.hk2.xml.api.XmlService;
import org.glassfish.hk2.xml.jaxb.internal.BaseHK2JAXBBean;

/**
 * @author jwells
 *
 */
@Singleton
public class XmlServiceImpl implements XmlService {
    private final static String ID_PREFIX = "XmlServiceUID-";
    
    private final JAUtilities jaUtilities = new JAUtilities();
    
    @Inject
    private ServiceLocator serviceLocator;
    
    @Inject
    private DynamicConfigurationService dynamicConfigurationService;
    
    @Inject
    private Hub hub;
    
    private final ClassReflectionHelper classReflectionHelper = new ClassReflectionHelperImpl();
    
    private final AtomicLong idGenerator = new AtomicLong();
    
    /**
     * Gets the XmlService wide unique identifier
     * @return A unique identifier for unkeyed multi-children
     */
    public String getUniqueId() {
        return ID_PREFIX + idGenerator.getAndAdd(1L);
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.xml.api.XmlService#unmarshall(java.net.URI, java.lang.Class, boolean, boolean)
     */
    @Override
    public  XmlRootHandle unmarshall(URI uri,
            Class jaxbAnnotatedClassOrInterface) {
        return unmarshall(uri, jaxbAnnotatedClassOrInterface, true, true);
    }

    /* (non-Javadoc)
     * @see org.glassfish.hk2.xml.api.XmlService#unmarshall(java.net.URI, java.lang.Class)
     */
    @Override
    public  XmlRootHandle unmarshall(URI uri,
            Class jaxbAnnotatedInterface,
            boolean advertiseInRegistry, boolean advertiseInHub) {
        if (uri == null || jaxbAnnotatedInterface == null) throw new IllegalArgumentException();
        if (!jaxbAnnotatedInterface.isInterface()) {
            throw new IllegalArgumentException("Only an interface can be given to unmarshall: " + jaxbAnnotatedInterface.getName());
        }
        
        try {
            UnparentedNode parent = jaUtilities.convertRootAndLeaves(jaxbAnnotatedInterface);
                
            return unmarshallClass(uri, parent, advertiseInRegistry, advertiseInHub);
        }
        catch (RuntimeException re) {
            throw re;
        }
        catch (Exception e) {
            throw new MultiException(e);
        }
    }
    
    @SuppressWarnings("unchecked")
    private  XmlRootHandle unmarshallClass(URI uri, UnparentedNode node,
            boolean advertise, boolean advertiseInHub) throws Exception {
        JAXBContext context = JAXBContext.newInstance(node.getTranslatedClass());
        
        Listener listener = new Listener();
        Unmarshaller unmarshaller = context.createUnmarshaller();
        unmarshaller.setListener(listener);
        
        T root = (T) unmarshaller.unmarshal(uri.toURL());
        
        DynamicChangeInfo changeControl = new DynamicChangeInfo(jaUtilities,
                ((advertiseInHub) ? hub : null),
                this,
                ((advertise) ? dynamicConfigurationService : null),
                serviceLocator);
        
        for (BaseHK2JAXBBean base : listener.getAllBeans()) {
            String instanceName = Utilities.createInstanceName(base);
            base._setInstanceName(instanceName);
            
            base._setDynamicChangeInfo(changeControl);
        }
        
        DynamicConfiguration config = (advertise) ? dynamicConfigurationService.createDynamicConfiguration() : null ;
        WriteableBeanDatabase wdb = (advertiseInHub) ? hub.getWriteableDatabaseCopy() : null ;
        
        for (BaseHK2JAXBBean bean : listener.getAllBeans()) {
            Utilities.advertise(wdb, config, bean);
        }
        
        if (config != null) {
            config.commit();
        }
        if (wdb != null) {
            wdb.commit(new XmlHubCommitMessage() {});
        }
        
        return new XmlRootHandleImpl(this, hub, root, node, uri, advertise, advertiseInHub, changeControl);
    }
    
    

    /* (non-Javadoc)
     * @see org.glassfish.hk2.xml.api.XmlService#createEmptyHandle(java.lang.Class)
     */
    @Override
    public  XmlRootHandle createEmptyHandle(
            Class jaxbAnnotatedInterface, boolean advertiseInRegistry,
            boolean advertiseInHub) {
        if (!jaxbAnnotatedInterface.isInterface()) {
            throw new IllegalArgumentException("Only an interface can be given to unmarshall: " + jaxbAnnotatedInterface.getName());
        }
        try {
            UnparentedNode node = jaUtilities.convertRootAndLeaves(jaxbAnnotatedInterface);
        
            return new XmlRootHandleImpl(this, hub, null, node, null, advertiseInRegistry, advertiseInHub,
                    new DynamicChangeInfo(jaUtilities,
                            hub,
                            this,
                            ((advertiseInRegistry) ? dynamicConfigurationService : null),
                            serviceLocator));
        }
        catch (RuntimeException re) {
            throw re;
        }
        catch (Exception e) {
            throw new MultiException(e);
        }
    }
    
    /* (non-Javadoc)
     * @see org.glassfish.hk2.xml.api.XmlService#createEmptyHandle(java.lang.Class, boolean, boolean)
     */
    @Override
    public  XmlRootHandle createEmptyHandle(
            Class jaxbAnnotationInterface) {
        return createEmptyHandle(jaxbAnnotationInterface, true, true);
    }
    
    private class Listener extends Unmarshaller.Listener {
        private final LinkedList allBeans = new LinkedList();
        
        private void setUserKey(BaseHK2JAXBBean bean, boolean listOrArray) {
            UnparentedNode model = bean._getModel();
            
            String keyProperty = model.getKeyProperty();
            if (keyProperty == null && listOrArray) {
                bean._setKeyValue(getUniqueId());
                
                return;
            }
            
            if (keyProperty == null) return;
            
            String key = (String) bean._getProperty(keyProperty);
            if (key == null) return;
            
            bean._setKeyValue(key);
        }
        
        @SuppressWarnings("unchecked")
        private void setSelfXmlTagInAllChildren(BaseHK2JAXBBean targetBean) {
            UnparentedNode model = targetBean._getModel();
            
            for (ParentedNode parentedNode : model.getAllChildren()) {
                Object children = targetBean._getProperty(parentedNode.getChildName());
                if (children == null) continue;
                
                if (children instanceof List) {
                    for (Object child : (List) children) {
                        BaseHK2JAXBBean childBean = (BaseHK2JAXBBean) child;
                        
                        childBean._setSelfXmlTag(parentedNode.getChildName());
                        
                        setUserKey(childBean, true);
                    }
                    
                }
                else if (children.getClass().isArray()) {
                    for (Object child : (Object[]) children) {
                        BaseHK2JAXBBean childBean = (BaseHK2JAXBBean) child;
                        
                        childBean._setSelfXmlTag(parentedNode.getChildName());
                        
                        setUserKey(childBean, true);
                    }
                }
                else {
                    BaseHK2JAXBBean childBean = (BaseHK2JAXBBean) children;
                    
                    childBean._setSelfXmlTag(parentedNode.getChildName());
                    
                    setUserKey(childBean, false);
                }
            }
        }
        
        @Override
        public void afterUnmarshal(Object target, Object parent) {
            if (!(target instanceof BaseHK2JAXBBean)) return;
            
            BaseHK2JAXBBean targetBean = (BaseHK2JAXBBean) target;
            BaseHK2JAXBBean parentBean = (BaseHK2JAXBBean) parent;
            UnparentedNode targetNode = targetBean._getModel();
            
            allBeans.add(targetBean);
            
            if (parentBean == null) {
                targetBean._setSelfXmlTag(targetNode.getRootName());
            }
            setSelfXmlTagInAllChildren(targetBean);
        }
        
        @Override
        public void beforeUnmarshal(Object target, Object parent) {
            if (!(target instanceof BaseHK2JAXBBean)) return;
            
            BaseHK2JAXBBean targetBean = (BaseHK2JAXBBean) target;
            UnparentedNode targetNode = jaUtilities.getNode(target.getClass());
            
            targetBean._setModel(targetNode, classReflectionHelper);
            targetBean._setParent(parent);
        }
        
        private LinkedList getAllBeans() {
            return allBeans;
        }
        
    }

    /* (non-Javadoc)
     * @see org.glassfish.hk2.xml.api.XmlService#createBean(java.lang.Class)
     */
    @SuppressWarnings("unchecked")
    @Override
    public  T createBean(Class beanInterface) {
        if (!beanInterface.isInterface()) {
            throw new IllegalArgumentException("Only an interface can be given to unmarshall: " + beanInterface.getName());
        }
        
        UnparentedNode node = jaUtilities.convertRootAndLeaves(beanInterface);
        
        T retVal = (T) Utilities.createBean(node.getTranslatedClass());
        
        ((BaseHK2JAXBBean) retVal)._setModel(node, classReflectionHelper);
        
        return retVal;
    }

    /* package */ ClassReflectionHelper getClassReflectionHelper() {
        return classReflectionHelper;
    }
    
    /* package */ DynamicConfigurationService getDynamicConfigurationService() {
        return dynamicConfigurationService;
    }
   
}
    
    
    
    

    




    
    
    © 2015 - 2025 Weber Informatics LLC | Privacy Policy