org.paxle.data.db.impl.InterfaceInterceptor.java Source code

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Here is the source code for org.paxle.data.db.impl.InterfaceInterceptor.java

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/**
 * This file is part of the Paxle project.
 * Visit http://www.paxle.net for more information.
 * Copyright 2007-2010 the original author or authors.
 *
 * Licensed under the terms of the Common Public License 1.0 ("CPL 1.0").
 * Any use, reproduction or distribution of this program constitutes the recipient's acceptance of this agreement.
 * The full license text is available under http://www.opensource.org/licenses/cpl1.0.txt
 * or in the file LICENSE.txt in the root directory of the Paxle distribution.
 *
 * Unless required by applicable law or agreed to in writing, this software is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */

package org.paxle.data.db.impl;

import java.io.IOException;
import java.io.Serializable;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.EmptyInterceptor;
import org.hibernate.EntityMode;
import org.paxle.core.doc.ICommand;
import org.paxle.core.doc.ICommandProfile;
import org.paxle.core.doc.IDocumentFactory;

public class InterfaceInterceptor extends EmptyInterceptor {
    private static final long serialVersionUID = 1L;

    /**
     * For logging
     */
    private Log logger = LogFactory.getLog(this.getClass());

    /**
     * A factory to create new {@link ICommand}s and {@link ICommandProfile}s
     */
    private final IDocumentFactory docFactory;

    public InterfaceInterceptor(IDocumentFactory docFactory) {
        this.docFactory = docFactory;
    }

    @Override
    public String getEntityName(Object object) {
        if (object instanceof ICommand) {
            return ICommand.class.getName();
        } else if (object instanceof ICommandProfile) {
            return ICommandProfile.class.getName();
        }
        return super.getEntityName(object);
    }

    @Override
    public Object instantiate(String entityName, EntityMode entityMode, Serializable id) {
        try {
            if (entityName.endsWith("Command")) {
                final ICommand cmd = this.docFactory.createDocument(ICommand.class);
                cmd.setOID(((Integer) id).intValue());
                return cmd;
            } else if (entityName.equals(ICommandProfile.class.getName())) {
                ICommandProfile profile = this.docFactory.createDocument(ICommandProfile.class);
                profile.setOID(((Integer) id).intValue());
                return profile;
            }
        } catch (IOException e) {
            this.logger.error(String.format("Unable to create a new '%s' using doc-factory '%s': %s", entityName,
                    this.docFactory.getClass().getName(), e.getMessage()), e);
        }

        return super.instantiate(entityName, entityMode, id);
    }
}