/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2003 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.netbeans.modules.tomcat5;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.InputStream;
import java.io.OutputStream;
import javax.enterprise.deploy.model.DDBean;
import javax.enterprise.deploy.model.DDBeanRoot;
import javax.enterprise.deploy.model.DeployableObject;
import javax.enterprise.deploy.model.XpathEvent;
import javax.enterprise.deploy.spi.DConfigBean;
import javax.enterprise.deploy.spi.DConfigBeanRoot;
import javax.enterprise.deploy.spi.DeploymentConfiguration;
import javax.enterprise.deploy.spi.exceptions.BeanNotFoundException;
import javax.enterprise.deploy.spi.exceptions.ConfigurationException;
import org.netbeans.modules.schema2beans.BaseBean;
import org.netbeans.modules.tomcat5.config.Context;
import org.openide.util.NbBundle;

/** Server specific configuration data related to Tomcat 5 server
 *
 * @author  Radim Kubacki
 */
public class WebappConfiguration implements DeploymentConfiguration {
    
    private DeployableObject deplObj;
    
    private DConfigRootWrapper contextRootBean;
    
    /** Creates a new instance of WebappConfiguration */
    public WebappConfiguration (DeployableObject deplObj) {
        this.deplObj = deplObj;
    }
    
    public DConfigBeanRoot getDConfigBeanRoot (DDBeanRoot dDBeanRoot) 
    throws ConfigurationException {
        if (contextRootBean == null) {
            // init default values for SSD
            Context ctx = new Context ();
            contextRootBean = new DConfigRootWrapper (dDBeanRoot, ctx);
        }
        return contextRootBean;
    }
    
    public DeployableObject getDeployableObject () {
        return deplObj;
    }
    
    public void removeDConfigBean (DConfigBeanRoot dConfigBeanRoot) 
    throws BeanNotFoundException {
        throw new BeanNotFoundException ("bean not found in WebappConfiguration "+dConfigBeanRoot);
    }
    
    public void restore (InputStream is) 
    throws ConfigurationException {
        restoreDConfigBean (is, deplObj.getDDBeanRoot ());
    }
    
    public DConfigBeanRoot restoreDConfigBean (InputStream is, DDBeanRoot dDBeanRoot) 
    throws ConfigurationException {
        try {
            Context ctx = Context.createGraph (is);
            contextRootBean = new DConfigRootWrapper (dDBeanRoot, ctx);
        }
        catch (Exception e) {
            throw new ConfigurationException (NbBundle.getMessage (WebappConfiguration.class, "MSG_Loading_Config")); //NOI18N
        }
        return contextRootBean;
    }
    
    public void save (OutputStream os) throws ConfigurationException {
        try {
            DConfigRootWrapper cb = (DConfigRootWrapper)getDConfigBeanRoot (deplObj.getDDBeanRoot ());
            cb.getBaseBean ().write (os);
        }
        catch (java.io.IOException ioe) {
            throw new ConfigurationException (ioe.getMessage ());
        }
    }
    
    public void saveDConfigBean (OutputStream os, DConfigBeanRoot dConfigBeanRoot) 
    throws ConfigurationException {
        if (dConfigBeanRoot instanceof DConfigRootWrapper) {
            BaseBean bb = ((DConfigRootWrapper)dConfigBeanRoot).getBaseBean ();
            try {
                bb.write (os);
            }
            catch (java.io.IOException ioe) {
                throw new ConfigurationException (ioe.getMessage ());
            }
        }
        else {
            throw new ConfigurationException ("saveDConfigBean failed. Cannot save "+dConfigBeanRoot);
        }
    }
    
    public String getPath () {
        return contextRootBean.getContextRoot ();
    }
    
    public void setPath (String path) {
        contextRootBean.setContextRoot (path);
    }
    
    /** Wrapper for config objects generated from schema2beans
     */
    static class DConfigBeanWrapper implements DConfigBean {
        
        /** Associated bean from standard deployment descriptor. */
        private DDBean ddBean;
        
        /** Encapsulaed bean. */
        private BaseBean configBean;
        
        /** Creates DConfigBean for given DDBean that is 
         * represented by object maintained by schema2beans.
         *
         * @param ddBean Bean from standard deploymet descriptor.
         * @param configBean wrapped schema2beans object.
         */
        public DConfigBeanWrapper (DDBean ddBean, BaseBean configBean) {
            this.configBean = configBean;
            this.ddBean = ddBean;
        }
        
        public BaseBean getBaseBean () {
            return configBean;
        }
        
        public DConfigBean getDConfigBean (DDBean dDBean) 
        throws ConfigurationException {
            return this;
        }
        
        public DDBean getDDBean () {
            return ddBean;
        }
        
        public String[] getXpaths () {
            return null;
        }
        
        public void notifyDDChange (XpathEvent xpathEvent) {
        }
        
        public void removeDConfigBean (DConfigBean dConfigBean) 
        throws BeanNotFoundException {
        }
        
        public void addPropertyChangeListener (PropertyChangeListener pcl) {
            configBean.addPropertyChangeListener (pcl);
        }
        
        public void removePropertyChangeListener (PropertyChangeListener pcl) {
            configBean.removePropertyChangeListener (pcl);
        }
        
    }
}