/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */

package com.sun.star.comp.urlresolver;


import com.sun.star.bridge.XBridge;
import com.sun.star.bridge.XBridgeFactory;
import com.sun.star.bridge.XUnoUrlResolver;

import com.sun.star.comp.loader.FactoryHelper;

import com.sun.star.connection.ConnectionSetupException;
import com.sun.star.connection.NoConnectException;
import com.sun.star.connection.XConnection;
import com.sun.star.connection.XConnector;

import com.sun.star.lang.IllegalArgumentException;
import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.lang.XSingleServiceFactory;

import com.sun.star.registry.XRegistryKey;

import com.sun.star.uno.UnoRuntime;


/**
 * This component gives a factory for an <code>UnoUrlResolver</code> service.
 *
 * @see         com.sun.star.bridge.XBridgeFactory
 * @see         com.sun.star.connection.Connector
 * @since       UDK1.0
 */
public class UrlResolver {
    static public class _UrlResolver implements XUnoUrlResolver {
        static private final String __serviceName = "com.sun.star.bridge.UnoUrlResolver";

        private final XMultiServiceFactory _xMultiServiceFactory;

        public _UrlResolver(XMultiServiceFactory xMultiServiceFactory) {
            _xMultiServiceFactory = xMultiServiceFactory;
        }

        public Object resolve(/*IN*/String dcp) throws NoConnectException, ConnectionSetupException, IllegalArgumentException, com.sun.star.uno.RuntimeException {
            String conDcp  ;
            String protDcp  ;
            String rootOid  ;

            if(dcp.indexOf(';') == -1) {// use old style
                conDcp = dcp;
                protDcp = "iiop";
                rootOid = "classic_uno";
            }
            else { // new style
                int index = dcp.indexOf(':');
                dcp = dcp.substring(index + 1).trim();

                index = dcp.indexOf(';');
                conDcp = dcp.substring(0, index).trim();
                dcp = dcp.substring(index + 1).trim();

                index = dcp.indexOf(';');
                protDcp = dcp.substring(0, index).trim();
                dcp = dcp.substring(index + 1).trim();

                rootOid = dcp.trim().trim();
            }

            Object rootObject  ;
            XBridgeFactory xBridgeFactory ;
            try {
                xBridgeFactory = UnoRuntime.queryInterface(XBridgeFactory.class,
                                                                          _xMultiServiceFactory.createInstance("com.sun.star.bridge.BridgeFactory"));
            } catch (com.sun.star.uno.Exception e) {
                throw new com.sun.star.uno.RuntimeException(e);
            }
            XBridge xBridge = xBridgeFactory.getBridge(conDcp + ";" + protDcp);

            if(xBridge == null) {
                Object connector ;
                try {
                    connector = _xMultiServiceFactory.createInstance("com.sun.star.connection.Connector");
                } catch (com.sun.star.uno.Exception e) {
                        throw new com.sun.star.uno.RuntimeException(e);
                }

                XConnector connector_xConnector = UnoRuntime.queryInterface(XConnector.class, connector);

                // connect to the server
                XConnection xConnection = connector_xConnector.connect(conDcp);
                try {
                    xBridge = xBridgeFactory.createBridge(conDcp + ";" + protDcp, protDcp, xConnection, null);
                } catch (com.sun.star.bridge.BridgeExistsException e) {
                    throw new com.sun.star.uno.RuntimeException(e);
                }
            }
            rootObject = xBridge.getInstance(rootOid);
            return rootObject;
        }
    }


    /**
     * Gives a factory for creating the service.
     *
     * <p>This method is called by the <code>JavaLoader</code>.</p>
     *
     * @param   implName     the name of the implementation for which a service is desired.
     * @param   multiFactory the service manager to be uses if needed.
     * @param   regKey       the registryKey.
     * @return  returns a <code>XSingleServiceFactory</code> for creating the component.
     *
     * @see                  com.sun.star.comp.loader.JavaLoader
     */
    public static XSingleServiceFactory __getServiceFactory(String implName,
                                                            XMultiServiceFactory multiFactory,
                                                            XRegistryKey regKey)
    {
        XSingleServiceFactory xSingleServiceFactory = null;

          if (implName.equals(UrlResolver.class.getName()) )
            xSingleServiceFactory = FactoryHelper.getServiceFactory(_UrlResolver.class,
                                                                    _UrlResolver.__serviceName,
                                                                    multiFactory,
                                                                    regKey);

        return xSingleServiceFactory;
    }
}
