remotemodelproxy.java

实现了一个基于j2me移动gps定位系统

/*
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 * with or without modification, are permitted provided that the
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 * - Redistribution in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * You may compile, use, perform and display the following files with
 * original Java Smart Ticket Sample Application code obtained from Sun
 * Microsystems, Inc. only:
 * - files in PNG format and having the ".png" extension
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 * - files in JPEG format and having the ".jpg" extension
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 * Neither the name of Sun Microsystems, Inc., the 'Java Smart Ticket
 * Sample Application', 'Java', 'Java'-based names, or the names of
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 * this software without specific prior written permission.
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/*
 * $Id: RemoteModelProxy.java 257 2008-07-17 11:56:07Z khanh.lnq $
 * $URL: https://jvnmobilegis.googlecode.com/svn/trunk/src/org/javavietnam/gis/client/midp/model/RemoteModelProxy.java $
 * $Author: khanh.lnq $
 * $Revision: 257 $
 * $Date: 2008-07-17 18:56:07 +0700 (Thu, 17 Jul 2008) $
 *
 * ====================================================================
 *
 * Copyright (C) 2006-2007 by JVNGIS
 *
 * All copyright notices regarding JVNMobileGIS MUST remain
 * intact in the Java codes and resource files.
 *
 * 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 2 of the License, or
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Support can be obtained from project homepage at:
 * http://code.google.com/p/jvnmobilegis/
 *
 * Correspondence and Marketing Questions can be sent to:
 * khanh.lnq AT gmail.com
 *
 * @version: 1.0
 * @author: Khanh Le
 * @Date Created: 22 Jun 2007
 */

package org.javavietnam.gis.client.midp.model;

import java.util.Vector;

import javax.microedition.lcdui.Image;

import org.javavietnam.gis.client.midp.util.ProgressObserver;
import org.javavietnam.gis.shared.midp.ApplicationException;
import org.javavietnam.gis.shared.midp.CapabilitiesParser;
import org.javavietnam.gis.shared.midp.model.ModelException;
import org.javavietnam.gis.shared.midp.model.ModelObjectLoader;
import org.javavietnam.gis.shared.midp.model.SearchFeatureParameter;
import org.javavietnam.gis.shared.midp.model.WMSRequestParameter;

/**
 * @author khanhlnq
 */
class RemoteModelProxy extends ModelObjectLoader {

    /**
     * @link dependency
     */
    /* # RMSCacheHandler lnkRMSCacheHandler; */
    private RemoteModelRequestHandler requestHandlerChain;

    public RemoteModelProxy() throws ApplicationException {
        requestHandlerChain = new HTTPCommunicationHandler(null);

    }

    public void setProgressObserver(ProgressObserver progressObserver) {
        RemoteModelRequestHandler.setProgressObserver(progressObserver);
    }

    public void init() throws ApplicationException {
        requestHandlerChain.init();

    }

    public void destroy() throws ApplicationException {
        requestHandlerChain.destroy();

    }

    public Image getMapWMS(WMSRequestParameter requestParam, Vector layerList)
            throws ModelException, ApplicationException {
        return requestHandlerChain.getMapWMS(requestParam, layerList);
    }

    public byte[] getMapWMSAsBytes(WMSRequestParameter requestParam,
            Vector layerList) throws ModelException, ApplicationException {
        return requestHandlerChain.getMapWMSAsBytes(requestParam, layerList);
    }

    public String checkUpdate(String updateURL) throws ModelException,
            ApplicationException {
        return requestHandlerChain.checkUpdate(updateURL);
    }

    /*
     * public String findPathWMS(WMSRequestParameter requestParam) throws
     * ModelException, ApplicationException { return
     * requestHandlerChain.findPathWMS(requestParam); }
     */

    public String searchFeature(SearchFeatureParameter searchParam)
            throws ModelException, ApplicationException {
        return requestHandlerChain.searchFeature(searchParam);
    }

    public String getFeatureInfo(WMSRequestParameter requestParam,
            Vector layerList, String infoLayer) throws ModelException,
            ApplicationException {
        return requestHandlerChain.getFeatureInfo(requestParam, layerList,
                infoLayer);
    }

    /*
     * public Image viewPathWMS(WMSRequestParameter requestParam) throws
     * ModelException, ApplicationException { return
     * requestHandlerChain.viewPathWMS(requestParam); }
     */

    public Vector getCapabilitiesWMS(String serviceURL) throws ModelException,
            ApplicationException {
        String result = requestHandlerChain.getCapabilitiesWMS(serviceURL);
        CapabilitiesParser parser = new CapabilitiesParser(result);
        return parser.constructDataTree();
    }

    public String getWwwAuthenticate() throws ApplicationException {
        return requestHandlerChain.getWwwAuthenticate();
    }

    public void setCredentials(String credentials) throws ApplicationException {
        requestHandlerChain.setCredentials(credentials);
    }

    public String getDownloadedDataSize() throws ApplicationException {
        return requestHandlerChain.getTotalData();
    }
}