geoserver.java

电子地图服务器,搭建自己的地图服务

/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org.  All rights reserved.
 * This code is licensed under the GPL 2.0 license, availible at the root
 * application directory.
 */
package org.vfny.geoserver.global;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import java.util.Set;
import java.util.logging.Level;

import javax.imageio.ImageIO;
import javax.media.jai.JAI;
import javax.media.jai.RecyclingTileFactory;
import javax.servlet.ServletContext;

import org.apache.log4j.Appender;
import org.apache.log4j.LogManager;
import org.apache.log4j.PropertyConfigurator;
import org.geotools.data.DataStoreFactorySpi;
import org.springframework.beans.factory.DisposableBean;
import org.vfny.geoserver.global.dto.ContactDTO;
import org.vfny.geoserver.global.dto.GeoServerDTO;
import org.vfny.geoserver.util.Requests;

import com.sun.media.jai.util.SunTileCache;


/**
 * Complete configuration set for the whole server
 *
 * @author Gabriel Roldan
 * @author dzwiers
 * @version $Id: GeoServer.java 7746 2007-11-13 15:38:35Z aaime $
 */
public class GeoServer extends GlobalLayerSupertype implements DisposableBean {
    /**
     * Simple listener interface.
     * 
     * JD: this is a temporary substitute until we have a decent config system.
     */
    public interface Listener {
        /**
         * Callback fired when application state has changed.
         */
        void changed();
        
    }
    
    /**
     * For finding the instance of this class to use from the web container
     *
     * <p>
     * ServletContext sc = ... GeoServer gs =
     * (GeoServer)sc.getAttribute(GeoServer.WEB_CONTAINER_KEY);
     * </p>
     */
    public static final String WEB_CONTAINER_KEY = "GeoServer";
    private String title;
    private int maxFeatures = Integer.MAX_VALUE;
    private boolean verbose = true;
    private int numDecimals = 4;
    private Charset charSet = Charset.forName("UTF-8");
    private final JAI jaiDef = JAI.getDefaultInstance();
    private SunTileCache jaiCache;
    private String adminUserName = "admin";
    private String adminPassword;
    private String schemaBaseUrl;
    private String proxyBaseUrl;
    private String contactPerson;
    private String contactOrganization;
    private String contactPosition;
    private String addressType;
    private String address;
    private String addressCity;
    private String addressState;
    private String addressPostalCode;
    private String addressCountry;
    private String contactVoice;
    private String contactFacsimile;
    private String contactEmail;
    private String onlineResource;
    private double memoryCapacity;
    private double memoryThreshold;
    private int tileThreads;
    private int tilePriority;
    private String tileCache;
    private Boolean recycling;
    private Boolean imageIOCache;
    private Boolean JPEGnativeAcc;
    private Boolean PNGnativeAcc;

    /** Should we throw the stack traces back in responses? */
    private boolean verboseExceptions = false;

    private String log4jConfigFile;
    private boolean suppressStdOutLogging = false;
    private String logLocation = null;

    private List listeners;
    private Config config;
    
    /**
     * Default constructor only to facilitate unit testing mock ups; real
     * uses shall create an instance through {@link #GeoServer(Config)}.
     */
    public GeoServer() {
        //do nothing
    }

    /**
     * Creates a GeoServer instance and loads its configuration.
     *
     * @throws ConfigurationException
     */
    public GeoServer(Config config) throws ConfigurationException {
        LOGGER.fine("Creating GeoServer");
        load(config.getGeoServer());
        this.config = config;
        
        listeners = new ArrayList();    
    }

    /**
     * Adds a listener to be notified of state change.
     */
    public void addListener( Listener listener ) {
        listeners.add( listener );
    }

    /**
     * Removes a listener.
     */
    public void removeListener( Listener listener ) {
        listeners.remove( listener );
    }
    
    /**
     * Notifies all listeners of a change.
     */
    public void fireChange() {
        for ( Iterator l = listeners.iterator(); l.hasNext(); ) {
            Listener listener = (Listener) l.next();
            try {
                listener.changed();
            }
            catch( Throwable t ) {
                LOGGER.warning( "listener threw exception, turn logging to FINE to view stack trace" );
                LOGGER.log( Level.FINE, t.getLocalizedMessage(), t );
            }
        }
    }
    /**
     * getAddress purpose.
     *
     * <p>
     * Returns the contact Address.
     * </p>
     *
     * @return String the contact Address.
     */
    public String getAddress() {
        return notNull(address);
    }

    /**
     * getAddressCity purpose.
     *
     * <p>
     * Returns the contact City.
     * </p>
     *
     * @return String the contact City.
     */
    public String getAddressCity() {
        return notNull(addressCity);
    }

    /**
     * getAddressCountry purpose.
     *
     * <p>
     * Returns the contact Country.
     * </p>
     *
     * @return String the contact Country.
     */
    public String getAddressCountry() {
        return notNull(addressCountry);
    }

    /**
     * getAddressPostalCode purpose.
     *
     * <p>
     * Returns the contact PostalCode.
     * </p>
     *
     * @return String the contact PostalCode.
     */
    public String getAddressPostalCode() {
        return notNull(addressPostalCode);
    }

    /**
     * getAddressState purpose.
     *
     * <p>
     * Returns the contact State.
     * </p>
     *
     * @return String the contact State.
     */
    public String getAddressState() {
        return notNull(addressState);
    }

    /**
     * getAddressType purpose.
     *
     * <p>
     * Returns the contact Address Type.
     * </p>
     *
     * @return String the contact Address Type.
     */
    public String getAddressType() {
        return notNull(addressType);
    }

    /**
     * getCharSet purpose.
     *
     * <p>
     * Returns the default charset for this server instance.
     * </p>
     *
     * @return Charset the default charset for this server instance.
     */
    public Charset getCharSet() {
        if (charSet != null) {
            return charSet;
        }

        return Charset.forName("UTF-8");
    }

    /**
     * getContactEmail purpose.
     *
     * <p>
     * Returns the contact Email.
     * </p>
     *
     * @return String the contact Email.
     */
    public String getContactEmail() {
        return notNull(contactEmail);
    }

    /**
     * getContactFacsimile purpose.
     *
     * <p>
     * Returns the contact Facsimile.
     * </p>
     *
     * @return String the contact Facsimile.
     */
    public String getContactFacsimile() {
        return notNull(contactFacsimile);
    }

    /**
     * getContactOrganization purpose.
     *
     * <p>
     * Returns the contact Organization.
     * </p>
     *
     * @return String the contact Organization.
     */
    public String getContactOrganization() {
        return notNull(contactOrganization);
    }

    /**
     * getContactPerson purpose.
     *
     * <p>
     * Returns the contact Person.
     * </p>
     *
     * @return String the contact Person.
     */
    public String getContactPerson() {
        return notNull(contactPerson);
    }

    /**
     * getContactPosition purpose.
     *
     * <p>
     * Returns the contact Position.
     * </p>
     *
     * @return String the contact Position.
     */
    public String getContactPosition() {
        return notNull(contactPosition);
    }

    /**
     * getContactVoice purpose.
     *
     * <p>
     * Returns the contact Phone.
     * </p>
     *
     * @return String the contact Phone.
     */
    public String getContactVoice() {
        return notNull(contactVoice);
    }

    /**
     * getOnlineResource purpose.
     *
     * <p>
     * Returns the online Resource.
     * </p>
     *
     * @return String the online Resource.
     */
    public String getOnlineResource() {
        return notNull(onlineResource);
    }