mapservice.java

mapxtreme java实现的瘦客户端webgis

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   Mapservice.java

import com.mapinfo.dp.*;
import com.mapinfo.dp.annotation.AnnotationDataProviderHelper;
import com.mapinfo.dp.annotation.AnnotationTableDescHelper;
import com.mapinfo.dp.util.LocalDataProviderRef;
import com.mapinfo.graphics.Rendition;
import com.mapinfo.graphics.RenditionImpl;
import com.mapinfo.mapdefcontainer.FileMapDefContainer;
import com.mapinfo.mapdefcontainer.OraSoMapDefContainer;
import com.mapinfo.mapj.*;
import com.mapinfo.mapxtreme.client.MapXtremeImageRenderer;
import com.mapinfo.util.DoublePoint;
import com.mapinfo.util.DoubleRect;
import com.mapinfo.xmlprot.mxtj.ImageRequestComposer;
import java.awt.Color;
import java.io.*;
import java.util.Vector;
import javax.servlet.*;
import javax.servlet.http.*;

public class Mapservice extends HttpServlet
{

    private boolean errflag;
    private String errmessage;
    private String mapxtremeurl;
    private String imgtype;
    private int imgsizex;
    private int imgsizey;
    private int smallimgsizex;
    private int smallimgsizey;
    private Color imgbgcolor;
    private String datasource;
    private String database;
    private String dbusername;
    private String dbpassword;
    private String dbtable;
    private String dbnamecol;
    private String dbmapdefcol;
    private String filetype;
    private String mdfpath;
    private String gstpath;
    private String mapdef;
    static DoublePoint resetpoint = null;
    static double resetzoom = 0.0D;

    public Mapservice()
    {
        errflag = false;
        errmessage = null;
        mapxtremeurl = "http://localhost:8080/mapxtreme47/servlet/mapxtreme";
        imgtype = "jpeg";
        imgsizex = 480;
        imgsizey = 360;
        smallimgsizex = 240;
        smallimgsizey = 180;
        imgbgcolor = Color.white;
        dbusername = "mapinfo";
        dbpassword = "mapinfo";
        dbtable = "mapinfo.mapdefinitions";
        dbnamecol = "name";
        dbmapdefcol = "mapdef";
        filetype = "mdf";
        mdfpath = null;
        gstpath = null;
        mapdef = null;
    }

    public void init()
        throws ServletException
    {
        String strParam = getInitParameter("mapxtremeurl");
        if(strParam != null && strParam.length() > 0)
            mapxtremeurl = strParam;
        strParam = getInitParameter("imgtype");
        if(strParam != null && strParam.length() > 0)
            imgtype = strParam;
        strParam = getInitParameter("imgsizex");
        if(strParam != null && strParam.length() > 0)
            imgsizex = (new Integer(strParam)).intValue();
        strParam = getInitParameter("imgsizey");
        if(strParam != null && strParam.length() > 0)
            imgsizey = (new Integer(strParam)).intValue();
        strParam = getInitParameter("smallimgsizex");
        if(strParam != null && strParam.length() > 0)
            smallimgsizex = (new Integer(strParam)).intValue();
        strParam = getInitParameter("smallimgsizey");
        if(strParam != null && strParam.length() > 0)
            smallimgsizey = (new Integer(strParam)).intValue();
        strParam = getInitParameter("imgbgcolor");
        if(strParam != null && strParam.length() > 0)
            imgbgcolor = new Color((new Integer(strParam)).intValue());
        strParam = getInitParameter("datasource");
        if(strParam != null && strParam.length() > 0)
            datasource = strParam;
        if(datasource == null)
            errset("请指定数据源类型");
        else
        if(datasource.equals("oracle"))
        {
            strParam = getInitParameter("database");
            if(strParam != null && strParam.length() > 0)
                database = strParam;
            if(database == null)
                errset("请指定数据库url");
            strParam = getInitParameter("dbusername");
            if(strParam != null && strParam.length() > 0)
                dbusername = strParam;
            strParam = getInitParameter("dbpassword");
            if(strParam != null && strParam.length() > 0)
                dbpassword = strParam;
            strParam = getInitParameter("dbtable");
            if(strParam != null && strParam.length() > 0)
                dbtable = strParam;
            strParam = getInitParameter("dbnamecol");
            if(strParam != null && strParam.length() > 0)
                dbnamecol = strParam;
            strParam = getInitParameter("dbmapdefcol");
            if(strParam != null && strParam.length() > 0)
                dbmapdefcol = strParam;
        } else
        if(datasource.equals("file"))
        {
            strParam = getInitParameter("filetype");
            if(strParam != null && strParam.length() > 0)
                filetype = strParam;
            if(filetype.equals("mdf"))
            {
                strParam = getInitParameter("mdfpath");
                if(strParam != null && strParam.length() > 0)
                    mdfpath = strParam;
                if(mdfpath == null)
                    errset("请指定mdf地图定义文件路径");
            } else
            {
                strParam = getInitParameter("gstpath");
                if(strParam != null && strParam.length() > 0)
                    gstpath = strParam;
                if(gstpath == null)
                    errset("请指定gst地图定义文件路径");
            }
        }
        strParam = getInitParameter("mapdef");
        if(strParam != null && strParam.length() > 0)
            mapdef = strParam;
        if(mapdef == null)
            errset("请指定地图定义名称");
        try
        {
            MapJ tempmap = initMapJ();
            resetpoint = tempmap.getCenter();
            resetzoom = tempmap.getZoom();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }

    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        if(errflag)
        {
            PrintWriter out = response.getWriter();
            response.setContentType("text/html; charset=GBK");
            out.print(errmessage);
            out.close();
        }
        MapJ mymap = null;
        MapJ boundmap = null;
        String rqutype = request.getParameter("rqutype");
        if(rqutype != null && rqutype.equals("initmap"))
        {
            mymap = initmap(request);
            responseimg(mymap, response);
        } else
        if(rqutype != null && rqutype.equals("chgmapview"))
        {
            mymap = initmap(request);
            chgmapview(mymap, request);
            responseimg(mymap, response);
        } else
        if(rqutype != null && rqutype.equals("panmap"))
        {
            mymap = initmap(request);
            panmap(mymap, request);
            responseimg(mymap, response);
        } else
        if(rqutype != null && rqutype.equals("resetmap"))
        {
            mymap = initmap(request);
            resetmap(mymap, request);
            responseimg(mymap, response);
        } else
        if(rqutype != null && rqutype.equals("centerpoint"))
        {
            mymap = initmap(request);
            responsetext(mymap, response, "centerpoint");
        } else
        if(rqutype != null && rqutype.equals("zoom"))
        {
            mymap = initmap(request);
            responsetext(mymap, response, "zoom");
        } else
        if(rqutype != null && rqutype.equals("boundmap"))
        {
            mymap = initmap(request);
            boundmap = initboundmap(request);
            responsebound(mymap, boundmap, response);
        } else
        if(rqutype != null && rqutype.equals("smallpanmap"))
        {
            mymap = initmap(request);
            boundmap = initboundmap(request);
            resetbybound(mymap, boundmap, request);
            responseimg(mymap, response);
        }
    }

    private MapJ initmap(HttpServletRequest request)
    {
        MapJ mymap = null;
        mymap = (MapJ)request.getSession().getAttribute("mapj");
        if(mymap == null)
            try
            {
                mymap = initMapJ();
                if(request.getParameter("oldx") != null && request.getParameter("oldy") != null)
                {
                    Double oldx = new Double(request.getParameter("oldx"));
                    Double oldy = new Double(request.getParameter("oldy"));
                    DoublePoint mappoint = new DoublePoint(oldx.doubleValue(), oldy.doubleValue());
                    Double oldzoom = new Double(request.getParameter("oldzoom"));
                    mymap.setCenter(mappoint);
                    mymap.setZoom(oldzoom.doubleValue());
                }
                request.getSession().setAttribute("mapj", mymap);
            }
            catch(Exception e)
            {
                e.printStackTrace();
            }