Source Code Cross Referenced for Main.java in  » GIS » geonetwork » org » wfp » vam » intermap » services » map » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » geonetwork » org.wfp.vam.intermap.services.map 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        //=============================================================================
002:        //===	Copyright (C) 2001-2007 Food and Agriculture Organization of the
003:        //===	United Nations (FAO-UN), United Nations World Food Programme (WFP)
004:        //===	and United Nations Environment Programme (UNEP)
005:        //===
006:        //===	This program is free software; you can redistribute it and/or modify
007:        //===	it under the terms of the GNU General Public License as published by
008:        //===	the Free Software Foundation; either version 2 of the License, or (at
009:        //===	your option) any later version.
010:        //===
011:        //===	This program is distributed in the hope that it will be useful, but
012:        //===	WITHOUT ANY WARRANTY; without even the implied warranty of
013:        //===	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014:        //===	General Public License for more details.
015:        //===
016:        //===	You should have received a copy of the GNU General Public License
017:        //===	along with this program; if not, write to the Free Software
018:        //===	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
019:        //===
020:        //===	Contact: Jeroen Ticheler - FAO - Viale delle Terme di Caracalla 2,
021:        //===	Rome - Italy. email: geonetwork@osgeo.org
022:        //==============================================================================
023:
024:        package org.wfp.vam.intermap.services.map;
025:
026:        import org.jdom.*;
027:
028:        import jeeves.interfaces.*;
029:        import jeeves.server.*;
030:        import jeeves.server.context.*;
031:
032:        import org.wfp.vam.intermap.kernel.map.*;
033:        import org.wfp.vam.intermap.Constants;
034:
035:        //=============================================================================
036:
037:        /** main.result service. shows search results
038:         */
039:
040:        public class Main implements  Service {
041:            public void init(String appPath, ServiceConfig config)
042:                    throws Exception {
043:            }
044:
045:            //--------------------------------------------------------------------------
046:            //---
047:            //--- Service
048:            //---
049:            //--------------------------------------------------------------------------
050:
051:            public Element exec(Element params, ServiceContext context)
052:                    throws Exception {
053:                // Get the MapMerger object from the user session
054:                MapMerger mm = MapUtil.getMapMerger(context);
055:
056:                // Show the start page if no services selected
057:                Element response = new Element("response");
058:                if (mm.size() == 0) // No layers to merge
059:                    response.addContent(new Element("status").setAttribute(
060:                            "empty", "true"));
061:                // throw new JeevesException("empty");
062:                else {
063:                    // Get the current image size from the user session
064:                    int width = MapUtil.getImageWidth(context);
065:                    int height = MapUtil.getImageHeight(context);
066:
067:                    // Merge the images now, because errors in merging have to be reported
068:                    // in the layers frame
069:                    mm.merge(width, height);
070:
071:                    response.addContent(new Element("status").setAttribute(
072:                            "empty", "false"));
073:                    response.addContent(new Element("layersRoot")
074:                            .addContent(layers(params, context)));
075:                    response.addContent(new Element("mapRoot").addContent(map(
076:                            params, context)));
077:                }
078:
079:                return response;
080:            }
081:
082:            public Element layers(Element params, ServiceContext context)
083:                    throws Exception {
084:                // Get the MapMerger object from the user session
085:                MapMerger mm = MapUtil.getMapMerger(context);
086:
087:                if (mm.size() > 0)
088:                    return new Element("response").setContent(mm.toElement());
089:                else
090:                    return null;
091:            }
092:
093:            public Element map(Element params, ServiceContext context)
094:                    throws Exception {
095:                // Get the MapMerger object from the user session
096:                MapMerger mm = MapUtil.getMapMerger(context);
097:
098:                String url = MapUtil.getTempUrl() + "/" + mm.getImageName();
099:
100:                String tool = MapUtil.getTool(context);
101:
102:                return new Element("response").addContent(
103:                        new Element(Constants.URL).setText(url)).addContent(
104:                        new Element("tool").setText(tool)).addContent(
105:                        mm.toElement()).addContent(
106:                        new Element("imageWidth").setText(MapUtil
107:                                .getImageWidth(context)
108:                                + "")).addContent(
109:                        new Element("imageHeight").setText(MapUtil
110:                                .getImageHeight(context)
111:                                + "")).addContent(
112:                        new Element("imageSize").setText((String) context
113:                                .getUserSession().getProperty(
114:                                        Constants.SESSION_SIZE)));
115:            }
116:
117:        }
118:
119:        //=============================================================================
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