/**
* Copyright (C) 2007 - 2016 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* If the program is linked with libraries which are licensed under one of
* the following licenses, the combination of the program with the linked
* library is not considered a "derivative work" of the program:
*
* • Apache License, version 2.0
* • Apache Software License, version 1.0
* • GNU Lesser General Public License, version 3
* • Mozilla Public License, versions 1.0, 1.1 and 2.0
* • Common Development and Distribution License (CDDL), version 1.0
*
* Therefore the distribution of the program linked with libraries licensed
* under the aforementioned licenses, is permitted by the copyright holders
* if the distribution is compliant with both the GNU General Public
* License version 2 and the aforementioned licenses.
*
* As an exception to the terms of the GPL, you may copy, modify,
* propagate, and distribute a work formed by combining 52°North WPS
* GeoTools Modules with the Eclipse Libraries, or a work derivative of
* such a combination, even if such copying, modification, propagation, or
* distribution would otherwise violate the terms of the GPL. Nothing in
* this exception exempts you from complying with the GPL in all respects
* for all of the code used other than the Eclipse Libraries. You may
* include this exception and its grant of permissions when you distribute
* 52°North WPS GeoTools Modules. Inclusion of this notice with such a
* distribution constitutes a grant of such permissions. If you do not wish
* to grant these permissions, remove this paragraph from your
* distribution. "52°North WPS GeoTools Modules" means the 52°North WPS
* modules using GeoTools functionality - software licensed under version 2
* or any later version of the GPL, or a work based on such software and
* licensed under the GPL. "Eclipse Libraries" means Eclipse Modeling
* Framework Project and XML Schema Definition software distributed by the
* Eclipse Foundation and licensed under the Eclipse Public License Version
* 1.0 ("EPL"), or a work based on such software and licensed under the EPL.
*
* 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.
*/
package org.n52.wps.io.datahandler.generator;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import org.apache.commons.httpclient.HttpException;
import org.n52.wps.PropertyDocument.Property;
import org.n52.wps.commons.WPSConfig;
import org.n52.wps.commons.XMLUtil;
import org.n52.wps.io.data.GenericFileDataWithGT;
import org.n52.wps.io.data.IData;
import org.n52.wps.io.data.binding.complex.GTRasterDataBinding;
import org.n52.wps.io.data.binding.complex.GTVectorDataBinding;
import org.n52.wps.io.data.binding.complex.GeotiffBinding;
import org.n52.wps.io.data.binding.complex.ShapefileBinding;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class GeoserverWMSGenerator extends AbstractGenerator {
private static Logger LOGGER = LoggerFactory.getLogger(GeoserverWMSGenerator.class);
private String username;
private String password;
private String host;
private String port;
public GeoserverWMSGenerator() {
super();
this.supportedIDataTypes.add(GTRasterDataBinding.class);
this.supportedIDataTypes.add(ShapefileBinding.class);
this.supportedIDataTypes.add(GeotiffBinding.class);
this.supportedIDataTypes.add(GTVectorDataBinding.class);
properties = WPSConfig.getInstance().getPropertiesForGeneratorClass(this.getClass().getName());
for(Property property : properties){
if(property.getName().equalsIgnoreCase("Geoserver_username")){
username = property.getStringValue();
}
if(property.getName().equalsIgnoreCase("Geoserver_password")){
password = property.getStringValue();
}
if(property.getName().equalsIgnoreCase("Geoserver_host")){
host = property.getStringValue();
}
if(property.getName().equalsIgnoreCase("Geoserver_port")){
port = property.getStringValue();
}
}
if(port == null){
port = WPSConfig.getInstance().getWPSConfig().getServer().getHostport();
}
for(String supportedFormat : supportedFormats){
if(supportedFormat.equals("text/xml")){
supportedFormats.remove(supportedFormat);
}
}
}
@Override
public InputStream generateStream(IData data, String mimeType, String schema) throws IOException {
InputStream stream = null;
try {
Document doc = storeLayer(data);
String xmlString = XMLUtil.nodeToString(doc);
stream = new ByteArrayInputStream(xmlString.getBytes("UTF-8"));
} catch(TransformerException e){
LOGGER.error("Error generating WMS output. Reason: ", e);
throw new RuntimeException("Error generating WMS output. Reason: " + e);
} catch (IOException e) {
LOGGER.error("Error generating WMS output. Reason: ", e);
throw new RuntimeException("Error generating WMS output. Reason: " + e);
} catch (ParserConfigurationException e) {
LOGGER.error("Error generating WMS output. Reason: ", e);
throw new RuntimeException("Error generating WMS output. Reason: " + e);
}
return stream;
}
private Document storeLayer(IData coll) throws HttpException, IOException, ParserConfigurationException{
File file = null;
String storeName = "";
if(coll instanceof GTVectorDataBinding){
GTVectorDataBinding gtData = (GTVectorDataBinding) coll;
try {
GenericFileDataWithGT fileData = new GenericFileDataWithGT(gtData.getPayload());
file = fileData.getBaseFile(true);
} catch (IOException e1) {
e1.printStackTrace();
throw new RuntimeException("Error generating shp file for storage in WFS. Reason: " + e1);
}
//zip shp file
String path = file.getAbsolutePath();
String baseName = path.substring(0, path.length() - ".shp".length());
File shx = new File(baseName + ".shx");
File dbf = new File(baseName + ".dbf");
File prj = new File(baseName + ".prj");
File zipped =org.n52.wps.io.IOUtils.zip(file, shx, dbf, prj);
file = zipped;
}
if(coll instanceof GTRasterDataBinding){
GTRasterDataBinding gtData = (GTRasterDataBinding) coll;
GenericFileDataWithGT fileData = new GenericFileDataWithGT(gtData.getPayload(), null);
file = fileData.getBaseFile(true);
}
if(coll instanceof ShapefileBinding){
ShapefileBinding data = (ShapefileBinding) coll;
file = data.getZippedPayload();
}
if(coll instanceof GeotiffBinding){
GeotiffBinding data = (GeotiffBinding) coll;
file = (File) data.getPayload();
}
storeName = file.getName();
storeName = storeName +"_" + UUID.randomUUID();
GeoServerUploader geoserverUploader = new GeoServerUploader(username, password, host, port);
String result = geoserverUploader.createWorkspace();
LOGGER.debug(result);
if(coll instanceof GTVectorDataBinding){
result = geoserverUploader.uploadShp(file, storeName);
}
if(coll instanceof GTRasterDataBinding){
result = geoserverUploader.uploadGeotiff(file, storeName);
}
LOGGER.debug(result);
String capabilitiesLink = "http://"+host+":"+port+"/geoserver/wms?Service=WMS&Request=GetCapabilities&Version=1.1.1";
//String directLink = geoserverBaseURL + "?Service=WMS&Request=GetMap&Version=1.1.0&Layers=N52:"+wmsLayerName+"&WIDTH=300&HEIGHT=300";;
Document doc = createXML("N52:"+storeName, capabilitiesLink);
return doc;
}
private Document createXML(String layerName, String getCapabilitiesLink) throws ParserConfigurationException{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
Document doc = factory.newDocumentBuilder().newDocument();
Element root = doc.createElement("OWSResponse");
root.setAttribute("type", "WMS");
Element resourceIDElement = doc.createElement("ResourceID");
resourceIDElement.appendChild(doc.createTextNode(layerName));
root.appendChild(resourceIDElement);
Element getCapabilitiesLinkElement = doc.createElement("GetCapabilitiesLink");
getCapabilitiesLinkElement.appendChild(doc.createTextNode(getCapabilitiesLink));
root.appendChild(getCapabilitiesLinkElement);
/*
Element directResourceLinkElement = doc.createElement("DirectResourceLink");
directResourceLinkElement.appendChild(doc.createTextNode(getMapRequest));
root.appendChild(directResourceLinkElement);
*/
doc.appendChild(root);
return doc;
}
}