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/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
package petascope.wps.server;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.net.URI;
import java.net.URISyntaxException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.antlr.runtime.RecognitionException;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import petascope.wcps.server.core.ProcessCoveragesRequest;
import petascope.wcs.server.exceptions.InputOutputException;
/**
*
* @author Michael Owonibi
*/
public class WpsServer {
private static Logger LOG = LoggerFactory.getLogger(WpsServer.class);
public String request = null;
public WpsServer(HttpServletResponse httpResponse, HttpServletRequest httpRequest) throws URISyntaxException, IOException, InputOutputException, RecognitionException {
if ((httpRequest.getParameter("Request") != null) && httpRequest.getParameter("Request").equalsIgnoreCase("GetCapabilities")) {
GetCapabilities(httpResponse);
}
if ((((httpRequest.getParameter("version") != null) && httpRequest.getParameter("version").equalsIgnoreCase("1.0.0")) || ((httpRequest.getParameter("Version") != null) && httpRequest.getParameter("Version").equalsIgnoreCase("1.0.0")))) {
if ((httpRequest.getParameter("Request") != null) && httpRequest.getParameter("Request").equalsIgnoreCase("DescribeProcess") && (httpRequest.getParameter("identifier") != null) && httpRequest.getParameter("identifier").equalsIgnoreCase("ProcessCoverages")) {
DescribeProcess(httpResponse);
} else if ((httpRequest.getParameter("Request") != null) && httpRequest.getParameter("Request").equalsIgnoreCase("Execute") && (httpRequest.getParameter("identifier") != null) && httpRequest.getParameter("identifier").equalsIgnoreCase("ProcessCoverages")) {
String wpsRequest = httpRequest.getParameter("DataInputs");
wpsRequest = wpsRequest.substring(1, (wpsRequest.length() - 1));
int pos = -1;
pos = wpsRequest.indexOf("=");
if (wpsRequest.substring(0, pos).equalsIgnoreCase("WcpsAbstractSyntax")) {
wpsRequest = wpsRequest.substring(pos + 1, wpsRequest.length());
wpsRequest = ProcessCoveragesRequest.abstractQueryToXmlQuery(wpsRequest);
System.out.println("WPS request is :" + wpsRequest);
request = wpsRequest;
}
}
}
}
public void GetCapabilities(HttpServletResponse httpResponse) throws URISyntaxException, IOException, InputOutputException {
URI GetCapabilitiesURI = this.getClass().getResource("../templates/GetCapabilities.xml").toURI();
String GetCapabilitiesResponse = loadFile(GetCapabilitiesURI);
LOG.info("Executing operation GetCapabilities...");
System.out.println("GetCapabilities Response is " + GetCapabilitiesResponse);
PrintWriter out;
try {
out = httpResponse.getWriter();
httpResponse.setContentType("text/xml; charset=utf-8");
out.write(GetCapabilitiesResponse);
out.flush();
out.close();
} catch (IOException e) {
throw new InputOutputException(e.getMessage(), e);
}
}
public void DescribeProcess(HttpServletResponse httpResponse) throws URISyntaxException, IOException, InputOutputException {
URI DesribeProcessURI = this.getClass().getResource("../templates/DescribeProcess.xml").toURI();
String DescribeProcessResponse = loadFile(DesribeProcessURI);
LOG.info("Executing operation DescribeProcess...");
System.out.println("DescribeProcess Document is " + DescribeProcessResponse);
PrintWriter out;
try {
out = httpResponse.getWriter();
httpResponse.setContentType("text/xml; charset=utf-8");
out.write(DescribeProcessResponse);
out.flush();
out.close();
} catch (IOException e) {
throw new InputOutputException(e.getMessage(), e);
}
}
private String loadFile(URI fileUri) throws IOException {
InputStream is = null;
String contents = null;
try {
LOG.debug("Loading file: " + fileUri);
File f = new File(fileUri);
is = new FileInputStream(f);
contents = IOUtils.toString(is);
} finally {
try {
is.close();
} catch (IOException ex) {
}
}
return contents;
}
}
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