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/*
 * This file is part of %PACKAGENAME%.
 *
 * %PACKAGENAME% is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * %PACKAGENAME% 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with %PACKAGENAME%. If not, see <http://www.gnu.org/licenses/>.
 *
 * For more information please see <http://www.%PACKAGENAME%.org>
 * or contact Peter Baumann via <baumann@rasdaman.com>.
 *
 * Copyright 2009 Jacobs University Bremen, Peter Baumann.
 */

package wcs.server.cli;

import wcs.server.core.executeGetCapabilities;
import wcs.server.core.WCSException;
import wcs.server.core.convertGetCoverage;
import wcs.server.core.executeDescribeCoverage;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Unmarshaller;
import net.opengis.ows.v_1_0_0.ExceptionReport;
import net.opengis.wcs.v_1_1_0.Capabilities;
import net.opengis.wcs.v_1_1_0.CoverageDescriptions;
import net.opengis.wcs.v_1_1_0.DescribeCoverage;
import net.opengis.wcs.v_1_1_0.GetCapabilities;
import net.opengis.wcs.v_1_1_0.GetCoverage;
import wcs.server.core.ProcessCoverage;

/**
 * Command Line Interface class, for testing the WCS Server operation
 * Converts an WCS XML input file into a WCPS XML input file.<br />
 * Settings are read from the file "input-output.txt", in the current folder.
 */
public class CLI {

    private static final String settingsFile = "input-output.txt";

    private static String inputFile;
    private static String outputFile;
	private static String metadataSettingsFile;
    private static Boolean ok;
    private static Boolean printOutput;
    private static Boolean printLog = true;

    public static void log(String msg)
    {
        if (printLog)
            System.out.println(msg);
    }

    public static boolean init()
    {
        ok = true;
        printOutput = true;

        Properties set = new Properties();
        try {
            set.load(new FileInputStream(settingsFile));
        } catch (IOException ex) {
            ex.printStackTrace();
            ok = false;
        }

        inputFile = set.getProperty("inputFile");
        outputFile = set.getProperty("outputFile");
		metadataSettingsFile = set.getProperty("metadataSettingsFile");
        printOutput = Boolean.parseBoolean(set.getProperty("printOutputFile"));
        printLog = Boolean.parseBoolean(set.getProperty("printLogMessages"));

        return ok;
    }

    /**
     * Converts a WCS XML input file into a WCPS XML input file
     * @param args the command line arguments
     */
    public static void main(String[] args)
    {
        if ( ! init())
            return;

        try
        {
             // read the input XML
             log(">>> Reading the input XML file ... ");
             JAXBContext context = JAXBContext.newInstance("net.opengis.wcs.v_1_1_0");
             Unmarshaller unmarshaller = context.createUnmarshaller() ;
             Object xml = unmarshaller.unmarshal(new FileInputStream(inputFile));
             // Find out which class to execute ...
             log(">>> It is a " + xml.getClass().getSimpleName() + " request.");
             if (xml instanceof GetCoverage)
             {
                 //Convert the WCS into WCPS
                 log(">>> Converting to WCPS ... please wait");
                 GetCoverage wcs = (GetCoverage) xml;
                 ProcessCoverage wcps = new convertGetCoverage(wcs, metadataSettingsFile).get();
                 // Write the output WCPS request
                 try {
                    log(">>> Writing the WCPS XML request");
                    javax.xml.bind.JAXBContext jaxbCtx = javax.xml.bind.JAXBContext.newInstance(wcps.getClass().getPackage().getName());
                    javax.xml.bind.Marshaller marshaller = jaxbCtx.createMarshaller();
                    marshaller.setProperty(javax.xml.bind.Marshaller.JAXB_ENCODING, "UTF-8"); //NOI18N
                    marshaller.setProperty(javax.xml.bind.Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
                    if (printOutput)
                        marshaller.marshal(wcps, System.out);
                    marshaller.marshal(wcps, new FileOutputStream(outputFile));
                } catch (javax.xml.bind.JAXBException ex) {
                    // XXXTODO Handle exception
                    java.util.logging.Logger.getLogger("global").log(java.util.logging.Level.SEVERE, null, ex); //NOI18N
                    ex.printStackTrace();
                }
             }
             else
             if (xml instanceof GetCapabilities)
             {
                 log(">>> Compiling data into XML format for GetCapabilities ... ");
                 GetCapabilities input = (GetCapabilities) xml;
                 Capabilities cap = new executeGetCapabilities(input, metadataSettingsFile).get();
                 // Write the output file (WCS)
                 try {
                     javax.xml.bind.JAXBContext jaxbCtx = javax.xml.bind.JAXBContext.newInstance(cap.getClass().getPackage().getName());
                     javax.xml.bind.Marshaller marshaller = jaxbCtx.createMarshaller();
                     marshaller.setProperty(javax.xml.bind.Marshaller.JAXB_ENCODING, "UTF-8"); //NOI18N
                     marshaller.setProperty(javax.xml.bind.Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
                     if (printOutput)
                        marshaller.marshal(cap, System.out);
                    marshaller.marshal(cap, new FileOutputStream(outputFile));

                 } catch (javax.xml.bind.JAXBException ex) {
                     // XXXTODO Handle exception
                     java.util.logging.Logger.getLogger("global").log(java.util.logging.Level.SEVERE, null, ex); //NOI18N
                     ex.printStackTrace();
                 }
             }
             else
             if (xml instanceof DescribeCoverage)
             {
                 log(">>> Querying the WCPS architecture for the details on this coverage ...");
                 DescribeCoverage input = (DescribeCoverage) xml;
                 CoverageDescriptions output = new executeDescribeCoverage(input, metadataSettingsFile).get();
                 // Write the output file (WCS)
                 try {
                     javax.xml.bind.JAXBContext jaxbCtx = javax.xml.bind.JAXBContext.newInstance(output.getClass().getPackage().getName());
                     javax.xml.bind.Marshaller marshaller = jaxbCtx.createMarshaller();
                     marshaller.setProperty(javax.xml.bind.Marshaller.JAXB_ENCODING, "UTF-8"); //NOI18N
                     marshaller.setProperty(javax.xml.bind.Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
                     if (printOutput)
                        marshaller.marshal(output, System.out);
                    marshaller.marshal(output, new FileOutputStream(outputFile));
                 } catch (javax.xml.bind.JAXBException ex) {
                     // XXXTODO Handle exception
                     java.util.logging.Logger.getLogger("global").log(java.util.logging.Level.SEVERE, null, ex); //NOI18N
                     ex.printStackTrace();
                 }
             }
             else
                 throw new Exception("ERROR ! Unrecognized request type " + xml.getClass().getSimpleName());
        }
        catch (WCSException e)
        {
            ExceptionReport report = e.getReport();
            try {
                javax.xml.bind.JAXBContext jaxbCtx = javax.xml.bind.JAXBContext.newInstance(report.getClass().getPackage().getName());
                javax.xml.bind.Marshaller marshaller = jaxbCtx.createMarshaller();
                marshaller.setProperty(javax.xml.bind.Marshaller.JAXB_ENCODING, "UTF-8"); //NOI18N
                marshaller.setProperty(javax.xml.bind.Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
                if (printOutput)
                        marshaller.marshal(report, System.err);
                marshaller.marshal(report, new FileOutputStream(outputFile));
            } catch (javax.xml.bind.JAXBException ex) {
                // XXXTODO Handle exception
                java.util.logging.Logger.getLogger("global").log(java.util.logging.Level.SEVERE, null, ex); //NOI18N
                ex.printStackTrace();
            }
            catch (Exception e2)
            {
                    e2.printStackTrace();
            }
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        log(">>> Done !");

    }


}