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package es.uji.lsi.wcs.XmlWcsParsing;

/*

 * DescribeCoverage.java

 *

 * Created on 31 de diciembre de 2004, 15:03

 */

import java.util.*;

import java.io.*;

/**

 *

 * @author  jaume

 */

public class DescribeCoverageResponse {

    private String version;

    private String updateSequence;

    private ArrayList coverageOfferingList = new ArrayList();

    /** Creates a new instance of DescribeCoverage */

    public DescribeCoverageResponse(XMLNode node, Capabilities capabilities) {

        fillupDescribeCoverage(node, capabilities);

    }

    public DescribeCoverageResponse(File file, Capabilities capabilities){

        // for debugging purposes only

        try {

            XMLNode node = new XMLNode(file);

            fillupDescribeCoverage(node, capabilities);

        } catch (Exception e){

            System.out.println("Exception: " + e.getMessage());

        }

    }

    public void fillupDescribeCoverage(XMLNode node, Capabilities capabilities){

        try{

            checkDescribeCoverageDocument(node);

            for (int i=0; i<node.getNumSubNodes(); i++){

                XMLNode subnode = node.getSubNode(i);

                if (WCSToolkit.isWCSTab(subnode, "CoverageOffering")) coverageOfferingList.add(new CoverageOffering(subnode, capabilities));

            }        

        } catch (NotAnDescribeCoverageXmlDocumentException e){

            new Error("Unrecognized DescribeCapabilities format");

        }

    }

    public boolean checkDescribeCoverageDocument(XMLNode node) throws NotAnDescribeCoverageXmlDocumentException{

        if (WCSToolkit.isWCSTab(node, "CoverageDescription")){

            version = node.getAttribute("version");

            updateSequence = node.getAttribute("updateSequence");

            return true;

        } else throw new NotAnDescribeCoverageXmlDocumentException();

    }

    public String getVersion(){

        return version;

    }

    public String getUpdateSequence(){

        return updateSequence;

    }

    public ArrayList getCoverageOfferingList(){

        return coverageOfferingList;

    }

    public CoverageOffering getCoverageOffering(String coverage_name){

        // returns the coverage named coverage_name from the list

        Iterator it = coverageOfferingList.iterator();

        while (it.hasNext()){

            CoverageOffering co = (CoverageOffering) it.next();

            if (co.getCoverageOfferingBrief().getName().equals(coverage_name)){

                return co;

            }

        }

        return null;

    }

    public String toString(){

        Iterator it = coverageOfferingList.iterator();

        String s = "";

        while (it.hasNext()){

            s += "\nNext item: "+it.next();

        }

        return "\nDESCRIBE COVERAGE"+

               "\nVersion: "+version+

               "\nUpdate Sequence: "+updateSequence+

               "\nCoverage Offering list: "+s;

    }

}

class NotAnDescribeCoverageXmlDocumentException extends Exception{

    public NotAnDescribeCoverageXmlDocumentException(){

        super();

    }

    public NotAnDescribeCoverageXmlDocumentException(String s){

        super(s);

    }

}