CoverageDelegateHandler.java

/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
 * This code is licensed under the GPL 2.0 license, availible at the root
 * application directory.
 */
package org.geoserver.wcs.response;

import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
import java.io.OutputStream;

import javax.activation.DataContentHandler;
import javax.activation.DataSource;

import org.vfny.geoserver.wcs.responses.CoverageResponseDelegate;

/**
 * A data handler for the fake "geoserver/coverageDelegate" mime type. Uses a
 * {@link CoverageResponseDelegate} to determine the actual mime type and to
 * encode the contents
 * @author Andrea Aime - TOPP
 */
public class CoverageDelegateHandler implements DataContentHandler {

    public Object getContent(DataSource source) throws IOException {
        throw new UnsupportedOperationException("This handler is not able to work on the parsing side");
    }

    public Object getTransferData(DataFlavor flavor, DataSource source)
            throws UnsupportedFlavorException, IOException {
        throw new UnsupportedOperationException("This handler is not able to work on the parsing side");
    }

    public DataFlavor[] getTransferDataFlavors() {
        throw new UnsupportedOperationException("This handler is not able to work on the parsing side");
    }

    public void writeTo(Object value, String mimeType, OutputStream os) throws IOException {
        CoverageResponseDelegate delegate = (CoverageResponseDelegate) value;
        delegate.encode(os);
        os.flush();
    }

}