ingo@100: /*
ingo@100:  * Copyright (c) 2010 by Intevation GmbH
ingo@100:  *
ingo@100:  * This program is free software under the LGPL (>=v2.1)
ingo@100:  * Read the file LGPL.txt coming with the software for details
ingo@100:  * or visit http://www.gnu.org/licenses/ if it does not exist.
ingo@100:  */
ingo@100: 
teichmann@475: package org.dive4elements.artifactdatabase.rest;
sascha@29: 
teichmann@475: import org.dive4elements.artifacts.ArtifactDatabase.DeferredOutput;
sascha@32: 
sascha@29: import java.io.IOException;
sascha@32: import java.io.OutputStream;
sascha@29: 
sascha@93: import org.restlet.data.MediaType;
sascha@93: 
sascha@93: import org.restlet.representation.OutputRepresentation;
sascha@93: 
sascha@29: /**
sascha@88:  * Special representation to serve the out()-outputs
sascha@88:  * via DeferredOutput efficently .
sascha@77:  * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
sascha@29:  */
sascha@29: public class OutRepresentation
sascha@29: extends      OutputRepresentation
sascha@29: {
sascha@88:     /**
sascha@88:      * The deferred output fetched from ArtifactDatabase.out().
sascha@88:      */
sascha@32:     protected DeferredOutput out;
sascha@29: 
sascha@88:     /**
sascha@88:      * Constructor to create representation with a given MIME type and
sascha@88:      * a deferred output.
sascha@88:      * @param mediaType The MIME type of this representation.
sascha@88:      * @param out The deferred output from the ArtifactDatabase.out() call.
sascha@88:      */
sascha@32:     public OutRepresentation(MediaType mediaType, DeferredOutput out) {
sascha@29:         super(mediaType);
sascha@32:         this.out = out;
sascha@29:     }
sascha@29: 
sascha@88:     /**
sascha@88:      * Overwrites the write(OutputStream) of OutRepresentation to serve
sascha@88:      * the data from the deferred output.
sascha@88:      * @param output the stream where to write the data into.
sascha@88:      * @throws IOException Thrown if an exception occurred while writing
sascha@88:      * the data to the output stream.
sascha@88:      */
sascha@32:     public void write(OutputStream output) throws IOException {
sascha@32:         out.write(output);
sascha@29:     }
sascha@29: }
sascha@88: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :