com.sun.grizzly.jruby.RailsOutputStream Maven / Gradle / Ivy

Go to download
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 *
 * Contributor(s):
 *
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package com.sun.grizzly.jruby;

import com.sun.grizzly.tcp.http11.GrizzlyOutputStream;
import com.sun.grizzly.tcp.http11.GrizzlyResponse;

import java.io.IOException;
import java.io.OutputStream;

/**
 * @author Vivek Pandey
 */
class RailsOutputStream extends OutputStream {

    private final GrizzlyOutputStream gos;
    private final GrizzlyResponse grizzlyResponse;

    public RailsOutputStream(GrizzlyResponse grizzlyResponse) throws IOException {
        this.grizzlyResponse = grizzlyResponse;
        this.grizzlyResponse.reset();
        this.gos = grizzlyResponse.getOutputStream();
    }

    public void write(int b) throws IOException {
        gos.write(b);
    }

    @Override
    public void write(byte b[]) throws IOException {
        gos.write(b);
    }

    private boolean headerParsed = false;

    @Override
    public void write(byte b[], int off, int len) throws IOException {
        if(!headerParsed && ((b[0] >= 65 && b[0] <=90 ) || (b[0]>=97 && b[0] <=122))){
            HttpHeaderParser parser = new HttpHeaderParser(grizzlyResponse);
            int pos = parser.parseHeaders(b, off, len);
            if(grizzlyResponse.getStatus() != 304){
                if(pos <= len) //means we got headers and ok to write the body
                    gos.write(b, pos, len-pos);
                else //something went wrong just write the original
                    gos.write(b, off, len);
            }
            headerParsed = true;
        }else{
            gos.write(b, off, len);
        }
    }

    @Override
    public void flush() throws IOException {
        gos.flush();
    }

    @Override
    public void close() throws IOException {
        gos.close();
    }
}