/*
 * Copyright 2008-2009 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package org.visage.runtime.async;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

/**
 * RemoteTextDocument
 *
 * @author Brian Goetz
 */
public class RemoteTextDocument extends AbstractRemoteResource<String> {

    public static final int BUF_SIZE = 8192;

    public RemoteTextDocument(AsyncOperationListener<String> listener, String url, String method) {
        super(url, method, listener);
    }
    
    public RemoteTextDocument(AsyncOperationListener<String> listener, String url, String method, String outboundContent) {
        super(url, method, outboundContent, listener);
    }    

    protected String processStream(InputStream stream) throws IOException {
        Reader reader = new InputStreamReader(stream);
        // @@@ Might be too large -- is content-length the length of the actual resource, or the encoded length?
        // @@@ What if fileSize is -1?  Will SB freak out? 
        StringBuilder sb;
        if (fileSize == -1)
            sb = new StringBuilder(BUF_SIZE);
        else
            sb = new StringBuilder(fileSize);
        char buf[] = new char[BUF_SIZE];
        while (true) {
            int nRead = reader.read(buf);
            if (nRead == -1)
                break;
            else
                sb.append(buf, 0, nRead);
        }
        return sb.toString();
    }
}