/*

 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.sun.xml.internal.messaging.saaj.util;

import java.io.*;

import javax.xml.transform.stream.StreamSource;

/**

 *

 * @author Anil Vijendran

 */

public class JAXMStreamSource extends StreamSource {

    InputStream in;

    Reader reader;

    private static final boolean lazyContentLength;

    static {

        lazyContentLength = SAAJUtil.getSystemBoolean("saaj.lazy.contentlength");

    }

    public JAXMStreamSource(InputStream is) throws IOException {

        if (lazyContentLength) {

            in = is;

        } else if (is instanceof ByteInputStream) {

            this.in = (ByteInputStream) is;

        } else {

            ByteOutputStream bout = null;

            try {

                bout = new ByteOutputStream();

                bout.write(is);

                this.in = bout.newInputStream();

            } finally {

                if (bout != null)

                    bout.close();

            }

        }

    }

    public JAXMStreamSource(Reader rdr) throws IOException {

        if (lazyContentLength) {

            this.reader = rdr;

            return;

        }

        CharWriter cout = new CharWriter();

        char[] temp = new char[1024];

        int len;

        while (-1 != (len = rdr.read(temp)))

            cout.write(temp, 0, len);

        this.reader = new CharReader(cout.getChars(), cout.getCount());

    }

    public InputStream getInputStream() {

        return in;

    }

    public Reader getReader() {

        return reader;

    }

    public void reset() throws IOException {

            if (in != null)

                in.reset();

            if (reader != null)

                reader.reset();

    }

}