Java InputStream to String inputStreamToStringBuilder(final InputStream inputStream, final String charset)

Description

Copies the stream into the string builder.

License

Open Source License

Parameter

Parameter	Description
inputStream	a parameter

Exception

Parameter	Description
IOException	an exception

Declaration

private static StringBuilder inputStreamToStringBuilder(final InputStream inputStream, final String charset)
        throws IOException 

Method Source Code

//package com.java2s;
/**/*from w w w.  j a  va 2  s  .c om*/
 *
 *  BibSonomy-Web-Common - A blue social bookmark and publication sharing system.
 *
 *  Copyright (C) 2006 - 2011 Knowledge & Data Engineering Group,
 *                            University of Kassel, Germany
 *                            http://www.kde.cs.uni-kassel.de/
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program 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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

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

public class Main {
    private static final String NEWLINE = "\n";
    private static final int MAX_CONTENT_LENGTH = 1 * 1024 * 1024;

    /** Copies the stream into the string builder.
     * 
     * @param inputStream
     * @return
     * @throws IOException
     */
    private static StringBuilder inputStreamToStringBuilder(final InputStream inputStream, final String charset)
            throws IOException {
        final InputStreamReader in;
        /*
         * set charset
         */
        if (charset == null || charset.trim().equals(""))
            in = new InputStreamReader(inputStream);
        else
            in = new InputStreamReader(inputStream, charset);
        /*
         * use buffered reader (we always assume to have text)
         */
        final BufferedReader buf = new BufferedReader(in);
        final StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = buf.readLine()) != null && sb.length() + line.length() < MAX_CONTENT_LENGTH) {
            sb.append(line).append(NEWLINE);
        }
        buf.close();

        return sb;
    }
}

Related

1. inputStreamToString(InputStream is)
2. inputStreamToString(InputStream s)
3. inputStreamToString(InputStream stream)
4. InputStreamToStringArray(InputStream input_stream)
5. inputStreamToStringBuffer(InputStream stream)
6. inputStreamToStringBuilder(InputStream in, int minimumCapacity)
7. inputStreamToText(InputStream inputStream)
8. loadText(InputStream in)
9. loadTextFile(InputStream stream, String encoding, int maxSize, boolean finish)