Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 *  eXist Open Source Native XML Database
 *  Copyright (C) 2001-06 The eXist Project
 *  http://exist-db.org
 *
 *  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 library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *  $Id$
 */

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

public class Main {
    /**
     * Escapes characters that are not allowed in various places
     * in XML by replacing all invalid characters with
     * <code>getEscape(c)</code>.
     * 
     * @param buffer The <code>StringBuffer</code> containing
     * the text to escape in place.
     */
    public static void XMLEscape(StringBuffer buffer) {
        if (buffer == null) {
            return;
        }
        char c;
        String escape;
        for (int i = 0; i < buffer.length();) {
            c = buffer.charAt(i);
            escape = getEscape(c);
            if (escape == null) {
                i++;
            } else {
                buffer.replace(i, i + 1, escape);
                i += escape.length();
            }
        }
    }

    /**
     * Escapes characters that are not allowed in various places
     * in XML by replacing all invalid characters with
     * <code>getEscape(c)</code>.
     * 
     * @param in The <code>String</code> containing
     * the text to escape in place.
     */
    public static String XMLEscape(String in) {
        if (in == null) {
            return null;
        }
        final StringBuffer temp = new StringBuffer(in);
        XMLEscape(temp);
        return temp.toString();
    }

    /**
     * Escapes characters that are not allowed in various
     * places in XML.  Characters are replaced by the
     * corresponding entity.  The characters &amp;, &lt;,
     * &gt;, &quot;, and &apos; are escaped.
     * 
     * @param c The character to escape.
     * @return A <code>String</code> representing the
     *    escaped character or null if the character does
     *  not need to be escaped.
     */
    public static String getEscape(char c) {
        switch (c) {
        case '&':
            return "&amp;";
        case '<':
            return "&lt;";
        case '>':
            return "&gt;";
        case '\"':
            return "&quot;";
        case '\'':
            return "&apos;";
        default:
            return null;
        }
    }

    /** Reads an <code>InputStream</code> into a string.
     * @param in The stream to read into a string.
     * @return The stream as a string
     * @throws IOException
     */
    public static String toString(InputStream in) throws IOException {
        if (in == null) {
            return null;
        }
        final Reader reader = new InputStreamReader(in);
        final char[] buffer = new char[100];
        final CharArrayWriter writer = new CharArrayWriter(1000);
        int read;
        while ((read = reader.read(buffer)) > -1)
            writer.write(buffer, 0, read);
        return writer.toString();
    }
}