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/*
 * Copyright (c) 1997, 2019 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.ws.util;

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

/**
 * Copied from mail.jar.
 */
public class ASCIIUtility {
    // Private constructor so that this class is not instantiated
    private ASCIIUtility() { }


    /**
     * Convert the bytes within the specified range of the given byte
     * array into a signed integer in the given radix . The range extends
     * from start till, but not including end. 

* * Based on java.lang.Integer.parseInt() */ public static int parseInt(byte[] b, int start, int end, int radix) throws NumberFormatException { if (b == null) throw new NumberFormatException("null"); int result = 0; boolean negative = false; int i = start; int limit; int multmin; int digit; if (end > start) { if (b[i] == '-') { negative = true; limit = Integer.MIN_VALUE; i++; } else { limit = -Integer.MAX_VALUE; } multmin = limit / radix; if (i < end) { digit = Character.digit((char)b[i++], radix); if (digit < 0) { throw new NumberFormatException( "illegal number: " + toString(b, start, end) ); } else { result = -digit; } } while (i < end) { // Accumulating negatively avoids surprises near MAX_VALUE digit = Character.digit((char)b[i++], radix); if (digit < 0) { throw new NumberFormatException("illegal number"); } if (result < multmin) { throw new NumberFormatException("illegal number"); } result *= radix; if (result < limit + digit) { throw new NumberFormatException("illegal number"); } result -= digit; } } else { throw new NumberFormatException("illegal number"); } if (negative) { if (i > start + 1) { return result; } else { /* Only got "-" */ throw new NumberFormatException("illegal number"); } } else { return -result; } } /** * Convert the bytes within the specified range of the given byte * array into a String. The range extends from start * till, but not including end.

*/ public static String toString(byte[] b, int start, int end) { int size = end - start; char[] theChars = new char[size]; for (int i = 0, j = start; i < size; ) theChars[i++] = (char)(b[j++]&0xff); return new String(theChars); } public static void copyStream(InputStream is, OutputStream out) throws IOException { int size = 1024; byte[] buf = new byte[size]; int len; while ((len = is.read(buf, 0, size)) != -1) out.write(buf, 0, len); } }





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