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Commons Codec example source code file (Base64TestData.java)

This example Commons Codec source code file (Base64TestData.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Codec tags/keywords

bj1t7o0a2jkjkvoe4unulzv2tgcc+kanmjrqqbqxljmgjhqaohnzkoma/uiqosvf\n, c3kuios9bj1t7o0a2jkjkvoe4unulzv2tgcc+kanmjrqqbqxljmgjhqaohnzkoma/uiqosvfdnqi\n, decoded, inputstream, inputstream, io, ioexception, ioexception, qoqf92uh/ylbrnsjnn4ss0oa3uubnvonpkb4d9v7ut9atincjrw+wijcml+9kp25\n, random, random, string, string, ubxekbh++u3fbjing/sqxm3iybymz7xt9hws1lucrdq7prwn/ilqwxomeq+kzjso\n, util, y7ybc8wg/nqcimr3lm3tryp+qsgkzdrebfnrk0f5plylfsuelepjs1qdv3fev1ljtiywa3ubvnqj\n

The Commons Codec Base64TestData.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.commons.codec.binary;

import java.io.IOException;
import java.io.InputStream;
import java.util.Random;

/**
 * This random data was encoded by OpenSSL. Java had nothing to do with it. This data helps us test interop between
 * Commons-Codec and OpenSSL. Notice that OpenSSL creates 64 character lines instead of the 76 of Commons-Codec.
 * 
 * @see <a href="http://www.ietf.org/rfc/rfc2045.txt">RFC 2045
 * @author Apache Software Foundation
 * @version $Id $
 * @since 1.4
 */
public class Base64TestData {

    // OpenSSL doesn't include the final \n, but it would be annoying beyond belief
    // to further parameterize commons-codec to support this pointless variation.
    final static String ENCODED_64_CHARS_PER_LINE
            = "9IPNKwUvdLiIAp6ctz12SiQmOGstWyYvSPeevufDhrzaws65voykKjbIj33YWTa9\n"
            + "xA7c/FHypWclrZhQ7onfc3JE93BJ5fT4R9zAEdjbjy1hv4ZYNnET4WJeXMLJ/5p+\n"
            + "qBpTsPpepW8DNVYy1c02/1wyC+kgA6CvRUd9cSr/lt88AEdsTV4GMCn1+EwuAiYd\n"
            + "ivxuzn+cLM8q2jewqlI52tP9J7Cs8vqG71s6+WAELKvm/UovvyaOi+OdMUfjQ0JL\n"
            + "iLkHu6p9OwUgvQqiDKzEv/Augo0dTPZzYGEyCP5GVrle3QQdgciIHnpdd4VUTPGR\n"
            + "UbXeKbh++U3fbJIng/sQXM3IYByMZ7xt9HWS1LUcRdQ7Prwn/IlQWxOMeq+KZJSo\n"
            + "AviWtdserXyHbIEa//hmr4p/j80k0g9q35hq1ayGM9984ALTSaZ8WeyFbZx1CxC/\n"
            + "Qoqf92UH/ylBRnSJNn4sS0oa3uUbNvOnpkB4D9V7Ut9atinCJrw+wiJcMl+9kp25\n"
            + "1IUxBGA4cUxh0eaxk3ODWnwI95EktmWOKwCSP0xjWwIMxDjygwAG5R8fk9H9bVi1\n"
            + "thMavm4nDc4vaNoSE1RnZNYwbiUVlVPM9EclvJWTWd6igWeA0MxHAA8iOM5Vnmqp\n"
            + "/WGM7UDq59rBIdNQCoeTJaAkEtAuLL5zogOa5e+MzVjvB5MYQlOlaaTtQrRApXa5\n"
            + "Z4VfEanu9UK2fi1T8jJPFC2PmXebxp0bnO+VW+bgyEdIIkIQCaZq1MKWC3KuiOS9\n"
            + "BJ1t7O0A2JKJKvoE4UNulzV2TGCC+KAnmjRqQBqXlJmgjHQAoHNZKOma/uIQOsvf\n"
            + "DnqicYdDmfyCYuV89HjA1H8tiDJ85VfsrFHdcbPAoNCpi65awJSHfdPO1NDONOK+\n"
            + "+S7Y0VXUgoYYrBV4Y7YbC8wg/nqcimr3lm3tRyp+QsgKzdREbfNRk0F5PLyLfsUE\n"
            + "lepjs1QdV3fEV1LJtiywA3ubVNQJRxhbYxa/C/Xy2qxpm6vvdL92l3q1ccev35Ic\n"
            + "aOiSx7Im+/GxV2lVKdaOvYVGDD1zBRe6Y2CwQb9p088l3/93qGR5593NCiuPPWcs\n"
            + "DWwUShM1EyW0FNX1F8bnzHnYijoyE/jf4s/l9bBd7yJdRWRCyih2WcypAiOIEkBs\n"
            + "H+dCTgalu8sRDoMh4ZIBBdgHfoZUycLqReQFLZZ4Sl4zSmzt5vQxQFhEKb9+ff/4\n"
            + "rb1KAo6wifengxVfIsa2b5ljXzAqXs7JkPvmC6fa7X4ZZndRokaxYlu3cg8OV+uG\n"
            + "/6YAHZilo8at0OpkkNdNFuhwuGlkBqrZKNUj/gSiYYc06gF/r/z6iWAjpXJRW1qq\n"
            + "3CLZXdZFZ/VrqXeVjtOAu2A=\n";

    final static String ENCODED_76_CHARS_PER_LINE
            = "9IPNKwUvdLiIAp6ctz12SiQmOGstWyYvSPeevufDhrzaws65voykKjbIj33YWTa9xA7c/FHypWcl\n"
            + "rZhQ7onfc3JE93BJ5fT4R9zAEdjbjy1hv4ZYNnET4WJeXMLJ/5p+qBpTsPpepW8DNVYy1c02/1wy\n"
            + "C+kgA6CvRUd9cSr/lt88AEdsTV4GMCn1+EwuAiYdivxuzn+cLM8q2jewqlI52tP9J7Cs8vqG71s6\n"
            + "+WAELKvm/UovvyaOi+OdMUfjQ0JLiLkHu6p9OwUgvQqiDKzEv/Augo0dTPZzYGEyCP5GVrle3QQd\n"
            + "gciIHnpdd4VUTPGRUbXeKbh++U3fbJIng/sQXM3IYByMZ7xt9HWS1LUcRdQ7Prwn/IlQWxOMeq+K\n"
            + "ZJSoAviWtdserXyHbIEa//hmr4p/j80k0g9q35hq1ayGM9984ALTSaZ8WeyFbZx1CxC/Qoqf92UH\n"
            + "/ylBRnSJNn4sS0oa3uUbNvOnpkB4D9V7Ut9atinCJrw+wiJcMl+9kp251IUxBGA4cUxh0eaxk3OD\n"
            + "WnwI95EktmWOKwCSP0xjWwIMxDjygwAG5R8fk9H9bVi1thMavm4nDc4vaNoSE1RnZNYwbiUVlVPM\n"
            + "9EclvJWTWd6igWeA0MxHAA8iOM5Vnmqp/WGM7UDq59rBIdNQCoeTJaAkEtAuLL5zogOa5e+MzVjv\n"
            + "B5MYQlOlaaTtQrRApXa5Z4VfEanu9UK2fi1T8jJPFC2PmXebxp0bnO+VW+bgyEdIIkIQCaZq1MKW\n"
            + "C3KuiOS9BJ1t7O0A2JKJKvoE4UNulzV2TGCC+KAnmjRqQBqXlJmgjHQAoHNZKOma/uIQOsvfDnqi\n"
            + "cYdDmfyCYuV89HjA1H8tiDJ85VfsrFHdcbPAoNCpi65awJSHfdPO1NDONOK++S7Y0VXUgoYYrBV4\n"
            + "Y7YbC8wg/nqcimr3lm3tRyp+QsgKzdREbfNRk0F5PLyLfsUElepjs1QdV3fEV1LJtiywA3ubVNQJ\n"
            + "RxhbYxa/C/Xy2qxpm6vvdL92l3q1ccev35IcaOiSx7Im+/GxV2lVKdaOvYVGDD1zBRe6Y2CwQb9p\n"
            + "088l3/93qGR5593NCiuPPWcsDWwUShM1EyW0FNX1F8bnzHnYijoyE/jf4s/l9bBd7yJdRWRCyih2\n"
            + "WcypAiOIEkBsH+dCTgalu8sRDoMh4ZIBBdgHfoZUycLqReQFLZZ4Sl4zSmzt5vQxQFhEKb9+ff/4\n"
            + "rb1KAo6wifengxVfIsa2b5ljXzAqXs7JkPvmC6fa7X4ZZndRokaxYlu3cg8OV+uG/6YAHZilo8at\n"
            + "0OpkkNdNFuhwuGlkBqrZKNUj/gSiYYc06gF/r/z6iWAjpXJRW1qq3CLZXdZFZ/VrqXeVjtOAu2A=\n";

    final static byte[] DECODED
            = {-12, -125, -51, 43, 5, 47, 116, -72, -120, 2, -98, -100, -73, 61, 118, 74, 36, 38, 56, 107, 45, 91, 38,
            47, 72, -9, -98, -66, -25, -61, -122, -68, -38, -62, -50, -71, -66, -116, -92, 42, 54, -56, -113, 125,
            -40, 89, 54, -67, -60, 14, -36, -4, 81, -14, -91, 103, 37, -83, -104, 80, -18, -119, -33, 115, 114, 68,
            -9, 112, 73, -27, -12, -8, 71, -36, -64, 17, -40, -37, -113, 45, 97, -65, -122, 88, 54, 113, 19, -31, 98,
            94, 92, -62, -55, -1, -102, 126, -88, 26, 83, -80, -6, 94, -91, 111, 3, 53, 86, 50, -43, -51, 54, -1, 92,
            50, 11, -23, 32, 3, -96, -81, 69, 71, 125, 113, 42, -1, -106, -33, 60, 0, 71, 108, 77, 94, 6, 48, 41, -11,
            -8, 76, 46, 2, 38, 29, -118, -4, 110, -50, 127, -100, 44, -49, 42, -38, 55, -80, -86, 82, 57, -38, -45,
            -3, 39, -80, -84, -14, -6, -122, -17, 91, 58, -7, 96, 4, 44, -85, -26, -3, 74, 47, -65, 38, -114, -117,
            -29, -99, 49, 71, -29, 67, 66, 75, -120, -71, 7, -69, -86, 125, 59, 5, 32, -67, 10, -94, 12, -84, -60, -65,
            -16, 46, -126, -115, 29, 76, -10, 115, 96, 97, 50, 8, -2, 70, 86, -71, 94, -35, 4, 29, -127, -56, -120,
            30, 122, 93, 119, -123, 84, 76, -15, -111, 81, -75, -34, 41, -72, 126, -7, 77, -33, 108, -110, 39, -125,
            -5, 16, 92, -51, -56, 96, 28, -116, 103, -68, 109, -12, 117, -110, -44, -75, 28, 69, -44, 59, 62, -68,
            39, -4, -119, 80, 91, 19, -116, 122, -81, -118, 100, -108, -88, 2, -8, -106, -75, -37, 30, -83, 124, -121,
            108, -127, 26, -1, -8, 102, -81, -118, 127, -113, -51, 36, -46, 15, 106, -33, -104, 106, -43, -84, -122,
            51, -33, 124, -32, 2, -45, 73, -90, 124, 89, -20, -123, 109, -100, 117, 11, 16, -65, 66, -118, -97, -9,
            101, 7, -1, 41, 65, 70, 116, -119, 54, 126, 44, 75, 74, 26, -34, -27, 27, 54, -13, -89, -90, 64, 120, 15,
            -43, 123, 82, -33, 90, -74, 41, -62, 38, -68, 62, -62, 34, 92, 50, 95, -67, -110, -99, -71, -44, -123,
            49, 4, 96, 56, 113, 76, 97, -47, -26, -79, -109, 115, -125, 90, 124, 8, -9, -111, 36, -74, 101, -114, 43,
            0, -110, 63, 76, 99, 91, 2, 12, -60, 56, -14, -125, 0, 6, -27, 31, 31, -109, -47, -3, 109, 88, -75, -74,
            19, 26, -66, 110, 39, 13, -50, 47, 104, -38, 18, 19, 84, 103, 100, -42, 48, 110, 37, 21, -107, 83, -52,
            -12, 71, 37, -68, -107, -109, 89, -34, -94, -127, 103, -128, -48, -52, 71, 0, 15, 34, 56, -50, 85, -98,
            106, -87, -3, 97, -116, -19, 64, -22, -25, -38, -63, 33, -45, 80, 10, -121, -109, 37, -96, 36, 18, -48,
            46, 44, -66, 115, -94, 3, -102, -27, -17, -116, -51, 88, -17, 7, -109, 24, 66, 83, -91, 105, -92, -19,
            66, -76, 64, -91, 118, -71, 103, -123, 95, 17, -87, -18, -11, 66, -74, 126, 45, 83, -14, 50, 79, 20, 45,
            -113, -103, 119, -101, -58, -99, 27, -100, -17, -107, 91, -26, -32, -56, 71, 72, 34, 66, 16, 9, -90, 106,
            -44, -62, -106, 11, 114, -82, -120, -28, -67, 4, -99, 109, -20, -19, 0, -40, -110, -119, 42, -6, 4, -31,
            67, 110, -105, 53, 118, 76, 96, -126, -8, -96, 39, -102, 52, 106, 64, 26, -105, -108, -103, -96, -116,
            116, 0, -96, 115, 89, 40, -23, -102, -2, -30, 16, 58, -53, -33, 14, 122, -94, 113, -121, 67, -103, -4,
            -126, 98, -27, 124, -12, 120, -64, -44, 127, 45, -120, 50, 124, -27, 87, -20, -84, 81, -35, 113, -77,
            -64, -96, -48, -87, -117, -82, 90, -64, -108, -121, 125, -45, -50, -44, -48, -50, 52, -30, -66, -7, 46,
            -40, -47, 85, -44, -126, -122, 24, -84, 21, 120, 99, -74, 27, 11, -52, 32, -2, 122, -100, -118, 106, -9,
            -106, 109, -19, 71, 42, 126, 66, -56, 10, -51, -44, 68, 109, -13, 81, -109, 65, 121, 60, -68, -117, 126,
            -59, 4, -107, -22, 99, -77, 84, 29, 87, 119, -60, 87, 82, -55, -74, 44, -80, 3, 123, -101, 84, -44, 9, 71,
            24, 91, 99, 22, -65, 11, -11, -14, -38, -84, 105, -101, -85, -17, 116, -65, 118, -105, 122, -75, 113,
            -57, -81, -33, -110, 28, 104, -24, -110, -57, -78, 38, -5, -15, -79, 87, 105, 85, 41, -42, -114, -67,
            -123, 70, 12, 61, 115, 5, 23, -70, 99, 96, -80, 65, -65, 105, -45, -49, 37, -33, -1, 119, -88, 100, 121,
            -25, -35, -51, 10, 43, -113, 61, 103, 44, 13, 108, 20, 74, 19, 53, 19, 37, -76, 20, -43, -11, 23, -58, -25,
            -52, 121, -40, -118, 58, 50, 19, -8, -33, -30, -49, -27, -11, -80, 93, -17, 34, 93, 69, 100, 66, -54, 40,
            118, 89, -52, -87, 2, 35, -120, 18, 64, 108, 31, -25, 66, 78, 6, -91, -69, -53, 17, 14, -125, 33, -31, -110,
            1, 5, -40, 7, 126, -122, 84, -55, -62, -22, 69, -28, 5, 45, -106, 120, 74, 94, 51, 74, 108, -19, -26, -12,
            49, 64, 88, 68, 41, -65, 126, 125, -1, -8, -83, -67, 74, 2, -114, -80, -119, -9, -89, -125, 21, 95, 34,
            -58, -74, 111, -103, 99, 95, 48, 42, 94, -50, -55, -112, -5, -26, 11, -89, -38, -19, 126, 25, 102, 119,
            81, -94, 70, -79, 98, 91, -73, 114, 15, 14, 87, -21, -122, -1, -90, 0, 29, -104, -91, -93, -58, -83, -48,
            -22, 100, -112, -41, 77, 22, -24, 112, -72, 105, 100, 6, -86, -39, 40, -43, 35, -2, 4, -94, 97, -121, 52,
            -22, 1, 127, -81, -4, -6, -119, 96, 35, -91, 114, 81, 91, 90, -86, -36, 34, -39, 93, -42, 69, 103, -11,
            107, -87, 119, -107, -114, -45, -128, -69, 96};

    // Some utility code to help test chunked reads of the InputStream.

    private final static int SIZE_KEY = 0;
    private final static int LAST_READ_KEY = 1;

    static byte[] streamToBytes(final InputStream in) throws IOException {
        // new byte[7] is obviously quite slow, but helps exercise the code.
        byte[] buf = new byte[7];
        try {
            int[] status = fill(buf, 0, in);
            int size = status[SIZE_KEY];
            int lastRead = status[LAST_READ_KEY];
            while (lastRead != -1) {
                buf = resizeArray(buf);
                status = fill(buf, size, in);
                size = status[SIZE_KEY];
                lastRead = status[LAST_READ_KEY];
            }
            if (buf.length != size) {
                byte[] smallerBuf = new byte[size];
                System.arraycopy(buf, 0, smallerBuf, 0, size);
                buf = smallerBuf;
            }
        }
        finally {
            in.close();
        }
        return buf;
    }

    private static int[] fill(final byte[] buf, final int offset, final InputStream in)
            throws IOException {
        int read = in.read(buf, offset, buf.length - offset);
        int lastRead = read;
        if (read == -1) {
            read = 0;
        }
        while (lastRead != -1 && read + offset < buf.length) {
            lastRead = in.read(buf, offset + read, buf.length - read - offset);
            if (lastRead != -1) {
                read += lastRead;
            }
        }
        return new int[]{offset + read, lastRead};
    }

    private static byte[] resizeArray(final byte[] bytes) {
        byte[] biggerBytes = new byte[bytes.length * 2];
        System.arraycopy(bytes, 0, biggerBytes, 0, bytes.length);
        return biggerBytes;
    }


    /**
     * Returns an encoded and decoded copy of the same random data.
     * 
     * @param size amount of random data to generate and encode
     * @param urlSafe true if encoding be urlSafe
     * @return two byte[] arrays:  [0] = decoded, [1] = encoded 
     */
    static byte[][] randomData(int size, boolean urlSafe) {
        Random r = new Random();
        byte[] decoded = new byte[size];
        r.nextBytes(decoded);
        byte[] encoded = urlSafe ? Base64.encodeBase64URLSafe(decoded) : Base64.encodeBase64(decoded);
        return new byte[][] {decoded, encoded};
    }

    /**
     * Tests the supplied byte[] array to see if it contains the specified byte c.
     *
     * @param bytes byte[] array to test
     * @param c byte to look for
     * @return true if bytes contains c, false otherwise
     */
    static boolean bytesContain(byte[] bytes, byte c) {
        for (int i = 0; i < bytes.length; i++) {
            if (bytes[i] == c) { return true; }
        }
        return false;
    }

}

Other Commons Codec examples (source code examples)

Here is a short list of links related to this Commons Codec Base64TestData.java source code file:

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