| /* |
| * 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.tika.parser.microsoft.onenote; |
| |
| |
| import java.nio.charset.StandardCharsets; |
| import java.util.Arrays; |
| import java.util.Locale; |
| |
| import org.apache.tika.utils.StringUtils; |
| |
| class GUID implements Comparable<GUID> { |
| int[] guid; |
| |
| public GUID(int[] guid) { |
| this.guid = guid; |
| } |
| |
| /** |
| * Converts a GUID of format: {AAAAAAAA-BBBB-CCCC-DDDD-EEEEEEEEEEEE} (in bytes) to a GUID |
| * object. |
| * |
| * @param guid The bytes that contai string in UTF-16 format of {AAAAAAAA-BBBB-CCCC-DDDD |
| * -EEEEEEEEEEEE} |
| * @return GUID object parsed from guid bytes. |
| */ |
| public static GUID fromCurlyBraceUTF16Bytes(byte[] guid) { |
| int[] intGuid = new int[16]; |
| String utf16Str = new String(guid, StandardCharsets.UTF_16LE).replaceAll("\\{", "") |
| .replaceAll("-", "").replaceAll("}", ""); |
| for (int i = 0; i < utf16Str.length(); i += 2) { |
| intGuid[i / 2] = |
| Integer.parseUnsignedInt("" + utf16Str.charAt(i) + utf16Str.charAt(i + 1), 16); |
| } |
| return new GUID(intGuid); |
| } |
| |
| public static int memcmp(int[] b1, int[] b2, int sz) { |
| for (int i = 0; i < sz; i++) { |
| if (b1[i] != b2[i]) { |
| if ((b1[i] >= 0 && b2[i] >= 0) || (b1[i] < 0 && b2[i] < 0)) { |
| return b1[i] - b2[i]; |
| } |
| if (b1[i] < 0 && b2[i] >= 0) { |
| return 1; |
| } |
| if (b2[i] < 0 && b1[i] >= 0) { |
| return -1; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| public static GUID nil() { |
| return new GUID(new int[16]); |
| } |
| |
| @Override |
| public int compareTo(GUID o) { |
| return memcmp(guid, o.guid, 16); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| GUID guid1 = (GUID) o; |
| return Arrays.equals(guid, guid1.guid); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Arrays.hashCode(guid); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("{"); |
| for (int i = 0; i < 4; ++i) { |
| sb.append(StringUtils.leftPad(Integer.toHexString(guid[i]), 2, '0')); |
| } |
| sb.append("-"); |
| for (int i = 4; i < 6; ++i) { |
| sb.append(StringUtils.leftPad(Integer.toHexString(guid[i]), 2, '0')); |
| } |
| sb.append("-"); |
| for (int i = 6; i < 8; ++i) { |
| sb.append(StringUtils.leftPad(Integer.toHexString(guid[i]), 2, '0')); |
| } |
| sb.append("-"); |
| for (int i = 8; i < 10; ++i) { |
| sb.append(StringUtils.leftPad(Integer.toHexString(guid[i]), 2, '0')); |
| } |
| sb.append("-"); |
| for (int i = 10; i < 16; ++i) { |
| sb.append(StringUtils.leftPad(Integer.toHexString(guid[i]), 2, '0')); |
| } |
| sb.append("}"); |
| return sb.toString().toUpperCase(Locale.US); |
| } |
| |
| public int[] getGuid() { |
| return guid; |
| } |
| |
| public GUID setGuid(int[] guid) { |
| this.guid = guid; |
| return this; |
| } |
| |
| public String getGuidString() { |
| return guid.toString(); |
| } |
| } |