| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| SqlSplitter |
|
| 13.0;13 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 3 | * or more contributor license agreements. See the NOTICE file | |
| 4 | * distributed with this work for additional information | |
| 5 | * regarding copyright ownership. The ASF licenses this file | |
| 6 | * to you under the Apache License, Version 2.0 (the | |
| 7 | * "License"); you may not use this file except in compliance | |
| 8 | * with the License. You may obtain a copy of the License at | |
| 9 | * | |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 11 | * | |
| 12 | * Unless required by applicable law or agreed to in writing, | |
| 13 | * software distributed under the License is distributed on an | |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 15 | * KIND, either express or implied. See the License for the | |
| 16 | * specific language governing permissions and limitations | |
| 17 | * under the License. | |
| 18 | */ | |
| 19 | ||
| 20 | package org.kuali.db; | |
| 21 | ||
| 22 | import org.apache.commons.lang.StringUtils; | |
| 23 | ||
| 24 | /** | |
| 25 | * Utility class to split a long sql batch script into single SQL commands. | |
| 26 | */ | |
| 27 | 0 | public class SqlSplitter { |
| 28 | /** | |
| 29 | * Value indicating the sql has no end-delimiter like i.e. semicolon | |
| 30 | */ | |
| 31 | public static final int NO_END = -1; | |
| 32 | ||
| 33 | /** | |
| 34 | * Check if the given sql line contains an end of command ';' Please note that we do <em>not</em> fully parse the | |
| 35 | * SQL, so if we get a malformed statement, we cannot detect it. | |
| 36 | * | |
| 37 | * @param line | |
| 38 | * to parse | |
| 39 | * @param delimiter | |
| 40 | * which should be used to split SQL commands | |
| 41 | * @return position after the end character if the given line contains the end of a SQL script, | |
| 42 | * {@value SqlSplitter#NO_END} if it doesn't contain an end char. | |
| 43 | */ | |
| 44 | public static int containsSqlEnd(String line, String delimiter) { | |
| 45 | // / * * / comments | |
| 46 | 0 | boolean isComment = false; |
| 47 | ||
| 48 | 0 | boolean isAlphaDelimiter = StringUtils.isAlpha(delimiter); |
| 49 | ||
| 50 | 0 | if (line == null || line.length() == 0) { |
| 51 | 0 | return NO_END; |
| 52 | } | |
| 53 | ||
| 54 | 0 | int pos = 0; |
| 55 | ||
| 56 | do { | |
| 57 | 0 | if (isComment) { |
| 58 | 0 | if (line.startsWith("*/", pos)) { |
| 59 | 0 | isComment = false; |
| 60 | } else { | |
| 61 | 0 | pos++; |
| 62 | 0 | continue; |
| 63 | } | |
| 64 | } | |
| 65 | ||
| 66 | 0 | if (line.startsWith("/*", pos)) { |
| 67 | 0 | isComment = true; |
| 68 | 0 | pos += 2; |
| 69 | 0 | continue; |
| 70 | } | |
| 71 | ||
| 72 | 0 | if (line.startsWith("--", pos)) { |
| 73 | 0 | return NO_END; |
| 74 | } | |
| 75 | ||
| 76 | 0 | if (line.startsWith("'", pos) || line.startsWith("\"", pos)) { |
| 77 | 0 | String quoteChar = "" + line.charAt(pos); |
| 78 | 0 | String quoteEscape = "\\" + quoteChar; |
| 79 | 0 | pos++; |
| 80 | ||
| 81 | 0 | if (line.length() <= pos) { |
| 82 | 0 | return NO_END; |
| 83 | } | |
| 84 | ||
| 85 | do { | |
| 86 | 0 | if (line.startsWith(quoteEscape, pos)) { |
| 87 | 0 | pos += 2; |
| 88 | } | |
| 89 | 0 | } while (!line.startsWith(quoteChar, pos++)); |
| 90 | ||
| 91 | 0 | continue; |
| 92 | } | |
| 93 | ||
| 94 | 0 | if (line.startsWith(delimiter, pos)) { |
| 95 | 0 | if (isAlphaDelimiter) { |
| 96 | // check if delimiter is at start or end of line, surrounded | |
| 97 | // by non-alpha character | |
| 98 | 0 | if ((pos == 0 || !isAlpha(line.charAt(pos - 1))) && (line.length() == pos + delimiter.length() || !isAlpha(line.charAt(pos + delimiter.length())))) { |
| 99 | 0 | return pos + delimiter.length(); |
| 100 | } | |
| 101 | } else { | |
| 102 | 0 | return pos + delimiter.length(); |
| 103 | } | |
| 104 | } | |
| 105 | ||
| 106 | 0 | pos++; |
| 107 | ||
| 108 | 0 | } while (line.length() >= pos); |
| 109 | ||
| 110 | 0 | return NO_END; |
| 111 | } | |
| 112 | ||
| 113 | /** | |
| 114 | * @param c | |
| 115 | * the char to check | |
| 116 | * @return <code>true</code> if the given character is either a lower or an upperchase alphanumerical character | |
| 117 | */ | |
| 118 | private static boolean isAlpha(char c) { | |
| 119 | 0 | return Character.isUpperCase(c) || Character.isLowerCase(c); |
| 120 | } | |
| 121 | ||
| 122 | } |