Coverage Report - org.codehaus.mojo.sql.SqlSplitter
 
Classes in this File Line Coverage Branch Coverage Complexity
SqlSplitter
0%
0/36
0%
0/40
13
 
 1  
 package org.codehaus.mojo.sql;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  * http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import org.codehaus.plexus.util.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)))
 99  
                             && (line.length() == pos + delimiter.length() || !isAlpha(line.charAt(pos
 100  
                                     + delimiter.length())))) {
 101  0
                         return pos + delimiter.length();
 102  
                     }
 103  
                 } else {
 104  0
                     return pos + delimiter.length();
 105  
                 }
 106  
             }
 107  
 
 108  0
             pos++;
 109  
 
 110  0
         } while (line.length() >= pos);
 111  
 
 112  0
         return NO_END;
 113  
     }
 114  
 
 115  
     /**
 116  
      * @param c
 117  
      *            the char to check
 118  
      * @return <code>true</code> if the given character is either a lower or an upperchase alphanumerical character
 119  
      */
 120  
     private static boolean isAlpha(char c) {
 121  0
         return Character.isUpperCase(c) || Character.isLowerCase(c);
 122  
     }
 123  
 
 124  
 }