core/src/main/java/com/att/cadi/util/Split.java

   1 /*******************************************************************************\r
   2  * ============LICENSE_START====================================================\r
   3  * * org.onap.aaf\r
   4  * * ===========================================================================\r
   5  * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.\r
   6  * * ===========================================================================\r
   7  * * Licensed under the Apache License, Version 2.0 (the "License");\r
   8  * * you may not use this file except in compliance with the License.\r
   9  * * You may obtain a copy of the License at\r
  10  * * \r
  11  *  *      http://www.apache.org/licenses/LICENSE-2.0\r
  12  * * \r
  13  *  * Unless required by applicable law or agreed to in writing, software\r
  14  * * distributed under the License is distributed on an "AS IS" BASIS,\r
  15  * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  16  * * See the License for the specific language governing permissions and\r
  17  * * limitations under the License.\r
  18  * * ============LICENSE_END====================================================\r
  19  * *\r
  20  * * ECOMP is a trademark and service mark of AT&T Intellectual Property.\r
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  22  ******************************************************************************/\r
  23 package com.att.cadi.util;\r
  24 \r
  25 /**\r
  26  * Split by Char, optional Trim\r
  27  *\r
  28  * Note: Copied from Inno to avoid linking issues.\r
  29  * Note: I read the String split and Pattern split code, and we can do this more efficiently for a single Character\r
  30  * \r
  31  * 8/20/2015\r
  32  */\r
  33 \r
  34 public class Split {\r
  35           public static String[] split(char c, String value) {\r
  36                   // Count items to preallocate Array (memory alloc is more expensive than counting twice)\r
  37                   int count,idx;\r
  38                   for(count=1,idx=value.indexOf(c);idx>=0;idx=value.indexOf(c,++idx),++count);\r
  39                   String[] rv = new String[count];\r
  40                   if(count==1) {\r
  41                           rv[0]=value;\r
  42                   } else {\r
  43                           int last=0;\r
  44                           count=-1;\r
  45                           for(idx=value.indexOf(c);idx>=0;idx=value.indexOf(c,idx)) {\r
  46                                   rv[++count]=value.substring(last,idx);\r
  47                                   last = ++idx;\r
  48                           }\r
  49                           rv[++count]=value.substring(last);\r
  50                   }\r
  51                   return rv;\r
  52           }\r
  53 \r
  54           public static String[] splitTrim(char c, String value) {\r
  55                   // Count items to preallocate Array (memory alloc is more expensive than counting twice)\r
  56                   int count,idx;\r
  57                   for(count=1,idx=value.indexOf(c);idx>=0;idx=value.indexOf(c,++idx),++count);\r
  58                   String[] rv = new String[count];\r
  59                   if(count==1) {\r
  60                           rv[0]=value.trim();\r
  61                   } else {\r
  62                           int last=0;\r
  63                           count=-1;\r
  64                           for(idx=value.indexOf(c);idx>=0;idx=value.indexOf(c,idx)) {\r
  65                                   rv[++count]=value.substring(last,idx).trim();\r
  66                                   last = ++idx;\r
  67                           }\r
  68                           rv[++count]=value.substring(last).trim();\r
  69                   }\r
  70                   return rv;\r
  71           }\r
  72 \r
  73           public static String[] splitTrim(char c, String value, int size) {\r
  74                   int idx;\r
  75                   String[] rv = new String[size];\r
  76                   if(size==1) {\r
  77                           rv[0]=value.trim();\r
  78                   } else {\r
  79                           int last=0;\r
  80                           int count=-1;\r
  81                           size-=2;\r
  82                           for(idx=value.indexOf(c);idx>=0 && count<size;idx=value.indexOf(c,idx)) {\r
  83                                   rv[++count]=value.substring(last,idx).trim();\r
  84                                   last = ++idx;\r
  85                           }\r
  86                           rv[++count]=value.substring(last).trim();\r
  87                   }\r
  88                   return rv;\r
  89           }\r
  90 \r
  91 }\r