jars/icu4j-4_2_1-src/src/com/ibm/icu/dev/test/perf/RBBIPerf.java

   1 /*\r
   2 **********************************************************************\r
   3 * Copyright (c) 2002-2004, International Business Machines\r
   4 * Corporation and others.  All Rights Reserved.\r
   5 **********************************************************************\r
   6 */\r
   7 package com.ibm.icu.dev.test.perf;\r
   8 import com.ibm.icu.text.*;\r
   9 import java.io.FileInputStream;\r
  10 import java.io.InputStream;\r
  11 import java.io.InputStreamReader;\r
  12 import java.io.IOException;\r
  13 import java.text.BreakIterator;\r
  14 \r
  15 /**\r
  16  * A class for testing UnicodeSet performance.\r
  17  *\r
  18  * @author Alan Liu\r
  19  * @since ICU 2.4\r
  20  */\r
  21 public class RBBIPerf extends PerfTest {\r
  22 \r
  23     String                  dataFileName;\r
  24     RuleBasedBreakIterator  bi;\r
  25     BreakIterator           jdkbi;\r
  26     String                  testString;\r
  27 \r
  28     public static void main(String[] args) throws Exception {\r
  29         new RBBIPerf().run(args);\r
  30     }\r
  31 \r
  32     protected void setup(String[] args) {\r
  33         // We only take one argument, the pattern\r
  34         if (args.length != 2) {\r
  35             throw new RuntimeException("RBBITest params:  data_file_name break_iterator_type ");\r
  36         }\r
  37 \r
  38         try {\r
  39             dataFileName = args[0];\r
  40             StringBuffer  testFileBuf = new StringBuffer();\r
  41             InputStream is = new FileInputStream(dataFileName);\r
  42             InputStreamReader isr = new InputStreamReader(is, "UTF-8");           \r
  43             int c;\r
  44             for (;;) {\r
  45                 c = isr.read();\r
  46                 if (c < 0) {\r
  47                     break;\r
  48                 }\r
  49                 UTF16.append(testFileBuf, c);\r
  50             }\r
  51             testString = testFileBuf.toString();\r
  52         }\r
  53         catch (IOException e) {\r
  54             throw new RuntimeException(e.toString());   \r
  55         }\r
  56         \r
  57         if (args.length >= 2) {\r
  58             if (args[1].equals("char")) {\r
  59                 bi  = (RuleBasedBreakIterator)com.ibm.icu.text.BreakIterator.getCharacterInstance();  \r
  60             } else if (args[1].equals("word")) {\r
  61                 bi  = (RuleBasedBreakIterator)com.ibm.icu.text.BreakIterator.getWordInstance();\r
  62             } else if (args[1].equals("line")) {\r
  63                 bi  = (RuleBasedBreakIterator)com.ibm.icu.text.BreakIterator.getLineInstance();\r
  64             } else if (args[1].equals("jdkline")) {\r
  65                 jdkbi  = BreakIterator.getLineInstance();\r
  66             }\r
  67         }\r
  68         if (bi!=null ) {\r
  69             bi.setText(testString);\r
  70         }\r
  71         if (jdkbi != null) {\r
  72             jdkbi.setText(testString);   \r
  73         }\r
  74         \r
  75     }\r
  76 \r
  77     \r
  78     \r
  79     PerfTest.Function testRBBINext() {\r
  80         return new PerfTest.Function() {\r
  81             \r
  82             public void call() {\r
  83                 int n;\r
  84                 if (bi != null) {\r
  85                     n = bi.first();\r
  86                     for (; n != BreakIterator.DONE; n=bi.next()) {\r
  87                     }   \r
  88                 } else {\r
  89                     n = jdkbi.first();\r
  90                     for (; n != BreakIterator.DONE; n=jdkbi.next()) {\r
  91                     }   \r
  92                 }\r
  93             }\r
  94         \r
  95             \r
  96             public long getOperationsPerIteration() {\r
  97                 int n;\r
  98                 int count = 0;\r
  99                 if (bi != null) {\r
 100                     for (n=bi.first(); n != BreakIterator.DONE; n=bi.next()) {\r
 101                         count++;\r
 102                     }\r
 103                 } else {                  \r
 104                     for (n=jdkbi.first(); n != BreakIterator.DONE; n=jdkbi.next()) {\r
 105                         count++;\r
 106                     }\r
 107                 }\r
 108                 return count;\r
 109             }\r
 110         };\r
 111     }\r
 112     \r
 113     \r
 114     PerfTest.Function testRBBIPrevious() {\r
 115         return new PerfTest.Function() {\r
 116             \r
 117             public void call() {\r
 118                 bi.first();\r
 119                 int n=0;\r
 120                 for (n=bi.last(); n != BreakIterator.DONE; n=bi.previous()) {\r
 121                 }   \r
 122             }\r
 123             \r
 124             \r
 125             public long getOperationsPerIteration() {\r
 126                 int n;\r
 127                 int count = 0;\r
 128                 for (n=bi.last(); n != BreakIterator.DONE; n=bi.previous()) {\r
 129                     count++;\r
 130                 }   \r
 131                 return count;\r
 132             }\r
 133         };\r
 134     }\r
 135 \r
 136 \r
 137     PerfTest.Function testRBBIIsBoundary() {\r
 138         return new PerfTest.Function() {\r
 139             \r
 140             public void call() {\r
 141                 int n=testString.length();\r
 142                 int i;\r
 143                 for (i=0; i<n; i++) {\r
 144                     bi.isBoundary(i);\r
 145                 }   \r
 146             }\r
 147             \r
 148             public long getOperationsPerIteration() {\r
 149                 int n = testString.length();\r
 150                 return n;\r
 151             }\r
 152         };\r
 153     }\r
 154 \r
 155 \r
 156  \r
 157 }\r