MySQL 5.6.14 Source Code Document
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TwsLoad.java
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19 
20 package com.mysql.cluster.benchmark.tws;
21 
22 import java.io.PrintWriter;
23 
24 
25 abstract class TwsLoad {
26 
27  // console
28  static protected final PrintWriter out = TwsDriver.out;
29  static protected final PrintWriter err = TwsDriver.err;
30 
31  // resources
32  protected final TwsDriver driver;
33  protected String descr;
34 
35  protected MetaData metaData;
36 
37  protected static String fixedStr = "xxxxxxxxxx"
38  + "xxxxxxxxxx"
39  + "xxxxxxxxxx"
40  + "xxxxxxxxxx"
41  + "xxxxxxxxxx"
42  + "xxxxxxxxxx"
43  + "xxxxxxxxxx"
44  + "xxxxxxxxxx"
45  + "xxxxxxxxxx"
46  + "xxxxxxxxxx"
47  + "xxxxxxxxxx"
48  + "xxxxxxxxxx"
49  + "xxxxxxxxxx"
50  + "xxxxxxxxxx"
51  + "xxxxxxxxxx"
52  + "xxxxxxxxxx"
53  + "xxxxxxxxxx"
54  + "xxxxxxxxxx"
55  + "xxxxxxxxxx"
56  + "xxxxxxxxxx"
57  + "xxxxxxxxxx"
58  + "xxxxxxxxxx"
59  + "xxxxxxxxxx";
60 
61  public TwsLoad(TwsDriver driver, MetaData md) {
62  this.driver = driver;
63  this.metaData = md;
64  }
65 
66  // ----------------------------------------------------------------------
67  // intializers/finalizers
68  // ----------------------------------------------------------------------
69 
70  abstract protected void initProperties();
71  abstract protected void printProperties();
72 
73  public String getDescriptor() {
74  return descr;
75  }
76 
77  public void init() throws Exception {
78  initProperties();
79  printProperties();
80  }
81 
82  public void close() throws Exception {
83  }
84 
85  public MetaData getMetaData() {
86  return metaData;
87  }
88 
89  // ----------------------------------------------------------------------
90  // benchmark operations
91  // ----------------------------------------------------------------------
92 
93  abstract public void runOperations() throws Exception;
94 
95  // reports an error if a condition is not met
96  static protected final void verify(boolean cond) {
97  //assert (cond);
98  if (!cond)
99  throw new RuntimeException("data verification failed.");
100  }
101 
102  static protected final void verify(int exp, int act) {
103  if (exp != act)
104  throw new RuntimeException("data verification failed:"
105  + " expected = " + exp
106  + ", actual = " + act);
107  }
108 
109  static protected final void verify(String exp, String act) {
110  if ((exp == null && act != null)
111  || (exp != null && !exp.equals(act)))
112  throw new RuntimeException("data verification failed:"
113  + " expected = '" + exp + "'"
114  + ", actual = '" + act + "'");
115  }
116 
117  // ----------------------------------------------------------------------
118  // datastore operations
119  // ----------------------------------------------------------------------
120 
121  abstract public void initConnection() throws Exception;
122  abstract public void closeConnection() throws Exception;
123  //abstract public void clearPersistenceContext() throws Exception;
124  //abstract public void clearData() throws Exception;
125 }