1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
/* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved.
*
* This program and the accompanying materials are made available under
* the terms of the Common Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/cpl-v10.html
*
* $Id: CoverageData.java,v 1.1.1.1 2004/05/09 16:57:31 vlad_r Exp $
*/
package com.vladium.emma.data;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import com.vladium.util.asserts.$assert;
// ----------------------------------------------------------------------------
/**
* @author Vlad Roubtsov, (C) 2003
*/
final class CoverageData implements ICoverageData, Cloneable
{
// public: ................................................................
// TODO: duplicate issue
public Object lock ()
{
return m_coverageMap;
}
public ICoverageData shallowCopy ()
{
final CoverageData _clone;
try
{
_clone = (CoverageData) super.clone ();
}
catch (CloneNotSupportedException cnse)
{
throw new Error (cnse.toString ());
}
final HashMap _coverageMap;
synchronized (lock ())
{
_coverageMap = (HashMap) m_coverageMap.clone ();
}
_clone.m_coverageMap = _coverageMap;
return _clone;
}
public int size ()
{
return m_coverageMap.size ();
}
public DataHolder getCoverage (final ClassDescriptor cls)
{
if (cls == null) throw new IllegalArgumentException ("null input: cls");
return (DataHolder) m_coverageMap.get (cls.getClassVMName ());
}
public void addClass (final boolean [][] coverage, final String classVMName, final long stamp)
{
m_coverageMap.put (classVMName, new DataHolder (coverage, stamp));
}
// IMergeable:
public boolean isEmpty ()
{
return m_coverageMap.isEmpty ();
}
/*
* This method is not MT-safe wrt addClass() etc.
*
* note: rhs entries override current entries if they have different stamps;
* otherwise, the data is merged
*/
public IMergeable merge (final IMergeable rhs)
{
if ((rhs == null) || rhs.isEmpty () || (rhs == this))
return this;
else
{
final CoverageData rhscdata = (CoverageData) rhs; // TODO: redesign so that the cast is not necessary
final Map rhscoverageData = rhscdata.m_coverageMap;
for (Iterator entries = rhscoverageData.entrySet ().iterator (); entries.hasNext (); )
{
final Map.Entry entry = (Map.Entry) entries.next ();
final String classVMName = (String) entry.getKey ();
final DataHolder rhsdata = (DataHolder) entry.getValue ();
// [assertion: rhsdata != null]
final DataHolder data = (DataHolder) m_coverageMap.get (classVMName);
if (data == null)
m_coverageMap.put (classVMName, rhsdata);
else
{
if (rhsdata.m_stamp != data.m_stamp)
m_coverageMap.put (classVMName, rhsdata);
else // merge two runtime profiles
{
final boolean [][] rhscoverage = rhsdata.m_coverage;
final boolean [][] coverage = data.m_coverage;
// [assertion: both coverage and rhscoverage aren't null]
if ($assert.ENABLED) $assert.ASSERT (coverage.length == rhscoverage.length, "coverage.length [" + coverage.length + "] != rhscoverage.length [" + rhscoverage.length + "]");
for (int m = 0, mLimit = coverage.length; m < mLimit; ++ m)
{
final boolean [] rhsmcoverage = rhscoverage [m];
final boolean [] mcoverage = coverage [m];
if (mcoverage == null)
{
if ($assert.ENABLED) $assert.ASSERT (rhsmcoverage == null, "mcoverage == null but rhsmcoverage != null");
// [nothing to merge]
}
else
{
if ($assert.ENABLED) $assert.ASSERT (rhsmcoverage != null, "mcoverage != null but rhsmcoverage == null");
if ($assert.ENABLED) $assert.ASSERT (mcoverage.length == rhsmcoverage.length, "mcoverage.length [" + mcoverage.length + "] != rhsmcoverage.length [" + rhsmcoverage.length + "]");
for (int b = 0, bLimit = mcoverage.length; b < bLimit; ++ b)
{
if (rhsmcoverage [b]) mcoverage [b] = true;
}
}
}
}
}
}
return this;
}
}
// protected: .............................................................
// package: ...............................................................
CoverageData ()
{
m_coverageMap = new HashMap ();
}
static CoverageData readExternal (final DataInput in)
throws IOException
{
final int size = in.readInt ();
final HashMap coverageMap = new HashMap (size);
for (int i = 0; i < size; ++ i)
{
final String classVMName = in.readUTF ();
final long stamp = in.readLong ();
final int length = in.readInt ();
final boolean [][] coverage = new boolean [length][];
for (int c = 0; c < length; ++ c)
{
coverage [c] = DataFactory.readBooleanArray (in);
}
coverageMap.put (classVMName, new DataHolder (coverage, stamp));
}
return new CoverageData (coverageMap);
}
static void writeExternal (final CoverageData cdata, final DataOutput out)
throws IOException
{
final Map coverageMap = cdata.m_coverageMap;
final int size = coverageMap.size ();
out.writeInt (size);
final Iterator entries = coverageMap.entrySet ().iterator ();
for (int i = 0; i < size; ++ i)
{
final Map.Entry entry = (Map.Entry) entries.next ();
final String classVMName = (String) entry.getKey ();
final DataHolder data = (DataHolder) entry.getValue ();
final boolean [][] coverage = data.m_coverage;
out.writeUTF (classVMName);
out.writeLong (data.m_stamp);
final int length = coverage.length;
out.writeInt (length);
for (int c = 0; c < length; ++ c)
{
DataFactory.writeBooleanArray (coverage [c], out);
}
}
}
// private: ...............................................................
private CoverageData (final HashMap coverageMap)
{
if ($assert.ENABLED) $assert.ASSERT (coverageMap != null, "coverageMap is null");
m_coverageMap = coverageMap;
}
private /*final*/ HashMap /* String(classVMName) -> DataHolder */ m_coverageMap; // never null
} // end of class
// ----------------------------------------------------------------------------
|
