Source Code Cross Referenced for ConfigAttributor.java in  » Code-Analyzer » javapathfinder » gov » nasa » jpf » jvm » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » Code Analyzer » javapathfinder » gov.nasa.jpf.jvm 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        //
002:        // Copyright (C) 2005 United States Government as represented by the
003:        // Administrator of the National Aeronautics and Space Administration
004:        // (NASA).  All Rights Reserved.
005:        // 
006:        // This software is distributed under the NASA Open Source Agreement
007:        // (NOSA), version 1.3.  The NOSA has been approved by the Open Source
008:        // Initiative.  See the file NOSA-1.3-JPF at the top of the distribution
009:        // directory tree for the complete NOSA document.
010:        // 
011:        // THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
012:        // KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
013:        // LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
014:        // SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
015:        // A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
016:        // THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
017:        // DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
018:        //
019:        //
020:
021:        package gov.nasa.jpf.jvm;
022:
023:        import java.io.BufferedReader;
024:        import java.io.FileNotFoundException;
025:        import java.io.FileReader;
026:        import java.io.IOException;
027:        import java.util.ArrayList;
028:        import java.util.Iterator;
029:        import java.util.List;
030:        import java.util.regex.Matcher;
031:        import java.util.regex.Pattern;
032:        import org.apache.bcel.classfile.JavaClass;
033:        import org.apache.bcel.classfile.Method;
034:
035:        /**
036:         * A configuration file-driven attributor so that we can tailor JPF's
037:         * attributor based on the application under test.
038:         *
039:         * The input file looks like:
040:         *   # This is a comment
041:         *   [atomic]
042:         *   <class regex> <method regex> (true|false)
043:         *   ...
044:         *   [relevance]
045:         *   <class regex> <method regex> (always|never|runnables|sync)
046:         *   ...
047:         *
048:         * @author Owen O'Malley
049:         */
050:        public class ConfigAttributor extends DefaultAttributor {
051:
052:            public ConfigAttributor() {
053:                try {
054:                    parse("jpf-attributes");
055:                } catch (FileNotFoundException e) {
056:                } catch (IOException e) {
057:                    System.err.println("IO exception reading attribute file: "
058:                            + e);
059:                    System.err.println("Ignoring file");
060:                    relevance_rules.clear();
061:                    atomic_rules.clear();
062:                }
063:            }
064:
065:            public boolean isMethodAtomic(JavaClass jc, Method mth,
066:                    String uniqueName) {
067:                String cls = jc.getClassName();
068:                Iterator itr = atomic_rules.iterator();
069:                while (itr.hasNext()) {
070:                    NameRule rule = (NameRule) itr.next();
071:                    if (rule.isMatch(cls, uniqueName)) {
072:                        System.out.println("Found atomic rule for " + cls + ":"
073:                                + uniqueName);
074:                        return rule.getResult() == 1;
075:                    }
076:                }
077:                // if no rules matched, use the default rules
078:                return super .isMethodAtomic(jc, mth, uniqueName);
079:            }
080:
081:            /**
082:             * is calling a certain method in the context of multiple runnable threads
083:             * scheduling relevant (i.e. has to be considered as a step boundary
084:             */
085:            public int getSchedulingRelevance(JavaClass jc, Method mth,
086:                    String uniqueName) {
087:                String cls = jc.getClassName();
088:                Iterator itr = relevance_rules.iterator();
089:                while (itr.hasNext()) {
090:                    NameRule rule = (NameRule) itr.next();
091:                    if (rule.isMatch(cls, uniqueName)) {
092:                        int result = rule.getResult();
093:                        System.out.println("Found scheduling rule for " + cls
094:                                + ":" + uniqueName + " = " + result);
095:                        return result;
096:                    }
097:                }
098:                // if no rules matched, use the default rules
099:                return super .getSchedulingRelevance(jc, mth, uniqueName);
100:            }
101:
102:            private void parse(String filename) throws FileNotFoundException,
103:                    IOException {
104:                BufferedReader config_file = new BufferedReader(new FileReader(
105:                        filename));
106:                System.out.println("Using JPF attributes from " + filename);
107:                String line = config_file.readLine();
108:                String current_section = null;
109:                while (line != null) {
110:                    line = line.trim();
111:                    if (line.length() != 0 && line.charAt(0) != '#') {
112:                        if (line.charAt(0) == '[') {
113:                            current_section = parseSection(line);
114:                        } else if ("relevance".equals(current_section)) {
115:                            parseRelevanceRule(line);
116:                        } else if ("atomic".equals(current_section)) {
117:                            parseAtomicRule(line);
118:                        } else {
119:                            System.err.println("Rules found in section "
120:                                    + current_section + ", which is unknown.");
121:                        }
122:                    }
123:                    line = config_file.readLine();
124:                }
125:            }
126:
127:            private static final Pattern section_pattern = Pattern
128:                    .compile("\\[([a-zA-Z]+)\\]");
129:
130:            private String parseSection(String line) {
131:                Matcher match = section_pattern.matcher(line);
132:                if (match.matches()) {
133:                    return match.group(1);
134:                }
135:                System.err.println("Problem parsing section name " + line);
136:                return null;
137:            }
138:
139:            private static final Pattern relevance_rule_pattern = Pattern
140:                    .compile("([^ ]+) +([^ ]+) +(always|never|neverbody|runnables|sync)");
141:
142:            private void parseRelevanceRule(String line) {
143:                Matcher match = relevance_rule_pattern.matcher(line);
144:                if (match.matches()) {
145:                    int result = 0;
146:                    String value = match.group(3);
147:                    if ("always".equals(value)) {
148:                        result = MethodInfo.SR_ALWAYS;
149:                    } else if ("never".equals(value)) {
150:                        result = MethodInfo.SR_NEVER;
151:                    } else if ("neverbody".equals(value)) {
152:                        result = MethodInfo.SR_NEVERBODY;
153:                    } else if ("runnables".equals(value)) {
154:                        result = MethodInfo.SR_RUNNABLES;
155:                    } else if ("sync".equals(value)) {
156:                        result = MethodInfo.SR_SYNC;
157:                    } else {
158:                        System.err.println("Unknown relevance value: " + value);
159:                        return;
160:                    }
161:                    relevance_rules.add(new NameRule(match.group(1), match
162:                            .group(2), result));
163:                } else {
164:                    System.err.println("Relevance rule parse error on line: "
165:                            + line);
166:                }
167:            }
168:
169:            private static final Pattern atomic_rule_pattern = Pattern
170:                    .compile("([^ ]+) +([^ ]+) +(true|false)");
171:
172:            private void parseAtomicRule(String line) {
173:                Matcher match = atomic_rule_pattern.matcher(line);
174:                if (match.matches()) {
175:                    int result = 0;
176:                    String value = match.group(3);
177:                    if ("true".equals(value)) {
178:                        result = 1;
179:                    } else if ("false".equals(value)) {
180:                        result = 0;
181:                    } else {
182:                        System.err.println("Unknown atomic value: " + value);
183:                        return;
184:                    }
185:                    atomic_rules.add(new NameRule(match.group(1), match
186:                            .group(2), result));
187:                } else {
188:                    System.err.println("Atomic rule parse error on line: "
189:                            + line);
190:                }
191:            }
192:
193:            /**
194:             * A rule that contains two regular expressions that will take two strings
195:             * and report if they match the rule.
196:             * It also stores the result that needs to be returned if this rule matches.
197:             */
198:            private static class NameRule {
199:                NameRule(String class_pattern_string,
200:                        String method_pattern_string, int value) {
201:                    class_pattern = Pattern.compile(class_pattern_string);
202:                    method_pattern = Pattern.compile(method_pattern_string);
203:                    result = value;
204:                }
205:
206:                boolean isMatch(String class_name, String method_name) {
207:                    Matcher class_match = class_pattern.matcher(class_name);
208:                    if (class_match.matches()) {
209:                        return method_pattern.matcher(method_name).matches();
210:                    }
211:                    return false;
212:                }
213:
214:                int getResult() {
215:                    return result;
216:                }
217:
218:                Pattern class_pattern;
219:                Pattern method_pattern;
220:                int result;
221:            }
222:
223:            private List relevance_rules = new ArrayList();
224:            private List atomic_rules = new ArrayList();
225:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.