39 */
40
41 public class SetVMFlagTest {
42 private static final String MANAGEABLE_PATTERN = "\\s*bool\\s+(\\S+)\\s+[\\:]?=\\s+" +
43 "(.*?)\\s+\\{manageable\\}";
44 private static final String IMMUTABLE_PATTERN = "\\s*uintx\\s+(\\S+)\\s+[\\:]?=\\s+" +
45 "(.*?)\\s+\\{product\\}";
46
47 public void run(CommandExecutor executor) {
48 setMutableFlag(executor);
49 setMutableFlagWithInvalidValue(executor);
50 setImmutableFlag(executor);
51 setNonExistingFlag(executor);
52 }
53
54 @Test
55 public void jmx() {
56 run(new JMXExecutor());
57 }
58
59 private void setMutableFlag(CommandExecutor executor) {
60 OutputAnalyzer out = getAllFlags(executor);
61 String flagName = out.firstMatch(MANAGEABLE_PATTERN, 1);
62 String flagVal = out.firstMatch(MANAGEABLE_PATTERN, 2);
63
64 System.out.println("### Setting a mutable flag '" + flagName + "'");
65
66 if (flagVal == null) {
67 System.err.println(out.getOutput());
68 throw new Error("Can not find a boolean manageable flag");
69 }
70
71 Boolean blnVal = Boolean.parseBoolean(flagVal);
72
73 out = executor.execute("VM.set_flag " + flagName + " " + (blnVal ? 0 : 1));
74 out.stderrShouldBeEmpty();
75
76 out = getAllFlags(executor);
77
78 String newFlagVal = out.firstMatch(MANAGEABLE_PATTERN.replace("(\\S+)", flagName), 1);
79
80 assertNotEquals(newFlagVal, flagVal);
81 }
82
83 private void setMutableFlagWithInvalidValue(CommandExecutor executor) {
84 OutputAnalyzer out = getAllFlags(executor);
85 String flagName = out.firstMatch(MANAGEABLE_PATTERN, 1);
86 String flagVal = out.firstMatch(MANAGEABLE_PATTERN, 2);
87
88 System.out.println("### Setting a mutable flag '" + flagName + "' to an invalid value");
89
90 if (flagVal == null) {
91 System.err.println(out.getOutput());
92 throw new Error("Can not find a boolean manageable flag");
93 }
94
95 // a boolean flag accepts only 0/1 as its value
96 out = executor.execute("VM.set_flag " + flagName + " unexpected_value");
97 out.stderrShouldBeEmpty();
98 out.stdoutShouldContain("flag value must be a boolean (1 or 0)");
99
100 out = getAllFlags(executor);
101
102 String newFlagVal = out.firstMatch(MANAGEABLE_PATTERN.replace("(\\S+)", flagName), 1);
103
104 assertEquals(newFlagVal, flagVal);
105 }
106
107 private void setImmutableFlag(CommandExecutor executor) {
108 OutputAnalyzer out = getAllFlags(executor);
109 String flagName = out.firstMatch(IMMUTABLE_PATTERN, 1);
110 String flagVal = out.firstMatch(IMMUTABLE_PATTERN, 2);
111
112 System.out.println("### Setting an immutable flag '" + flagName + "'");
113
114 if (flagVal == null) {
115 System.err.println(out.getOutput());
116 throw new Error("Can not find an immutable uintx flag");
117 }
118
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39 */
40
41 public class SetVMFlagTest {
42 private static final String MANAGEABLE_PATTERN = "\\s*bool\\s+(\\S+)\\s+[\\:]?=\\s+" +
43 "(.*?)\\s+\\{manageable\\}";
44 private static final String IMMUTABLE_PATTERN = "\\s*uintx\\s+(\\S+)\\s+[\\:]?=\\s+" +
45 "(.*?)\\s+\\{product\\}";
46
47 public void run(CommandExecutor executor) {
48 setMutableFlag(executor);
49 setMutableFlagWithInvalidValue(executor);
50 setImmutableFlag(executor);
51 setNonExistingFlag(executor);
52 }
53
54 @Test
55 public void jmx() {
56 run(new JMXExecutor());
57 }
58
59 private void setMutableFlagInternal(CommandExecutor executor, String flag,
60 boolean val, boolean isNumeric) {
61 String strFlagVal;
62 if (isNumeric) {
63 strFlagVal = val ? "1" : "0";
64 } else {
65 strFlagVal = val ? "true" : "false";
66 }
67
68 OutputAnalyzer out = executor.execute("VM.set_flag " + flag + " " + strFlagVal);
69 out.stderrShouldBeEmpty();
70
71 out = getAllFlags(executor);
72
73 String newFlagVal = out.firstMatch(MANAGEABLE_PATTERN.replace("(\\S+)", flag), 1);
74
75 assertNotEquals(newFlagVal, val ? "1" : "0");
76 }
77
78 private void setMutableFlag(CommandExecutor executor) {
79 OutputAnalyzer out = getAllFlags(executor);
80 String flagName = out.firstMatch(MANAGEABLE_PATTERN, 1);
81 String flagVal = out.firstMatch(MANAGEABLE_PATTERN, 2);
82
83 System.out.println("### Setting a mutable flag '" + flagName + "'");
84
85 if (flagVal == null) {
86 System.err.println(out.getOutput());
87 throw new Error("Can not find a boolean manageable flag");
88 }
89
90 Boolean blnVal = Boolean.parseBoolean(flagVal);
91 setMutableFlagInternal(executor, flagName, !blnVal, true);
92 setMutableFlagInternal(executor, flagName, blnVal, false);
93 }
94
95 private void setMutableFlagWithInvalidValue(CommandExecutor executor) {
96 OutputAnalyzer out = getAllFlags(executor);
97 String flagName = out.firstMatch(MANAGEABLE_PATTERN, 1);
98 String flagVal = out.firstMatch(MANAGEABLE_PATTERN, 2);
99
100 System.out.println("### Setting a mutable flag '" + flagName + "' to an invalid value");
101
102 if (flagVal == null) {
103 System.err.println(out.getOutput());
104 throw new Error("Can not find a boolean manageable flag");
105 }
106
107 // a boolean flag accepts only 0/1 as its value
108 out = executor.execute("VM.set_flag " + flagName + " unexpected_value");
109 out.stderrShouldBeEmpty();
110 out.stdoutShouldContain("flag value must be a boolean (1/0 or true/false)");
111
112 out = getAllFlags(executor);
113
114 String newFlagVal = out.firstMatch(MANAGEABLE_PATTERN.replace("(\\S+)", flagName), 1);
115
116 assertEquals(newFlagVal, flagVal);
117 }
118
119 private void setImmutableFlag(CommandExecutor executor) {
120 OutputAnalyzer out = getAllFlags(executor);
121 String flagName = out.firstMatch(IMMUTABLE_PATTERN, 1);
122 String flagVal = out.firstMatch(IMMUTABLE_PATTERN, 2);
123
124 System.out.println("### Setting an immutable flag '" + flagName + "'");
125
126 if (flagVal == null) {
127 System.err.println(out.getOutput());
128 throw new Error("Can not find an immutable uintx flag");
129 }
130
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