6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package requires;
24
25 import java.io.IOException;
26 import java.nio.file.Files;
27 import java.nio.file.Paths;
28 import java.util.ArrayList;
29 import java.util.HashMap;
30 import java.util.List;
31 import java.util.Map;
32 import java.util.concurrent.Callable;
33 import java.util.regex.Matcher;
34 import java.util.regex.Pattern;
35
36 /**
37 * The Class to be invoked by jtreg prior Test Suite execution to
38 * collect information about VM.
39 * Properties set by this Class will be available in the @requires expressions.
40 */
41 public class VMProps implements Callable<Map<String, String>> {
42
43 /**
44 * Collects information about VM properties.
45 * This method will be invoked by jtreg.
46 *
47 * @return Map of property-value pairs.
48 */
49 @Override
50 public Map<String, String> call() {
51 Map<String, String> map = new HashMap<>();
52 map.put("vm.flavor", vmFlavor());
53 map.put("vm.compMode", vmCompMode());
54 map.put("vm.bits", vmBits());
55 dump(map);
56 return map;
57 }
58
59 /**
60 * @return VM type value extracted from the "java.vm.name" property.
61 */
62 protected String vmFlavor() {
63 // E.g. "Java HotSpot(TM) 64-Bit Server VM"
64 String vmName = System.getProperty("java.vm.name");
65 if (vmName == null) {
66 return null;
67 }
68
69 Pattern startP = Pattern.compile(".* (\\S+) VM");
70 Matcher m = startP.matcher(vmName);
71 if (m.matches()) {
72 return m.group(1).toLowerCase();
73 }
74 return null;
87 if (k < 0) {
88 return null;
89 }
90 vmInfo = vmInfo.substring(0, k);
91 switch (vmInfo) {
92 case "mixed" : return "Xmixed";
93 case "compiled" : return "Xcomp";
94 case "interpreted" : return "Xint";
95 default: return null;
96 }
97 }
98
99 /**
100 * @return VM bitness, the value of the "sun.arch.data.model" property.
101 */
102 protected String vmBits() {
103 return System.getProperty("sun.arch.data.model");
104 }
105
106 /**
107 * Dumps the map to the file if the file name is given as the property.
108 * This functionality could be helpful to know context in the real
109 * execution.
110 *
111 * @param map
112 */
113 protected void dump(Map<String, String> map) {
114 String dumpFileName = System.getProperty("vmprops.dump");
115 if (dumpFileName == null) {
116 return;
117 }
118 List<String> lines = new ArrayList<>();
119 map.forEach((k,v) -> lines.add(k + ":" + v));
120 try {
121 Files.write(Paths.get(dumpFileName), lines);
122 } catch (IOException e) {
123 throw new RuntimeException("Failed to dump properties into '"
124 + dumpFileName + "'", e);
125 }
126 }
127
128 /**
129 * This method is for the testing purpose only.
130 * @param args
131 */
132 public static void main(String args[]) {
133 Map<String, String> map = new VMProps().call();
134 map.forEach((k,v) -> System.out.println(k + ": '" + v + "'"));
135 }
136 }
|
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package requires;
24
25 import java.io.IOException;
26 import java.lang.management.ManagementFactory;
27 import java.lang.management.RuntimeMXBean;
28 import java.nio.file.Files;
29 import java.nio.file.Paths;
30 import java.util.ArrayList;
31 import java.util.HashMap;
32 import java.util.List;
33 import java.util.Map;
34 import java.util.concurrent.Callable;
35 import java.util.regex.Matcher;
36 import java.util.regex.Pattern;
37
38 /**
39 * The Class to be invoked by jtreg prior Test Suite execution to
40 * collect information about VM.
41 * Properties set by this Class will be available in the @requires expressions.
42 */
43 public class VMProps implements Callable<Map<String, String>> {
44
45 /**
46 * Collects information about VM properties.
47 * This method will be invoked by jtreg.
48 *
49 * @return Map of property-value pairs.
50 */
51 @Override
52 public Map<String, String> call() {
53 Map<String, String> map = new HashMap<>();
54 map.put("vm.flavor", vmFlavor());
55 map.put("vm.compMode", vmCompMode());
56 map.put("vm.bits", vmBits());
57 map.put("vm.flightRecorder", vmFlightRecorder());
58 dump(map);
59 return map;
60 }
61
62 /**
63 * @return VM type value extracted from the "java.vm.name" property.
64 */
65 protected String vmFlavor() {
66 // E.g. "Java HotSpot(TM) 64-Bit Server VM"
67 String vmName = System.getProperty("java.vm.name");
68 if (vmName == null) {
69 return null;
70 }
71
72 Pattern startP = Pattern.compile(".* (\\S+) VM");
73 Matcher m = startP.matcher(vmName);
74 if (m.matches()) {
75 return m.group(1).toLowerCase();
76 }
77 return null;
90 if (k < 0) {
91 return null;
92 }
93 vmInfo = vmInfo.substring(0, k);
94 switch (vmInfo) {
95 case "mixed" : return "Xmixed";
96 case "compiled" : return "Xcomp";
97 case "interpreted" : return "Xint";
98 default: return null;
99 }
100 }
101
102 /**
103 * @return VM bitness, the value of the "sun.arch.data.model" property.
104 */
105 protected String vmBits() {
106 return System.getProperty("sun.arch.data.model");
107 }
108
109 /**
110 * @return "true" if Flight Recorder is enabled, "false" if is disabled.
111 */
112 protected String vmFlightRecorder() {
113 RuntimeMXBean runtimeMxBean = ManagementFactory.getRuntimeMXBean();
114 List<String> arguments = runtimeMxBean.getInputArguments();
115 if (arguments.contains("-XX:+UnlockCommercialFeatures")) {
116 if (arguments.contains("-XX:+FlightRecorder")) {
117 return "true";
118 }
119 if (arguments.contains("-XX:-FlightRecorder")) {
120 return "false";
121 }
122 if (arguments.stream()
123 .anyMatch(option -> option.startsWith("-XX:StartFlightRecording"))) {
124 return "true";
125 }
126 }
127 return "false";
128 }
129
130 /**
131 * Dumps the map to the file if the file name is given as the property.
132 * This functionality could be helpful to know context in the real
133 * execution.
134 *
135 * @param map
136 */
137 protected void dump(Map<String, String> map) {
138 String dumpFileName = System.getProperty("vmprops.dump");
139 if (dumpFileName == null) {
140 return;
141 }
142 List<String> lines = new ArrayList<>();
143 map.forEach((k, v) -> lines.add(k + ":" + v));
144 try {
145 Files.write(Paths.get(dumpFileName), lines);
146 } catch (IOException e) {
147 throw new RuntimeException("Failed to dump properties into '"
148 + dumpFileName + "'", e);
149 }
150 }
151
152 /**
153 * This method is for the testing purpose only.
154 * @param args
155 */
156 public static void main(String args[]) {
157 Map<String, String> map = new VMProps().call();
158 map.forEach((k, v) -> System.out.println(k + ": '" + v + "'"));
159 }
160 }
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