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
24 import java.io.File;
25 import java.io.IOException;
26 import java.io.OutputStream;
27 import java.util.Arrays;
28 import java.util.StringTokenizer;
29
30 /**
31 * RMI regression test utility class that uses Runtime.exec to spawn a
32 * java process that will run a named java class.
33 */
34 public class JavaVM {
35
36 protected Process vm = null;
37
38 private String classname = "";
39 private String args = "";
40 private String options = "";
41 private OutputStream outputStream = System.out;
42 private OutputStream errorStream = System.err;
43 private String policyFileName = null;
44 private StreamPipe outPipe;
45 private StreamPipe errPipe;
46
47 private static void mesg(Object mesg) {
48 System.err.println("JAVAVM: " + mesg.toString());
153
154 public void destroy() {
155 if (vm != null) {
156 vm.destroy();
157 }
158 vm = null;
159 }
160
161 /**
162 * Waits for the subprocess to exit, joins the pipe threads to ensure that
163 * all output is collected, and returns its exit status.
164 */
165 public int waitFor() throws InterruptedException {
166 if (vm == null)
167 throw new IllegalStateException("can't wait for JavaVM that isn't running");
168
169 int status = vm.waitFor();
170 outPipe.join();
171 errPipe.join();
172 return status;
173 }
174
175 /**
176 * Starts the subprocess, waits for it to exit, and returns its exit status.
177 */
178 public int execute() throws IOException, InterruptedException {
179 start();
180 return waitFor();
181 }
182 }
|
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
24 import java.io.File;
25 import java.io.IOException;
26 import java.io.OutputStream;
27 import java.util.Arrays;
28 import java.util.StringTokenizer;
29 import java.util.concurrent.TimeoutException;
30
31 /**
32 * RMI regression test utility class that uses Runtime.exec to spawn a
33 * java process that will run a named java class.
34 */
35 public class JavaVM {
36
37 protected Process vm = null;
38
39 private String classname = "";
40 private String args = "";
41 private String options = "";
42 private OutputStream outputStream = System.out;
43 private OutputStream errorStream = System.err;
44 private String policyFileName = null;
45 private StreamPipe outPipe;
46 private StreamPipe errPipe;
47
48 private static void mesg(Object mesg) {
49 System.err.println("JAVAVM: " + mesg.toString());
154
155 public void destroy() {
156 if (vm != null) {
157 vm.destroy();
158 }
159 vm = null;
160 }
161
162 /**
163 * Waits for the subprocess to exit, joins the pipe threads to ensure that
164 * all output is collected, and returns its exit status.
165 */
166 public int waitFor() throws InterruptedException {
167 if (vm == null)
168 throw new IllegalStateException("can't wait for JavaVM that isn't running");
169
170 int status = vm.waitFor();
171 outPipe.join();
172 errPipe.join();
173 return status;
174 }
175
176 /**
177 * Causes the current thread to wait the vm process to exit, if necessary,
178 * wait until the vm process has terminated, or the specified waiting time
179 * elapses. Release allocated input/output after vm process has terminated.
180 * @param timeout the maximum milliseconds to wait.
181 * @return exit value for vm process.
182 * @throws InterruptedException if the current thread is interrupted
183 * while waiting.
184 * @throws TimeoutException if subprocess does not end after timeout
185 * milliseconds passed
186 */
187 public int waitFor(long timeout)
188 throws InterruptedException, TimeoutException {
189 if (vm == null)
190 throw new IllegalStateException("can't wait for JavaVM that isn't running");
191 long startTime = System.currentTimeMillis();
192 long rem = timeout;
193
194 do {
195 try {
196 int status = vm.exitValue();
197 outPipe.join();
198 errPipe.join();
199 return status;
200 } catch (IllegalThreadStateException ex) {
201 if (rem > 0) {
202 Thread.sleep(Math.min(rem, 100));
203 }
204 }
205 rem = timeout - (System.currentTimeMillis() - startTime);
206 } while (rem > 0);
207 throw new TimeoutException();
208 }
209
210 /**
211 * Starts the subprocess, waits for it to exit, and returns its exit status.
212 */
213 public int execute() throws IOException, InterruptedException {
214 start();
215 return waitFor();
216 }
217 }
|