--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.jcmd/share/classes/sun/tools/jcmd/JCmd.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.tools.jcmd;
+
+import java.io.InputStream;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.util.List;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.net.URISyntaxException;
+
+import com.sun.tools.attach.AttachOperationFailedException;
+import com.sun.tools.attach.VirtualMachine;
+import com.sun.tools.attach.VirtualMachineDescriptor;
+import com.sun.tools.attach.AttachNotSupportedException;
+
+import sun.tools.attach.HotSpotVirtualMachine;
+import sun.tools.common.ProcessArgumentMatcher;
+import sun.tools.jstat.JStatLogger;
+import sun.jvmstat.monitor.Monitor;
+import sun.jvmstat.monitor.MonitoredHost;
+import sun.jvmstat.monitor.MonitoredVm;
+import sun.jvmstat.monitor.MonitorException;
+import sun.jvmstat.monitor.VmIdentifier;
+
+public class JCmd {
+ public static void main(String[] args) {
+ Arguments arg = null;
+ try {
+ arg = new Arguments(args);
+ } catch (IllegalArgumentException ex) {
+ System.err.println("Error parsing arguments: " + ex.getMessage()
+ + "\n");
+ Arguments.usage();
+ System.exit(1);
+ }
+
+ if (arg.isShowUsage()) {
+ Arguments.usage();
+ System.exit(1);
+ }
+
+ ProcessArgumentMatcher ap = null;
+ try {
+ ap = new ProcessArgumentMatcher(arg.getProcessString());
+ } catch (IllegalArgumentException iae) {
+ System.err.println("Invalid pid '" + arg.getProcessString() + "' specified");
+ System.exit(1);
+ }
+
+ if (arg.isListProcesses()) {
+ for (VirtualMachineDescriptor vmd : ap.getVirtualMachineDescriptors(/* include jcmd in listing */)) {
+ System.out.println(vmd.id() + " " + vmd.displayName());
+ }
+ System.exit(0);
+ }
+
+ Collection<String> pids = ap.getVirtualMachinePids(JCmd.class);
+
+ if (pids.isEmpty()) {
+ System.err.println("Could not find any processes matching : '"
+ + arg.getProcessString() + "'");
+ System.exit(1);
+ }
+
+ boolean success = true;
+ for (String pid : pids) {
+ System.out.println(pid + ":");
+ if (arg.isListCounters()) {
+ listCounters(pid);
+ } else {
+ try {
+ executeCommandForPid(pid, arg.getCommand());
+ } catch(AttachOperationFailedException ex) {
+ System.err.println(ex.getMessage());
+ success = false;
+ } catch(Exception ex) {
+ ex.printStackTrace();
+ success = false;
+ }
+ }
+ }
+ System.exit(success ? 0 : 1);
+ }
+
+ private static void executeCommandForPid(String pid, String command)
+ throws AttachNotSupportedException, IOException,
+ UnsupportedEncodingException {
+ VirtualMachine vm = VirtualMachine.attach(pid);
+
+ // Cast to HotSpotVirtualMachine as this is an
+ // implementation specific method.
+ HotSpotVirtualMachine hvm = (HotSpotVirtualMachine) vm;
+ String lines[] = command.split("\\n");
+ for (String line : lines) {
+ if (line.trim().equals("stop")) {
+ break;
+ }
+ try (InputStream in = hvm.executeJCmd(line);) {
+ // read to EOF and just print output
+ byte b[] = new byte[256];
+ int n;
+ boolean messagePrinted = false;
+ do {
+ n = in.read(b);
+ if (n > 0) {
+ String s = new String(b, 0, n, "UTF-8");
+ System.out.print(s);
+ messagePrinted = true;
+ }
+ } while (n > 0);
+ if (!messagePrinted) {
+ System.out.println("Command executed successfully");
+ }
+ }
+ }
+ vm.detach();
+ }
+
+ private static void listCounters(String pid) {
+ // Code from JStat (can't call it directly since it does System.exit)
+ VmIdentifier vmId = null;
+ try {
+ vmId = new VmIdentifier(pid);
+ } catch (URISyntaxException e) {
+ System.err.println("Malformed VM Identifier: " + pid);
+ return;
+ }
+ try {
+ MonitoredHost monitoredHost = MonitoredHost.getMonitoredHost(vmId);
+ MonitoredVm monitoredVm = monitoredHost.getMonitoredVm(vmId, -1);
+ JStatLogger logger = new JStatLogger(monitoredVm);
+ logger.printSnapShot("\\w*", // all names
+ new AscendingMonitorComparator(), // comparator
+ false, // not verbose
+ true, // show unsupported
+ System.out);
+ monitoredHost.detach(monitoredVm);
+ } catch (MonitorException ex) {
+ ex.printStackTrace();
+ }
+ }
+
+ /**
+ * Class to compare two Monitor objects by name in ascending order.
+ * (from jstat)
+ */
+ static class AscendingMonitorComparator implements Comparator<Monitor> {
+
+ public int compare(Monitor m1, Monitor m2) {
+ String name1 = m1.getName();
+ String name2 = m2.getName();
+ return name1.compareTo(name2);
+ }
+ }
+}