author | mchung |
Wed, 27 Apr 2016 12:06:51 -0700 | |
changeset 37675 | a9be5f4baa63 |
parent 34351 | jdk/src/jdk.jvmstat.rmi/share/classes/sun/jvmstat/perfdata/monitor/protocol/rmi/RemoteVmManager.java@f30070a16a4b |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.jvmstat.perfdata.monitor.protocol.rmi; |
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import java.util.*; |
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import java.util.regex.*; |
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import java.io.*; |
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import java.rmi.RemoteException; |
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import sun.jvmstat.monitor.*; |
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import sun.jvmstat.monitor.event.*; |
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import sun.jvmstat.monitor.remote.*; |
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/** |
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* Class for managing the RemoteMonitoredVm instances on a remote system. |
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* <p> |
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* This class is responsible for the mechanism that detects the active |
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* HotSpot Java Virtual Machines on the remote host and possibly for a |
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* specific user. The ability to detect all possible HotSpot Java Virtual |
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* Machines on the remote host may be limited by the permissions of the |
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* principal running the RMI server application on the remote host. |
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* |
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* @author Brian Doherty |
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* @since 1.5 |
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*/ |
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public class RemoteVmManager { |
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private RemoteHost remoteHost; |
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private String user; |
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/** |
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* Creates a RemoteVmManager instance for the remote system. |
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* <p> |
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* Manages RemoteMonitordVm instances for which the principal |
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* running the remote server has appropriate permissions. |
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* |
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* @param remoteHost the remote proxy object to the RMI server on |
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* the remote system. |
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*/ |
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public RemoteVmManager(RemoteHost remoteHost) { |
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this(remoteHost, null); |
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} |
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/** |
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* Creates a RemoteVmManager instance for the given user. |
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* <p> |
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* Manages RemoteMonitoredVm instances for all remote Java Virtual |
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* machines owned by the specified user on the remote system. The |
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* RMI server on the remote system must have the appropriate permissions |
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* to access the named users Java Virtual Machines. |
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* |
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* @param remoteHost the remote proxy object to the RMI server on |
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* the remote system. |
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* @param user the name of the user |
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*/ |
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public RemoteVmManager(RemoteHost remoteHost, String user) { |
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this.user = user; |
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this.remoteHost = remoteHost; |
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} |
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/** |
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* Return the current set of monitorable Java Virtual Machines. |
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* <p> |
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* The set returned by this method depends on the user name passed |
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* to the constructor. If no user name was specified, then this |
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* method will return all candidate JVMs on the system. Otherwise, |
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* only the JVMs for the given user will be returned. This assumes |
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* that the RMI server process has the appropriate permissions to |
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* access the target set of JVMs. |
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* |
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* @return Set - the Set of monitorable Java Virtual Machines |
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*/ |
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public Set<Integer> activeVms() throws MonitorException { |
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int[] active = null; |
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try { |
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active = remoteHost.activeVms(); |
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} catch (RemoteException e) { |
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throw new MonitorException("Error communicating with remote host: " |
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+ e.getMessage(), e); |
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} |
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Set<Integer> activeSet = new HashSet<Integer>(active.length); |
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for (int i = 0; i < active.length; i++) { |
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10d789df41bb
8049892: Replace uses of 'new Integer()' with appropriate alternative across core classes
prr
parents:
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activeSet.add(active[i]); |
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} |
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return activeSet; |
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} |
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} |