Mercurial > jdk8-mips64-public > corba / annotate
src/share/classes/com/sun/corba/se/impl/activation/ProcessMonitorThread.java@6845b95cba6b (annotated)
src/share/classes/com/sun/corba/se/impl/activation/ProcessMonitorThread.java
Thu, 31 Aug 2017 18:10:36 +0800
- author
- aoqi
- date
- Thu, 31 Aug 2017 18:10:36 +0800
- changeset 748
- 6845b95cba6b
- parent 158
- 91006f157c46
- parent 0
- 7ef37b2cdcad
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2001, 2003, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
| aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
| aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
| aoqi@0 | 10 | * |
| aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 15 | * accompanied this code). |
| aoqi@0 | 16 | * |
| aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 20 | * |
| aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 23 | * questions. |
| aoqi@0 | 24 | */ |
| aoqi@0 | 25 | |
| aoqi@0 | 26 | package com.sun.corba.se.impl.activation; |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | import java.util.*; |
| aoqi@0 | 29 | import com.sun.corba.se.impl.orbutil.ORBConstants; |
| aoqi@0 | 30 | |
| aoqi@0 | 31 | /** ProcessMonitorThread is started when ServerManager is instantiated. The |
| aoqi@0 | 32 | * thread wakes up every minute (This can be changed by setting sleepTime) and |
| aoqi@0 | 33 | * makes sure that all the processes (Servers) registered with the ServerTool |
| aoqi@0 | 34 | * are healthy. If not the state in ServerTableEntry will be changed to |
| aoqi@0 | 35 | * De-Activated. |
| aoqi@0 | 36 | * Note: This thread can be killed from the main thread by calling |
| aoqi@0 | 37 | * interrupThread() |
| aoqi@0 | 38 | */ |
| aoqi@0 | 39 | public class ProcessMonitorThread extends java.lang.Thread { |
| aoqi@0 | 40 | private HashMap serverTable; |
| aoqi@0 | 41 | private int sleepTime; |
| aoqi@0 | 42 | private static ProcessMonitorThread instance = null; |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | private ProcessMonitorThread( HashMap ServerTable, int SleepTime ) { |
| aoqi@0 | 45 | serverTable = ServerTable; |
| aoqi@0 | 46 | sleepTime = SleepTime; |
| aoqi@0 | 47 | } |
| aoqi@0 | 48 | |
| aoqi@0 | 49 | public void run( ) { |
| aoqi@0 | 50 | while( true ) { |
| aoqi@0 | 51 | try { |
| aoqi@0 | 52 | // Sleep's for a specified time, before checking |
| aoqi@0 | 53 | // the Servers health. This will repeat as long as |
| aoqi@0 | 54 | // the ServerManager (ORBD) is up and running. |
| aoqi@0 | 55 | Thread.sleep( sleepTime ); |
| aoqi@0 | 56 | } catch( java.lang.InterruptedException e ) { |
| aoqi@0 | 57 | break; |
| aoqi@0 | 58 | } |
| aoqi@0 | 59 | Iterator serverList; |
| aoqi@0 | 60 | synchronized ( serverTable ) { |
| aoqi@0 | 61 | // Check each ServerTableEntry to make sure that they |
| aoqi@0 | 62 | // are in the right state. |
| aoqi@0 | 63 | serverList = serverTable.values().iterator(); |
| aoqi@0 | 64 | } |
| aoqi@0 | 65 | try { |
| aoqi@0 | 66 | checkServerHealth( serverList ); |
| aoqi@0 | 67 | } catch( ConcurrentModificationException e ) { |
| aoqi@0 | 68 | break; |
| aoqi@0 | 69 | } |
| aoqi@0 | 70 | } |
| aoqi@0 | 71 | } |
| aoqi@0 | 72 | |
| aoqi@0 | 73 | private void checkServerHealth( Iterator serverList ) { |
| aoqi@0 | 74 | if( serverList == null ) return; |
| aoqi@0 | 75 | while (serverList.hasNext( ) ) { |
| aoqi@0 | 76 | ServerTableEntry entry = (ServerTableEntry) serverList.next(); |
| aoqi@0 | 77 | entry.checkProcessHealth( ); |
| aoqi@0 | 78 | } |
| aoqi@0 | 79 | } |
| aoqi@0 | 80 | |
| aoqi@0 | 81 | static void start( HashMap serverTable ) { |
| aoqi@0 | 82 | int sleepTime = ORBConstants.DEFAULT_SERVER_POLLING_TIME; |
| aoqi@0 | 83 | |
| aoqi@0 | 84 | String pollingTime = System.getProperties().getProperty( |
| aoqi@0 | 85 | ORBConstants.SERVER_POLLING_TIME ); |
| aoqi@0 | 86 | |
| aoqi@0 | 87 | if ( pollingTime != null ) { |
| aoqi@0 | 88 | try { |
| aoqi@0 | 89 | sleepTime = Integer.parseInt( pollingTime ); |
| aoqi@0 | 90 | } catch (Exception e ) { |
| aoqi@0 | 91 | // Too late to complain, Just use the default |
| aoqi@0 | 92 | // sleepTime |
| aoqi@0 | 93 | } |
| aoqi@0 | 94 | } |
| aoqi@0 | 95 | |
| aoqi@0 | 96 | instance = new ProcessMonitorThread( serverTable, |
| aoqi@0 | 97 | sleepTime ); |
| aoqi@0 | 98 | instance.setDaemon( true ); |
| aoqi@0 | 99 | instance.start(); |
| aoqi@0 | 100 | } |
| aoqi@0 | 101 | |
| aoqi@0 | 102 | static void interruptThread( ) { |
| aoqi@0 | 103 | instance.interrupt(); |
| aoqi@0 | 104 | } |
| aoqi@0 | 105 | } |
