/* * Copyright (c) 2004, 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.jvmstat.perfdata.monitor;import java.util.List;import java.lang.reflect.*;import java.io.*;import sun.jvmstat.monitor.*;import sun.jvmstat.monitor.remote.*;import sun.jvmstat.monitor.event.VmListener;/** * Base class for all MonitoredVm implementations that utilize the * HotSpot PerfData instrumentation buffer as the communications * mechanism to the target Java Virtual Machine. * * @author Brian Doherty * @since 1.5 */public abstract class AbstractMonitoredVm implements BufferedMonitoredVm { /** * The VmIdentifier for the target. */ protected VmIdentifier vmid; /** * The shared memory instrumentation buffer for the target. */ protected AbstractPerfDataBuffer pdb; /** * The sampling interval, if the instrumentation buffer is acquired * by sampling instead of shared memory mechanisms. */ protected int interval; /** * Create an AbstractMonitoredVm instance. * * @param vmid the VmIdentifier for the target * @param interval the initial sampling interval */ public AbstractMonitoredVm(VmIdentifier vmid, int interval) throws MonitorException { this.vmid = vmid; this.interval = interval; } /** * {@inheritDoc} */ public VmIdentifier getVmIdentifier() { return vmid; } /** * {@inheritDoc} */ public Monitor findByName(String name) throws MonitorException { return pdb.findByName(name); } /** * {@inheritDoc} */ public List<Monitor> findByPattern(String patternString) throws MonitorException { return pdb.findByPattern(patternString); } /** * {@inheritDoc} */ public void detach() { /* * no default action required because the detach operation for the * native byte buffer is managed by the sun.misc.Perf class. */ } /* ---- Methods to support polled MonitoredVm Implementations ----- */ /** * {@inheritDoc} */ public void setInterval(int interval) { this.interval = interval; } /** * {@inheritDoc} */ public int getInterval() { return interval; } /** * {@inheritDoc} */ public void setLastException(Exception e) { // XXX: implement } /** * {@inheritDoc} */ public Exception getLastException() { // XXX: implement return null; } /** * {@inheritDoc} */ public void clearLastException() { // XXX: implement } /** * {@inheritDoc} */ public boolean isErrored() { // XXX: implement return false; } /** * Get a list of the inserted and removed monitors since last called. * * @return MonitorStatus - the status of available Monitors for the * target Java Virtual Machine. * @throws MonitorException Thrown if communications errors occur * while communicating with the target. */ public MonitorStatus getMonitorStatus() throws MonitorException { return pdb.getMonitorStatus(); } /* --------------- Methods to support VmListeners ----------------- */ /** * {@inheritDoc} */ public abstract void addVmListener(VmListener l); /** * {@inheritDoc} */ public abstract void removeVmListener(VmListener l); /* ---- Methods to support BufferedMonitoredVm Implementations ---- */ /** * {@inheritDoc} */ public byte[] getBytes() { return pdb.getBytes(); } /** * {@inheritDoc} */ public int getCapacity() { return pdb.getCapacity(); }}
/*
* Copyright (c) 2004, 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.jvmstat.perfdata.monitor;
import java.util.List;
import java.lang.reflect.*;
import java.io.*;
import sun.jvmstat.monitor.*;
import sun.jvmstat.monitor.remote.*;
import sun.jvmstat.monitor.event.VmListener;
/**
* Base class for all MonitoredVm implementations that utilize the
* HotSpot PerfData instrumentation buffer as the communications
* mechanism to the target Java Virtual Machine.
*
* @author Brian Doherty
* @since 1.5
*/
public abstract class AbstractMonitoredVm implements BufferedMonitoredVm {
/**
* The VmIdentifier for the target.
*/
protected VmIdentifier vmid;
/**
* The shared memory instrumentation buffer for the target.
*/
protected AbstractPerfDataBuffer pdb;
/**
* The sampling interval, if the instrumentation buffer is acquired
* by sampling instead of shared memory mechanisms.
*/
protected int interval;
/**
* Create an AbstractMonitoredVm instance.
*
* @param vmid the VmIdentifier for the target
* @param interval the initial sampling interval
*/
public AbstractMonitoredVm(VmIdentifier vmid, int interval)
throws MonitorException {
this.vmid = vmid;
this.interval = interval;
}
/**
* {@inheritDoc}
*/
public VmIdentifier getVmIdentifier() {
return vmid;
}
/**
* {@inheritDoc}
*/
public Monitor findByName(String name) throws MonitorException {
return pdb.findByName(name);
}
/**
* {@inheritDoc}
*/
public List<Monitor> findByPattern(String patternString) throws MonitorException {
return pdb.findByPattern(patternString);
}
/**
* {@inheritDoc}
*/
public void detach() {
/*
* no default action required because the detach operation for the
* native byte buffer is managed by the sun.misc.Perf class.
*/
}
/* ---- Methods to support polled MonitoredVm Implementations ----- */
/**
* {@inheritDoc}
*/
public void setInterval(int interval) {
this.interval = interval;
}
/**
* {@inheritDoc}
*/
public int getInterval() {
return interval;
}
/**
* {@inheritDoc}
*/
public void setLastException(Exception e) {
// XXX: implement
}
/**
* {@inheritDoc}
*/
public Exception getLastException() {
// XXX: implement
return null;
}
/**
* {@inheritDoc}
*/
public void clearLastException() {
// XXX: implement
}
/**
* {@inheritDoc}
*/
public boolean isErrored() {
// XXX: implement
return false;
}
/**
* Get a list of the inserted and removed monitors since last called.
*
* @return MonitorStatus - the status of available Monitors for the
* target Java Virtual Machine.
* @throws MonitorException Thrown if communications errors occur
* while communicating with the target.
*/
public MonitorStatus getMonitorStatus() throws MonitorException {
return pdb.getMonitorStatus();
}
/* --------------- Methods to support VmListeners ----------------- */
/**
* {@inheritDoc}
*/
public abstract void addVmListener(VmListener l);
/**
* {@inheritDoc}
*/
public abstract void removeVmListener(VmListener l);
/* ---- Methods to support BufferedMonitoredVm Implementations ---- */
/**
* {@inheritDoc}
*/
public byte[] getBytes() {
return pdb.getBytes();
}
/**
* {@inheritDoc}
*/
public int getCapacity() {
return pdb.getCapacity();
}
}