/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.plugins.iis;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hyperic.sigar.win32.Pdh;
import org.hyperic.sigar.win32.Service;
import org.hyperic.sigar.win32.Win32Exception;
import org.rhq.core.domain.configuration.Configuration;
import org.rhq.core.domain.measurement.AvailabilityType;
import org.rhq.core.domain.measurement.MeasurementDataNumeric;
import org.rhq.core.domain.measurement.MeasurementReport;
import org.rhq.core.domain.measurement.MeasurementScheduleRequest;
import org.rhq.core.pluginapi.inventory.InvalidPluginConfigurationException;
import org.rhq.core.pluginapi.inventory.ResourceComponent;
import org.rhq.core.pluginapi.inventory.ResourceContext;
import org.rhq.core.pluginapi.measurement.MeasurementFacet;
import org.rhq.core.pluginapi.operation.OperationFacet;
import org.rhq.core.pluginapi.operation.OperationResult;
import org.rhq.plugins.iis.util.Win32ServiceControlDelegate;
/**
*
* @author Greg Hinkle
* @author Joseph Marques
*/
public class IISServerComponent<T extends ResourceComponent<?>> implements ResourceComponent<T>, MeasurementFacet,
OperationFacet {
private static final String WINDOWS_SERVICE_NAME = "W3SVC";
private static final long SERVICE_CONTROL_TIMEOUT = 30000L;
private Log log = LogFactory.getLog(IISServerComponent.class);
private ResourceContext resourceContext;
private Service service;
public void start(ResourceContext resourceContext) throws InvalidPluginConfigurationException, Exception {
this.resourceContext = resourceContext;
}
public void stop() {
}
private Service getIISService() throws Win32Exception {
if (service == null) {
service = new Service(WINDOWS_SERVICE_NAME);
}
return service;
}
public AvailabilityType getAvailability() {
try {
return (getIISService().getStatus() == Service.SERVICE_RUNNING) ? AvailabilityType.UP
: AvailabilityType.DOWN;
} catch (Win32Exception e) {
log.warn("Unable to check status of IIS Windows service.");
}
return AvailabilityType.DOWN;
}
public void getValues(MeasurementReport report, Set<MeasurementScheduleRequest> metrics) throws Exception {
String propertyBase = "\\Web Service(_Total)\\";
Pdh pdh = new Pdh();
for (MeasurementScheduleRequest request : metrics) {
double value = pdh.getRawValue(propertyBase + request.getName());
report.addData(new MeasurementDataNumeric(request, value));
}
}
public OperationResult invokeOperation(String name, Configuration parameters) throws InterruptedException,
Exception {
OperationResult result = null;
try {
if ((parameters == null) || (parameters.getProperties().size() == 0)) {
if (name.equals("start")) {
getControlDelegate(null).start();
} else if (name.equals("stop")) {
getControlDelegate(null).stop();
} else {
// this should really never happen
throw new IllegalArgumentException("Operation [" + name + "] is not yet supported by this plugin");
}
} else {
// this should really never happen
throw new IllegalArgumentException("Operation [" + name + "] does not support params");
}
} catch (Exception e) {
// the operation may have affected availability, ask for a check
this.resourceContext.getAvailabilityContext().requestAvailabilityCheck();
throw new RuntimeException("Failed to invoke operation [" + name + "]", e);
}
// the operation may have affected availability, ask for a check
this.resourceContext.getAvailabilityContext().requestAvailabilityCheck();
return result;
}
private Win32ServiceControlDelegate getControlDelegate(Long timeout) throws Win32Exception {
Service iisService = getIISService();
String serviceName = iisService.getConfig().getName();
List<String> serviceDependencies = Arrays.asList(iisService.getConfig().getDependencies());
long serviceTimeout = (timeout == null ? SERVICE_CONTROL_TIMEOUT : timeout);
return new Win32ServiceControlDelegate(serviceName, serviceDependencies, null, serviceTimeout);
}
}