/*
* RHQ Management Platform
* Copyright (C) 2005-2011 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, version 2, as
* published by the Free Software Foundation, and/or the GNU Lesser
* General Public License, version 2.1, also as published by the Free
* Software Foundation.
*
* 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 and the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* and the GNU Lesser General Public License along with this program;
* if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.rhq.plugins.platform;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rhq.core.domain.measurement.AvailabilityType;
import org.rhq.core.domain.measurement.MeasurementDataNumeric;
import org.rhq.core.domain.measurement.MeasurementDataTrait;
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.util.ObjectUtil;
import org.rhq.core.system.FileSystemInfo;
import org.rhq.core.system.SystemInfo;
/**
* @author Greg Hinkle
*/
public class FileSystemComponent implements ResourceComponent<PlatformComponent>, MeasurementFacet {
private static final Log LOG = LogFactory.getLog(FileSystemComponent.class);
private ResourceContext<PlatformComponent> resourceContext;
public void start(ResourceContext<PlatformComponent> resourceContext) throws InvalidPluginConfigurationException,
Exception {
this.resourceContext = resourceContext;
}
public void stop() {
}
public AvailabilityType getAvailability() {
FileSystemInfo fileSystemInfo = getFileSystemInfo();
if (fileSystemInfo != null && fileSystemInfo.getFileSystem() != null
&& this.resourceContext.getResourceKey().equals(fileSystemInfo.getFileSystem().getDirName())) {
return AvailabilityType.UP;
} else {
return AvailabilityType.DOWN;
}
}
public void getValues(MeasurementReport report, Set<MeasurementScheduleRequest> requests) throws Exception {
FileSystemInfo fileSystemInfo = getFileSystemInfo();
for (MeasurementScheduleRequest request : requests) {
try {
switch (request.getDataType()) {
case TRAIT:
Object object = ObjectUtil.lookupDeepAttributeProperty(fileSystemInfo, request.getName());
report.addData(new MeasurementDataTrait(request, String.valueOf(object)));
break;
case MEASUREMENT:
Double value = ObjectUtil.lookupDeepNumericAttributeProperty(fileSystemInfo, request.getName());
report.addData(new MeasurementDataNumeric(request, value));
break;
default:
throw new IllegalStateException("Unsupported metric type: " + request.getDataType());
}
} catch (Exception e) {
LOG.info("Unable to collect metric [" + request.getName() + "] on filesystem resource ["
+ this.resourceContext.getResourceKey() + "].", e);
}
}
}
private FileSystemInfo getFileSystemInfo() {
SystemInfo systemInfo = resourceContext.getSystemInformation();
return systemInfo.getFileSystem(resourceContext.getResourceKey());
}
}