org.rhq.plugins.virt.VirtualizationHostDiscoveryComponent Maven / Gradle / Ivy
/*
* 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.virt;
import java.util.HashSet;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rhq.core.domain.configuration.Configuration;
import org.rhq.core.domain.configuration.PropertySimple;
import org.rhq.core.domain.resource.ResourceType;
import org.rhq.core.pluginapi.inventory.DiscoveredResourceDetails;
import org.rhq.core.pluginapi.inventory.InvalidPluginConfigurationException;
import org.rhq.core.pluginapi.inventory.ManualAddFacet;
import org.rhq.core.pluginapi.inventory.ResourceDiscoveryComponent;
import org.rhq.core.pluginapi.inventory.ResourceDiscoveryContext;
import org.rhq.plugins.virt.LibVirtConnection.HVInfo;
/**
* Discovers Host and Guest information using
*/
public class VirtualizationHostDiscoveryComponent implements ResourceDiscoveryComponent, ManualAddFacet {
private Log log = LogFactory.getLog(getClass());
public Set discoverResources(ResourceDiscoveryContext resourceDiscoveryContext)
throws InvalidPluginConfigurationException, Exception {
Set details = new HashSet();
DiscoveredResourceDetails detail = getResource(resourceDiscoveryContext.getResourceType(),
resourceDiscoveryContext.getDefaultPluginConfiguration());
if (detail != null) {
details.add(detail);
}
return details;
}
DiscoveredResourceDetails getResource(ResourceType type, Configuration config) {
//Libvirt is smart enough to use the default when passing in an empty string
DiscoveredResourceDetails res = null;
LibVirtConnection virt;
try {
String uri = config.getSimpleValue("connectionURI", "");
//System.out.println(uri);
virt = new LibVirtConnection(uri);
HVInfo hi = virt.getHVInfo();
res = new DiscoveredResourceDetails(type, "VirtHost." + hi.hostname, hi.hvType + " Hypervisor", ""
+ hi.version, String.format("Libvirt Connection to a %s hypervisor", hi.hvType), null, null);
res.getPluginConfiguration().put(new PropertySimple("connectionURI", virt.getConnectionURI()));
virt.close();
} catch (Throwable t) {
String message = t.getMessage();
if (t.getCause()!=null) {
message += ": " + t.getCause().getMessage();
}
log.warn("Can not load libvirt: " + message);
}
return res;
}
public DiscoveredResourceDetails discoverResource(Configuration pluginConfiguration,
ResourceDiscoveryContext context) throws InvalidPluginConfigurationException {
return getResource(context.getResourceType(), pluginConfiguration);
}
}
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