Mercurial > hg > release > thermostat-0.9
view system-backend/src/main/java/com/redhat/thermostat/backend/system/osgi/SystemBackendActivator.java @ 1102:8757e35030f2
Add user ID to VmInfo and display in clients
This commit adds user ID information to the VmInfo Pojo, which is
gathered by SystemBackend. The UID for a VM is collected by parsing
/proc/${pid}/status, and we then get the username for the UID from the
native function getpwuid_r. Both the vm-info command and the VM Overview
tab of the Swing GUI now show the user under Process Information. I took
inspiration from the id Unix program for the formatting, which is
"uid(username)". The native component of this commit is added to
agent-core for use by system-backend, this was done on request by Mario
since agent-core already has a native component for getting the
hostname. I made this component an OSGi service primarily to hide its
implementation details.
Reviewed-by: omajid, jerboaa
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-May/006674.html
author | Elliott Baron <ebaron@redhat.com> |
---|---|
date | Tue, 21 May 2013 12:43:17 -0400 |
parents | 0d9534310a17 |
children |
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/* * Copyright 2012, 2013 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat 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; either version 2, or (at your * option) any later version. * * Thermostat 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 Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.backend.system.osgi; import java.util.Map; import org.osgi.framework.BundleActivator; import org.osgi.framework.BundleContext; import org.osgi.framework.ServiceRegistration; import com.redhat.thermostat.backend.Backend; import com.redhat.thermostat.backend.BackendService; import com.redhat.thermostat.backend.system.SystemBackend; import com.redhat.thermostat.backend.system.VmStatusChangeNotifier; import com.redhat.thermostat.common.MultipleServiceTracker; import com.redhat.thermostat.common.MultipleServiceTracker.Action; import com.redhat.thermostat.common.Version; import com.redhat.thermostat.storage.dao.HostInfoDAO; import com.redhat.thermostat.storage.dao.NetworkInterfaceInfoDAO; import com.redhat.thermostat.storage.dao.VmInfoDAO; import com.redhat.thermostat.utils.username.UserNameUtil; @SuppressWarnings("rawtypes") public class SystemBackendActivator implements BundleActivator { private MultipleServiceTracker tracker; private SystemBackend backend; private ServiceRegistration reg; private VmStatusChangeNotifier notifier; @Override public void start(final BundleContext context) throws Exception { notifier = new VmStatusChangeNotifier(context); notifier.start(); Class<?>[] deps = new Class<?>[] { BackendService.class, HostInfoDAO.class, NetworkInterfaceInfoDAO.class, VmInfoDAO.class, UserNameUtil.class }; tracker = new MultipleServiceTracker(context, deps, new Action() { @Override public void dependenciesAvailable(Map<String, Object> services) { HostInfoDAO hostInfoDAO = (HostInfoDAO) services.get(HostInfoDAO.class.getName()); NetworkInterfaceInfoDAO netInfoDAO = (NetworkInterfaceInfoDAO) services .get(NetworkInterfaceInfoDAO.class.getName()); VmInfoDAO vmInfoDAO = (VmInfoDAO) services.get(VmInfoDAO.class.getName()); UserNameUtil userNameUtil = (UserNameUtil) services.get(UserNameUtil.class.getName()); Version version = new Version(context.getBundle()); backend = new SystemBackend(hostInfoDAO, netInfoDAO, vmInfoDAO, version, notifier, userNameUtil); reg = context.registerService(Backend.class, backend, null); } @Override public void dependenciesUnavailable() { if (backend.isActive()) { backend.deactivate(); } reg.unregister(); } }); tracker.open(); } @Override public void stop(BundleContext context) throws Exception { if (backend != null && backend.isActive()) { backend.deactivate(); } tracker.close(); notifier.stop(); } }