Mercurial > hg > release > thermostat-0.9
view client/cli/src/main/java/com/redhat/thermostat/client/cli/internal/VMInfoCommand.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 | c469675494d7 |
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.client.cli.internal; import java.io.PrintStream; import java.util.Collection; import java.util.Date; import org.osgi.framework.BundleContext; import org.osgi.framework.FrameworkUtil; import org.osgi.framework.ServiceReference; import com.redhat.thermostat.client.cli.HostVMArguments; import com.redhat.thermostat.common.cli.AbstractCommand; import com.redhat.thermostat.common.cli.CommandContext; import com.redhat.thermostat.common.cli.CommandException; import com.redhat.thermostat.common.cli.TableRenderer; import com.redhat.thermostat.common.locale.Translate; import com.redhat.thermostat.storage.core.HostRef; import com.redhat.thermostat.storage.core.VmRef; import com.redhat.thermostat.storage.dao.DAOException; import com.redhat.thermostat.storage.dao.VmInfoDAO; import com.redhat.thermostat.storage.model.VmInfo; public class VMInfoCommand extends AbstractCommand { private static final Translate<LocaleResources> translator = LocaleResources.createLocalizer(); private static final String STILL_ALIVE = translator.localize(LocaleResources.VM_STOP_TIME_RUNNING).getContents(); private final BundleContext context; public VMInfoCommand() { this(FrameworkUtil.getBundle(VMInfoCommand.class).getBundleContext()); } /** For tests only */ VMInfoCommand(BundleContext context) { this.context = context; } @Override public void run(CommandContext ctx) throws CommandException { ServiceReference vmsDAORef = context.getServiceReference(VmInfoDAO.class.getName()); if (vmsDAORef == null) { throw new CommandException(translator.localize(LocaleResources.VM_SERVICE_UNAVAILABLE)); } VmInfoDAO vmsDAO = (VmInfoDAO) context.getService(vmsDAORef); HostVMArguments hostVMArgs = new HostVMArguments(ctx.getArguments(), true, false); HostRef host = hostVMArgs.getHost(); VmRef vm = hostVMArgs.getVM(); try { if (vm != null) { getAndPrintVMInfo(ctx, vmsDAO, vm); } else { getAndPrintAllVMInfo(ctx, vmsDAO, host); } } catch (DAOException ex) { ctx.getConsole().getError().println(ex.getMessage()); } finally { context.ungetService(vmsDAORef); } } private void getAndPrintAllVMInfo(CommandContext ctx, VmInfoDAO vmsDAO, HostRef host) { Collection<VmRef> vms = vmsDAO.getVMs(host); for (VmRef vm : vms) { getAndPrintVMInfo(ctx, vmsDAO, vm); } } private void getAndPrintVMInfo(CommandContext ctx, VmInfoDAO vmsDAO, VmRef vm) { VmInfo vmInfo = vmsDAO.getVmInfo(vm); TableRenderer table = new TableRenderer(2); table.printLine(translator.localize(LocaleResources.VM_INFO_PROCESS_ID).getContents(), String.valueOf(vmInfo.getVmPid())); table.printLine(translator.localize(LocaleResources.VM_INFO_START_TIME).getContents(), new Date(vmInfo.getStartTimeStamp()).toString()); if (vmInfo.isAlive()) { table.printLine(translator.localize(LocaleResources.VM_INFO_STOP_TIME).getContents(), STILL_ALIVE); } else { table.printLine(translator.localize(LocaleResources.VM_INFO_STOP_TIME).getContents(), new Date(vmInfo.getStopTimeStamp()).toString()); } printUserInfo(vmInfo, table); table.printLine(translator.localize(LocaleResources.VM_INFO_MAIN_CLASS).getContents(), vmInfo.getMainClass()); table.printLine(translator.localize(LocaleResources.VM_INFO_COMMAND_LINE).getContents(), vmInfo.getJavaCommandLine()); table.printLine(translator.localize(LocaleResources.VM_INFO_JAVA_VERSION).getContents(), vmInfo.getJavaVersion()); table.printLine(translator.localize(LocaleResources.VM_INFO_VIRTUAL_MACHINE).getContents(), vmInfo.getVmName()); table.printLine(translator.localize(LocaleResources.VM_INFO_VM_ARGUMENTS).getContents(), vmInfo.getVmArguments()); PrintStream out = ctx.getConsole().getOutput(); table.render(out); } private void printUserInfo(VmInfo vmInfo, TableRenderer table) { // Check if we have valid user info long uid = vmInfo.getUid(); String user; if (uid >= 0) { user = String.valueOf(uid); String username = vmInfo.getUsername(); if (username != null) { user += "(" + username + ")"; } } else { user = translator.localize(LocaleResources.VM_INFO_USER_UNKNOWN).getContents(); } table.printLine(translator.localize(LocaleResources.VM_INFO_USER).getContents(), user); } }