Mercurial > hg > release > thermostat-1.6
view vm-gc/command/src/main/java/com/redhat/thermostat/vm/gc/command/internal/ShowGcNameCommand.java @ 2049:a92d602216ad
Update copyright license headers for 2017
PR3290
Reviewed-by: jerboaa
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2017-January/021974.html
author | Andrew Azores <aazores@redhat.com> |
---|---|
date | Tue, 17 Jan 2017 12:19:56 -0500 |
parents | 31f274ab27a5 |
children |
line wrap: on
line source
/* * Copyright 2012-2017 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.vm.gc.command.internal; import java.io.PrintStream; import java.util.Set; 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.DependencyServices; import com.redhat.thermostat.shared.locale.LocalizedString; import com.redhat.thermostat.shared.locale.Translate; import com.redhat.thermostat.storage.core.VmId; import com.redhat.thermostat.storage.core.VmRef; import com.redhat.thermostat.storage.dao.VmInfoDAO; import com.redhat.thermostat.storage.model.VmInfo; import com.redhat.thermostat.vm.gc.command.locale.LocaleResources; import com.redhat.thermostat.vm.gc.common.GcCommonNameMapper; import com.redhat.thermostat.vm.gc.common.GcCommonNameMapper.CollectorCommonName; import com.redhat.thermostat.vm.gc.common.VmGcStatDAO; public class ShowGcNameCommand extends AbstractCommand { // The name as which this command is registered. static final String REGISTER_NAME = "show-gc-name"; private static final Translate<LocaleResources> translator = LocaleResources.createLocalizer(); private static final GcCommonNameMapper mapper = new GcCommonNameMapper(); private final DependencyServices services = new DependencyServices(); private VmInfoDAO vmInfoDao; private VmGcStatDAO gcDao; @Override public void run(CommandContext ctx) throws CommandException { this.vmInfoDao = services.getService(VmInfoDAO.class); this.gcDao = services.getService(VmGcStatDAO.class); requireNonNull(vmInfoDao, translator.localize(LocaleResources.VM_SERVICE_UNAVAILABLE)); requireNonNull(gcDao, translator.localize(LocaleResources.GC_STAT_DAO_SERVICE_UNAVAILABLE)); HostVMArguments args = new HostVMArguments(ctx.getArguments(), false, true); VmInfo vmInfo = checkVmExists(args.getVM().getVmId(), translator.localize(LocaleResources.VM_NOT_FOUND, args.getVM().getVmId())); PrintStream out = ctx.getConsole().getOutput(); CollectorCommonName commonName = getCommonName(args.getVM()); String msg = translator.localize(LocaleResources.GC_COMMON_NAME_SUCCESS_MSG, vmInfo.getVmId(), vmInfo.getMainClass(), commonName.getHumanReadableString()) .getContents(); out.println(msg); } void setVmInfo(VmInfoDAO vmInfoDAO) { services.addService(VmInfoDAO.class, vmInfoDAO); } void setVmGcStat(VmGcStatDAO vmGcStat) { services.addService(VmGcStatDAO.class, vmGcStat); } void servicesUnavailable() { services.removeService(VmInfoDAO.class); services.removeService(VmGcStatDAO.class); } /** * Checks that a VM record exists in storage and if not throws a * command exception with an appropriate message. * * @param vmId The VM ID to look up in storage. * @param errorMsg The error message to use for when VM is not found. * @return A non-null VmInfo. * @throws CommandException If the VM could not be found in storage. */ private VmInfo checkVmExists(String vmId, LocalizedString errorMsg) throws CommandException { VmInfo vmInfo = vmInfoDao.getVmInfo(new VmId(vmId)); if (vmInfo == null) { throw new CommandException(errorMsg); } return vmInfo; } /** * Finds the common name of the GC algorithm used for a given VM. * @param vmInfo The info for the VM in question. * @return A common name of the GC algorithm or {@code CollectorCommonName#UNKNOWN_COLLECTOR}. */ private CollectorCommonName getCommonName(VmRef vmRef) { Set<String> distinctCollectors = gcDao.getDistinctCollectorNames(vmRef); CollectorCommonName commonName = CollectorCommonName.UNKNOWN_COLLECTOR; if (distinctCollectors.size() > 0) { commonName = mapper.mapToCommonName(distinctCollectors); } return commonName; } }