/*
* This file is part of DRBD Management Console by LINBIT HA-Solutions GmbH
* written by Rasto Levrinc.
*
* Copyright (C) 2009, LINBIT HA-Solutions GmbH.
* Copyright (C) 2011-2012, Rastislav Levrinc.
*
* DRBD Management Console 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.
*
* DRBD Management Console 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 drbd; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package lcmc.vm.service;
import java.util.HashMap;
import java.util.Map;
import lcmc.configs.DistResource;
import lcmc.host.domain.Host;
import lcmc.common.domain.util.Tools;
import lcmc.cluster.service.ssh.ExecCommandConfig;
import lcmc.cluster.service.ssh.SshOutput;
/**
* This class provides virsh commands.
*/
public final class VIRSH {
private static final Map<String, String> VIRSH_COMMANDS = new HashMap<String, String>();
static {
VIRSH_COMMANDS.put("autostart", "VIRSH.Autostart");
}
/** Executes the specified virsh commands on the specified host. */
private static boolean execCommand(final Host host, final String commands) {
if (host.isConnected()) {
final SshOutput ret = host.captureCommandProgressIndicator(Tools.getString("VIRSH.ExecutingCommand")
+ ' '
+ commands.replaceAll(DistResource.SUDO, " ")
+ "...",
new ExecCommandConfig().command(commands));
if (ret.getExitCode() != 0) {
return false;
}
}
return true;
}
/** Executes the specified virsh commands on the specified hosts. */
private static boolean execCommand(final Host[] hosts, final Map<Host, String> hostCommands) {
for (final Host host : hosts) {
final String commands = hostCommands.get(host);
if (!commands.isEmpty() && !execCommand(host, commands)) {
return false;
}
}
return true;
}
/** Sets paramters with virsh command. */
public static void setParameters(final Host[] hosts,
final String domainName,
final Map<String, String> parameters,
final String options) {
final Map<Host, String> hostCommands = new HashMap<Host, String>();
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@DOMAIN@", domainName);
replaceHash.put("@OPTIONS@", options);
for (final Host host : hosts) {
final StringBuilder commands = new StringBuilder(100);
for (final Map.Entry<String, String> paramEntry : parameters.entrySet()) {
String command = host.getDistCommand(VIRSH_COMMANDS.get(paramEntry.getKey()), replaceHash);
if (command == null) {
continue;
}
if (command.contains("@VALUE@")) {
String value = paramEntry.getValue();
if ("autostart".equals(paramEntry.getKey())) {
if (value == null || !value.equals(host.getName())) {
value = "--disable";
} else {
value = "";
}
}
command = command.replaceAll("@VALUE@", value);
}
if (commands.length() > 0) {
commands.append(" && ");
}
commands.append(command);
hostCommands.put(host, commands.toString());
}
}
execCommand(hosts, hostCommands);
}
/** Starts virtual domain. */
public static boolean start(final Host host, final String domain, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@DOMAIN@", domain);
replaceHash.put("@OPTIONS@", options);
final String command = host.getDistCommand("VIRSH.Start", replaceHash);
return execCommand(host, command);
}
/** Shuts down virtual domain. */
public static boolean shutdown(final Host host, final String domain, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@DOMAIN@", domain);
replaceHash.put("@OPTIONS@", options);
final String command = host.getDistCommand("VIRSH.Shutdown", replaceHash);
return execCommand(host, command);
}
/** Reboots virtual domain. */
public static boolean reboot(final Host host, final String domain, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@DOMAIN@", domain);
replaceHash.put("@OPTIONS@", options);
final String command = host.getDistCommand("VIRSH.Reboot", replaceHash);
return execCommand(host, command);
}
/** Destroys virtual domain. */
public static boolean destroy(final Host host, final String domain, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@DOMAIN@", domain);
replaceHash.put("@OPTIONS@", options);
final String command = host.getDistCommand("VIRSH.Destroy", replaceHash);
return execCommand(host, command);
}
/** Suspends virtual domain. */
public static boolean suspend(final Host host, final String domain, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@DOMAIN@", domain);
replaceHash.put("@OPTIONS@", options);
final String command = host.getDistCommand("VIRSH.Suspend", replaceHash);
return execCommand(host, command);
}
/** Resumes virtual domain. */
public static boolean resume(final Host host, final String domain, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@DOMAIN@", domain);
replaceHash.put("@OPTIONS@", options);
final String command = host.getDistCommand("VIRSH.Resume", replaceHash);
return execCommand(host, command);
}
/**
* Defines virtual domain. It rereads the config from XML, but does not
* start the domain like "create" would.
*/
public static boolean define(final Host host, final String config, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@CONFIG@", config);
replaceHash.put("@OPTIONS@", options);
final String command = host.getDistCommand("VIRSH.Define", replaceHash);
return execCommand(host, command);
}
/** Returns command that defines virtual domain. */
public static String getDefineCommand(final Host host, final String config, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@CONFIG@", config);
replaceHash.put("@OPTIONS@", options);
return host.getDistCommand("VIRSH.Define", replaceHash);
}
/** Undefines virtual domain. It removes the config. */
public static boolean undefine(final Host host, final String domain, final String options) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put("@DOMAIN@", domain);
replaceHash.put("@OPTIONS@", options);
final String command = host.getDistCommand("VIRSH.Undefine", replaceHash);
return execCommand(host, command);
}
private VIRSH() {
/* Cannot be instantiated. */
}
}