/*
* 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.lvm.service;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import lcmc.configs.DistResource;
import lcmc.common.domain.Application;
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 LVM commands.
*/
public final class LVM {
private static final String SIZE_PLACE_HOLDER = "@SIZE@";
private static final String DEVICE_PLACE_HOLDER = "@DEVICE@";
private static final String LV_NAME_PLACE_HOLDER = "@LVNAME@";
private static final String VG_NAME_PLACE_HOLDER = "@VGNAME@";
/** Physical volume names placeholder, delimited with space. */
private static final String PV_NAMES_PLACE_HOLDER = "@PVNAMES@";
/**
* Executes the specified LVM command on the specified host and calls the
* supplied callback function.
*/
private static SshOutput execCommand(final Host host, final String command) {
return host.captureCommandProgressIndicator(Tools.getString("LVM.ExecutingCommand")
+ ' '
+ command.replaceAll(DistResource.SUDO, " ")
+ "...",
new ExecCommandConfig().command(command));
}
/** Resize LVM device. */
public static boolean resize(final Host host,
final String blockDevice,
final String size,
final Application.RunMode runMode) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put(SIZE_PLACE_HOLDER, size);
replaceHash.put(DEVICE_PLACE_HOLDER, blockDevice);
final String command = host.getHostParser().getDistCommand("LVM.resize", replaceHash);
final SshOutput ret = execCommand(host, command);
return ret.getExitCode() == 0;
}
/** Initialize a physical volume. */
public static boolean pvCreate(final Host host,
final String blockDevice,
final Application.RunMode runMode) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put(DEVICE_PLACE_HOLDER, blockDevice);
final String command = host.getHostParser().getDistCommand("LVM.pvcreate", replaceHash);
final SshOutput ret = execCommand(host, command);
return ret.getExitCode() == 0;
}
/** Remove a physical volume. */
public static boolean pvRemove(final Host host,
final String blockDevice,
final Application.RunMode runMode) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put(DEVICE_PLACE_HOLDER, blockDevice);
final String command = host.getHostParser().getDistCommand("LVM.pvremove", replaceHash);
final SshOutput ret = execCommand(host, command);
return ret.getExitCode() == 0;
}
/** Remove a volume group. */
public static boolean vgRemove(final Host host,
final String vgName,
final Application.RunMode runMode) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put(VG_NAME_PLACE_HOLDER, vgName);
final String command = host.getHostParser().getDistCommand("LVM.vgremove", replaceHash);
final SshOutput ret = execCommand(host, command);
return ret.getExitCode() == 0;
}
/** Remove LVM device. */
public static boolean lvRemove(final Host host,
final String blockDevice,
final Application.RunMode runMode) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put(DEVICE_PLACE_HOLDER, blockDevice);
final String command = host.getHostParser().getDistCommand("LVM.lvremove", replaceHash);
final SshOutput ret = execCommand(host, command);
return ret.getExitCode() == 0;
}
/** Create LVM device. */
public static boolean lvCreate(final Host host,
final String lvName,
final String vgName,
final String size,
final Application.RunMode runMode) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put(SIZE_PLACE_HOLDER, size);
replaceHash.put(LV_NAME_PLACE_HOLDER, lvName);
replaceHash.put(VG_NAME_PLACE_HOLDER, vgName);
final String command = host.getHostParser().getDistCommand("LVM.lvcreate", replaceHash);
final SshOutput ret = execCommand(host, command);
return ret.getExitCode() == 0;
}
public static boolean vgCreate(final Host host,
final String vgName,
final Collection<String> pvNames,
final Application.RunMode runMode) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put(PV_NAMES_PLACE_HOLDER, Tools.join(" ", pvNames));
replaceHash.put(VG_NAME_PLACE_HOLDER, vgName);
final String command = host.getHostParser().getDistCommand("LVM.vgcreate", replaceHash);
final SshOutput ret = execCommand(host, command);
return ret.getExitCode() == 0;
}
public static boolean createLVSnapshot(final Host host,
final String snapshotName,
final String device,
final String size,
final Application.RunMode runMode) {
final Map<String, String> replaceHash = new HashMap<String, String>();
replaceHash.put(SIZE_PLACE_HOLDER, size);
replaceHash.put(DEVICE_PLACE_HOLDER, device);
replaceHash.put(LV_NAME_PLACE_HOLDER, snapshotName);
final String command = host.getHostParser().getDistCommand("LVM.lvsnapshot", replaceHash);
final SshOutput ret = execCommand(host, command);
return ret.getExitCode() == 0;
}
private LVM() {
/* Cannot be instantiated. */
}
}