package org.ovirt.engine.core.bll.gluster;
import org.ovirt.engine.core.bll.NonTransactiveCommandAttribute;
import org.ovirt.engine.core.bll.context.CommandContext;
import org.ovirt.engine.core.common.AuditLogType;
import org.ovirt.engine.core.common.action.LockProperties;
import org.ovirt.engine.core.common.action.LockProperties.Scope;
import org.ovirt.engine.core.common.action.gluster.GlusterVolumeActionParameters;
import org.ovirt.engine.core.common.businessentities.gluster.GlusterStatus;
import org.ovirt.engine.core.common.businessentities.gluster.GlusterVolumeEntity;
import org.ovirt.engine.core.common.errors.EngineMessage;
import org.ovirt.engine.core.common.vdscommands.VDSCommandType;
import org.ovirt.engine.core.common.vdscommands.VDSReturnValue;
import org.ovirt.engine.core.common.vdscommands.gluster.GlusterVolumeActionVDSParameters;
/**
* BLL command to start a Gluster volume
*/
@NonTransactiveCommandAttribute
public class StartGlusterVolumeCommand extends GlusterVolumeCommandBase<GlusterVolumeActionParameters> {
public StartGlusterVolumeCommand(GlusterVolumeActionParameters params, CommandContext context) {
super(params, context);
}
@Override
protected LockProperties applyLockProperties(LockProperties lockProperties) {
return lockProperties.withScope(Scope.Execution).withWait(true);
}
@Override
protected void setActionMessageParameters() {
addValidationMessage(EngineMessage.VAR__ACTION__START);
addValidationMessage(EngineMessage.VAR__TYPE__GLUSTER_VOLUME);
}
@Override
protected boolean validate() {
if(! super.validate()) {
return false;
}
GlusterVolumeEntity volume = getGlusterVolume();
if (volume.isOnline() && !getParameters().isForceAction()) {
addValidationMessage(EngineMessage.ACTION_TYPE_FAILED_GLUSTER_VOLUME_ALREADY_STARTED);
addValidationMessageVariable("volumeName", volume.getName());
return false;
}
return true;
}
@Override
protected void executeCommand() {
VDSReturnValue returnValue =
runVdsCommand(
VDSCommandType.StartGlusterVolume,
new GlusterVolumeActionVDSParameters(upServer.getId(),
getGlusterVolumeName(), getParameters().isForceAction()));
setSucceeded(returnValue.getSucceeded());
if(getSucceeded()) {
glusterDBUtils.updateVolumeStatus(getParameters().getVolumeId(), GlusterStatus.UP);
/* Refresh volume details once the volume is started.
* A specific requirement for this was user might create a volume for the sake of using it for geo-replication.
* However, for suggesting volumes eligible for session creation, the size information of the volume is very important.
* Having the user to wait for the sync job to sync the volume detail might not be appropriate.
*/
glusterSyncJob.refreshVolumeDetails(upServer, glusterVolumeDao.getById(getParameters().getVolumeId()));
/* GlusterSyncJob.getInstance().refreshVolumeDetails(upServer, getGlusterVolume());
* will not suffice bcoz, getGlusterVolume fetches new volume only if its not yet been fetched from db and hence, refreshVolumeDetails figures out
* that the info about volume-bricks are stale and hence attempts a update and correspondingly raises events for brick state change.
* But here in the previous step we changed the volumes state(To GlusterStatus.UP) due to a successful execution of start command.
* Hence fetch the volume afresh after the state change and use it to refresh volume details.
*/
} else {
handleVdsError(AuditLogType.GLUSTER_VOLUME_START_FAILED, returnValue.getVdsError().getMessage());
return;
}
}
@Override
public AuditLogType getAuditLogTypeValue() {
if (getSucceeded()) {
return AuditLogType.GLUSTER_VOLUME_START;
} else {
return errorType == null ? AuditLogType.GLUSTER_VOLUME_START_FAILED : errorType;
}
}
}