/*******************************************************************************
*Copyright (c) 2009 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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* Please contact Eucalyptus Systems, Inc., 130 Castilian
* Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/>
* if you need additional information or have any questions.
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*
* Software License Agreement (BSD License)
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* Copyright (c) 2008, Regents of the University of California
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*******************************************************************************/
/*
* Author: chris grzegorczyk <grze@eucalyptus.com>
*/
package com.eucalyptus.cluster.callback;
import java.util.NoSuchElementException;
import org.apache.log4j.Logger;
import com.eucalyptus.address.Address;
import com.eucalyptus.address.AddressCategory;
import com.eucalyptus.address.Addresses;
import com.eucalyptus.address.Address.Transition;
import com.eucalyptus.cluster.Clusters;
import com.eucalyptus.cluster.VmInstance;
import com.eucalyptus.cluster.VmInstances;
import com.eucalyptus.records.EventRecord;
import com.eucalyptus.records.EventType;
import com.eucalyptus.util.EucalyptusCloudException;
import com.eucalyptus.util.LogUtil;
import com.eucalyptus.vm.VmState;
import edu.ucsb.eucalyptus.msgs.AssignAddressResponseType;
import edu.ucsb.eucalyptus.msgs.AssignAddressType;
public class AssignAddressCallback extends QueuedEventCallback<AssignAddressType,AssignAddressResponseType> {
private static Logger LOG = Logger.getLogger( AssignAddressCallback.class );
private Address address;
public AssignAddressCallback( Address address ) {
this.address = address;
super.setRequest( new AssignAddressType( address.getName( ), address.getInstanceAddress( ), address.getInstanceId( ) ) );
}
@Override
public void prepare( AssignAddressType msg ) throws Exception {
if( VmInstance.DEFAULT_IP.equals( this.getRequest( ).getDestination( ) ) ) {
VmInstance vm = VmInstances.getInstance( ).lookup( address.getInstanceId( ) );
String privAddr = vm.getPrivateAddress( );
if( VmInstance.DEFAULT_IP.equals( privAddr ) ) {
throw new EucalyptusCloudException( "BUG: Failing to assign address because the vm's private address is 0.0.0.0!: " + vm.toString( ) );
} else {
this.getRequest( ).setDestination( privAddr );
}
}
EventRecord.here( AssignAddressCallback.class, EventType.ADDRESS_ASSIGNING, Transition.assigning.toString( ), address.toString( ) ).debug( );
}
@Override
public void verify( AssignAddressResponseType msg ) throws Exception {
try {
this.updateState( );
} catch ( IllegalStateException e ) {
AddressCategory.unassign( address ).dispatch( address.getCluster( ) );
} catch ( Exception e ) {
LOG.debug( e, e );
AddressCategory.unassign( address ).dispatch( address.getCluster( ) );
}
}
@Override
public void fail( Throwable e ) {
LOG.debug( e, e );
this.cleanupState( );
}
private boolean checkVmState( ) {
try {
VmInstance vm = VmInstances.getInstance( ).lookup( super.getRequest().getInstanceId( ) );
VmState vmState = vm.getState( );
if ( !VmState.RUNNING.equals( vmState ) && !VmState.PENDING.equals( vmState ) ) {
vm.updatePublicAddress( VmInstance.DEFAULT_IP );
return false;
} else {
vm.updatePublicAddress( this.address.getName( ) );
return true;
}
} catch ( NoSuchElementException e ) {
return false;
}
}
private void updateState( ) {
if( !this.checkVmState( ) ) {
this.address.clearPending( );
throw new IllegalStateException( "Failed to find the vm for this assignment: " + this.getRequest( ) );
} else {
EventRecord.here( AssignAddressCallback.class, EventType.ADDRESS_ASSIGNED, Address.State.assigned.toString( ), LogUtil.dumpObject( address ) ).info( );
this.address.clearPending( );
}
}
private void cleanupState( ) {
EventRecord.here( AssignAddressCallback.class, EventType.ADDRESS_ASSIGNING, Transition.assigning.toString( ), LogUtil.FAIL, address.toString( ) ).debug( );
LOG.debug( LogUtil.subheader( this.getRequest( ).toString( ) ) );
if( this.address.isPending( ) ) {
this.address.clearPending( );
} else if( this.address.isSystemOwned( ) ) {
Addresses.release( address );
} else if( this.address.isAssigned( ) ) {
AddressCategory.unassign( address );
}
}
}