/*******************************************************************************
*Copyright (c) 2009 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
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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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* Copyright (c) 2008, Regents of the University of California
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/*
*
* Author: chris grzegorczyk <grze@eucalyptus.com>
*/
package com.eucalyptus.address;
import org.apache.log4j.Logger;
import com.eucalyptus.cluster.UnconditionalCallback;
import com.eucalyptus.cluster.VmInstance;
import com.eucalyptus.cluster.VmInstances;
import com.eucalyptus.util.EucalyptusCloudException;
import com.eucalyptus.util.NotEnoughResourcesAvailable;
import edu.ucsb.eucalyptus.msgs.AllocateAddressResponseType;
import edu.ucsb.eucalyptus.msgs.AllocateAddressType;
import edu.ucsb.eucalyptus.msgs.AssociateAddressResponseType;
import edu.ucsb.eucalyptus.msgs.AssociateAddressType;
import edu.ucsb.eucalyptus.msgs.DescribeAddressesResponseItemType;
import edu.ucsb.eucalyptus.msgs.DescribeAddressesResponseType;
import edu.ucsb.eucalyptus.msgs.DescribeAddressesType;
import edu.ucsb.eucalyptus.msgs.DisassociateAddressResponseType;
import edu.ucsb.eucalyptus.msgs.DisassociateAddressType;
import edu.ucsb.eucalyptus.msgs.ReleaseAddressResponseType;
import edu.ucsb.eucalyptus.msgs.ReleaseAddressType;
public class AddressManager {
public static Logger LOG = Logger.getLogger( AddressManager.class );
public AllocateAddressResponseType AllocateAddress( AllocateAddressType request ) throws EucalyptusCloudException {
AllocateAddressResponseType reply = ( AllocateAddressResponseType ) request.getReply( );
String userId = request.getUserId( );
Address address;
try {
address = Addresses.allocate( userId, request.isAdministrator( ) );
} catch ( NotEnoughResourcesAvailable e ) {
LOG.debug( e, e );
throw new EucalyptusCloudException( e );
}
reply.setPublicIp( address.getName( ) );
return reply;
}
public ReleaseAddressResponseType ReleaseAddress( ReleaseAddressType request ) throws EucalyptusCloudException {
ReleaseAddressResponseType reply = ( ReleaseAddressResponseType ) request.getReply( );
reply.set_return( false );
Addresses.updateAddressingMode( );
Address address = Addresses.restrictedLookup( request.getUserId( ), request.isAdministrator( ), request.getPublicIp( ) );
address.release( );
Addresses.release( address );
reply.set_return( true );
return reply;
}
public DescribeAddressesResponseType DescribeAddresses( DescribeAddressesType request ) throws EucalyptusCloudException {
DescribeAddressesResponseType reply = ( DescribeAddressesResponseType ) request.getReply( );
Addresses.updateAddressingMode( );
boolean isAdmin = request.isAdministrator( );
for ( Address address : Addresses.getInstance( ).listValues( ) ) {
if ( isAdmin || address.getUserId( ).equals( request.getUserId( ) ) ) {
reply.getAddressesSet( ).add( address.getDescription( isAdmin ) );
}
}
if ( isAdmin ) {
for ( Address address : Addresses.getInstance( ).listDisabledValues( ) ) {
reply.getAddressesSet( ).add( new DescribeAddressesResponseItemType( address.getName( ), Address.UNALLOCATED_USERID ) );
}
}
return reply;
}
@SuppressWarnings( "unchecked" )
public AssociateAddressResponseType AssociateAddress( final AssociateAddressType request ) throws Exception {
AssociateAddressResponseType reply = ( AssociateAddressResponseType ) request.getReply( );
reply.set_return( false );
Addresses.updateAddressingMode( );
final Address address = Addresses.restrictedLookup( request.getUserId( ), request.isAdministrator( ), request.getPublicIp( ) );//TODO: test should throw error.
final VmInstance vm = VmInstances.restrictedLookup( request.getUserId( ), request.isAdministrator( ), request.getInstanceId( ) );
final VmInstance oldVm = findCurrentAssignedVm( address );
final Address oldAddr = findVmExistingAddress( vm );
final boolean oldAddrSystem = oldAddr != null ? oldAddr.isSystemOwned( ) : false;
reply.set_return( true );
final UnconditionalCallback assignTarget = new UnconditionalCallback( ) {
public void apply( ) {
AddressCategory.assign( address, vm ).dispatch( address.getCluster( ) );
if ( oldAddrSystem ) {
oldAddr.release( );
}
if ( oldVm != null ) {
Addresses.system( oldVm );
}
}
};
final UnconditionalCallback unassignBystander = new UnconditionalCallback( ) {
public void apply( ) {
if ( oldAddr != null ) {
AddressCategory.unassign( oldAddr ).then( assignTarget ).dispatch( oldAddr.getCluster( ) );
} else {
assignTarget.apply( );
}
}
};
if ( address.isAssigned( ) ) {
address.unassign( ).getCallback( ).then( unassignBystander ).dispatch( oldAddr.getCluster( ) );
} else {
unassignBystander.apply( );
}
return reply;
}
private Address findVmExistingAddress( final VmInstance vm ) {
Address oldAddr = null;
if ( vm.hasPublicAddress( ) ) {
try {
oldAddr = Addresses.getInstance( ).lookup( vm.getPublicAddress( ) );
} catch ( Exception e ) {
LOG.debug( e, e );
}
}
return oldAddr;
}
private VmInstance findCurrentAssignedVm( Address address ) {
VmInstance oldVm = null;
if ( address.isAssigned( ) && !address.isPending( ) ) {
try {
oldVm = VmInstances.getInstance( ).lookup( address.getInstanceId( ) );
} catch ( Exception e ) {
LOG.error( e, e );
}
}
return oldVm;
}
public DisassociateAddressResponseType DisassociateAddress( DisassociateAddressType request ) throws EucalyptusCloudException {
DisassociateAddressResponseType reply = ( DisassociateAddressResponseType ) request.getReply( );
reply.set_return( false );
Addresses.updateAddressingMode( );
final Address address = Addresses.restrictedLookup( request.getUserId( ), request.isAdministrator( ), request.getPublicIp( ) );
reply.set_return( true );
final String vmId = address.getInstanceId( );
if ( address.isSystemOwned( ) && !request.isAdministrator( ) ) {
throw new EucalyptusCloudException( "Only administrators can unassign system owned addresses: " + address.toString( ) );
} else {
try {
if ( address.isSystemOwned( ) ) {
AddressCategory.unassign( address ).then( new UnconditionalCallback( ) {
public void apply( ) {
address.release( );
try {
Addresses.system( VmInstances.getInstance( ).lookup( vmId ) );
} catch ( Exception e ) {
LOG.debug( e, e );
}
}
} ).dispatch( address.getCluster( ) );
} else {
AddressCategory.unassign( address ).then( new UnconditionalCallback( ) {
@Override
public void apply( ) {
try {
Addresses.system( VmInstances.getInstance( ).lookup( vmId ) );
} catch ( Exception e ) {
LOG.debug( e, e );
}
}
} ).dispatch( address.getCluster( ) );
}
} catch ( Throwable e ) {
LOG.debug( e, e );
}
}
return reply;
}
}