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ServiceRMImpl.java
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ServiceRMImpl.java
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/*
* Copyright 1999-2008 University of Chicago
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package org.nimbustools.messaging.gt4_0_elastic.v2008_05_05.rm;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nimbustools.api._repr._CreateRequest;
import org.nimbustools.api.brain.ModuleLocator;
import org.nimbustools.api.repr.Caller;
import org.nimbustools.api.repr.CannotTranslateException;
import org.nimbustools.api.repr.CreateRequest;
import org.nimbustools.api.repr.CreateResult;
import org.nimbustools.api.repr.ReprFactory;
import org.nimbustools.api.repr.vm.VM;
import org.nimbustools.api.services.metadata.MetadataServer;
import org.nimbustools.api.services.rm.ManageException;
import org.nimbustools.api.services.rm.Manager;
import org.nimbustools.messaging.gt4_0.common.AddCustomizations;
import org.nimbustools.messaging.gt4_0_elastic.generated.v2010_06_15.*;
import org.nimbustools.messaging.gt4_0_elastic.v2008_05_05.ServiceRM;
import org.nimbustools.messaging.gt4_0_elastic.v2008_05_05.service.UnimplementedOperations;
import java.rmi.RemoteException;
public class ServiceRMImpl extends UnimplementedOperations
implements ServiceRM {
// -------------------------------------------------------------------------
// STATIC VARIABLES
// -------------------------------------------------------------------------
private static final Log logger =
LogFactory.getLog(ServiceRMImpl.class.getName());
// -------------------------------------------------------------------------
// INSTANCE VARIABLES
// -------------------------------------------------------------------------
// nimbus API:
protected final Manager manager; // the real RM
protected final ReprFactory repr;
protected final MetadataServer mdServer;
// internal API:
protected final Run run;
protected final Terminate terminate;
protected final Reboot reboot;
protected final Describe describe;
protected final ContainerInterface container;
protected final RequestSI reqSI;
protected final CancelSI cancelSI;
protected final DescribeSI describeSI;
protected final DescribeSpotPriceHistory priceHistory;
// -------------------------------------------------------------------------
// CONSTRUCTORS
// -------------------------------------------------------------------------
public ServiceRMImpl(Run runImpl,
Terminate terminateImpl,
Reboot rebootImpl,
Describe describeImpl,
RequestSI reqSIImpl,
CancelSI cancelSIImpl,
DescribeSI describeSIImpl,
DescribeSpotPriceHistory priceHistoryImpl,
ContainerInterface containerImpl,
ModuleLocator locator) throws Exception {
if (runImpl == null) {
throw new IllegalArgumentException("runImpl may not be null");
}
this.run = runImpl;
if (terminateImpl == null) {
throw new IllegalArgumentException("terminateImpl may not be null");
}
this.terminate = terminateImpl;
if (rebootImpl == null) {
throw new IllegalArgumentException("rebootImpl may not be null");
}
this.reboot = rebootImpl;
if (describeImpl == null) {
throw new IllegalArgumentException("describeImpl may not be null");
}
this.describe = describeImpl;
if (reqSIImpl == null) {
throw new IllegalArgumentException("reqSIImpl may not be null");
}
this.reqSI = reqSIImpl;
if (cancelSIImpl == null) {
throw new IllegalArgumentException("reqSIImpl may not be null");
}
this.cancelSI = cancelSIImpl;
if (describeSIImpl == null) {
throw new IllegalArgumentException("reqSIImpl may not be null");
}
this.describeSI = describeSIImpl;
if (containerImpl == null) {
throw new IllegalArgumentException("containerImpl may not be null");
}
this.container = containerImpl;
if (priceHistoryImpl == null) {
throw new IllegalArgumentException("priceHistoryImpl may not be null");
}
this.priceHistory = priceHistoryImpl;
if (locator == null) {
throw new IllegalArgumentException("locator may not be null");
}
this.manager = locator.getManager();
this.repr = locator.getReprFactory();
this.mdServer = locator.getMetadataServer();
}
// -------------------------------------------------------------------------
// RUN
// -------------------------------------------------------------------------
public RunInstancesResponseType runInstances(RunInstancesType req)
throws RemoteException {
if (req == null) {
throw new RemoteException("RunInstancesType request is missing");
}
final Caller caller = this.container.getCaller();
final CreateResult result;
try {
CreateRequest creq =
this.run.translateRunInstances(req, caller);
AddCustomizations.addAll((_CreateRequest)creq,
this.repr, this.mdServer);
result = this.manager.create(creq, caller);
} catch (Exception e) {
throw new RemoteException(e.getMessage(), e);
}
final String keyname = req.getKeyName();
try {
return this.run.translateCreateResult(result, caller, keyname);
} catch (Exception e) {
final String err = "Problem translating valid creation " +
"result into elastic protocol. Backout required. " +
" Error: " + e.getMessage();
logger.error(err, e);
this.terminate.backOutCreateResult(result, caller, this.manager);
// gets caught by Throwable hook:
throw new RuntimeException(err, e);
}
}
// -------------------------------------------------------------------------
// REBOOT
// -------------------------------------------------------------------------
public RebootInstancesResponseType rebootInstances(RebootInstancesType req)
throws RemoteException {
if (req == null) {
throw new RemoteException("DescribeInstancesType request is missing");
}
final Caller caller = this.container.getCaller();
final boolean result = this.reboot.reboot(req, caller, this.manager);
return new RebootInstancesResponseType(result, "");
// TODO do something real with requestId
}
// -------------------------------------------------------------------------
// DESCRIBE
// -------------------------------------------------------------------------
public DescribeInstancesResponseType describeInstances(
DescribeInstancesType req)
throws RemoteException {
if (req == null) {
throw new RemoteException("DescribeInstancesType request is missing");
}
final Caller caller = this.container.getCaller();
try {
final String[] instanceIDs = this.describe.findQueryIDs(req);
final VM[] vms = this.manager.getAllByCaller(caller);
final String ownerID = this.container.getOwnerID(caller);
return this.describe.translate(vms, instanceIDs, ownerID);
} catch (ManageException e) {
throw new RemoteException(e.getMessage(), e);
} catch (CannotTranslateException e) {
throw new RemoteException(e.getMessage(), e);
}
}
// -------------------------------------------------------------------------
// TERMINATE
// -------------------------------------------------------------------------
public TerminateInstancesResponseType terminateInstances(
TerminateInstancesType req)
throws RemoteException {
if (req == null) {
throw new RemoteException("TerminateInstancesType request is missing");
}
final Caller caller = this.container.getCaller();
return this.terminate.terminate(req, caller, this.manager);
}
// -------------------------------------------------------------------------
// SI OPERATIONS
// -------------------------------------------------------------------------
public RequestSpotInstancesResponseType requestSpotInstances(
RequestSpotInstancesType req)
throws RemoteException {
if (req == null) {
throw new RemoteException("requestSpotInstances request is missing");
}
final Caller caller = this.container.getCaller();
return this.reqSI.requestSpotInstances(req, caller, this.manager);
}
public CancelSpotInstanceRequestsResponseType cancelSpotInstanceRequests(
CancelSpotInstanceRequestsType req)
throws RemoteException {
if (req == null) {
throw new RemoteException("CancelSpotInstanceRequestsType request is missing");
}
final Caller caller = this.container.getCaller();
return this.cancelSI.cancelSIRequests(req, caller, this.manager);
}
public DescribeSpotInstanceRequestsResponseType describeSpotInstanceRequests(
DescribeSpotInstanceRequestsType req)
throws RemoteException {
if (req == null) {
throw new RemoteException("CancelSpotInstanceRequestsType request is missing");
}
final Caller caller = this.container.getCaller();
return this.describeSI.describeSIRequests(req, caller, manager);
}
public DescribeSpotPriceHistoryResponseType describeSpotPriceHistory(
DescribeSpotPriceHistoryType req)
throws RemoteException {
if (req == null) {
throw new RemoteException("CancelSpotInstanceRequestsType request is missing");
}
return this.priceHistory.describeSpotPriceHistory(req, manager);
}
}