/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.deployers.plugins.main;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import org.jboss.deployers.client.spi.Deployment;
import org.jboss.deployers.client.spi.main.MainDeployer;
import org.jboss.deployers.spi.DeploymentException;
import org.jboss.deployers.spi.DeploymentState;
import org.jboss.deployers.spi.deployer.Deployers;
import org.jboss.deployers.spi.deployer.DeploymentStage;
import org.jboss.deployers.spi.deployer.DeploymentStages;
import org.jboss.deployers.spi.deployer.managed.ManagedDeploymentCreator;
import org.jboss.deployers.structure.spi.DeploymentContext;
import org.jboss.deployers.structure.spi.DeploymentUnit;
import org.jboss.deployers.structure.spi.StructuralDeployers;
import org.jboss.deployers.structure.spi.helpers.RevertedDeploymentContextComparator;
import org.jboss.deployers.structure.spi.main.MainDeployerStructure;
import org.jboss.logging.Logger;
import org.jboss.managed.api.ManagedDeployment;
import org.jboss.managed.api.ManagedObject;
import org.jboss.util.graph.Graph;
import org.jboss.util.graph.Vertex;
/**
* MainDeployerImpl.
*
* @author <a href="adrian@jboss.com">Adrian Brock</a>
* @author <a href="scott.stark@jboss.org">Scott Stark</a>
* @author <a href="ales.justin@jboss.com">Ales Justin</a>
* @version $Revision: 87597 $
*/
public class MainDeployerImpl implements MainDeployer, MainDeployerStructure
{
/** The log */
private static final Logger log = Logger.getLogger(MainDeployerImpl.class);
/** Whether we are shutdown */
private AtomicBoolean shutdown = new AtomicBoolean(false);
/** The deployers */
private Deployers deployers;
/** The structural deployers */
private StructuralDeployers structuralDeployers;
/** The ManagedDeploymentCreator plugin */
private ManagedDeploymentCreator mgtDeploymentCreator;
/** The deployments by name */
private Map<String, DeploymentContext> topLevelDeployments = new ConcurrentHashMap<String, DeploymentContext>();
/** All deployments by name */
private Map<String, DeploymentContext> allDeployments = new ConcurrentHashMap<String, DeploymentContext>();
/** Deployments in error by name */
private Map<String, DeploymentContext> errorDeployments = new ConcurrentHashMap<String, DeploymentContext>();
/** Deployments missing deployers */
private Map<String, Deployment> missingDeployers = new ConcurrentHashMap<String, Deployment>();
/** The undeploy work */
private List<DeploymentContext> undeploy = new CopyOnWriteArrayList<DeploymentContext>();
/** The deploy work */
private List<DeploymentContext> deploy = new CopyOnWriteArrayList<DeploymentContext>();
/** The process lock */
private ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
/** The top deployment context comparator */
private Comparator<DeploymentContext> comparator;
private Comparator<DeploymentContext> reverted;
/** The re-deployments */
private final Map<String, Deployment> toRedeploy = Collections.synchronizedMap(new LinkedHashMap<String, Deployment>());
/**
* Set the top deployment context comparator.
*
* @param comparator the deployment context comparator
*/
public void setComparator(Comparator<DeploymentContext> comparator)
{
if (comparator == null)
throw new IllegalArgumentException("Null comparator");
this.comparator = comparator;
this.reverted = new RevertedDeploymentContextComparator(comparator);
}
/**
* Get the deployers
*
* @return the deployers
*/
public synchronized Deployers getDeployers()
{
return deployers;
}
/**
* Set the deployers
*
* @param deployers the deployers
* @throws IllegalArgumentException for null deployers
*/
public synchronized void setDeployers(Deployers deployers)
{
if (deployers == null)
throw new IllegalArgumentException("Null deployers");
this.deployers = deployers;
}
/**
* Get the structural deployers
*
* @return the structural deployers
*/
public synchronized StructuralDeployers getStructuralDeployers()
{
return structuralDeployers;
}
/**
* Set the structural deployers
*
* @param deployers the deployers
* @throws IllegalArgumentException for null deployers
*/
public synchronized void setStructuralDeployers(StructuralDeployers deployers)
{
if (deployers == null)
throw new IllegalArgumentException("Null deployers");
structuralDeployers = deployers;
}
/**
* Get managed deployment creator.
*
* @return the managed deployment creator
*/
public ManagedDeploymentCreator getMgtDeploymentCreator()
{
return mgtDeploymentCreator;
}
/**
* Set managed deployment creator.
*
* @param mgtDeploymentCreator the managed deployment creator
*/
public void setMgtDeploymentCreator(ManagedDeploymentCreator mgtDeploymentCreator)
{
this.mgtDeploymentCreator = mgtDeploymentCreator;
}
public Deployment getDeployment(String name)
{
DeploymentContext context = getTopLevelDeploymentContext(name);
if (context != null)
return context.getDeployment();
else
return toRedeploy.get(name);
}
@Deprecated
public DeploymentContext getDeploymentContext(String name)
{
if (name == null)
throw new IllegalArgumentException("Null name");
return allDeployments.get(name);
}
@Deprecated
public DeploymentContext getDeploymentContext(String name, boolean errorNotFound) throws DeploymentException
{
DeploymentContext context = getDeploymentContext(name);
if (errorNotFound && context == null)
throw new DeploymentException("Context " + name + " not found");
return context;
}
public DeploymentUnit getDeploymentUnit(String name)
{
DeploymentContext context = getDeploymentContext(name);
if (context == null)
return null;
return context.getDeploymentUnit();
}
public DeploymentUnit getDeploymentUnit(String name, boolean errorNotFound) throws DeploymentException
{
DeploymentUnit unit = getDeploymentUnit(name);
if (errorNotFound && unit == null)
throw new DeploymentException("Unit " + name + " not found");
return unit;
}
/**
* Get a top level deployment context by name
*
* @param name the name
* @return the context
*/
public DeploymentContext getTopLevelDeploymentContext(String name)
{
if (name == null)
throw new IllegalArgumentException("Null name");
return topLevelDeployments.get(name);
}
// TODO - introduce some interface or push to MDStructure
/**
* Get all deployments.
*
* @return all deployments
*/
public Collection<DeploymentContext> getAll()
{
return Collections.unmodifiableCollection(allDeployments.values());
}
/**
* Get errors.
*
* @return the errors
*/
public Collection<DeploymentContext> getErrors()
{
return Collections.unmodifiableCollection(errorDeployments.values());
}
/**
* Get missing deployers deployments.
*
* @return the missing deployer deployments
*/
public Collection<Deployment> getMissingDeployer()
{
return Collections.unmodifiableCollection(missingDeployers.values());
}
public Collection<Deployment> getTopLevel()
{
List<Deployment> result = new ArrayList<Deployment>();
for (DeploymentContext context : topLevelDeployments.values())
{
Deployment deployment = context.getDeployment();
if (deployment != null)
result.add(deployment);
else
throw new IllegalStateException("Context has no deployment? " + context.getName());
}
return result;
}
public void addDeployment(Deployment deployment) throws DeploymentException
{
addDeployment(deployment, true);
}
/**
* Remove added re-deployments.
* This method should take read lock.
*
* @param names the deployment names to remove
* @throws DeploymentException for any error
*/
protected void processToUndeploy(Set<String> names) throws DeploymentException
{
DeploymentException initialCause = null;
for(String name : names)
{
try
{
removeDeployment(name, true);
}
catch (DeploymentException e)
{
if (initialCause == null)
initialCause = e;
else
log.warn("More exceptions for deployment: " + name, e);
}
}
if (initialCause != null)
throw initialCause;
}
/**
* Process added re-deployments.
* This method should take read lock.
*
* @param deployments the deployments to process
* @throws DeploymentException for any error
*/
protected void processToDeploy(Collection<Deployment> deployments) throws DeploymentException
{
List<String> added = new ArrayList<String>();
try
{
for (Deployment deployment : deployments)
{
determineDeploymentContext(deployment, true);
added.add(deployment.getName());
}
}
catch (DeploymentException e)
{
ListIterator<String> iter = added.listIterator(added.size());
while (iter.hasPrevious())
{
try
{
removeDeployment(iter.previous(), true);
}
catch (Throwable ignored)
{
}
}
throw e;
}
}
/**
* Add a deployment
*
* @param deployment the deployment
* @param addToDeploy should we add this deployment to deploy collection
* @throws DeploymentException for any error
*/
protected void addDeployment(Deployment deployment, boolean addToDeploy) throws DeploymentException
{
if (deployment == null)
throw new DeploymentException("Null context");
lockRead();
try
{
if (shutdown.get())
throw new DeploymentException("The main deployer is shutdown");
String name = deployment.getName();
log.debug("Add deployment: " + name);
// only try to recognize non re-deployments
if (checkExistingTopLevelDeployment(deployment, addToDeploy) == false)
{
determineDeploymentContext(deployment, addToDeploy);
}
}
finally
{
unlockRead();
}
}
/**
* Check for existing deployment context - redeploy.
* Method should take read lock.
*
* @param deployment the deployment
* @param addToDeploy should we add this deployment to deploy collection
* @return true if deployment is a redeployment, false otherwise
*/
protected boolean checkExistingTopLevelDeployment(Deployment deployment, boolean addToDeploy)
{
String name = deployment.getName();
DeploymentContext previous = topLevelDeployments.get(name);
if (previous != null)
{
log.debug("Removing previous deployment: " + previous.getName());
toRedeploy.put(name, deployment);
return true;
}
else
{
previous = allDeployments.get(name);
if (previous != null)
throw new IllegalStateException("Deployment already exists as a subdeployment: " + name);
}
return false;
}
/**
* Determine deployment context.
* Method should take read lock.
*
* @param deployment the deployment
* @param addToDeploy should we add this deployment to deploy collection
* @throws DeploymentException for any error
*/
protected void determineDeploymentContext(Deployment deployment, boolean addToDeploy) throws DeploymentException
{
String name = deployment.getName();
DeploymentContext context = null;
try
{
context = determineStructure(deployment);
if (DeploymentState.ERROR.equals(context.getState()))
{
errorDeployments.put(name, context);
}
context.getTransientAttachments().addAttachment(MainDeployer.class, this);
topLevelDeployments.put(name, context);
addContext(context, addToDeploy);
}
catch (DeploymentException e)
{
missingDeployers.put(name, deployment);
throw e;
}
catch (Throwable t)
{
// was structure determined?
if (context == null)
missingDeployers.put(name, deployment);
throw DeploymentException.rethrowAsDeploymentException("Error determining deployment structure for " + name, t);
}
}
public boolean removeDeployment(Deployment deployment) throws DeploymentException
{
return removeDeployment(deployment, true);
}
/**
* Remove a deployment by name
*
* @param deployment thedeployment
* @param addToUndeploy should we add to undeploy collection
* @return false when the context was previously unknown
* @throws DeploymentException for any error
*/
protected boolean removeDeployment(Deployment deployment, boolean addToUndeploy) throws DeploymentException
{
if (deployment == null)
throw new DeploymentException("Null deployment");
return removeDeployment(deployment.getName(), addToUndeploy);
}
public boolean removeDeployment(String name) throws DeploymentException
{
return removeDeployment(name, true);
}
/**
* Remove a deployment by name
*
* @param name the name of the deployment
* @param addToUndeploy should we add to undeploy collection
* @return false when the context was previously unknown
* @throws DeploymentException for any error
*/
protected boolean removeDeployment(String name, boolean addToUndeploy) throws DeploymentException
{
if (name == null)
throw new DeploymentException("Null name");
lockRead();
try
{
if (shutdown.get())
throw new IllegalStateException("The main deployer is shutdown");
log.debug("Remove deployment context: " + name);
DeploymentContext context = topLevelDeployments.remove(name);
if (context == null)
return false;
context.getTransientAttachments().removeAttachment(MainDeployer.class);
removeContext(context, addToUndeploy);
return true;
}
finally
{
unlockRead();
}
}
public void deploy(Deployment... deployments) throws DeploymentException
{
if (deployments == null)
throw new IllegalArgumentException("Null deployments.");
if (deployers == null)
throw new IllegalStateException("No deployers");
lockRead();
try
{
if (shutdown.get())
throw new IllegalStateException("The main deployer is shutdown");
DeploymentContext[] contexts = new DeploymentContext[deployments.length];
for(int i = 0; i < deployments.length; i++)
{
try
{
Deployment deployment = deployments[i];
addDeployment(deployment, false);
DeploymentContext context = getTopLevelDeploymentContext(deployment.getName());
if (contexts == null)
throw new DeploymentException("Deployment context not found: " + deployment.getName());
deployers.process(Collections.singletonList(context), null);
contexts[i] = context;
}
catch(Throwable t)
{
DeploymentContext[] deployedContexts = new DeploymentContext[i];
System.arraycopy(contexts, 0, deployedContexts, 0, i);
deployers.process(null, Arrays.asList(deployedContexts));
throw DeploymentException.rethrowAsDeploymentException("Unable to deploy deployments, cause: " + deployments[i], t);
}
}
try
{
deployers.checkComplete(contexts);
}
catch (DeploymentException e)
{
deployers.process(null, Arrays.asList(contexts));
throw e;
}
}
finally
{
unlockRead();
}
}
public void undeploy(Deployment... deployments) throws DeploymentException
{
if (deployments == null)
throw new IllegalArgumentException("Null deployments.");
if (deployers == null)
throw new IllegalStateException("No deployers");
lockRead();
try
{
if (shutdown.get())
throw new IllegalStateException("The main deployer is shutdown");
for(Deployment deployment : deployments)
{
DeploymentContext context = getTopLevelDeploymentContext(deployment.getName());
if (context != null)
{
try
{
removeDeployment(deployment, false);
deployers.process(null, Collections.singletonList(context));
}
catch (DeploymentException e)
{
if (log.isTraceEnabled())
log.trace("Ignored exception while undeploying deployment " + deployment.getName() + ":" + e);
}
}
else if (log.isTraceEnabled())
{
log.trace("No such deployment present: " + deployment.getName());
}
}
}
finally
{
unlockRead();
}
}
public void undeploy(String... names) throws DeploymentException
{
if (names == null)
throw new IllegalArgumentException("Null names.");
List<Deployment> deployments = new ArrayList<Deployment>();
for(String name : names)
{
DeploymentContext context = getTopLevelDeploymentContext(name);
if (context != null)
deployments.add(context.getDeployment());
else if (log.isTraceEnabled())
log.trace("No such deployment present: " + name);
}
if (deployments.isEmpty() == false)
undeploy(deployments.toArray(new Deployment[deployments.size()]));
}
public void process()
{
if (deployers == null)
throw new IllegalStateException("No deployers");
lockRead();
try
{
if (shutdown.get())
throw new IllegalStateException("The main deployer is shutdown");
Map<String, Deployment> copy = new LinkedHashMap<String, Deployment>();
synchronized (toRedeploy)
{
copy.putAll(toRedeploy);
toRedeploy.clear();
}
try
{
processToUndeploy(copy.keySet());
}
catch (DeploymentException e)
{
throw new RuntimeException("Error while removing re-deployments", e);
}
List<DeploymentContext> undeployContexts = null;
if (undeploy.isEmpty() == false)
{
// Undeploy in reverse order (subdeployments first)
undeployContexts = new ArrayList<DeploymentContext>(undeploy);
undeploy.clear();
Collections.reverse(undeployContexts);
if (reverted != null)
Collections.sort(undeployContexts, reverted);
}
if (undeployContexts != null)
{
deployers.process(null, undeployContexts);
}
try
{
processToDeploy(copy.values());
}
catch (DeploymentException e)
{
throw new RuntimeException("Error while adding re-deployments", e);
}
List<DeploymentContext> deployContexts = null;
if (deploy.isEmpty() == false)
{
deployContexts = new ArrayList<DeploymentContext>(deploy);
deploy.clear();
if (comparator != null)
Collections.sort(deployContexts, comparator);
}
if (deployContexts != null)
{
deployers.process(deployContexts, null);
}
}
finally
{
unlockRead();
}
}
public DeploymentStage getDeploymentStage(String deploymentName) throws DeploymentException
{
if (deployers == null)
throw new IllegalStateException("No deployers");
lockRead();
try
{
DeploymentContext context = getTopLevelDeploymentContext(deploymentName);
if (context == null)
return DeploymentStages.NOT_INSTALLED;
DeploymentStage result = deployers.getDeploymentStage(context);
if (result != null)
return result;
else
return DeploymentStages.NOT_INSTALLED;
}
catch (Error e)
{
throw e;
}
catch (Throwable t)
{
throw DeploymentException.rethrowAsDeploymentException("Error getting stage for " + deploymentName, t);
}
finally
{
unlockRead();
}
}
public void change(String deploymentName, DeploymentStage stage) throws DeploymentException
{
if (deployers == null)
throw new IllegalStateException("No deployers");
lockRead();
try
{
DeploymentContext context = getTopLevelDeploymentContext(deploymentName);
if (context == null)
throw new DeploymentException("Top level deployment " + deploymentName + " not found");
try
{
deployers.change(context, stage);
}
catch (Error e)
{
throw e;
}
catch (Throwable t)
{
throw DeploymentException.rethrowAsDeploymentException("Error changing context " + deploymentName + " to stage " + stage, t);
}
}
finally
{
unlockRead();
}
}
public void prepareShutdown()
{
if (deployers != null)
deployers.shutdown();
}
public void shutdown()
{
prepareShutdown();
lockWrite();
try
{
while (topLevelDeployments.isEmpty() == false)
{
// Remove all the contexts
for (DeploymentContext context : topLevelDeployments.values())
{
topLevelDeployments.remove(context.getName());
removeContext(context, true);
}
// Do it
process();
}
shutdown.set(true);
}
finally
{
unlockWrite();
}
}
public void checkComplete() throws DeploymentException
{
if (deployers == null)
throw new IllegalStateException("Null deployers");
deployers.checkComplete(errorDeployments.values(), missingDeployers.values());
}
/**
* Get the names from deployments.
*
* @param deployments the deployments
* @return depolyment names
*/
protected static String[] getDeploymentNames(Deployment... deployments)
{
if (deployments == null)
throw new IllegalArgumentException("Null deployments");
String[] names = new String[deployments.length];
for(int i = 0; i < deployments.length; i++)
{
if (deployments[i] == null)
throw new IllegalArgumentException("Null deployment: " + i);
names[i] = deployments[i].getName();
}
return names;
}
/**
* Get the deployment contexts.
*
* @param names the deployment names
* @return depolyment contexts
* @throws DeploymentException if context is not found
*/
protected DeploymentContext[] getDeploymentContexts(String... names) throws DeploymentException
{
if (names == null)
throw new IllegalArgumentException("Null names");
DeploymentContext[] contexts = new DeploymentContext[names.length];
for(int i = 0; i < names.length; i++)
{
contexts[i] = getTopLevelDeploymentContext(names[i]);
if (contexts[i] == null)
throw new DeploymentException("Deployment context not found: " + names[i]);
}
return contexts;
}
public void checkComplete(Deployment... deployments) throws DeploymentException
{
if (deployments == null)
throw new IllegalArgumentException("Null deployments");
checkComplete(getDeploymentNames(deployments));
}
public void checkComplete(String... names) throws DeploymentException
{
if (names == null)
throw new IllegalArgumentException("Null names");
if (deployers == null)
throw new IllegalStateException("Null deployers");
deployers.checkComplete(getDeploymentContexts(names));
}
public void checkStructureComplete(Deployment... deployments) throws DeploymentException
{
if (deployments == null)
throw new IllegalArgumentException("Null deployments");
checkStructureComplete(getDeploymentNames(deployments));
}
public void checkStructureComplete(String... names) throws DeploymentException
{
if (names == null)
throw new IllegalArgumentException("Null names");
if (deployers == null)
throw new IllegalStateException("Null deployers");
deployers.checkStructureComplete(getDeploymentContexts(names));
}
public DeploymentState getDeploymentState(String name)
{
DeploymentContext context = getDeploymentContext(name);
if (context == null)
return DeploymentState.UNDEPLOYED;
return context.getState();
}
public ManagedDeployment getManagedDeployment(String name) throws DeploymentException
{
if (mgtDeploymentCreator == null)
throw new IllegalArgumentException("Null managed deployment creator.");
DeploymentContext context = getDeploymentContext(name, true);
Map<String, ManagedObject> rootMOs = getManagedObjects(context);
ManagedDeployment root = mgtDeploymentCreator.build(context.getDeploymentUnit(), rootMOs, null);
for (DeploymentContext childContext : context.getChildren())
{
processManagedDeployment(childContext, root);
}
return root;
}
public Map<String, ManagedObject> getManagedObjects(String name) throws DeploymentException
{
DeploymentContext context = getDeploymentContext(name, true);
return getManagedObjects(context);
}
public Map<String, ManagedObject> getManagedObjects(DeploymentContext context) throws DeploymentException
{
if (context == null)
throw new IllegalArgumentException("Null context");
if (deployers == null)
throw new IllegalStateException("No deployers");
return deployers.getManagedObjects(context);
}
public Graph<Map<String, ManagedObject>> getDeepManagedObjects(String name) throws DeploymentException
{
DeploymentContext context = getDeploymentContext(name);
Graph<Map<String, ManagedObject>> managedObjectsGraph = new Graph<Map<String, ManagedObject>>();
Vertex<Map<String, ManagedObject>> parent = new Vertex<Map<String, ManagedObject>>(context.getName());
managedObjectsGraph.setRootVertex(parent);
Map<String, ManagedObject> managedObjects = getManagedObjects(context);
parent.setData(managedObjects);
processManagedObjects(context, managedObjectsGraph, parent);
return managedObjectsGraph;
}
/**
* Get the managed objects for a context
*
* @param context the context
* @param graph the graph
* @param parent the parent node
* @throws DeploymentException for any problem
*/
protected void processManagedObjects(DeploymentContext context, Graph<Map<String, ManagedObject>> graph, Vertex<Map<String, ManagedObject>> parent)
throws DeploymentException
{
List<DeploymentContext> children = context.getChildren();
for(DeploymentContext child : children)
{
Vertex<Map<String, ManagedObject>> vertex = new Vertex<Map<String, ManagedObject>>(child.getName());
Map<String, ManagedObject> managedObjects = getManagedObjects(context);
vertex.setData(managedObjects);
graph.addEdge(parent, vertex, 0);
processManagedObjects(child, graph, vertex);
}
}
/**
* Recursively process the DeploymentContext into ManagedDeployments.
*
* @param context the context
* @param parent the parent
* @throws DeploymentException for any error
*/
protected void processManagedDeployment(DeploymentContext context, ManagedDeployment parent)
throws DeploymentException
{
if (mgtDeploymentCreator == null)
throw new IllegalArgumentException("Null managed deployment creator.");
DeploymentUnit unit = context.getDeploymentUnit();
Map<String, ManagedObject> MOs = getManagedObjects(context);
ManagedDeployment md = mgtDeploymentCreator.build(unit, MOs, parent);
for (DeploymentContext childContext : context.getChildren())
{
processManagedDeployment(childContext, md);
}
}
/**
* Determine the structure of a deployment
*
* @param deployment the deployment
* @return the deployment context
* @throws DeploymentException for an error determining the deployment structure
*/
private DeploymentContext determineStructure(Deployment deployment) throws DeploymentException
{
StructuralDeployers structuralDeployers = getStructuralDeployers();
if (structuralDeployers != null)
{
DeploymentContext result = structuralDeployers.determineStructure(deployment);
if (result != null)
return result;
}
throw new DeploymentException("No structural deployers.");
}
/**
* Add a context.
*
* @param context the context
* @param addToDeploy should we add to deploy collection
*/
private void addContext(DeploymentContext context, boolean addToDeploy)
{
allDeployments.put(context.getName(), context);
if (context.getState() == DeploymentState.ERROR)
{
log.debug("Not scheduling addition of context already in error: " + context.getName() + " reason=" + context.getProblem());
return;
}
context.setState(DeploymentState.DEPLOYING);
DeploymentContext parent = context.getParent();
log.debug("Scheduling deployment: " + context.getName() + " parent=" + parent);
// Process the top level only
if (context.isTopLevel() && addToDeploy)
deploy.add(context);
// Add all the children
List<DeploymentContext> children = context.getChildren();
if (children != null)
{
for (DeploymentContext child : children)
addContext(child, addToDeploy);
}
}
/**
* Remove a context
*
* @param context the context
* @param addToUndeploy add to undeploy collection
*/
private void removeContext(DeploymentContext context, boolean addToUndeploy)
{
String name = context.getName();
allDeployments.remove(name);
errorDeployments.remove(name);
missingDeployers.remove(name);
if (DeploymentState.ERROR.equals(context.getState()) == false)
context.setState(DeploymentState.UNDEPLOYING);
DeploymentContext parent = context.getParent();
log.debug("Scheduling undeployment: " + name + " parent=" + parent);
// Process the top level only
if (context.isTopLevel() && addToUndeploy)
undeploy.add(context);
// Remove all the children
List<DeploymentContext> children = context.getChildren();
if (children != null)
{
for (DeploymentContext child : children)
removeContext(child, addToUndeploy);
}
}
/**
* Lock for read
*/
protected void lockRead()
{
lock.readLock().lock();
}
/**
* Unlock for read
*/
protected void unlockRead()
{
lock.readLock().unlock();
}
/**
* Lock for write
*/
protected void lockWrite()
{
lock.writeLock().lock();
}
/**
* Unlock for write
*/
protected void unlockWrite()
{
lock.writeLock().unlock();
}
}