/**
* Copyright (C) 2009 eXo Platform SAS.
*
* 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.gatein.mop.core.api.workspace.content;
import org.chromattic.api.annotations.FormattedBy;
import org.chromattic.api.annotations.NamingPrefix;
import org.chromattic.api.annotations.Owner;
import org.chromattic.api.annotations.PrimaryType;
import org.chromattic.ext.format.BaseEncodingObjectFormatter;
import org.gatein.mop.api.content.Customization;
import org.gatein.mop.api.content.CustomizationContext;
import org.gatein.mop.api.content.ContentType;
import org.gatein.mop.api.workspace.WorkspaceCustomizationContext;
import org.gatein.mop.core.api.content.CustomizationContextComparator;
import org.gatein.mop.core.api.content.ContentManagerRegistry;
import org.gatein.mop.spi.content.ContentProvider;
import org.chromattic.api.annotations.OneToOne;
import org.chromattic.api.annotations.MappedBy;
import org.chromattic.api.annotations.Create;
import org.chromattic.api.annotations.Id;
import org.chromattic.api.ChromatticSession;
import java.util.Set;
import java.util.Collection;
import java.util.Iterator;
import java.util.TreeSet;
import java.util.Map;
import java.util.LinkedHashSet;
import java.util.Arrays;
/**
* @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
* @version $Revision$
*/
@NamingPrefix("mop")
@FormattedBy(BaseEncodingObjectFormatter.class)
@PrimaryType(name = "mop:customization")
public abstract class AbstractCustomization implements Customization<Object>
{
/** . */
protected static final CustomizationContextComparator comparator;
static
{
CustomizationContextComparator _comparator = new CustomizationContextComparator(
WorkspaceCustomizationContext.TYPE
);
//
comparator = _comparator;
}
/** . */
public ContentManagerRegistry registry;
/** . */
public ChromatticSession session;
@Id
public abstract String getId();
@OneToOne
@MappedBy("mop:contexttypes")
@Owner
abstract ContextTypeContainer getContextTypes();
@Create
abstract ContextType create();
@Create
abstract ContextSpecialization createContextSpecialization();
@OneToOne
@MappedBy("mop:state")
@Owner
public abstract AbstractCustomizationState getCustomizationState();
public abstract void setCustomizationState(AbstractCustomizationState customizationState);
public abstract CustomizationContext getContext();
public abstract AbstractCustomization getParent();
private <E, I> E getVirtualState(ContentProvider<E, I> provider)
{
StateContainerImpl<E, I> container = new StateContainerImpl<E, I>(provider, this);
//
E childPayload = provider.getState(container);
//
E parentPayload = null;
AbstractCustomization parent = getParent();
if (parent != null)
{
parentPayload = parent.getVirtualState(provider);
}
//
if (parentPayload != null)
{
if (childPayload != null)
{
return provider.combine(Arrays.asList(parentPayload, childPayload));
}
else
{
return parentPayload;
}
}
else
{
return childPayload;
}
}
private <E, I> E getState(ContentProvider<E, I> provider)
{
StateContainerImpl<E, I> container = new StateContainerImpl<E, I>(provider, this);
return provider.getState(container);
}
private <E, I> void setState(ContentProvider<E, I> provider, E state)
{
StateContainerImpl<E, I> container = new StateContainerImpl<E, I>(provider, this);
provider.setState(container, state);
}
public Object getVirtualState()
{
ContentType contentType = getType();
String mimeType = contentType.getMimeType();
ContentProvider<?, ?> provider = registry.providers.get(mimeType).getProvider();
return getVirtualState(provider);
}
public Object getState()
{
ContentType contentType = getType();
String mimeType = contentType.getMimeType();
ContentProvider<?, ?> provider = registry.providers.get(mimeType).getProvider();
return getState(provider);
}
public void setState(Object state)
{
ContentType contentType = getType();
String mimeType = contentType.getMimeType();
ContentProvider contentProvider = registry.providers.get(mimeType).getProvider();
setState(contentProvider, state);
}
public Customization<Object> getCustomization(Set<CustomizationContext> contexts)
{
return get(contexts, false);
}
public Customization<Object> customize(Collection<CustomizationContext> contexts)
{
if (contexts == null)
{
throw new NullPointerException();
}
return get(contexts, true);
}
public Set<CustomizationContext> getContexts()
{
//
AbstractCustomization current = this;
LinkedHashSet<CustomizationContext> contexts = new LinkedHashSet<CustomizationContext>();
//
while (true)
{
CustomizationContext currentContext = current.getContext();
if (currentContext == null)
{
throw new IllegalStateException("Could not resolve customization context for customization " + this);
}
//
contexts.add(currentContext);
//
AbstractCustomization parent = current.getParent();
if (parent != null)
{
current = parent;
}
else
{
break;
}
}
//
return contexts;
}
//
protected final Customization<Object> get(Collection<CustomizationContext> contexts, boolean create)
{
// The sorted contexts
TreeSet<CustomizationContext> sortedContexts = new TreeSet<CustomizationContext>(comparator);
// Contexts up to this node
Set<CustomizationContext> existingContexts = getContexts();
// Add all existing contexts
sortedContexts.addAll(existingContexts);
// Sort everything and check consistency
sortedContexts.addAll(contexts);
// Remove existing contexts
sortedContexts.removeAll(existingContexts);
//
return get(sortedContexts.iterator(), create);
}
protected final Customization<Object> get(Iterator<CustomizationContext> contexts, boolean create)
{
if (contexts.hasNext())
{
CustomizationContext context = contexts.next();
String type = context.getContextType();
ContextTypeContainer typeContainer = getContextTypes();
Map<String, ContextType> contextTypes = typeContainer.getContextTypes();
ContextType tmp = contextTypes.get(type);
if (tmp == null)
{
if (create)
{
tmp = create();
contextTypes.put(type, tmp);
}
else
{
return null;
}
}
Map<String, ContextSpecialization> c = tmp.getSpecializations();
String id = context.getContextId();
ContextSpecialization blah = c.get(id);
//
if (blah != null || !create)
{
return blah;
}
//
blah = createContextSpecialization();
c.put(id, blah);
//
return blah.get(contexts, create);
}
else
{
return this;
}
}
}