// Copyright 2006, 2007, 2008, 2009, 2010 The Apache Software Foundation
//
// 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.apache.tapestry5.internal.services;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import org.apache.tapestry5.SymbolConstants;
import org.apache.tapestry5.func.Worker;
import org.apache.tapestry5.ioc.Messages;
import org.apache.tapestry5.ioc.Resource;
import org.apache.tapestry5.ioc.annotations.Symbol;
import org.apache.tapestry5.ioc.internal.util.CollectionFactory;
import org.apache.tapestry5.ioc.internal.util.URLChangeTracker;
import org.apache.tapestry5.ioc.services.ClasspathURLConverter;
import org.apache.tapestry5.model.ComponentModel;
import org.apache.tapestry5.services.InvalidationEventHub;
import org.apache.tapestry5.services.UpdateListener;
import org.apache.tapestry5.services.messages.ComponentMessagesSource;
import org.apache.tapestry5.services.messages.PropertiesFileParser;
public class ComponentMessagesSourceImpl implements ComponentMessagesSource, UpdateListener
{
private final MessagesSource messagesSource;
private final MessagesBundle appCatalogBundle;
private class ComponentModelBundle implements MessagesBundle
{
private final ComponentModel model;
public ComponentModelBundle(ComponentModel model)
{
this.model = model;
}
public Resource getBaseResource()
{
return model.getBaseResource();
}
public Object getId()
{
return model.getComponentClassName();
}
public MessagesBundle getParent()
{
ComponentModel parentModel = model.getParentModel();
if (parentModel == null)
return appCatalogBundle;
return new ComponentModelBundle(parentModel);
}
}
public ComponentMessagesSourceImpl(List<Resource> appCatalogResources, PropertiesFileParser parser,
ClasspathURLConverter classpathURLConverter)
{
this(appCatalogResources, parser, new URLChangeTracker(classpathURLConverter));
}
ComponentMessagesSourceImpl(Resource appCatalogResource, PropertiesFileParser parser, URLChangeTracker tracker)
{
this(Arrays.asList(appCatalogResource), parser, tracker);
}
ComponentMessagesSourceImpl(List<Resource> appCatalogResources, PropertiesFileParser parser,
URLChangeTracker tracker)
{
messagesSource = new MessagesSourceImpl(tracker, parser);
appCatalogBundle = createAppCatalogBundle(appCatalogResources);
}
public void checkForUpdates()
{
messagesSource.checkForUpdates();
}
public Messages getMessages(ComponentModel componentModel, Locale locale)
{
MessagesBundle bundle = new ComponentModelBundle(componentModel);
return messagesSource.getMessages(bundle, locale);
}
public Messages getApplicationCatalog(Locale locale)
{
return messagesSource.getMessages(appCatalogBundle, locale);
}
private MessagesBundle createAppCatalogBundle(List<Resource> resources)
{
MessagesBundle current = null;
for (Resource r : resources)
{
current = createMessagesBundle(r, current);
}
return current;
}
private MessagesBundle createMessagesBundle(final Resource resource, final MessagesBundle parent)
{
return new MessagesBundle()
{
public Resource getBaseResource()
{
return resource;
}
public Object getId()
{
return resource.getPath();
}
public MessagesBundle getParent()
{
return parent;
}
};
}
public InvalidationEventHub getInvalidationEventHub()
{
return messagesSource;
}
}