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Central module for Tapestry, containing interfaces to the Java
Servlet API and all core services and components.
// Copyright 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.structure;
import java.util.Locale;
import java.util.Map;
import org.apache.tapestry5.internal.services.ComponentClassCache;
import org.apache.tapestry5.internal.services.LinkSource;
import org.apache.tapestry5.internal.services.RequestPageCache;
import org.apache.tapestry5.ioc.LoggerSource;
import org.apache.tapestry5.ioc.OperationTracker;
import org.apache.tapestry5.ioc.internal.util.CollectionFactory;
import org.apache.tapestry5.ioc.services.PerthreadManager;
import org.apache.tapestry5.ioc.services.TypeCoercer;
import org.apache.tapestry5.services.ComponentClassResolver;
import org.apache.tapestry5.services.ContextValueEncoder;
import org.apache.tapestry5.services.messages.ComponentMessagesSource;
public class ComponentPageElementResourcesSourceImpl implements ComponentPageElementResourcesSource
{
private final Map cache = CollectionFactory.newConcurrentMap();
private final ComponentMessagesSource componentMessagesSource;
private final TypeCoercer typeCoercer;
private final ComponentClassCache componentClassCache;
private final ContextValueEncoder contextValueEncoder;
private final LinkSource linkSource;
private final RequestPageCache requestPageCache;
private final ComponentClassResolver componentClassResolver;
private final LoggerSource loggerSource;
private final OperationTracker tracker;
private final PerthreadManager perThreadManager;
public ComponentPageElementResourcesSourceImpl(ComponentMessagesSource componentMessagesSource,
TypeCoercer typeCoercer, ComponentClassCache componentClassCache, ContextValueEncoder contextValueEncoder,
LinkSource linkSource, RequestPageCache requestPageCache, ComponentClassResolver componentClassResolver,
LoggerSource loggerSource, OperationTracker tracker, PerthreadManager perThreadManager)
{
this.componentMessagesSource = componentMessagesSource;
this.typeCoercer = typeCoercer;
this.componentClassCache = componentClassCache;
this.contextValueEncoder = contextValueEncoder;
this.linkSource = linkSource;
this.requestPageCache = requestPageCache;
this.componentClassResolver = componentClassResolver;
this.loggerSource = loggerSource;
this.tracker = tracker;
this.perThreadManager = perThreadManager;
}
public ComponentPageElementResources get(Locale locale)
{
assert locale != null;
ComponentPageElementResources result = cache.get(locale);
if (result == null)
{
result = new ComponentPageElementResourcesImpl(locale, componentMessagesSource, typeCoercer,
componentClassCache, contextValueEncoder, linkSource, requestPageCache, componentClassResolver,
loggerSource, tracker, perThreadManager);
// Small race condition here, where we may create two instances of the CPER for the same locale,
// but that's not worth worrying about.
cache.put(locale, result);
}
return result;
}
}