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| package org.apache.tapestry.services.impl; |
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| |
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| import java.util.ArrayList; |
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| import java.util.HashMap; |
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| import java.util.List; |
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| import java.util.Locale; |
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| import java.util.Map; |
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| |
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| import org.apache.hivemind.Resource; |
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| import org.apache.hivemind.lib.chain.ChainBuilder; |
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| import org.apache.tapestry.IComponent; |
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| import org.apache.tapestry.INamespace; |
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| import org.apache.tapestry.engine.IPropertySource; |
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| import org.apache.tapestry.event.ResetEventListener; |
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| import org.apache.tapestry.services.ComponentPropertySource; |
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| import org.apache.tapestry.spec.IComponentSpecification; |
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| import org.apache.tapestry.util.PropertyHolderPropertySource; |
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| public class ComponentPropertySourceImpl implements ComponentPropertySource, ResetEventListener |
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| { |
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| private IPropertySource _globalProperties; |
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| |
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| private ChainBuilder _chainBuilder; |
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| |
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| private Map _componentSources = new HashMap(); |
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| |
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| private Map _localizedComponentSources = new HashMap(); |
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| private Map _namespaceSources = new HashMap(); |
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| |
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| private Map _localizedNamespaceSources = new HashMap(); |
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| |
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| public synchronized void resetEventDidOccur()
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| { |
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| _componentSources.clear();
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| _localizedComponentSources.clear();
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| _namespaceSources.clear();
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| _localizedNamespaceSources.clear();
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| } |
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| |
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| private synchronized IPropertySource getSourceForNamespace(INamespace namespace)
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| { |
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| Resource key = namespace.getSpecificationLocation();
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| IPropertySource result = (IPropertySource) _namespaceSources.get(key);
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| if (result == null)
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| { |
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| result = createSourceForNamespace(namespace);
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| _namespaceSources.put(key, result);
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| } |
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| return result;
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| } |
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| |
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| private synchronized IPropertySource getSourceForComponent(IComponent component)
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| { |
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| Resource key = component.getSpecification().getSpecificationLocation();
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| IPropertySource result = (IPropertySource) _componentSources.get(key);
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| if (result == null)
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| { |
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| result = createSourceForComponent(component);
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| _componentSources.put(key, result);
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| } |
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| return result;
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| } |
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| private synchronized LocalizedPropertySource getLocalizedSourceForComponent(IComponent component)
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| { |
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| Resource key = component.getSpecification().getSpecificationLocation();
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| LocalizedPropertySource result = (LocalizedPropertySource) _localizedComponentSources
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| .get(key); |
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| if (result == null)
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| { |
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| result = new LocalizedPropertySource(getSourceForComponent(component));
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| _localizedComponentSources.put(key, result);
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| } |
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| return result;
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| } |
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| private synchronized LocalizedPropertySource getLocalizedSourceForNamespace(INamespace namespace)
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| { |
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| Resource key = namespace.getSpecificationLocation();
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| LocalizedPropertySource result = (LocalizedPropertySource) _localizedNamespaceSources
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| .get(key); |
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| if (result == null)
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| { |
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| result = new LocalizedPropertySource(getSourceForNamespace(namespace));
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| _localizedNamespaceSources.put(key, result);
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| } |
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| return result;
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| } |
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| private IPropertySource createSourceForComponent(IComponent component)
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| { |
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| IComponentSpecification specification = component.getSpecification();
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| List sources = new ArrayList();
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| sources.add(new PropertyHolderPropertySource(specification));
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| sources.add(getSourceForNamespace(component.getNamespace()));
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| return (IPropertySource) _chainBuilder.buildImplementation(
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| IPropertySource.class, |
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| sources, |
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| ImplMessages.componentPropertySourceDescription(specification)); |
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| } |
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| private IPropertySource createSourceForNamespace(INamespace namespace)
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| { |
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| List sources = new ArrayList();
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| sources.add(new PropertyHolderPropertySource(namespace.getSpecification()));
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| sources.add(_globalProperties);
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| return (IPropertySource) _chainBuilder.buildImplementation(
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| IPropertySource.class, |
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| sources, |
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| ImplMessages.namespacePropertySourceDescription(namespace)); |
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| } |
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| public String getComponentProperty(IComponent component, String propertyName)
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| { |
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| return getSourceForComponent(component).getPropertyValue(propertyName);
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| } |
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| public String getLocalizedComponentProperty(IComponent component, Locale locale,
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| String propertyName) |
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| { |
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| return getLocalizedSourceForComponent(component).getPropertyValue(propertyName, locale);
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| } |
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| |
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| public String getNamespaceProperty(INamespace namespace, String propertyName)
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| { |
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| return getSourceForNamespace(namespace).getPropertyValue(propertyName);
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| } |
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| public String getLocalizedNamespaceProperty(INamespace namespace, Locale locale,
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| String propertyName) |
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| { |
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| return getLocalizedSourceForNamespace(namespace).getPropertyValue(propertyName, locale);
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| } |
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| public void setChainBuilder(ChainBuilder chainBuilder)
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| { |
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| _chainBuilder = chainBuilder;
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| } |
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| public void setGlobalProperties(IPropertySource globalProperties)
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| { |
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| _globalProperties = globalProperties;
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| } |
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| } |