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package org.apache.tapestry.services.impl; |
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import java.util.HashMap; |
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import java.util.Map; |
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import org.apache.hivemind.ApplicationRuntimeException; |
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import org.apache.hivemind.ClassResolver; |
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import org.apache.hivemind.Resource; |
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import org.apache.hivemind.util.ClasspathResource; |
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import org.apache.tapestry.INamespace; |
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import org.apache.tapestry.asset.AssetSource; |
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import org.apache.tapestry.engine.ISpecificationSource; |
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import org.apache.tapestry.engine.Namespace; |
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import org.apache.tapestry.event.ReportStatusEvent; |
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import org.apache.tapestry.event.ReportStatusListener; |
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import org.apache.tapestry.event.ResetEventListener; |
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import org.apache.tapestry.parse.ISpecificationParser; |
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import org.apache.tapestry.services.NamespaceResources; |
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import org.apache.tapestry.spec.IApplicationSpecification; |
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import org.apache.tapestry.spec.IComponentSpecification; |
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import org.apache.tapestry.spec.ILibrarySpecification; |
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import org.apache.tapestry.spec.LibrarySpecification; |
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import org.apache.tapestry.util.xml.DocumentParseException; |
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public class SpecificationSourceImpl implements ISpecificationSource, ResetEventListener, |
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ReportStatusListener |
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{ |
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private ClassResolver _classResolver; |
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private IApplicationSpecification _specification; |
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private ISpecificationParser _parser; |
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private NamespaceResources _namespaceResources; |
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private INamespace _applicationNamespace; |
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private INamespace _frameworkNamespace; |
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private AssetSource _assetSource; |
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private String _serviceId; |
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private Map _componentCache = new HashMap(); |
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private Map _pageCache = new HashMap(); |
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private Map _libraryCache = new HashMap(); |
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private Map _namespaceCache = new HashMap(); |
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public void reportStatus(ReportStatusEvent event) |
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{ |
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event.title(_serviceId); |
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event.property("page specification count", _pageCache.size()); |
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event.collection("page specifications", _pageCache.keySet()); |
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event.property("component specification count", _componentCache.size()); |
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event.collection("component specifications", _componentCache.keySet()); |
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} |
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public void initializeService() |
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{ |
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_namespaceResources = new NamespaceResourcesImpl(this, _assetSource); |
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} |
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public synchronized void resetEventDidOccur() |
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{ |
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_componentCache.clear(); |
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_pageCache.clear(); |
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_libraryCache.clear(); |
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_namespaceCache.clear(); |
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_applicationNamespace = null; |
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_frameworkNamespace = null; |
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} |
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protected IComponentSpecification parseSpecification(Resource resource, boolean asPage) |
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{ |
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IComponentSpecification result = null; |
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try |
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{ |
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if (asPage) |
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result = _parser.parsePageSpecification(resource); |
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else |
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result = _parser.parseComponentSpecification(resource); |
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} |
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catch (DocumentParseException ex) |
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{ |
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throw new ApplicationRuntimeException( |
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ImplMessages.unableToParseSpecification(resource), ex); |
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} |
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return result; |
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} |
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protected ILibrarySpecification parseLibrarySpecification(Resource resource) |
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{ |
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try |
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{ |
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return _parser.parseLibrarySpecification(resource); |
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} |
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catch (DocumentParseException ex) |
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{ |
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throw new ApplicationRuntimeException( |
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ImplMessages.unableToParseSpecification(resource), ex); |
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} |
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} |
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public synchronized IComponentSpecification getComponentSpecification(Resource resourceLocation) |
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{ |
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IComponentSpecification result = (IComponentSpecification) _componentCache |
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.get(resourceLocation); |
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if (result == null) |
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{ |
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result = parseSpecification(resourceLocation, false); |
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_componentCache.put(resourceLocation, result); |
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} |
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return result; |
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} |
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public synchronized IComponentSpecification getPageSpecification(Resource resourceLocation) |
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{ |
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IComponentSpecification result = (IComponentSpecification) _pageCache.get(resourceLocation); |
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if (result == null) |
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{ |
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result = parseSpecification(resourceLocation, true); |
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_pageCache.put(resourceLocation, result); |
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} |
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return result; |
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} |
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public synchronized ILibrarySpecification getLibrarySpecification(Resource resourceLocation) |
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{ |
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ILibrarySpecification result = (LibrarySpecification) _libraryCache.get(resourceLocation); |
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if (result == null) |
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{ |
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result = parseLibrarySpecification(resourceLocation); |
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_libraryCache.put(resourceLocation, result); |
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} |
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return result; |
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} |
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public synchronized INamespace getApplicationNamespace() |
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{ |
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if (_applicationNamespace == null) |
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_applicationNamespace = new Namespace(null, null, _specification, _namespaceResources); |
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return _applicationNamespace; |
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} |
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public synchronized INamespace getFrameworkNamespace() |
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{ |
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if (_frameworkNamespace == null) |
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{ |
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Resource resource = new ClasspathResource(_classResolver, |
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"/org/apache/tapestry/Framework.library"); |
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ILibrarySpecification ls = getLibrarySpecification(resource); |
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_frameworkNamespace = new Namespace(INamespace.FRAMEWORK_NAMESPACE, null, ls, |
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_namespaceResources); |
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} |
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return _frameworkNamespace; |
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} |
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public void setParser(ISpecificationParser parser) |
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{ |
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_parser = parser; |
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} |
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public void setClassResolver(ClassResolver resolver) |
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{ |
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_classResolver = resolver; |
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} |
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public void setSpecification(IApplicationSpecification specification) |
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{ |
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_specification = specification; |
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} |
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public void setAssetSource(AssetSource assetSource) |
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{ |
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_assetSource = assetSource; |
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} |
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public void setServiceId(String serviceId) |
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{ |
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_serviceId = serviceId; |
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} |
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} |