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package org.mule.config.transformer; |
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import org.mule.api.MuleContext; |
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import org.mule.api.lifecycle.Disposable; |
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import org.mule.api.transformer.DataType; |
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import org.mule.transformer.types.CollectionDataType; |
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import org.mule.util.annotation.AnnotationUtils; |
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import java.io.IOException; |
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import java.util.Set; |
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import java.util.concurrent.CopyOnWriteArraySet; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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30 | 0 | public abstract class AbstractAnnotatedTransformerArgumentResolver implements TransformerArgumentResolver, Disposable |
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{ |
32 | 0 | public static final String[] ignoredPackages = {"java.", "javax.", "org.w3c.", "org.mule.transport.", "org.mule.module."}; |
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37 | 0 | protected transient final Log logger = LogFactory.getLog(getClass()); |
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40 | 0 | private Set<Class> matchingClasses = new CopyOnWriteArraySet<Class>(); |
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43 | 0 | private Set<Class> nonMatchingClasses = new CopyOnWriteArraySet<Class>(); |
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public <T> T resolve(Class<T> type, DataType source, DataType result, MuleContext context) throws Exception |
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{ |
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49 | 0 | if(!getArgumentClass().isAssignableFrom(type) || isNonMatching(source, result)) |
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{ |
51 | 0 | return null; |
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} |
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54 | 0 | Class annotatedType = (result instanceof CollectionDataType ? ((CollectionDataType)result).getItemType() : result.getType()); |
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57 | 0 | boolean isAnnotated = matchingClasses.contains(annotatedType); |
58 | 0 | if(!isAnnotated) |
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{ |
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61 | 0 | isAnnotated = findAnnotation(annotatedType); |
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} |
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64 | 0 | if (!isAnnotated) |
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{ |
66 | 0 | annotatedType = source.getType(); |
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68 | 0 | isAnnotated = matchingClasses.contains(annotatedType); |
69 | 0 | if(!isAnnotated) |
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{ |
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72 | 0 | isAnnotated = AnnotationUtils.hasAnnotationWithPackage(getAnnotationsPackageName(), annotatedType); |
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} |
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} |
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76 | 0 | Object argument = context.getRegistry().lookupObject(getArgumentClass()); |
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78 | 0 | if (!isAnnotated) |
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{ |
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81 | 0 | nonMatchingClasses.add(source.getType()); |
82 | 0 | nonMatchingClasses.add(result.getType()); |
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85 | 0 | return (T)argument; |
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} |
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else |
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{ |
89 | 0 | matchingClasses.add(annotatedType); |
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} |
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93 | 0 | if (argument == null) |
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{ |
95 | 0 | logger.info("No common Object of type '" + getArgumentClass() + "' configured, creating a local one for: " + source + ", " + result); |
96 | 0 | argument = createArgument(annotatedType, context); |
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} |
98 | 0 | return (T)argument; |
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} |
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protected boolean findAnnotation(Class annotatedType) throws IOException |
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{ |
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105 | 0 | if(annotatedType.getPackage()==null) |
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{ |
107 | 0 | return false; |
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} |
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110 | 0 | for (String ignoredPackage : ignoredPackages) |
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{ |
112 | 0 | if(annotatedType.getPackage().getName().startsWith(ignoredPackage)) |
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{ |
114 | 0 | return false; |
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} |
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} |
117 | 0 | return AnnotationUtils.hasAnnotationWithPackage(getAnnotationsPackageName(), annotatedType); |
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} |
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protected boolean isNonMatching(DataType source, DataType result) |
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{ |
122 | 0 | return nonMatchingClasses.contains(result.getType()) && nonMatchingClasses.contains(source.getType()); |
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} |
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public void dispose() |
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{ |
127 | 0 | nonMatchingClasses.clear(); |
128 | 0 | matchingClasses.clear(); |
129 | 0 | } |
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public Set<Class> getMatchingClasses() |
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{ |
133 | 0 | return matchingClasses; |
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} |
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public Set<Class> getNonMatchingClasses() |
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{ |
138 | 0 | return nonMatchingClasses; |
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} |
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protected abstract Class<?> getArgumentClass(); |
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protected abstract Object createArgument(Class<?> annotatedType, MuleContext muleContext) throws Exception; |
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protected abstract String getAnnotationsPackageName(); |
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} |