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First shot at Invokable methods implementation in Weld
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impl/src/main/java/org/jboss/weld/invokable/InvokerBuilderImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| package org.jboss.weld.invokable; | ||
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| import jakarta.enterprise.inject.spi.AnnotatedMethod; | ||
| import jakarta.enterprise.invoke.Invoker; | ||
| import jakarta.enterprise.invoke.InvokerBuilder; | ||
| import org.jboss.weld.bean.ClassBean; | ||
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| // TODO add exception on repeated invocations of builder methods as per spec | ||
| public class InvokerBuilderImpl<T> implements InvokerBuilder<Invoker<T, ?>> { | ||
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| final ClassBean<T> classBean; | ||
| final AnnotatedMethod<? super T> method; | ||
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| boolean instanceLookup; | ||
| boolean[] argLookup; | ||
| TransformerMetadata instanceTransformer; | ||
| TransformerMetadata returnValueTransformer; | ||
| TransformerMetadata exceptionTransformer; | ||
| TransformerMetadata invocationWrapper; | ||
| final TransformerMetadata[] argTransformers; | ||
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| public InvokerBuilderImpl(ClassBean<T> classBean, AnnotatedMethod<? super T> method) { | ||
| this.classBean = classBean; | ||
| this.method = method; | ||
| this.argLookup = new boolean[method.getParameters().size()]; | ||
| this.argTransformers = new TransformerMetadata[method.getParameters().size()]; | ||
| } | ||
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| @Override | ||
| public InvokerBuilder<Invoker<T, ?>> setInstanceLookup() { | ||
| this.instanceLookup = true; | ||
| return this; | ||
| } | ||
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| @Override | ||
| public InvokerBuilder<Invoker<T, ?>> setArgumentLookup(int i) { | ||
| if (i >= argLookup.length) { | ||
| // TODO better exception | ||
| throw new IllegalArgumentException("Error attempting to set CDI argument lookup for arg number " + i + " while the number of method args is " + argLookup.length); | ||
| } | ||
| argLookup[i] = true; | ||
| return this; | ||
| } | ||
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| @Override | ||
| public InvokerBuilder<Invoker<T, ?>> setInstanceTransformer(Class<?> aClass, String s) { | ||
| this.instanceTransformer = new TransformerMetadata(aClass, s, TransformerType.INSTANCE); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public InvokerBuilder<Invoker<T, ?>> setArgumentTransformer(int i, Class<?> aClass, String s) { | ||
| if (i >= argLookup.length) { | ||
| // TODO better exception | ||
| throw new IllegalArgumentException("Error attempting to set an argument lookup. Number of method args: " + argLookup.length + " arg position: " + i); | ||
| } | ||
| this.argTransformers[i] = new TransformerMetadata(aClass, s, TransformerType.ARGUMENT); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public InvokerBuilder<Invoker<T, ?>> setReturnValueTransformer(Class<?> aClass, String s) { | ||
| this.returnValueTransformer = new TransformerMetadata(aClass, s, TransformerType.RETURN_VALUE); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public InvokerBuilder<Invoker<T, ?>> setExceptionTransformer(Class<?> aClass, String s) { | ||
| this.exceptionTransformer = new TransformerMetadata(aClass, s, TransformerType.EXCEPTION); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public InvokerBuilder<Invoker<T, ?>> setInvocationWrapper(Class<?> aClass, String s) { | ||
| this.invocationWrapper = new TransformerMetadata(aClass, s, TransformerType.WRAPPER); | ||
| return this; | ||
| } | ||
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| @Override | ||
| public Invoker<T, ?> build() { | ||
| return new InvokerImpl<>(this); | ||
| } | ||
| } |
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