ResourceJavaMethodDispatcher.java

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package com.sun.jersey.server.impl.model.method.dispatch;

import com.sun.jersey.api.container.ContainerException;
import com.sun.jersey.api.container.MappableContainerException;
import com.sun.jersey.api.core.HttpContext;
import com.sun.jersey.api.model.AbstractResourceMethod;
import com.sun.jersey.spi.dispatch.RequestDispatcher;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
 *
 * @author Paul.Sandoz@Sun.Com
 */
public abstract class ResourceJavaMethodDispatcher implements RequestDispatcher {

    protected final Method method;
    
    private final Annotation[] annotations;
    
    public ResourceJavaMethodDispatcher(AbstractResourceMethod abstractResourceMethod) {
        this.method = abstractResourceMethod.getMethod();
        this.annotations = abstractResourceMethod.getAnnotations();        
    }    
    
    public final void dispatch(Object resource, HttpContext context) {
        // Invoke the method on the resource
        try {
            _dispatch(resource, context);
            // Set the annotations if no exception is thrown and
            // there exists an entity
            if (context.getResponse().getEntity() != null)
                context.getResponse().setAnnotations(annotations);
        } catch (InvocationTargetException e) {
            // Propagate the target exception so it may be mapped to a response
            throw new MappableContainerException(e.getTargetException());
        } catch (IllegalAccessException e) {
            throw new ContainerException(e);
        }
    }
    
    protected abstract void _dispatch(Object resource, HttpContext context)
            throws IllegalAccessException, InvocationTargetException;

    @Override
    public String toString() {
        return method.toString();
    }
}