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* and Distribution License("CDDL") (collectively, the "License"). You
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*
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/*
*/
package com.sun.ejb.containers.interceptors;
import java.lang.reflect.Method;
import java.util.Set;
import java.util.Map;
import java.util.HashMap;
import java.util.HashSet;
/**
*/
public class InterceptorUtil {
private static Map> compatiblePrimitiveWrapper
= new HashMap>();
static {
Set smallerPrimitiveWrappers = null;
smallerPrimitiveWrappers = new HashSet();
smallerPrimitiveWrappers.add(Byte.class);
compatiblePrimitiveWrapper.put(byte.class, smallerPrimitiveWrappers);
smallerPrimitiveWrappers = new HashSet();
smallerPrimitiveWrappers.add(Boolean.class);
compatiblePrimitiveWrapper.put(boolean.class, smallerPrimitiveWrappers);
smallerPrimitiveWrappers = new HashSet();
smallerPrimitiveWrappers.add(Character.class);
compatiblePrimitiveWrapper.put(char.class, smallerPrimitiveWrappers);
smallerPrimitiveWrappers = new HashSet();
smallerPrimitiveWrappers.add(Byte.class);
smallerPrimitiveWrappers.add(Short.class);
smallerPrimitiveWrappers.add(Integer.class);
smallerPrimitiveWrappers.add(Float.class);
smallerPrimitiveWrappers.add(Double.class);
compatiblePrimitiveWrapper.put(double.class, smallerPrimitiveWrappers);
smallerPrimitiveWrappers = new HashSet();
smallerPrimitiveWrappers.add(Byte.class);
smallerPrimitiveWrappers.add(Short.class);
smallerPrimitiveWrappers.add(Integer.class);
smallerPrimitiveWrappers.add(Float.class);
compatiblePrimitiveWrapper.put(float.class, smallerPrimitiveWrappers);
smallerPrimitiveWrappers = new HashSet();
smallerPrimitiveWrappers.add(Byte.class);
smallerPrimitiveWrappers.add(Short.class);
smallerPrimitiveWrappers.add(Integer.class);
compatiblePrimitiveWrapper.put(int.class, smallerPrimitiveWrappers);
smallerPrimitiveWrappers = new HashSet();
smallerPrimitiveWrappers.add(Byte.class);
smallerPrimitiveWrappers.add(Short.class);
smallerPrimitiveWrappers.add(Integer.class);
smallerPrimitiveWrappers.add(Long.class);
compatiblePrimitiveWrapper.put(long.class, smallerPrimitiveWrappers);
smallerPrimitiveWrappers = new HashSet();
smallerPrimitiveWrappers.add(Byte.class);
smallerPrimitiveWrappers.add(Short.class);
compatiblePrimitiveWrapper.put(short.class, smallerPrimitiveWrappers);
}
public static boolean hasCompatiblePrimitiveWrapper(Class type, Class typeTo) {
Set compatibles = compatiblePrimitiveWrapper.get(type);
return compatibles.contains(typeTo);
}
public static void checkSetParameters(Object[] params, Method method) {
if( method != null) {
Class[] paramTypes = method.getParameterTypes();
if ((params == null) && (paramTypes.length != 0)) {
throw new IllegalArgumentException("Wrong number of parameters for "
+ " method: " + method);
}
if (paramTypes.length != params.length) {
throw new IllegalArgumentException("Wrong number of parameters for "
+ " method: " + method);
}
int index = 0 ;
for (Class type : paramTypes) {
if (params[index] == null) {
if (type.isPrimitive()) {
throw new IllegalArgumentException("Parameter type mismatch for method "
+ method.getName() + ". Attempt to set a null value for Arg["
+ index + "]. Expected a value of type: " + type.getName());
}
} else if (type.isPrimitive()) {
Set compatibles = compatiblePrimitiveWrapper.get(type);
if (! compatibles.contains(params[index].getClass())) {
throw new IllegalArgumentException("Parameter type mismatch for method "
+ method.getName() + ". Arg["
+ index + "] type: " + params[index].getClass().getName()
+ " is not compatible with the expected type: " + type.getName());
}
} else if (! type.isAssignableFrom(params[index].getClass())) {
throw new IllegalArgumentException("Parameter type mismatch for method "
+ method.getName() + ". Arg["
+ index + "] type: " + params[index].getClass().getName()
+ " does not match the expected type: " + type.getName());
}
index++;
}
} else {
throw new IllegalStateException("Internal Error: Got null method");
}
}
}
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