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/*******************************************************************************
* Copyright (c) 2001, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jem.internal.proxy.remote;
/*
*/
import org.eclipse.jem.internal.proxy.core.*;
import org.eclipse.jem.internal.proxy.common.remote.Commands;
/**
* Remote Implementation of IBeanTypeProxy for Double.TYPE
* Creation date: (2/6/00 9:01:40 AM)
* @author: Joe Winchester
*/
final class REMDoubleTypeBeanTypeProxy extends REMPrimitiveBeanTypeProxy {
// Some values are cache'd for speed
private final INumberBeanProxy zeroProxy;
/**
* REMIntegerBeanTypeProxy constructor comment.
* @param aClass java.lang.Class
*/
REMDoubleTypeBeanTypeProxy(REMProxyFactoryRegistry aRegistry) {
super(aRegistry, new Integer(Commands.DOUBLE_TYPE), Double.TYPE.getName());
// Create the cached values
zeroProxy = new REMDoubleTypeBeanProxy(aRegistry, 0D);
}
/**
* Helper to create a bean proxy
* Package protected because everyone should go through the factory API
* that is defined as part of IBeanProxyFactory
*/
INumberBeanProxy createDoubleBeanProxy(double aDouble) {
return (aDouble != 0D) ?
new REMDoubleTypeBeanProxy(fRegistry, aDouble) : zeroProxy;
}
/**
* newInstance method. double is a primitive, so the standard way won't work.
* Return the zeroProxy for this case because that is the default value.
*/
public IBeanProxy newInstance() {
return zeroProxy;
}
/**
* Create a new bean proxy the ValueObject passed in.
* We will assume the object is correct type.
*/
public IBeanProxy newBeanProxy(Commands.ValueObject value) {
return createDoubleBeanProxy(value.aDouble);
}
/**
* Short cut for newInstance where the string follows the
* specific pattern we expect. That way it won't be necessary to ship over to the vm
* to process it.
*
* The pattern it can accept is:
* 1) (double) validNumber - number can be any number because (double) explicitly casts it down.
* 2) validNumber
* It will use the decode function of double to determine the valid number.
*/
public IBeanProxy newInstance(String initializationString) throws ThrowableProxy, ClassCastException, InstantiationException {
String trim = initializationString.trim();
if (trim.length() == 0)
return super.newInstance(initializationString);
double aDouble;
if (trim.startsWith("(double)")) { //$NON-NLS-1$
Number v = parseString(trim.substring("(double)".length()).trim()); //$NON-NLS-1$
if (v != null)
aDouble = v.doubleValue();
else
return super.newInstance(initializationString); // Can't decode it, let full parser handle it.
} else {
try {
aDouble = Double.valueOf(initializationString).doubleValue(); // See if valid double format.
} catch (NumberFormatException e) {
return super.newInstance(initializationString); // Can't decode it, let full parser handle it.
}
}
return getProxyFactoryRegistry().getBeanProxyFactory().createBeanProxyWith(aDouble);
}
}
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