/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.quercus.marshal;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.JavaValue;
import com.caucho.quercus.env.Value;
import com.caucho.quercus.expr.Expr;
import com.caucho.quercus.program.JavaClassDef;
import com.caucho.util.L10N;
/**
* Code for marshaling arguments.
*/
public class JavaMarshal extends Marshal {
private static final L10N L = new L10N(JavaMarshal.class);
protected final JavaClassDef _def;
protected final boolean _isNotNull;
protected final boolean _isUnmarshalNullAsFalse;
public JavaMarshal(JavaClassDef def,
boolean isNotNull)
{
this(def, isNotNull, false);
}
public JavaMarshal(JavaClassDef def,
boolean isNotNull,
boolean isUnmarshalNullAsFalse)
{
_def = def;
_isNotNull = isNotNull;
_isUnmarshalNullAsFalse = isUnmarshalNullAsFalse;
}
public Object marshal(Env env, Expr expr, Class argClass)
{
Value value = expr.eval(env);
return marshal(env, value, argClass);
}
public Object marshal(Env env, Value value, Class argClass)
{
if (! value.isset()) {
if (_isNotNull) {
env.warning(L.l("null is an unexpected argument, expected {0}",
shortName(argClass)));
}
return null;
}
Object obj = value.toJavaObject();
if (obj == null) {
if (_isNotNull) {
env.warning(L.l("null is an unexpected argument, expected {0}",
shortName(argClass)));
}
return null;
}
else if (! argClass.isAssignableFrom(obj.getClass())) {
//env.error(L.l("Can't assign {0} to {1}", obj, argClass));
env.warning(L.l("'{0}' of type '{1}' is an unexpected argument, expected {2}", value, shortName(obj.getClass()), shortName(argClass)));
return null;
}
return obj;
}
public Value unmarshal(Env env, Object value)
{
return env.wrapJava(value, _def, _isUnmarshalNullAsFalse);
}
protected final static String shortName(Class cl)
{
String name = cl.getName();
int p = name.lastIndexOf('.');
if (p > 0)
return name.substring(p + 1);
else
return name;
}
@Override
protected int getMarshalingCostImpl(Value argValue)
{
Class type = _def.getType();
if (argValue instanceof JavaValue &&
type.isAssignableFrom(argValue.toJavaObject().getClass()))
return Marshal.ZERO;
else
return Marshal.FOUR;
}
@Override
public final Class getExpectedClass()
{
return _def.getType();
}
}