/*
* Copyright (c) 1998-2008 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.module;
import com.caucho.quercus.QuercusExitException;
import com.caucho.quercus.QuercusModuleException;
import com.caucho.quercus.annotation.Name;
import com.caucho.quercus.env.JavaInvoker;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* Represents the introspected static function information.
*/
public class StaticFunction extends JavaInvoker {
protected final QuercusModule _quercusModule;
protected final Method _method;
private final int _argLength;
/**
* Creates the statically introspected function.
*
* @param method the introspected method.
*/
public StaticFunction(ModuleContext moduleContext,
QuercusModule quercusModule,
Method method)
{
super(moduleContext,
getName(method),
method.getParameterTypes(),
method.getParameterAnnotations(),
method.getAnnotations(),
method.getReturnType());
_method = method;
_argLength = method.getParameterTypes().length;
_quercusModule = quercusModule;
}
/*
* Returns true for a static function.
*/
public boolean isStatic()
{
return true;
}
private static String getName(Method method)
{
String name;
Name nameAnn = method.getAnnotation(Name.class);
if (nameAnn != null)
name = nameAnn.value();
else
name = method.getName();
return name;
}
@Override
public String getDeclaringClassName()
{
return _method.getDeclaringClass().getSimpleName();
}
/**
* Returns the owning module object.
*
* @return the module object
*/
public QuercusModule getModule()
{
return _quercusModule;
}
/**
* Returns the function's method.
*
* @return the reflection method.
*/
public Method getMethod()
{
return _method;
}
public int getArgumentLength()
{
return _argLength;
}
/**
* Evalutes the function.
*/
@Override
public Object invoke(Object obj, Object []javaArgs)
{
try {
return _method.invoke(_quercusModule, javaArgs);
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException(toString(_method, javaArgs), e);
} catch (RuntimeException e) {
throw e;
} catch (InvocationTargetException e) {
// php/03k5
// exceptions from invoked calls are wrapped inside
// InvocationTargetException
Throwable cause = e.getCause();
if (cause instanceof QuercusExitException)
throw ((QuercusExitException) cause);
else if (cause != null)
throw QuercusModuleException.create(cause);
else
throw QuercusModuleException.create(e);
} catch (Exception e) {
throw QuercusModuleException.create(e);
}
}
private String toString(Method method, Object []javaArgs)
{
StringBuilder sb = new StringBuilder();
sb.append(method.getDeclaringClass().getName());
sb.append(".");
sb.append(method.getName());
sb.append("(");
for (int i = 0; i < javaArgs.length; i++) {
if (i != 0)
sb.append(", ");
sb.append(javaArgs[i]);
}
sb.append(")");
return sb.toString();
}
public String toString()
{
return getClass().getSimpleName() + "[" + _method + "]";
}
}