/*
* Copyright (c) 1998-2011 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.bytecode;
/**
* Represents an introspected java class.
*/
abstract public class JClass extends JAnnotationObject implements JType {
public static final JClass VOID = new JClassWrapper(void.class);
public static final JClass BOOLEAN = new JClassWrapper(boolean.class);
public static final JClass BYTE = new JClassWrapper(byte.class);
public static final JClass SHORT = new JClassWrapper(short.class);
public static final JClass INT = new JClassWrapper(int.class);
public static final JClass LONG = new JClassWrapper(long.class);
public static final JClass FLOAT = new JClassWrapper(float.class);
public static final JClass DOUBLE = new JClassWrapper(double.class);
public static final JClass CHAR = new JClassWrapper(char.class);
public static final JClass STRING = new JClassWrapper(String.class);
public static final JClass OBJECT = new JClassWrapper(Object.class);
/**
* Returns the class name.
*/
abstract public String getName();
/**
* Returns the class name.
*/
public String getSimpleName()
{
String name = getName();
int p = name.lastIndexOf('.');
return name.substring(p + 1);
}
/**
* Returns the Java class.
*/
public Class getJavaClass()
{
try {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
return Class.forName(getName(), false, loader);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Returns the parameter types.
*/
public JType []getActualTypeArguments()
{
return new JType[0];
}
/**
* Returns the raw type.
*/
public JClass getRawType()
{
return this;
}
/**
* Returns true for a primitive class.
*/
abstract public boolean isPrimitive();
/**
* Returns true for a public class.
*/
abstract public boolean isPublic();
/**
* Returns true for an abstract class
*/
abstract public boolean isAbstract();
/**
* Returns true for a final class
*/
abstract public boolean isFinal();
/**
* Returns true for an interface
*/
abstract public boolean isInterface();
/**
* Returns the superclass.
*/
abstract public JClass getSuperClass();
/**
* Returns the interfaces.
*/
abstract public JClass []getInterfaces();
/**
* Returns true for an array class.
*/
abstract public boolean isArray();
/**
* Returns the component for a class.
*/
public JClass getComponentType()
{
return null;
}
/**
* Returns true if the jClass is assignable to the class.
*/
abstract public boolean isAssignableTo(Class cl);
/**
* Returns true if the jClass is assignable to the class.
*/
abstract public boolean isAssignableFrom(Class cl);
/**
* Returns true if the jClass is assignable to the class.
*/
abstract public boolean isAssignableFrom(JClass cl);
/**
* Returns the declared methods
*/
abstract public JMethod []getDeclaredMethods();
/**
* Returns the public methods
*/
abstract public JMethod []getMethods();
/**
* Returns the constructors.
*/
abstract public JMethod []getConstructors();
/**
* Returns a matching constructor.
*/
public JMethod getConstructor(JClass []param)
{
JMethod []ctors = getConstructors();
loop:
for (int i = 0; i < ctors.length; i++) {
JClass []args = ctors[i].getParameterTypes();
if (args.length != param.length)
continue loop;
for (int j = 0; j < args.length; j++)
if (! args[i].equals(param[j]))
continue loop;
return ctors[i];
}
return null;
}
/**
* Returns the matching method.
*/
abstract public JMethod getMethod(String name, JClass []param);
/**
* Returns the declared fields
*/
abstract public JField []getDeclaredFields();
/**
* Returns the fields
*/
abstract public JField []getFields();
/**
* Returns the printable name.
*/
public String getPrintName()
{
if (isArray())
return getComponentType().getPrintName() + "[]";
else
return getName().replace('$', '.');
}
/**
* Returns a printable version of a class.
*/
public String getShortName()
{
if (isArray())
return getComponentType().getShortName() + "[]";
else {
String name = getName().replace('$', '.');
int p = name.lastIndexOf('.');
if (p >= 0)
return name.substring(p + 1);
else
return name;
}
}
/**
* Returns the hash code
*/
public int hashCode()
{
return getName().hashCode();
}
/**
* Returns true if equals.
*/
public boolean equals(Object o)
{
if (o == this)
return true;
else if (o == null || getClass() != o.getClass())
return false;
JClass jClass = (JClass) o;
// note that the equality test doesn't include the class loader
return getName().equals(jClass.getName());
}
public String toString()
{
return "JClass[" + getName() + "]";
}
}