/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
* Copyright (C) 2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
* Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
* Copyright (C) 2004 Charles O Nutter <headius@headius.com>
* Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the CPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the CPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.runtime;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.runtime.callback.Callback;
import org.jruby.runtime.callback.ReflectionCallbackFactory;
import org.jruby.runtime.callback.InvocationCallbackFactory;
import org.jruby.runtime.callback.DumpingInvocationCallbackFactory;
import org.jruby.util.SafePropertyAccessor;
/**
* Helper class to build Callback method.
* This impements method corresponding to the signature of method most often found in
* the Ruby library, for methods with other signature the appropriate Callback object
* will need to be explicitly created.
**/
public abstract class CallbackFactory {
public static final Class[] NULL_CLASS_ARRAY = new Class[0];
/**
* gets an instance method with no arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getMethod(String method);
/**
* gets a fast instance method with no arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastMethod(String method);
/**
* gets an instance method with 1 argument.
* @param method name of the method
* @param arg1 the class of the only argument for this method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getMethod(String method, Class arg1);
/**
* gets a fast instance method with 1 argument.
* @param method name of the method
* @param arg1 the class of the only argument for this method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastMethod(String method, Class arg1);
/**
* gets an instance method with two arguments.
* @param method name of the method
* @param arg1 the java class of the first argument for this method
* @param arg2 the java class of the second argument for this method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getMethod(String method, Class arg1, Class arg2);
/**
* gets a fast instance method with two arguments.
* @param method name of the method
* @param arg1 the java class of the first argument for this method
* @param arg2 the java class of the second argument for this method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastMethod(String method, Class arg1, Class arg2);
/**
* gets an instance method with two arguments.
* @param method name of the method
* @param arg1 the java class of the first argument for this method
* @param arg2 the java class of the second argument for this method
* @param arg3 the java class of the second argument for this method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getMethod(String method, Class arg1, Class arg2, Class arg3);
/**
* gets a fast instance method with two arguments.
* @param method name of the method
* @param arg1 the java class of the first argument for this method
* @param arg2 the java class of the second argument for this method
* @param arg3 the java class of the second argument for this method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastMethod(String method, Class arg1, Class arg2, Class arg3);
/**
* gets a singleton (class) method without arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getSingletonMethod(String method);
/**
* gets a fast singleton (class) method without arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
*/
public abstract Callback getFastSingletonMethod(String method);
/**
* gets a singleton (class) method with 1 argument.
* @param method name of the method
* @param arg1 the class of the only argument for this method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getSingletonMethod(String method, Class arg1);
/**
* gets a fast singleton (class) method with 1 argument.
* @param method name of the method
* @param arg1 the class of the only argument for this method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastSingletonMethod(String method, Class arg1);
/**
* gets a singleton (class) method with 2 arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getSingletonMethod(String method, Class arg1, Class arg2);
/**
* gets a fast singleton (class) method with 2 arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastSingletonMethod(String method, Class arg1, Class arg2);
/**
* gets a singleton (class) method with 3 arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getSingletonMethod(String method, Class arg1, Class arg2, Class arg3);
/**
* gets a fast singleton (class) method with 3 arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastSingletonMethod(String method, Class arg1, Class arg2, Class arg3);
public abstract Callback getBlockMethod(String method);
public abstract CompiledBlockCallback getBlockCallback(String method, Object scriptObject);
/**
* gets a singleton (class) method with no mandatory argument and some optional arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getOptSingletonMethod(String method);
/**
* gets a fast singleton (class) method with no mandatory argument and some optional arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastOptSingletonMethod(String method);
/**
* gets an instance method with no mandatory argument and some optional arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getOptMethod(String method);
/**
* gets a fast instance method with no mandatory argument and some optional arguments.
* @param method name of the method
* @return a CallBack object corresponding to the appropriate method
* @deprecated Callbacks are inefficient; use MethodFactory.
**/
public abstract Callback getFastOptMethod(String method);
private static final boolean reflection;
private static final boolean dumping;
static {
boolean reflection_ = false;
boolean dumping_ = false;
if (Ruby.isSecurityRestricted()) {
reflection_ = true;
} else {
if (SafePropertyAccessor.getProperty("jruby.reflection") != null && SafePropertyAccessor.getBoolean("jruby.reflection")) {
reflection_ = true;
}
if (SafePropertyAccessor.getProperty("jruby.dump_invocations") != null) {
dumping_ = true;
}
}
reflection = reflection_;
dumping = dumping_;
}
public static CallbackFactory createFactory(Ruby runtime, Class type) {
return createFactory(runtime, type, runtime.getJRubyClassLoader());
}
// used by compiler
public static CallbackFactory createFactory(Ruby runtime, Class type, ClassLoader classLoader) {
if (reflection) {
return new ReflectionCallbackFactory(type);
} else if (dumping) {
return new DumpingInvocationCallbackFactory(runtime, type, classLoader);
} else {
// FIXME: No, I don't like it.
return new InvocationCallbackFactory(runtime, type, classLoader);
}
}
}