/***** 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) 2006 Ola Bini <ola@ologix.com>
*
* 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
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* decision by deleting the provisions above and replace them with the notice
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***** END LICENSE BLOCK *****/
package org.jruby.runtime.callback;
import org.jruby.Ruby;
import org.jruby.runtime.Arity;
import org.jruby.runtime.Block;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.exceptions.RaiseException;
import org.jruby.exceptions.JumpException;
import org.jruby.exceptions.ThreadKill;
import org.jruby.exceptions.MainExitException;
/**
* @author <a href="mailto:ola.bini@ki.se">Ola Bini</a>
*/
public abstract class InvocationCallback implements Callback {
public static final Class[] EMPTY_ARGS = new Class[0];
public static final Class[] OPTIONAL_ARGS = new Class[] {IRubyObject[].class};
protected int arityValue;
protected Arity arity;
private Class[] argumentTypes;
private String javaName;
private boolean isSingleton;
public InvocationCallback() {
this.argumentTypes = EMPTY_ARGS;
}
public IRubyObject execute(IRubyObject recv, IRubyObject[] oargs, Block block) {
if (arityValue >= 0) {
if (oargs.length != arityValue) {
throw recv.getRuntime().newArgumentError("wrong number of arguments(" + oargs.length + " for " + arityValue + ")");
}
} else {
if (oargs.length < -(1 + arityValue)) {
throw recv.getRuntime().newArgumentError("wrong number of arguments(" + oargs.length + " for " + -(1 + arityValue) + ")");
}
}
try {
return call(recv,oargs,block);
} catch(RaiseException e) {
throw e;
} catch(JumpException e) {
throw e;
} catch(ThreadKill e) {
throw e;
} catch(MainExitException e) {
throw e;
} catch(Exception e) {
Ruby runtime = recv.getRuntime();
runtime.getJavaSupport().handleNativeException(e);
return runtime.getNil();
}
}
public abstract IRubyObject call(Object receiver, Object[] args, Block block);
public void setArity(Arity arity) {
this.arity = arity;
this.arityValue = arity.getValue();
}
public Arity getArity() {
return arity;
}
public void setArgumentTypes(Class[] argumentTypes) {
this.argumentTypes = argumentTypes;
}
public Class[] getArgumentTypes() {
return argumentTypes;
}
public void setJavaName(String javaName) {
this.javaName = javaName;
}
public String getJavaName() {
return javaName;
}
public void setSingleton(boolean isSingleton) {
this.isSingleton = isSingleton;
}
public boolean isSingleton() {
return isSingleton;
}
}// InvocationCallback