Package org.jruby.javasupport

Source Code of org.jruby.javasupport.JavaArrayUtilities

/***** 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) 2007 William N Dortch <bill.dortch@gmail.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
* 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
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* 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.javasupport;

import org.jruby.Ruby;
import org.jruby.RubyModule;
import org.jruby.RubyString;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Block;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.util.ByteList;
import org.jruby.anno.JRubyModule;
import org.jruby.runtime.Visibility;

/**
* @author Bill Dortch
*
*/
@JRubyModule(name="JavaArrayUtilities")
public class JavaArrayUtilities {

    public static RubyModule createJavaArrayUtilitiesModule(Ruby runtime) {
        RubyModule javaArrayUtils = runtime.defineModule("JavaArrayUtilities");
        javaArrayUtils.defineAnnotatedMethods(JavaArrayUtilities.class);
        return javaArrayUtils;
    }
   
    @JRubyMethod(module = true, visibility = Visibility.PRIVATE)
    public static IRubyObject bytes_to_ruby_string(IRubyObject recv, IRubyObject wrappedObject) {
        Ruby runtime = recv.getRuntime();
        IRubyObject byteArray = (JavaObject)wrappedObject.dataGetStruct();
        if (!(byteArray instanceof JavaArray &&
                ((JavaArray)byteArray).getValue() instanceof byte[])) {
            throw runtime.newTypeError("wrong argument type " + wrappedObject.getMetaClass() +
                    " (expected byte[])");
        }
        return runtime.newString(new ByteList((byte[])((JavaArray)byteArray).getValue(), true));
    }
   
    @JRubyMethod(module = true, visibility = Visibility.PRIVATE)
    public static IRubyObject ruby_string_to_bytes(IRubyObject recv, IRubyObject string) {
        Ruby runtime = recv.getRuntime();
        if (!(string instanceof RubyString)) {
            throw runtime.newTypeError(string, runtime.getString());
        }
        return Java.java_to_ruby(recv,
                JavaObject.wrap(runtime, ((RubyString)string).getBytes()),
                Block.NULL_BLOCK);
    }

}
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