org.jruby.javasupport.JavaArrayUtilities Maven / Gradle / Ivy
/***** 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
*
* 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
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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.builtin.IRubyObject;
import org.jruby.util.ByteList;
import org.jruby.anno.JRubyModule;
import org.jruby.java.proxies.ArrayJavaProxy;
import org.jruby.java.proxies.JavaProxy;
import org.jruby.runtime.ThreadContext;
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();
byte[] bytes = null;
if (wrappedObject instanceof JavaProxy) {
Object wrapped = ((JavaProxy)wrappedObject).getObject();
if (wrapped instanceof byte[]) {
bytes = (byte[])wrapped;
}
} else {
IRubyObject byteArray = (JavaObject)wrappedObject.dataGetStruct();
if (byteArray instanceof JavaArray &&
((JavaArray)byteArray).getValue() instanceof byte[]) {
bytes = (byte[])((JavaArray)byteArray).getValue();
}
}
if (bytes == null) {
throw runtime.newTypeError("wrong argument type " + wrappedObject.getMetaClass() +
" (expected byte[])");
}
return runtime.newString(new ByteList(bytes, 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 JavaUtil.convertJavaToUsableRubyObject(runtime, ((RubyString)string).getBytes());
}
@JRubyMethod(module = true)
public static IRubyObject java_to_ruby(ThreadContext context, IRubyObject recv, IRubyObject ary) {
if (!(ary instanceof ArrayJavaProxy)) {
throw context.runtime.newTypeError(ary, context.runtime.getJavaSupport().getArrayProxyClass());
}
return ((ArrayJavaProxy)ary).to_a(context);
}
}