/***** 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
* 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 *****/
/**
* $Id$
*/
package org.jruby.util;
import java.io.IOException;
import java.io.Reader;
import org.jruby.RubyString;
import org.jruby.runtime.builtin.IRubyObject;
/**
* @author <a href="mailto:ola.bini@ki.se">Ola Bini</a>
* @version $Revision$
*/
@Deprecated
public class IOReader extends Reader {
private final IRubyObject io;
public IOReader(final IRubyObject io) {
if(!io.respondsTo("read")) {
throw new IllegalArgumentException("Object: " + io + " is not a legal argument to this wrapper, cause it doesn't respond to \"read\".");
}
this.io = io;
}
public void close() throws IOException {
if(io.respondsTo("close")) {
io.callMethod(io.getRuntime().getCurrentContext(), "close");
}
}
public int read(final char[] arr, final int off, final int len) {
final IRubyObject read = io.callMethod(io.getRuntime().getCurrentContext(),"read", io.getRuntime().newFixnum(len));
if(read.isNil() || ((RubyString)read).getByteList().realSize == 0) {
return -1;
} else {
final RubyString str = (RubyString)read;
final ByteList val = str.getByteList();
System.arraycopy(ByteList.plain(val.bytes,val.begin,val.realSize),0,arr,off,val.realSize);
return val.realSize;
}
}
}// IOReader