com.phloc.commons.i18n.CodepointIteratorReadableByteChannel Maven / Gradle / Ivy
/**
* Copyright (C) 2006-2014 phloc systems
* http://www.phloc.com
* office[at]phloc[dot]com
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.phloc.commons.i18n;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
import java.nio.charset.Charset;
import javax.annotation.Nonnull;
import javax.annotation.WillClose;
import com.phloc.commons.io.streams.NonBlockingByteArrayOutputStream;
import com.phloc.commons.io.streams.StreamUtils;
/**
* @author Apache Abdera
*/
public class CodepointIteratorReadableByteChannel extends CodepointIteratorByteBuffer
{
@Nonnull
private static ByteBuffer _convert (@Nonnull @WillClose final ReadableByteChannel aChannel) throws IOException
{
try
{
final ByteBuffer buf = ByteBuffer.allocate (1024);
final NonBlockingByteArrayOutputStream aBAOS = new NonBlockingByteArrayOutputStream ();
final WritableByteChannel aOutChannel = Channels.newChannel (aBAOS);
while (aChannel.read (buf) > 0)
{
buf.flip ();
aOutChannel.write (buf);
}
return ByteBuffer.wrap (aBAOS.toByteArray ());
}
finally
{
StreamUtils.close (aChannel);
}
}
public CodepointIteratorReadableByteChannel (@Nonnull @WillClose final ReadableByteChannel aChannel,
@Nonnull final Charset aCharset) throws IOException
{
super (_convert (aChannel), aCharset);
}
}