io.netty.handler.codec.xml.XmlDecoder Maven / Gradle / Ivy
/*
* Copyright 2014 The Netty Project
*
* The Netty Project licenses this file to you 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 io.netty.handler.codec.xml;
import com.fasterxml.aalto.AsyncByteArrayFeeder;
import com.fasterxml.aalto.AsyncXMLInputFactory;
import com.fasterxml.aalto.AsyncXMLStreamReader;
import com.fasterxml.aalto.stax.InputFactoryImpl;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import java.util.List;
/**
* Async XML decoder based on Aalto XML parser.
*
* Parses the incoming data into one of XML messages defined in this package.
*/
public class XmlDecoder extends ByteToMessageDecoder {
private static final AsyncXMLInputFactory XML_INPUT_FACTORY = new InputFactoryImpl();
private static final XmlDocumentEnd XML_DOCUMENT_END = XmlDocumentEnd.INSTANCE;
private final AsyncXMLStreamReader streamReader = XML_INPUT_FACTORY.createAsyncForByteArray();
private final AsyncByteArrayFeeder streamFeeder = (AsyncByteArrayFeeder) streamReader.getInputFeeder();
@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List