/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 org.apache.camel.component.netty4;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.UnsupportedEncodingException;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stax.StAXSource;
import javax.xml.transform.stream.StreamSource;
import org.w3c.dom.Document;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.buffer.ByteBufInputStream;
import org.apache.camel.Converter;
import org.apache.camel.Exchange;
/**
* A set of converter methods for working with Netty types
*
* @version
*/
@Converter
public final class NettyConverter {
private NettyConverter() {
//Utility Class
}
@Converter
public static byte[] toByteArray(ByteBuf buffer, Exchange exchange) {
byte[] bytes = new byte[buffer.readableBytes()];
int readerIndex = buffer.readerIndex();
buffer.getBytes(readerIndex, bytes);
return bytes;
}
@Converter
public static String toString(ByteBuf buffer, Exchange exchange) throws UnsupportedEncodingException {
byte[] bytes = toByteArray(buffer, exchange);
// use type converter as it can handle encoding set on the Exchange
if (exchange != null) {
return exchange.getContext().getTypeConverter().convertTo(String.class, exchange, bytes);
}
return new String(bytes, "UTF-8");
}
@Converter
public static InputStream toInputStream(ByteBuf buffer, Exchange exchange) {
return new ByteBufInputStream(buffer);
}
@Converter
public static ObjectInput toObjectInput(ByteBuf buffer, Exchange exchange) throws IOException {
InputStream is = toInputStream(buffer, exchange);
return new ObjectInputStream(is);
}
@Converter
public static ByteBuf toByteBuffer(byte[] bytes) {
ByteBuf buf = ByteBufAllocator.DEFAULT.buffer(bytes.length);
buf.writeBytes(bytes);
return buf;
}
@Converter
public static ByteBuf toByteBuffer(String s, Exchange exchange) {
byte[] bytes;
if (exchange != null) {
// use type converter as it can handle encoding set on the Exchange
bytes = exchange.getContext().getTypeConverter().convertTo(byte[].class, exchange, s);
} else {
bytes = s.getBytes();
}
return toByteBuffer(bytes);
}
@Converter
public static Document toDocument(ByteBuf buffer, Exchange exchange) {
InputStream is = toInputStream(buffer, exchange);
return exchange.getContext().getTypeConverter().convertTo(Document.class, exchange, is);
}
@Converter
public static DOMSource toDOMSource(ByteBuf buffer, Exchange exchange) {
InputStream is = toInputStream(buffer, exchange);
return exchange.getContext().getTypeConverter().convertTo(DOMSource.class, exchange, is);
}
@Converter
public static SAXSource toSAXSource(ByteBuf buffer, Exchange exchange) {
InputStream is = toInputStream(buffer, exchange);
return exchange.getContext().getTypeConverter().convertTo(SAXSource.class, exchange, is);
}
@Converter
public static StreamSource toStreamSource(ByteBuf buffer, Exchange exchange) {
InputStream is = toInputStream(buffer, exchange);
return exchange.getContext().getTypeConverter().convertTo(StreamSource.class, exchange, is);
}
@Converter
public static StAXSource toStAXSource(ByteBuf buffer, Exchange exchange) {
InputStream is = toInputStream(buffer, exchange);
return exchange.getContext().getTypeConverter().convertTo(StAXSource.class, exchange, is);
}
}