/**
* 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.dataformat.base64;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.camel.Exchange;
import org.apache.camel.spi.DataFormat;
import org.apache.camel.util.ExchangeHelper;
import org.apache.camel.util.IOHelper;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.binary.Base64InputStream;
import org.apache.commons.codec.binary.Base64OutputStream;
public class Base64DataFormat implements DataFormat {
private int lineLength = Base64.MIME_CHUNK_SIZE;
private byte[] lineSeparator = {'\r', '\n'};
private boolean urlSafe;
@Override
public void marshal(Exchange exchange, Object graph, OutputStream stream) throws Exception {
if (urlSafe) {
marshalUrlSafe(exchange, graph, stream);
} else {
marshalStreaming(exchange, graph, stream);
}
}
private void marshalStreaming(Exchange exchange, Object graph, OutputStream stream) throws Exception {
InputStream decoded = ExchangeHelper.convertToMandatoryType(exchange, InputStream.class, graph);
Base64OutputStream base64Output = new Base64OutputStream(stream, true, lineLength, lineSeparator);
try {
IOHelper.copy(decoded, base64Output);
} finally {
IOHelper.close(decoded, base64Output);
}
}
private void marshalUrlSafe(Exchange exchange, Object graph, OutputStream stream) throws Exception {
byte[] decoded = ExchangeHelper.convertToMandatoryType(exchange, byte[].class, graph);
Base64 codec = new Base64(lineLength, lineSeparator, true);
byte[] encoded = codec.encode(decoded);
stream.write(encoded);
stream.flush();
}
@Override
public Object unmarshal(Exchange exchange, InputStream input) throws Exception {
return new Base64InputStream(input, false, lineLength, lineSeparator);
}
public int getLineLength() {
return lineLength;
}
public void setLineLength(int lineLength) {
this.lineLength = lineLength;
}
public byte[] getLineSeparator() {
return lineSeparator;
}
public void setLineSeparator(byte[] lineSeparator) {
this.lineSeparator = lineSeparator;
}
public boolean isUrlSafe() {
return urlSafe;
}
public void setUrlSafe(boolean urlSafe) {
this.urlSafe = urlSafe;
}
}