| /** |
| * 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.spi.DataFormatName; |
| import org.apache.camel.support.ServiceSupport; |
| 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 extends ServiceSupport implements DataFormat, DataFormatName { |
| |
| private int lineLength = Base64.MIME_CHUNK_SIZE; |
| private byte[] lineSeparator = {'\r', '\n'}; |
| private boolean urlSafe; |
| |
| @Override |
| public String getDataFormatName() { |
| return "base64"; |
| } |
| |
| @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; |
| } |
| |
| @Override |
| protected void doStart() throws Exception { |
| // noop |
| } |
| |
| @Override |
| protected void doStop() throws Exception { |
| // noop |
| } |
| } |