org.apache.axiom.util.base64.Base64EncodingStringBufferOutputStream Maven / Gradle / Ivy
/*
* 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.axiom.util.base64;
import java.io.IOException;
import java.io.OutputStream;
/**
* {@link OutputStream} implementation that writes base64 encoded data to a {@link StringBuffer} or
* {@link StringBuilder}. The data is not buffered before writing it to the target.
*/
public class Base64EncodingStringBufferOutputStream extends AbstractBase64EncodingOutputStream {
private final Appendable buffer;
/**
* Constructor.
*
* @param buffer the buffer to append the encoded data to
*/
public Base64EncodingStringBufferOutputStream(StringBuffer buffer) {
this.buffer = buffer;
}
/**
* Constructor.
*
* @param buffer the buffer to append the encoded data to
*/
public Base64EncodingStringBufferOutputStream(StringBuilder buffer) {
this.buffer = buffer;
}
protected void doWrite(byte[] b) throws IOException {
for (int i=0; i<4; i++) {
buffer.append((char)(b[i] & 0xFF));
}
}
protected void flushBuffer() throws IOException {
// Nothing to do
}
protected void doClose() throws IOException {
// Nothing to do
}
protected void doFlush() throws IOException {
// Nothing to do
}
}