org.apache.axiom.util.base64.NoCopyCharArrayWriter 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.CharArrayWriter;
/**
* Modified {@link CharArrayWriter} that returns the internal buffer (instead of a copy) if the
* buffer has just the right size, i.e. if the size of the buffer is equal to the number of
* characters that have been written.
*/
class NoCopyCharArrayWriter extends CharArrayWriter {
NoCopyCharArrayWriter(int expectedSize) {
super(expectedSize);
}
@Override
public char[] toCharArray() {
return count == buf.length ? buf : super.toCharArray();
}
}