org.apache.cxf.helpers.LoadingByteArrayOutputStream 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.cxf.helpers;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
/**
* Subclass of ByteArrayOutputStream that allows creation of a
* ByteArrayInputStream directly without creating a copy of the byte[].
*
* Also, on "toByteArray()" it truncates it's buffer to the current size
* and returns the new buffer directly. Multiple calls to toByteArray()
* will return the exact same byte[] unless a write is called in between.
*
* Note: once the InputStream is created, the output stream should
* no longer be used. In particular, make sure not to call reset()
* and then write as that may overwrite the data that the InputStream
* is using.
*/
public class LoadingByteArrayOutputStream extends ByteArrayOutputStream {
public LoadingByteArrayOutputStream() {
super(1024);
}
public LoadingByteArrayOutputStream(int i) {
super(i);
}
public ByteArrayInputStream createInputStream() {
return new ByteArrayInputStream(buf, 0, count) {
public String toString() {
return IOUtils.newStringFromBytes(buf, 0, count);
}
};
}
public void setSize(int i) {
count = i;
}
public byte[] toByteArray() {
if (count != buf.length) {
buf = super.toByteArray();
}
return buf;
}
public byte[] getRawBytes() {
return buf;
}
}