/*
* 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.geode.internal.io;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/**
* Delegates all operations to the original underlying OutputStream and a mutable branch
* OutputStream.
*
* @since GemFire 7.0
*/
public class TeeOutputStream extends FilterOutputStream {
private volatile OutputStream branch;
public TeeOutputStream(OutputStream out) {
super(out);
}
public TeeOutputStream(OutputStream out, OutputStream branch) {
this(out);
this.branch = branch;
}
public OutputStream getOutputStream() {
return super.out;
}
public OutputStream getBranchOutputStream() {
return this.branch;
}
public void setBranchOutputStream(OutputStream branch) {
if (branch == super.out) {
throw new IllegalArgumentException("TeeOutputStream cannot set branch same as out");
}
this.branch = branch;
}
@Override
public void write(int b) throws IOException {
super.write(b);
OutputStream os = this.branch;
if (os != null) {
os.write(b);
}
}
@Override
public void flush() throws IOException {
super.flush();
OutputStream os = this.branch;
if (os != null) {
os.flush();
}
}
@Override
public void close() throws IOException {
super.close();
OutputStream os = this.branch;
if (os != null) {
os.close();
}
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder(getClass().getSimpleName());
sb.append("@").append(System.identityHashCode(this)).append("{");
sb.append("outputStream=").append(super.out);
sb.append(", branchOutputStream=").append(this.branch);
return sb.append("}").toString();
}
}