001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache license, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the license for the specific language governing permissions and
015 * limitations under the license.
016 */
017package org.apache.logging.log4j.core.util;
018
019import java.io.IOException;
020import java.io.Writer;
021
022public class CloseShieldWriter extends Writer {
023
024    private final Writer delegate;
025
026    public CloseShieldWriter(final Writer delegate) {
027        this.delegate = delegate;
028    }
029
030    @Override
031    public void close() throws IOException {
032        // do not close delegate
033    }
034
035    @Override
036    public void flush() throws IOException {
037        delegate.flush();
038
039    }
040
041    @Override
042    public void write(final char[] cbuf, final int off, final int len) throws IOException {
043        delegate.write(cbuf, off, len);
044    }
045
046}