/*
 * 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.sshd.common.util.io.output;

import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * TODO Add javadoc
 *
 * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
 */
public class NoCloseOutputStream extends FilterOutputStream {
    public NoCloseOutputStream(OutputStream out) {
        super(out);
    }

    @Override
    public void close() throws IOException {
        // ignored
    }

    @Override
    public void write(byte[] b, int off, int len) throws IOException {
        out.write(b, off, len);
    }

    public static OutputStream resolveOutputStream(OutputStream output, boolean okToClose) {
        if ((output == null) || okToClose) {
            return output;
        } else {
            return new NoCloseOutputStream(output);
        }
    }
}
