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/*
* 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.server.command;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.sshd.server.Command;
import org.apache.sshd.server.Environment;
import org.apache.sshd.server.ExitCallback;
/**
* Implementation of an unknown command that can be returned by <code>CommandFactory</code>
* when the command is not known, as it is supposed to always
* return a valid <code>Command</code> object.
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class UnknownCommand
implements Command
{
private String command
;
private InputStream in
;
private OutputStream out
;
private OutputStream err
;
private ExitCallback callback
;
public UnknownCommand
(String command
) {
this.
command = command
;
}
public void setInputStream
(InputStream in
) {
this.
in = in
;
}
public void setOutputStream
(OutputStream out
) {
this.
out = out
;
}
public void setErrorStream
(OutputStream err
) {
this.
err = err
;
}
public void setExitCallback
(ExitCallback callback
) {
this.
callback = callback
;
}
public void start
(Environment env
) throws IOException {
err.
write(("Unknown command: " + command +
"\n").
getBytes());
err.
flush();
if (callback
!=
null) {
callback.
onExit(1,
"Unknown command: " + command
);
}
}
public void destroy
() {
}
}