net.schmizz.sshj.transport.Reader Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of sshj Show documentation
SSHv2 library for Java
There is a newer version: 0.10.0
/*
 * Copyright 2010 Shikhar Bhushan
 *
 * Licensed 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.
 *
 * This file may incorporate work covered by the following copyright and
 * permission notice:
 *
 *     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 net.schmizz.sshj.transport;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.InputStream;

final class Reader
        extends Thread {

    private final Logger log = LoggerFactory.getLogger(getClass());

    private final TransportImpl trans;

    Reader(TransportImpl trans) {
        this.trans = trans;
        setName("reader");
    }

    @Override
    public void run() {
        final Thread curThread = Thread.currentThread();

        try {

            final Decoder decoder = trans.getDecoder();
            final InputStream inp = trans.getConnInfo().in;

            final byte[] recvbuf = new byte[decoder.getMaxPacketLength()];

            int needed = 1;

            while (!curThread.isInterrupted()) {
                int read = inp.read(recvbuf, 0, needed);
                if (read == -1)
                    throw new TransportException("Broken transport; encountered EOF");
                else
                    needed = decoder.received(recvbuf, read);
            }

        } catch (Exception e) {
            if (curThread.isInterrupted()) {
                // We are meant to shut up and draw to a close if interrupted
            } else
                trans.die(e);
        }

        log.debug("Stopping");
    }

}