commons-net-3.6.jar - Apache Commons Net

commons-net-3.6.jar is the JAR file for Apache Commons Net 3.6, which implements the client side of many basic Internet protocols.

commons-net-3.6.jar is distributed as part of the commons-net-3.6-bin.zip download file.

JAR File Size and Download Location:

JAR name: commons-net.jar, commons-net-3.6.jar
Target JDK version: 1.6
Dependency: None
File name: commons-net-3.6.jar
File size: 307410 bytes
Release date: 2017-02-11
Download: Apache Commons Net

✍: FYIcenter

org/apache/commons/net/io/ToNetASCIIOutputStream.java

/*
 * 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.commons.net.io;

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

/***
 * This class wraps an output stream, replacing all singly occurring
 * <LF> (linefeed) characters with <CR><LF> (carriage return
 * followed by linefeed), which is the NETASCII standard for representing
 * a newline.
 * You would use this class to implement ASCII file transfers requiring
 * conversion to NETASCII.
 *
 *
 ***/

public final class ToNetASCIIOutputStream extends FilterOutputStream
{
    private boolean __lastWasCR;

    /***
     * Creates a ToNetASCIIOutputStream instance that wraps an existing
     * OutputStream.
     *
     * @param output  The OutputStream to wrap.
     ***/
    public ToNetASCIIOutputStream(OutputStream output)
    {
        super(output);
        __lastWasCR = false;
    }


    /***
     * Writes a byte to the stream.    Note that a call to this method
     * may result in multiple writes to the underlying input stream in order
     * to convert naked newlines to NETASCII line separators.
     * This is transparent to the programmer and is only mentioned for
     * completeness.
     *
     * @param ch The byte to write.
     * @throws IOException If an error occurs while writing to the underlying
     *            stream.
     ***/
    @Override
    public synchronized void write(int ch)
    throws IOException
    {
        switch (ch)
        {
        case '\r':
            __lastWasCR = true;
            out.write('\r');
            return ;
        case '\n':
            if (!__lastWasCR) {
                out.write('\r');
            }
            //$FALL-THROUGH$
        default:
            __lastWasCR = false;
            out.write(ch);
            return ;
        }
    }


    /***
     * Writes a byte array to the stream.
     *
     * @param buffer  The byte array to write.
     * @throws IOException If an error occurs while writing to the underlying
     *            stream.
     ***/
    @Override
    public synchronized void write(byte buffer[])
    throws IOException
    {
        write(buffer, 0, buffer.length);
    }


    /***
     * Writes a number of bytes from a byte array to the stream starting from
     * a given offset.
     *
     * @param buffer  The byte array to write.
     * @param offset  The offset into the array at which to start copying data.
     * @param length  The number of bytes to write.
     * @throws IOException If an error occurs while writing to the underlying
     *            stream.
     ***/
    @Override
    public synchronized void write(byte buffer[], int offset, int length)
    throws IOException
    {
        while (length-- > 0) {
            write(buffer[offset++]);
        }
    }

}

org/apache/commons/net/io/ToNetASCIIOutputStream.java

 

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