diff options
Diffstat (limited to 'org/apache/commons/net/io/ToNetASCIIInputStream.java')
| -rw-r--r-- | org/apache/commons/net/io/ToNetASCIIInputStream.java | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/org/apache/commons/net/io/ToNetASCIIInputStream.java b/org/apache/commons/net/io/ToNetASCIIInputStream.java deleted file mode 100644 index 55e4735..0000000 --- a/org/apache/commons/net/io/ToNetASCIIInputStream.java +++ /dev/null @@ -1,181 +0,0 @@ -/*
- * 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.FilterInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-
-/***
- * This class wraps an input 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.
- * <p>
- * <p>
- * @author Daniel F. Savarese
- ***/
-
-public final class ToNetASCIIInputStream extends FilterInputStream
-{
- private static final int __NOTHING_SPECIAL = 0;
- private static final int __LAST_WAS_CR = 1;
- private static final int __LAST_WAS_NL = 2;
- private int __status;
-
- /***
- * Creates a ToNetASCIIInputStream instance that wraps an existing
- * InputStream.
- * <p>
- * @param input The InputStream to .
- ***/
- public ToNetASCIIInputStream(InputStream input)
- {
- super(input);
- __status = __NOTHING_SPECIAL;
- }
-
-
- /***
- * Reads and returns the next byte in the stream. If the end of the
- * message has been reached, returns -1.
- * <p>
- * @return The next character in the stream. Returns -1 if the end of the
- * stream has been reached.
- * @exception IOException If an error occurs while reading the underlying
- * stream.
- ***/
- @Override
- public int read() throws IOException
- {
- int ch;
-
- if (__status == __LAST_WAS_NL)
- {
- __status = __NOTHING_SPECIAL;
- return '\n';
- }
-
- ch = in.read();
-
- switch (ch)
- {
- case '\r':
- __status = __LAST_WAS_CR;
- return '\r';
- case '\n':
- if (__status != __LAST_WAS_CR)
- {
- __status = __LAST_WAS_NL;
- return '\r';
- }
- // else fall through
- default:
- __status = __NOTHING_SPECIAL;
- return ch;
- }
- // statement not reached
- //return ch;
- }
-
-
- /***
- * Reads the next number of bytes from the stream into an array and
- * returns the number of bytes read. Returns -1 if the end of the
- * stream has been reached.
- * <p>
- * @param buffer The byte array in which to store the data.
- * @return The number of bytes read. Returns -1 if the
- * end of the message has been reached.
- * @exception IOException If an error occurs in reading the underlying
- * stream.
- ***/
- @Override
- public int read(byte buffer[]) throws IOException
- {
- return read(buffer, 0, buffer.length);
- }
-
-
- /***
- * Reads the next number of bytes from the stream into an array and returns
- * the number of bytes read. Returns -1 if the end of the
- * message has been reached. The characters are stored in the array
- * starting from the given offset and up to the length specified.
- * <p>
- * @param buffer The byte array in which to store the data.
- * @param offset The offset into the array at which to start storing data.
- * @param length The number of bytes to read.
- * @return The number of bytes read. Returns -1 if the
- * end of the stream has been reached.
- * @exception IOException If an error occurs while reading the underlying
- * stream.
- ***/
- @Override
- public int read(byte buffer[], int offset, int length) throws IOException
- {
- int ch, off;
-
- if (length < 1)
- return 0;
-
- ch = available();
-
- if (length > ch)
- length = ch;
-
- // If nothing is available, block to read only one character
- if (length < 1)
- length = 1;
-
- if ((ch = read()) == -1)
- return -1;
-
- off = offset;
-
- do
- {
- buffer[offset++] = (byte)ch;
- }
- while (--length > 0 && (ch = read()) != -1);
-
- return (offset - off);
- }
-
- /*** Returns false. Mark is not supported. ***/
- @Override
- public boolean markSupported()
- {
- return false;
- }
-
- @Override
- public int available() throws IOException
- {
- int result;
-
- result = in.available();
-
- if (__status == __LAST_WAS_NL)
- return (result + 1);
-
- return result;
- }
-}
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