diff options
Diffstat (limited to 'org/apache/commons/net/io/DotTerminatedMessageWriter.java')
| -rw-r--r-- | org/apache/commons/net/io/DotTerminatedMessageWriter.java | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/org/apache/commons/net/io/DotTerminatedMessageWriter.java b/org/apache/commons/net/io/DotTerminatedMessageWriter.java deleted file mode 100644 index 853e42f..0000000 --- a/org/apache/commons/net/io/DotTerminatedMessageWriter.java +++ /dev/null @@ -1,215 +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.IOException;
-import java.io.Writer;
-
-/***
- * DotTerminatedMessageWriter is a class used to write messages to a
- * server that are terminated by a single dot followed by a
- * <CR><LF>
- * sequence and with double dots appearing at the begining of lines which
- * do not signal end of message yet start with a dot. Various Internet
- * protocols such as NNTP and POP3 produce messages of this type.
- * <p>
- * This class handles the doubling of line-starting periods,
- * converts single linefeeds to NETASCII newlines, and on closing
- * will send the final message terminator dot and NETASCII newline
- * sequence.
- * <p>
- * <p>
- * @author Daniel F. Savarese
- ***/
-
-public final class DotTerminatedMessageWriter extends Writer
-{
- private static final int __NOTHING_SPECIAL_STATE = 0;
- private static final int __LAST_WAS_CR_STATE = 1;
- private static final int __LAST_WAS_NL_STATE = 2;
-
- private int __state;
- private Writer __output;
-
-
- /***
- * Creates a DotTerminatedMessageWriter that wraps an existing Writer
- * output destination.
- * <p>
- * @param output The Writer output destination to write the message.
- ***/
- public DotTerminatedMessageWriter(Writer output)
- {
- super(output);
- __output = output;
- __state = __NOTHING_SPECIAL_STATE;
- }
-
-
- /***
- * Writes a character to the output. Note that a call to this method
- * may result in multiple writes to the underling Writer in order to
- * convert naked linefeeds to NETASCII line separators and to double
- * line-leading periods. This is transparent to the programmer and
- * is only mentioned for completeness.
- * <p>
- * @param ch The character to write.
- * @exception IOException If an error occurs while writing to the
- * underlying output.
- ***/
- @Override
- public void write(int ch) throws IOException
- {
- synchronized (lock)
- {
- switch (ch)
- {
- case '\r':
- __state = __LAST_WAS_CR_STATE;
- __output.write('\r');
- return ;
- case '\n':
- if (__state != __LAST_WAS_CR_STATE)
- __output.write('\r');
- __output.write('\n');
- __state = __LAST_WAS_NL_STATE;
- return ;
- case '.':
- // Double the dot at the beginning of a line
- if (__state == __LAST_WAS_NL_STATE)
- __output.write('.');
- // Fall through
- default:
- __state = __NOTHING_SPECIAL_STATE;
- __output.write(ch);
- return ;
- }
- }
- }
-
-
- /***
- * Writes a number of characters from a character array to the output
- * starting from a given offset.
- * <p>
- * @param buffer The character array to write.
- * @param offset The offset into the array at which to start copying data.
- * @param length The number of characters to write.
- * @exception IOException If an error occurs while writing to the underlying
- * output.
- ***/
- @Override
- public void write(char[] buffer, int offset, int length) throws IOException
- {
- synchronized (lock)
- {
- while (length-- > 0)
- write(buffer[offset++]);
- }
- }
-
-
- /***
- * Writes a character array to the output.
- * <p>
- * @param buffer The character array to write.
- * @exception IOException If an error occurs while writing to the underlying
- * output.
- ***/
- @Override
- public void write(char[] buffer) throws IOException
- {
- write(buffer, 0, buffer.length);
- }
-
-
- /***
- * Writes a String to the output.
- * <p>
- * @param string The String to write.
- * @exception IOException If an error occurs while writing to the underlying
- * output.
- ***/
- @Override
- public void write(String string) throws IOException
- {
- write(string.toCharArray());
- }
-
-
- /***
- * Writes part of a String to the output starting from a given offset.
- * <p>
- * @param string The String to write.
- * @param offset The offset into the String at which to start copying data.
- * @param length The number of characters to write.
- * @exception IOException If an error occurs while writing to the underlying
- * output.
- ***/
- @Override
- public void write(String string, int offset, int length) throws IOException
- {
- write(string.toCharArray(), offset, length);
- }
-
-
- /***
- * Flushes the underlying output, writing all buffered output.
- * <p>
- * @exception IOException If an error occurs while writing to the underlying
- * output.
- ***/
- @Override
- public void flush() throws IOException
- {
- synchronized (lock)
- {
- __output.flush();
- }
- }
-
-
- /***
- * Flushes the underlying output, writing all buffered output, but doesn't
- * actually close the underlying stream. The underlying stream may still
- * be used for communicating with the server and therefore is not closed.
- * <p>
- * @exception IOException If an error occurs while writing to the underlying
- * output or closing the Writer.
- ***/
- @Override
- public void close() throws IOException
- {
- synchronized (lock)
- {
- if (__output == null)
- return ;
-
- if (__state == __LAST_WAS_CR_STATE)
- __output.write('\n');
- else if (__state != __LAST_WAS_NL_STATE)
- __output.write("\r\n");
-
- __output.write(".\r\n");
-
- __output.flush();
- __output = null;
- }
- }
-
-}
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