From 063284837c8c366e5502b1b0264b8eb807b61732 Mon Sep 17 00:00:00 2001
From: Joe Robinson <joe@lc8n.com>
Date: Wed, 27 Oct 2010 14:21:09 +0100
Subject: Basic upload functionality to predifined location, with basic file
 browser

---
 .../commons/net/io/ToNetASCIIOutputStream.java     | 119 +++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 src/org/apache/commons/net/io/ToNetASCIIOutputStream.java

(limited to 'src/org/apache/commons/net/io/ToNetASCIIOutputStream.java')

diff --git a/src/org/apache/commons/net/io/ToNetASCIIOutputStream.java b/src/org/apache/commons/net/io/ToNetASCIIOutputStream.java
new file mode 100644
index 0000000..aeacc98
--- /dev/null
+++ b/src/org/apache/commons/net/io/ToNetASCIIOutputStream.java
@@ -0,0 +1,119 @@
+/*
+ * 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
+ * &lt;LF&gt; (linefeed) characters with &lt;CR&gt;&lt;LF&gt; (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 ToNetASCIIOutputStream extends FilterOutputStream
+{
+    private boolean __lastWasCR;
+
+    /***
+     * Creates a ToNetASCIIOutputStream instance that wraps an existing
+     * OutputStream.
+     * <p>
+     * @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.
+     * <p>
+     * @param ch The byte to write.
+     * @exception 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.
+     * <p>
+     * @param buffer  The byte array to write.
+     * @exception 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.
+     * <p>
+     * @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.
+     * @exception 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++]);
+    }
+
+}
-- 
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