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-rw-r--r--org/apache/commons/net/discard/DiscardTCPClient.java67
-rw-r--r--org/apache/commons/net/discard/DiscardUDPClient.java97
2 files changed, 164 insertions, 0 deletions
diff --git a/org/apache/commons/net/discard/DiscardTCPClient.java b/org/apache/commons/net/discard/DiscardTCPClient.java
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+++ b/org/apache/commons/net/discard/DiscardTCPClient.java
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+/*
+ * 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.discard;
+
+import java.io.OutputStream;
+
+import org.apache.commons.net.SocketClient;
+
+/***
+ * The DiscardTCPClient class is a TCP implementation of a client for the
+ * Discard protocol described in RFC 863. To use the class, merely
+ * establish a connection with
+ * {@link org.apache.commons.net.SocketClient#connect connect }
+ * and call {@link #getOutputStream getOutputStream() } to
+ * retrieve the discard output stream. Don't close the output stream
+ * when you're done writing to it. Rather, call
+ * {@link org.apache.commons.net.SocketClient#disconnect disconnect }
+ * to clean up properly.
+ * <p>
+ * <p>
+ * @author Daniel F. Savarese
+ * @see DiscardUDPClient
+ ***/
+
+public class DiscardTCPClient extends SocketClient
+{
+ /*** The default discard port. It is set to 9 according to RFC 863. ***/
+ public static final int DEFAULT_PORT = 9;
+
+ /***
+ * The default DiscardTCPClient constructor. It merely sets the default
+ * port to <code> DEFAULT_PORT </code>.
+ ***/
+ public DiscardTCPClient ()
+ {
+ setDefaultPort(DEFAULT_PORT);
+ }
+
+ /***
+ * Returns an OutputStream through which you may write data to the server.
+ * You should NOT close the OutputStream when you're finished
+ * reading from it. Rather, you should call
+ * {@link org.apache.commons.net.SocketClient#disconnect disconnect }
+ * to clean up properly.
+ * <p>
+ * @return An OutputStream through which you can write data to the server.
+ ***/
+ public OutputStream getOutputStream()
+ {
+ return _output_;
+ }
+}
diff --git a/org/apache/commons/net/discard/DiscardUDPClient.java b/org/apache/commons/net/discard/DiscardUDPClient.java
new file mode 100644
index 0000000..a81b955
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+++ b/org/apache/commons/net/discard/DiscardUDPClient.java
@@ -0,0 +1,97 @@
+/*
+ * 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.discard;
+
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.InetAddress;
+
+import org.apache.commons.net.DatagramSocketClient;
+
+/***
+ * The DiscardUDPClient class is a UDP implementation of a client for the
+ * Discard protocol described in RFC 863. To use the class,
+ * just open a local UDP port
+ * with {@link org.apache.commons.net.DatagramSocketClient#open open }
+ * and call {@link #send send } to send datagrams to the server
+ * After you're done sending discard data, call
+ * {@link org.apache.commons.net.DatagramSocketClient#close close() }
+ * to clean up properly.
+ * <p>
+ * <p>
+ * @author Daniel F. Savarese
+ * @see DiscardTCPClient
+ ***/
+
+public class DiscardUDPClient extends DatagramSocketClient
+{
+ /*** The default discard port. It is set to 9 according to RFC 863. ***/
+ public static final int DEFAULT_PORT = 9;
+
+ DatagramPacket _sendPacket;
+
+ public DiscardUDPClient()
+ {
+ _sendPacket = new DatagramPacket(new byte[0], 0);
+ }
+
+
+ /***
+ * Sends the specified data to the specified server at the specified port.
+ * <p>
+ * @param data The discard data to send.
+ * @param length The length of the data to send. Should be less than
+ * or equal to the length of the data byte array.
+ * @param host The address of the server.
+ * @param port The service port.
+ * @exception IOException If an error occurs during the datagram send
+ * operation.
+ ***/
+ public void send(byte[] data, int length, InetAddress host, int port)
+ throws IOException
+ {
+ _sendPacket.setData(data);
+ _sendPacket.setLength(length);
+ _sendPacket.setAddress(host);
+ _sendPacket.setPort(port);
+ _socket_.send(_sendPacket);
+ }
+
+
+ /***
+ * Same as
+ * <code>send(data, length, host. DiscardUDPClient.DEFAULT_PORT)</code>.
+ ***/
+ public void send(byte[] data, int length, InetAddress host)
+ throws IOException
+ {
+ send(data, length, host, DEFAULT_PORT);
+ }
+
+
+ /***
+ * Same as
+ * <code>send(data, data.length, host. DiscardUDPClient.DEFAULT_PORT)</code>.
+ ***/
+ public void send(byte[] data, InetAddress host) throws IOException
+ {
+ send(data, data.length, host, DEFAULT_PORT);
+ }
+
+}
+