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authorJoe Robinson <joe@lc8n.com>2010-10-27 14:21:09 +0100
committerJoe Robinson <joe@lc8n.com>2010-10-27 14:21:09 +0100
commit063284837c8c366e5502b1b0264b8eb807b61732 (patch)
treefff3a1e1e5afaa671485b9d990704658276627ac /org/apache/commons/net/echo
Basic upload functionality to predifined location, with basic file browser
Diffstat (limited to 'org/apache/commons/net/echo')
-rw-r--r--org/apache/commons/net/echo/EchoTCPClient.java72
-rw-r--r--org/apache/commons/net/echo/EchoUDPClient.java101
2 files changed, 173 insertions, 0 deletions
diff --git a/org/apache/commons/net/echo/EchoTCPClient.java b/org/apache/commons/net/echo/EchoTCPClient.java
new file mode 100644
index 0000000..b4d43e2
--- /dev/null
+++ b/org/apache/commons/net/echo/EchoTCPClient.java
@@ -0,0 +1,72 @@
+/*
+ * 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.echo;
+
+import java.io.InputStream;
+
+import org.apache.commons.net.discard.DiscardTCPClient;
+
+/***
+ * The EchoTCPClient class is a TCP implementation of a client for the
+ * Echo protocol described in RFC 862. To use the class, merely
+ * establish a connection with
+ * {@link org.apache.commons.net.SocketClient#connect connect }
+ * and call {@link DiscardTCPClient#getOutputStream getOutputStream() } to
+ * retrieve the echo output stream and
+ * {@link #getInputStream getInputStream() }
+ * to get the echo input stream.
+ * Don't close either stream when you're done using them. Rather, call
+ * {@link org.apache.commons.net.SocketClient#disconnect disconnect }
+ * to clean up properly.
+ * <p>
+ * <p>
+ * @author Daniel F. Savarese
+ * @see EchoUDPClient
+ * @see DiscardTCPClient
+ ***/
+
+public final class EchoTCPClient extends DiscardTCPClient
+{
+ /*** The default echo port. It is set to 7 according to RFC 862. ***/
+ public static final int DEFAULT_PORT = 7;
+
+ /***
+ * The default EchoTCPClient constructor. It merely sets the default
+ * port to <code> DEFAULT_PORT </code>.
+ ***/
+ public EchoTCPClient ()
+ {
+ setDefaultPort(DEFAULT_PORT);
+ }
+
+ /***
+ * Returns an InputStream from which you may read echoed data from
+ * the server. You should NOT close the InputStream 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 InputStream from which you can read echoed data from the
+ * server.
+ ***/
+ public InputStream getInputStream()
+ {
+ return _input_;
+ }
+
+}
diff --git a/org/apache/commons/net/echo/EchoUDPClient.java b/org/apache/commons/net/echo/EchoUDPClient.java
new file mode 100644
index 0000000..70a4898
--- /dev/null
+++ b/org/apache/commons/net/echo/EchoUDPClient.java
@@ -0,0 +1,101 @@
+/*
+ * 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.echo;
+
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.InetAddress;
+
+import org.apache.commons.net.discard.DiscardUDPClient;
+
+/***
+ * The EchoUDPClient class is a UDP implementation of a client for the
+ * Echo protocol described in RFC 862. 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,
+ * then call {@link #receive receive } to receive echoes.
+ * After you're done echoing data, call
+ * {@link org.apache.commons.net.DatagramSocketClient#close close() }
+ * to clean up properly.
+ * <p>
+ * <p>
+ * @author Daniel F. Savarese
+ * @see EchoTCPClient
+ * @see DiscardUDPClient
+ ***/
+
+public final class EchoUDPClient extends DiscardUDPClient
+{
+ /*** The default echo port. It is set to 7 according to RFC 862. ***/
+ public static final int DEFAULT_PORT = 7;
+
+ private DatagramPacket __receivePacket = new DatagramPacket(new byte[0], 0);
+
+ /***
+ * Sends the specified data to the specified server at the default echo
+ * port.
+ * <p>
+ * @param data The echo 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.
+ * @exception IOException If an error occurs during the datagram send
+ * operation.
+ ***/
+ @Override
+ 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) </code> ***/
+ @Override
+ public void send(byte[] data, InetAddress host) throws IOException
+ {
+ send(data, data.length, host, DEFAULT_PORT);
+ }
+
+
+ /***
+ * Receives echoed data and returns its length. The data may be divided
+ * up among multiple datagrams, requiring multiple calls to receive.
+ * Also, the UDP packets will not necessarily arrive in the same order
+ * they were sent.
+ * <p>
+ * @return Length of actual data received.
+ * @exception IOException If an error occurs while receiving the data.
+ ***/
+ public int receive(byte[] data, int length) throws IOException
+ {
+ __receivePacket.setData(data);
+ __receivePacket.setLength(length);
+ _socket_.receive(__receivePacket);
+ return __receivePacket.getLength();
+ }
+
+ /*** Same as <code> receive(data, data.length)</code> ***/
+ public int receive(byte[] data) throws IOException
+ {
+ return receive(data, data.length);
+ }
+
+}
+