From 063284837c8c366e5502b1b0264b8eb807b61732 Mon Sep 17 00:00:00 2001 From: Joe Robinson Date: Wed, 27 Oct 2010 14:21:09 +0100 Subject: Basic upload functionality to predifined location, with basic file browser --- org/apache/commons/net/echo/EchoTCPClient.java | 72 ++++++++++++++++++ org/apache/commons/net/echo/EchoUDPClient.java | 101 +++++++++++++++++++++++++ 2 files changed, 173 insertions(+) create mode 100644 org/apache/commons/net/echo/EchoTCPClient.java create mode 100644 org/apache/commons/net/echo/EchoUDPClient.java (limited to 'org/apache/commons/net/echo') 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. + *

+ *

+ * @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 DEFAULT_PORT . + ***/ + 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. + *

+ * @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. + *

+ *

+ * @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. + *

+ * @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 send(data, data.length, host) ***/ + @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. + *

+ * @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 receive(data, data.length) ***/ + public int receive(byte[] data) throws IOException + { + return receive(data, data.length); + } + +} + -- cgit v1.2.3