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The source code is released under:
MIT License
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/* The MIT License (MIT) //from w w w . j av a 2 s . c o m Copyright (c) 2012 Jerome Wagener Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.*/ package com.jeromewagener.soutils.android.demo; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStreamWriter; import java.net.InetAddress; import java.net.SocketException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.Locale; import android.app.Activity; import android.os.Bundle; import android.os.Environment; import android.util.Log; import android.view.Menu; import android.view.View; import android.widget.Button; import android.widget.TextView; import com.jeromewagener.soutils.beaconing.BeaconReceiver; import com.jeromewagener.soutils.beaconing.BeaconSender; import com.jeromewagener.soutils.beaconing.BeaconSenderAndReceiver; import com.jeromewagener.soutils.communication.Communication; import com.jeromewagener.soutils.communication.CommunicationManager; import com.jeromewagener.soutils.filetransfer.FileTransferClient; import com.jeromewagener.soutils.filetransfer.FileTransferServer; import com.jeromewagener.soutils.messaging.SoutilsMessage; import com.jeromewagener.soutils.messaging.SoutilsObserver; import com.jeromewagener.soutils.utilities.InetAddressUtilities; public class DemoActivity extends Activity implements SoutilsObserver { /** The communication manager is able to handle multiple incoming communications. This is the server TCP part. */ private static CommunicationManager communicationManager = null; /** The communication reflects a communication line to a communication manager. This is the client TCP part. */ private static Communication communication = null; /** The beacon sender broadcasts beacons (messages) using UDP packages */ private static BeaconSender beaconSender = null; /** The beacon receiver will listen for broadcasted beacons (messages) on the specified port */ private static BeaconReceiver beaconReceiver = null; /** The beacon sender and receive will send and receive UDP beacons (messages) while listening for other incoming packages */ private static BeaconSenderAndReceiver beaconSenderAndReceiver = null; /** The file transfer server which is able to offer files to a connected file transfer client */ private static FileTransferServer fileTransferServer = null; /** The file transfer client which is able to receive files from a connected file transfer server */ private static FileTransferClient fileTransferClient = null; @Override /** PLEASE NOTE: The following is bad practice! However, to illustrate the use of Soutils, all code resides within the onCreate. */ protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_demo_selection); TextView currentIPAddress = (TextView) findViewById(R.id.edtCurrentIPAddress); try { currentIPAddress.setText(InetAddressUtilities.getCurrentIPv4Address()); } catch (SocketException e) { Log.e("SOUTILS", "Cannot determine IP address"); } /** * Creating a socket server using the communication manager * -------------------------------------------------------- **/ Button startCommunicationManager = (Button) findViewById(R.id.btnStartCommunicationManager); startCommunicationManager.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { if (communicationManager == null) { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.disableEverything(DemoActivity.this); ActivityHelpers.adaptGUIForCommunicationManager(DemoActivity.this); // Retrieve the port from the edit box int port = Integer.valueOf(((TextView) findViewById(R.id.edtSoutilsPort)).getText().toString()); // Create the server communicationManager = new CommunicationManager(port, DemoActivity.this); communicationManager.start(); } else { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForCommunicationManager(DemoActivity.this); // Terminate the server communicationManager.done(); communicationManager = null; } } }); /** * Message all clients using the communication manager * --------------------------------------------------- **/ Button sendMessageToAllConnectedClients = (Button) findViewById(R.id.btnSendMessageToAllClients); sendMessageToAllConnectedClients.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { // Retrieve message from edit box String message = ((TextView) findViewById(R.id.edtMessageToBeSent)).getText().toString(); // Send message to all connected clients // PLEASE NOTE: You can also send a message to a particular client. // In this case use the sendMessage method which required the IP // address of the corresponding device! communicationManager.sendMessageToAllConnectedPeers(message); } }); /** * Creating a socket client using a communication * ---------------------------------------------- **/ Button startCommunication = (Button) findViewById(R.id.btnStartCommunication); startCommunication.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { String hostIPAddress = ((TextView) findViewById(R.id.edtHostIPAddress)).getText().toString(); int port = Integer.valueOf(((TextView) findViewById(R.id.edtSoutilsPort)).getText().toString()); if (communication == null) { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.disableEverything(DemoActivity.this); ActivityHelpers.adaptGUIForCommunication(DemoActivity.this); // Create the client communication = new Communication(hostIPAddress, port, DemoActivity.this); communication.start(); } else { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForCommunication(DemoActivity.this); // Terminate the client communication.done(); communication = null; } } }); /** * Send a message to the communication manager * ------------------------------------------- **/ Button sendMessageToServer = (Button) findViewById(R.id.btnSendMessageToServer); sendMessageToServer.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { // Retrieve message from edit box String message = ((TextView) findViewById(R.id.edtMessageToBeSent)).getText().toString(); // Send message to the communication manager (server) communication.sendMessage(message); } }); /** * Start broadcasting UDP beacons / messages * ----------------------------------------- **/ Button startBeaconSender = (Button) findViewById(R.id.btnStartBeaconSender); startBeaconSender.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { if (beaconSender == null) { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.disableEverything(DemoActivity.this); ActivityHelpers.adaptGUIForBeaconSender(DemoActivity.this); // Retrieve beacon message from edit box String beaconMessage = ((TextView) findViewById(R.id.edtMessageToBeSent)).getText().toString(); try { // Retrieve broadcast address (for the demo we will use the first broadcast address available) InetAddress broadcastAddress = InetAddressUtilities.getAllIPsAndAssignedBroadcastAddresses().values().iterator().next(); // Retrieve the port from the edit box int port = Integer.valueOf(((TextView) findViewById(R.id.edtSoutilsPort)).getText().toString()); // Create the beacon sender beaconSender = new BeaconSender(beaconMessage, broadcastAddress, port, DemoActivity.this); beaconSender.start(); } catch (SocketException socketException) { Log.e("SOUTILS", "Could not determine broadcast address", socketException); } } else { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForBeaconSender(DemoActivity.this); // Terminate the beacon sender beaconSender.done(); beaconSender = null; } } }); /** * Start listening for UDP beacons / messages * ------------------------------------------ **/ Button startBeaconReceiver = (Button) findViewById(R.id.btnStartBeaconReceiver); startBeaconReceiver.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { if (beaconReceiver == null) { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.disableEverything(DemoActivity.this); ActivityHelpers.adaptGUIForBeaconReceiver(DemoActivity.this); // Retrieve the port from the edit box int port = Integer.valueOf(((TextView) findViewById(R.id.edtSoutilsPort)).getText().toString()); // Start listening beaconReceiver = new BeaconReceiver(port, DemoActivity.this); beaconReceiver.start(); } else { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForBeaconReceiver(DemoActivity.this); // Terminate listening beaconReceiver.done(); beaconReceiver = null; } } }); /** * Start broadcasting and receiving UDP beacons / messages simultaneously * ----------------------------------------------------------------------- **/ Button startBeaconSenderReceiver = (Button) findViewById(R.id.btnStartBeaconSenderReceiver); startBeaconSenderReceiver.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { if (beaconSenderAndReceiver == null) { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.disableEverything(DemoActivity.this); ActivityHelpers.adaptGUIForBeaconSenderReceiver(DemoActivity.this); // Retrieve beacon message from edit box String message = ((TextView) findViewById(R.id.edtMessageToBeSent)).getText().toString(); try { // Retrieve broadcast address (for the demo we will use the first broadcast address available) InetAddress broadcastAddress = InetAddressUtilities.getAllIPsAndAssignedBroadcastAddresses().values().iterator().next(); // Start broadcasting and listening at the same time beaconSenderAndReceiver = new BeaconSenderAndReceiver(message, broadcastAddress, 4242, DemoActivity.this); beaconSenderAndReceiver.start(); } catch (SocketException e) { Log.e("SOUTILS", "Couldn't determine broadcast address"); } } else { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForBeaconSenderReceiver(DemoActivity.this); // Terminate simultaneously broadcasting and listening UDP beacons beaconSenderAndReceiver.done(); beaconSenderAndReceiver = null; } } }); /** * Starting a file transfer server to offer a file to a connected file transfer client * ----------------------------------------------------------------------- **/ Button startFileTransferServer = (Button) findViewById(R.id.btnSendFile); startFileTransferServer.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { if (fileTransferServer == null) { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.disableEverything(DemoActivity.this); ActivityHelpers.adaptGUIForSendingFile(DemoActivity.this); // Generating dummy file on external storage (you can use any type of file) File autoGeneratedTextFile = generateTextFileForTransfer(); // Retrieve the port from the edit box int port = Integer.valueOf(((TextView) findViewById(R.id.edtSoutilsPort)).getText().toString()); // Start offering the file FileTransferServer fileTransferServer = new FileTransferServer(autoGeneratedTextFile.getAbsolutePath(), port, DemoActivity.this); fileTransferServer.start(); // Wait for upload to finish. This will block the UI! // This busy waiting is not very pretty! Please check the documentation for better alternatives while (!fileTransferServer.isDone()) { try { Thread.sleep(500); } catch (InterruptedException ie) { ie.printStackTrace(); } } // Show small info message and adapt GUI - Not important with respect to Soutils TextView edtReceivedMessagesAndBeacons = ((TextView) findViewById(R.id.edtReceivedMessagesAndBeacons)); edtReceivedMessagesAndBeacons.setText("File successfully uploaded\n" + edtReceivedMessagesAndBeacons.getText().toString()); ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForSendingFile(DemoActivity.this); fileTransferServer = null; } else { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForSendingFile(DemoActivity.this); // Terminate the file transfer server if (!fileTransferServer.isDone()) { fileTransferServer.done(); } fileTransferServer = null; } } }); /** * Starting a file transfer client to download a file from a connected file transfer server * ----------------------------------------------------------------------- **/ Button startFileTransferClient = (Button) findViewById(R.id.btnReceiveFile); startFileTransferClient.setOnClickListener(new Button.OnClickListener() { public void onClick(View v) { if (fileTransferClient == null) { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.disableEverything(DemoActivity.this); ActivityHelpers.adaptGUIForReceivingFile(DemoActivity.this); // Get server address String hostIPAddress = ((TextView) findViewById(R.id.edtHostIPAddress)).getText().toString(); // Retrieve the port from the edit box int port = Integer.valueOf(((TextView) findViewById(R.id.edtSoutilsPort)).getText().toString()); // Start downloading the file fileTransferClient = new FileTransferClient(Environment.getExternalStorageDirectory() + "/soutils.txt", hostIPAddress, port, DemoActivity.this); fileTransferClient.start(); // Wait for upload to finish. This will block the UI! // This busy waiting is not very pretty! Please check the documentation for better alternatives while (!fileTransferClient.isDone()) { try { Thread.sleep(500); } catch (InterruptedException ie) { ie.printStackTrace(); } } // Show small info message and adapt GUI - Not important with respect to Soutils TextView edtReceivedMessagesAndBeacons = ((TextView) findViewById(R.id.edtReceivedMessagesAndBeacons)); edtReceivedMessagesAndBeacons.setText("File successfully downloaded to external storage\n" + edtReceivedMessagesAndBeacons.getText().toString()); ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForReceivingFile(DemoActivity.this); fileTransferClient = null; } else { // Adapt GUI - Not important with respect to Soutils ActivityHelpers.enableEverything(DemoActivity.this); ActivityHelpers.resetGUIForReceivingFile(DemoActivity.this); // Terminate the file transfer client if (!fileTransferClient.isDone()) { fileTransferClient.done(); } fileTransferClient = null; } } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.demo_selection, menu); return true; } public File generateTextFileForTransfer() { File file = new File(Environment.getExternalStorageDirectory() + "/soutilsAndroid.txt"); Calendar cal = Calendar.getInstance(); String format = String.valueOf(cal.get(Calendar.YEAR)) + "/" + String.valueOf(cal.get(Calendar.MONTH)) + "/" + String.valueOf(cal.get(Calendar.DAY_OF_MONTH)) + " " + String.valueOf(cal.get(Calendar.HOUR_OF_DAY)) + ":" + String.valueOf(cal.get(Calendar.MINUTE)); try { FileOutputStream os = new FileOutputStream(file, false); OutputStreamWriter out = new OutputStreamWriter(os); out.write(android.os.Build.MANUFACTURER + "\n" + android.os.Build.MODEL + "\n" + format); out.close(); } catch (IOException ioe) { ioe.printStackTrace(); } return file; } private static final SimpleDateFormat timeFormatter = new SimpleDateFormat("HH:mm:ss", Locale.ENGLISH); @Override public void handleSoutilsMessage(final SoutilsMessage soutilsMessage) { runOnUiThread(new Runnable(){ @Override public void run() { TextView edtReceivedMessagesAndBeacons = ((TextView) DemoActivity.this.findViewById(R.id.edtReceivedMessagesAndBeacons)); edtReceivedMessagesAndBeacons.setText( timeFormatter.format(new Date()) + ": " + soutilsMessage.getMessageType() + " : " + soutilsMessage.getContent() + " (" + soutilsMessage.getSenderAddress() + ")\n" + edtReceivedMessagesAndBeacons.getText().toString()); } }); } }