initial import

git-svn-id: http://manut.eu/svn/yalp/trunk@1 f059d3a0-6783-47b7-97ff-1fe0bbf25129

1 files changed, 147 insertions, 0 deletions

diff --git a/src/YalpOutputs/YalpVlcTelnetOutput/TelnetInterface.java b/src/YalpOutputs/YalpVlcTelnetOutput/TelnetInterface.java
new file mode 100644
index 0000000..c8441ac
--- /dev/null
+++ b/src/YalpOutputs/YalpVlcTelnetOutput/TelnetInterface.java
@@ -0,0 +1,147 @@
+/***********************************************************************
+ *
+ * Copyright (c) 2006 Manuel Traut and Volker Dahnke
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors: Manuel Traut and Volker Dahnke
+ *
+ ************************************************************************/
+
+package YalpOutputs.YalpVlcTelnetOutput;
+
+import java.net.Socket;
+import java.io.*;
+
+import org.apache.commons.net.telnet.*;
+
+/*******************************************************************************
+*
+* Class TelnetInterface
+*
+* <em>handels telnet connection</em>
+*
+* @author Volker Dahnke / Manuel Traut
+*
+* @version 0.1 20-11-2005<br>
+*
+* @see VlcStreamer
+*
+******************************************************************************/
+public class TelnetInterface {
+
+    private PrintStream out;
+    private InputStream in;
+    private TelnetClient tc = new TelnetClient();
+
+   /**
+    * creates socket, logs on
+    *
+    * @param host
+    *      hostname of telnetserver
+    * @param port
+    *       destination port
+    * @param pass
+    *       password
+    *
+    */
+
+    public TelnetInterface(String host, int port, String pass){
+    		try{
+        		this.tc.connect(host,port);
+        		this.out = new PrintStream(this.tc.getOutputStream());
+        		this.in = this.tc.getInputStream();
+        } catch(IOException e){
+            System.out.println("server.TelnetInterface.java: Telnet connection "+host+":"+port+" failed");
+            return;
+        }
+
+        readUntil( "Password:" );
+        write(pass);
+   	 	// Advance to a prompt
+   	 	readUntil("> ");
+    }
+
+    /**
+     * write to TelnetInterface
+     * @param value
+     * 		 String to write to Interface
+     */
+    public void write( String value ) {
+    	   try {
+    		 out.println( value );
+    		 out.flush();
+    		 System.out.println( value );
+    	   }
+    	   catch( Exception e ) {
+    		 e.printStackTrace();
+    	   }
+    }    
+    
+    /**
+     * reads output of telnet client
+     * @param pattern 
+     * 		for stop reading
+     * @return String
+     */
+    public String readUntil( String pattern ) {
+    	   try {
+    		 char lastChar = pattern.charAt( pattern.length() - 1 );
+    		 StringBuffer sb = new StringBuffer();
+    		 char ch = ( char )in.read();
+    		 while( true ) {
+    		  System.out.print( ch );
+    		  sb.append( ch );
+    		  if( ch == lastChar ) {
+    		    if( sb.toString().endsWith( pattern ) ) {
+    			 return sb.toString();
+    		    }
+    		  }
+    		  ch = ( char )in.read();
+    		 }
+    	   }
+    	   catch( Exception e ) {
+    		 e.printStackTrace();
+    	   }
+    	   return null;
+    	  }
+    
+   /**
+    *  executes command
+    *  @param cmd
+    *   any telnet command
+    *  @return String 
+    *  	telnet output caused by the command
+    *  		   null if failed
+    */
+    public String exec(String cmd){
+        
+    		try {
+    		 	write(cmd);
+    		 	return readUntil( "> " );
+    	   	}
+    	   	catch( Exception e ) {
+    		   	e.printStackTrace();
+    	   	}
+    	   	return null;
+    }
+    
+   /**
+    * close telnet connection     
+    * 
+    * @return boolean
+    *       true:  connection closed
+    *       false: connection close failed
+    */ 
+    
+    public boolean close(){
+        try {
+            this.tc.disconnect();
+        } catch(IOException e){
+            return false;
+        }
+        return true;
+    }
+}