server/filter/TCPReaderInit.java

//---PACKAGE DECLARATION---
package uk.ac.ukc.iscream.filter;

//---IMPORTS---
import uk.ac.ukc.iscream.core.*;
import uk.ac.ukc.iscream.filter.*;
import java.net.Socket;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import java.io.*;
import org.omg.CORBA.*;
import org.omg.CosNaming.*;
import uk.ac.ukc.iscream.util.*;

/**
 * <ONE LINE DESCRIPTION>
 * <DETAILED DESCRIPTION>
 *
 * @author  $Author: tdb1 $
 * @version $Id: TCPReaderInit.java,v 1.8 2000/11/30 02:00:55 tdb1 Exp $
 */
class TCPReaderInit extends Thread {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public final String REVISION = "$Revision: 1.8 $";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

    public TCPReaderInit(Socket socket, Filter parent) throws IOException {
        _socket = socket;
        _parent = parent;
        _socketIn = new BufferedReader(new InputStreamReader(_socket.getInputStream()));
        _socketOut = new PrintWriter(_socket.getOutputStream());
        _logger.write(toString(), Logger.SYSINIT, "created");
    }
    
//---PUBLIC METHODS---

    public void run() {
        try {
            //variables
            String filelist = "";
            String lastModified = "";
            String inBound = "";
            
            inBound = _socketIn.readLine();
            if(!inBound.equals("HEARTBEAT")) {
                _socketOut.println("ERROR");
                _socketOut.flush();
                throw new IOException("protocol error - expecting:HEARTBEAT got:" + inBound);
            } else {
                _socketOut.println("OK");
                _socketOut.flush();
            }
            
            inBound = _socketIn.readLine();
            if(!inBound.equals("CONFIG")) {
                _socketOut.println("ERROR");
                _socketOut.flush();
                throw new IOException("protocol error - expecting:CONFIG got:" + inBound);
            } else {
                _socketOut.println("OK");
                _socketOut.flush();
            }
            
            inBound = _socketIn.readLine();
            filelist = inBound;
            _socketOut.println("OK");
            _socketOut.flush();
            
            inBound = _socketIn.readLine();
            lastModified = inBound;
            
            boolean newConfig = _configManager.isModified(filelist, Long.parseLong(lastModified));
            
            if(newConfig) {
                _socketOut.println("ERROR");
            }
            else {
                _socketOut.println("OK");
            }
            _socketOut.flush();
            
            inBound = _socketIn.readLine();
            if(!inBound.equals("ENDHEARTBEAT")) {
                _socketOut.println("ERROR");
                _socketOut.flush();
                throw new IOException("protocol error - expecting:ENDHEARTBEAT got:" + inBound);
            } else {
                _socketOut.println("OK");
                _socketOut.flush();
            }

            String date = new Long(System.currentTimeMillis()).toString();
            String hostname = _socket.getInetAddress().getHostName();
            String ipadd = _socket.getInetAddress().getHostAddress();
            String xml = "<packet type=\"heartbeat\" machine_name=\""+hostname+"\" date=\""+date+"\" ip=\""+ipadd+"\"></packet>";
            
            FilterThread t = new FilterThread(xml, _parent);
            t.start();
            
        } catch (Exception e) {
            _logger.write(toString(), Logger.ERROR, "ERROR: " + e.getMessage());
        }
        
        _socketOut.flush();
        // Disconnect streams & socket
        try {
            _socketIn.close();
            _socketOut.close();
            _socket.close();
        } catch (IOException e) {
            _logger.write(toString(), Logger.ERROR, "exception on socket close");
        }
        _logger.write(toString(), Logger.SYSMSG, "finished");
    }
    
    /**
     * Overrides the {@link java.lang.Object#toString() Object.toString()}
     * method to provide clean logging (every class should have this).
     *
     * @return the name of this class and its CVS revision
     */
    public String toString() {
        return this.getClass().getName() + "{" + _socket.getInetAddress().getHostName() 
         + "}(" + REVISION.substring(11, REVISION.length() - 2) + ")";
        
    }

//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---

//---ATTRIBUTES---

    ConfigurationManager _configManager = ReferenceManager.getInstance().getCM();
    Logger _logger = ReferenceManager.getInstance().getLogger();
    Socket _socket;
    BufferedReader _socketIn;
    PrintWriter _socketOut;
    Filter _parent;
//---STATIC ATTRIBUTES---

}
Revision:	1.9
Committed:	Thu Nov 30 02:38:09 2000 UTC (23 years, 5 months ago) by ajm
Branch:	MAIN
Branch point for:	SERVER_PACKAGEBUILD
Changes since 1.8:	+4 -4 lines
Log Message:	Changed package structure uk.ac.ukc.iscream.refman and xml -> uk.ac.ukc.iscream.util
#	User	Rev	Content
1	tdb	1.1	//---PACKAGE DECLARATION---
2	tdb	1.5	package uk.ac.ukc.iscream.filter;
3	tdb	1.1
4			//---IMPORTS---
5			import uk.ac.ukc.iscream.core.*;
6			import uk.ac.ukc.iscream.filter.*;
7			import java.net.Socket;
8			import java.io.InputStream;
9			import java.io.OutputStream;
10			import java.io.IOException;
11			import java.io.*;
12			import org.omg.CORBA.*;
13			import org.omg.CosNaming.*;
14	ajm	1.9	import uk.ac.ukc.iscream.util.*;
15	tdb	1.1
16			/**
17			* <ONE LINE DESCRIPTION>
18			* <DETAILED DESCRIPTION>
19			*
20	ajm	1.9	* @author $Author: tdb1 $
21			* @version $Id: TCPReaderInit.java,v 1.8 2000/11/30 02:00:55 tdb1 Exp $
22	tdb	1.1	*/
23			class TCPReaderInit extends Thread {
24
25			//---FINAL ATTRIBUTES---
26
27			/**
28			* The current CVS revision of this class
29			*/
30	ajm	1.9	public final String REVISION = "$Revision: 1.8 $";
31	tdb	1.1
32			//---STATIC METHODS---
33
34			//---CONSTRUCTORS---
35
36	tdb	1.8	public TCPReaderInit(Socket socket, Filter parent) throws IOException {
37	tdb	1.1	_socket = socket;
38			_parent = parent;
39			_socketIn = new BufferedReader(new InputStreamReader(_socket.getInputStream()));
40			_socketOut = new PrintWriter(_socket.getOutputStream());
41	tdb	1.8	_logger.write(toString(), Logger.SYSINIT, "created");
42	tdb	1.1	}
43
44			//---PUBLIC METHODS---
45
46			public void run() {
47			try {
48	tdb	1.3	//variables
49			String filelist = "";
50			String lastModified = "";
51			String inBound = "";
52	tdb	1.2
53	tdb	1.3	inBound = _socketIn.readLine();
54			if(!inBound.equals("HEARTBEAT")) {
55			_socketOut.println("ERROR");
56			_socketOut.flush();
57			throw new IOException("protocol error - expecting:HEARTBEAT got:" + inBound);
58			} else {
59			_socketOut.println("OK");
60			_socketOut.flush();
61			}
62
63			inBound = _socketIn.readLine();
64			if(!inBound.equals("CONFIG")) {
65			_socketOut.println("ERROR");
66			_socketOut.flush();
67			throw new IOException("protocol error - expecting:CONFIG got:" + inBound);
68			} else {
69			_socketOut.println("OK");
70			_socketOut.flush();
71			}
72
73			inBound = _socketIn.readLine();
74			filelist = inBound;
75			_socketOut.println("OK");
76			_socketOut.flush();
77
78			inBound = _socketIn.readLine();
79			lastModified = inBound;
80
81			boolean newConfig = _configManager.isModified(filelist, Long.parseLong(lastModified));
82
83			if(newConfig) {
84			_socketOut.println("ERROR");
85			}
86			else {
87			_socketOut.println("OK");
88			}
89			_socketOut.flush();
90
91			inBound = _socketIn.readLine();
92			if(!inBound.equals("ENDHEARTBEAT")) {
93			_socketOut.println("ERROR");
94			_socketOut.flush();
95			throw new IOException("protocol error - expecting:ENDHEARTBEAT got:" + inBound);
96			} else {
97			_socketOut.println("OK");
98			_socketOut.flush();
99			}
100	tdb	1.4
101	tdb	1.6	String date = new Long(System.currentTimeMillis()).toString();
102			String hostname = _socket.getInetAddress().getHostName();
103			String ipadd = _socket.getInetAddress().getHostAddress();
104			String xml = "<packet type=\"heartbeat\" machine_name=\""+hostname+"\" date=\""+date+"\" ip=\""+ipadd+"\"></packet>";
105
106	tdb	1.8	FilterThread t = new FilterThread(xml, _parent);
107	tdb	1.6	t.start();
108	tdb	1.1
109			} catch (Exception e) {
110	tdb	1.8	_logger.write(toString(), Logger.ERROR, "ERROR: " + e.getMessage());
111	tdb	1.1	}
112
113			_socketOut.flush();
114			// Disconnect streams & socket
115			try {
116			_socketIn.close();
117			_socketOut.close();
118			_socket.close();
119			} catch (IOException e) {
120	tdb	1.8	_logger.write(toString(), Logger.ERROR, "exception on socket close");
121	tdb	1.1	}
122	tdb	1.8	_logger.write(toString(), Logger.SYSMSG, "finished");
123	tdb	1.1	}
124
125			/**
126			* Overrides the {@link java.lang.Object#toString() Object.toString()}
127			* method to provide clean logging (every class should have this).
128			*
129			* @return the name of this class and its CVS revision
130			*/
131			public String toString() {
132			return this.getClass().getName() + "{" + _socket.getInetAddress().getHostName()
133			+ "}(" + REVISION.substring(11, REVISION.length() - 2) + ")";
134
135			}
136
137			//---PRIVATE METHODS---
138
139			//---ACCESSOR/MUTATOR METHODS---
140
141			//---ATTRIBUTES---
142
143	tdb	1.8	ConfigurationManager _configManager = ReferenceManager.getInstance().getCM();
144			Logger _logger = ReferenceManager.getInstance().getLogger();
145	tdb	1.1	Socket _socket;
146			BufferedReader _socketIn;
147			PrintWriter _socketOut;
148			Filter _parent;
149			//---STATIC ATTRIBUTES---
150
151			}