org.matalon.pagerankhits.servlet
Class GetRoutineServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.matalon.pagerankhits.servlet.AbstractServlet
              org.matalon.pagerankhits.servlet.GetRoutineServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class GetRoutineServlet

extends AbstractServlet

This servlet is responsible for returning the relevant MATLAB routine, according to the given request parameters.

Author:

Yonatan Matalon

See Also:

Serialized Form

Field Summary

static java.lang.String	HITS_MATRIX_ROUTINE_FILE_NAME
static java.lang.String	HITS_MODIFIED_MATRIX_FILE_NAME
static java.lang.String	HITS_MODIFIED_ROUTINE_FILE_NAME
static java.lang.String	HITS_ROUTINE_FILE_NAME
static java.lang.String	PAGERANK_ROUTINE_FILE_NAME
static java.lang.String	REQ_PARAM_COLS_START
static java.lang.String	REQ_PARAM_ROUTINE_FILE_NAME
static java.lang.String	REQ_PARAM_ROWS_START
static java.lang.String	SEPARATOR_CONTENT1
static java.lang.String	SEPARATOR_CONTENT2
static java.lang.String	SEPARATOR_END_HITS_VECTOR
static java.lang.String	SEPARATOR_END_MODIFIED_HITS_VECTOR
static java.lang.String	SEPARATOR_END_PAGERANK_VECTOR
static java.lang.String	SEPARATOR_START_HITS_VECTOR
static java.lang.String	SEPARATOR_START_MODIFIED_HITS_VECTOR
static java.lang.String	SEPARATOR_START_PAGERANK_VECTOR
private static long	serialVersionUID

Fields inherited from class org.matalon.pagerankhits.servlet.AbstractServlet

PARAM_NAME_STATUS, PARAM_VALUE_STATUS_ERROR, PARAM_VALUE_STATUS_IDLE, PARAM_VALUE_STATUS_RUNNING, PARAM_VALUE_STATUS_SUCCESS, RECENTLY_MODIFIED_INTERVAL

Fields inherited from class javax.servlet.http.HttpServlet

Fields inherited from class javax.servlet.GenericServlet

Constructor Summary

GetRoutineServlet()

Method Summary

private java.util.Vector	getUrls(Graph webGraph, boolean addVirtualNode)
protected void	service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
private void	writeHitsMatrixRoutine(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, boolean modified) Writes the requested HITS matrix routine to the OutputStream of the given response.
private void	writeHitsRoutine(javax.servlet.http.HttpServletResponse response, boolean modified) Writes the requested Kleinberg's HITS routine to the PrintWriter of the given response.
private void	writePageRankRoutine(javax.servlet.http.HttpServletResponse response) Writes the requested PageRank routine to the PrintWriterof the given response.

Methods inherited from class org.matalon.pagerankhits.servlet.AbstractServlet

printErrorMessage, printStandByMessage

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

REQ_PARAM_ROUTINE_FILE_NAME

public static final java.lang.String REQ_PARAM_ROUTINE_FILE_NAME

See Also:

Constant Field Values

PAGERANK_ROUTINE_FILE_NAME

public static final java.lang.String PAGERANK_ROUTINE_FILE_NAME

See Also:

Constant Field Values

HITS_ROUTINE_FILE_NAME

public static final java.lang.String HITS_ROUTINE_FILE_NAME

See Also:

Constant Field Values

HITS_MODIFIED_ROUTINE_FILE_NAME

public static final java.lang.String HITS_MODIFIED_ROUTINE_FILE_NAME

See Also:

Constant Field Values

HITS_MATRIX_ROUTINE_FILE_NAME

public static final java.lang.String HITS_MATRIX_ROUTINE_FILE_NAME

See Also:

Constant Field Values

HITS_MODIFIED_MATRIX_FILE_NAME

public static final java.lang.String HITS_MODIFIED_MATRIX_FILE_NAME

See Also:

Constant Field Values

REQ_PARAM_ROWS_START

public static final java.lang.String REQ_PARAM_ROWS_START

See Also:

Constant Field Values

REQ_PARAM_COLS_START

public static final java.lang.String REQ_PARAM_COLS_START

See Also:

Constant Field Values

SEPARATOR_START_PAGERANK_VECTOR

public static final java.lang.String SEPARATOR_START_PAGERANK_VECTOR

See Also:

Constant Field Values

SEPARATOR_END_PAGERANK_VECTOR

public static final java.lang.String SEPARATOR_END_PAGERANK_VECTOR

See Also:

Constant Field Values

SEPARATOR_START_HITS_VECTOR

public static final java.lang.String SEPARATOR_START_HITS_VECTOR

See Also:

Constant Field Values

SEPARATOR_END_HITS_VECTOR

public static final java.lang.String SEPARATOR_END_HITS_VECTOR

See Also:

Constant Field Values

SEPARATOR_START_MODIFIED_HITS_VECTOR

public static final java.lang.String SEPARATOR_START_MODIFIED_HITS_VECTOR

See Also:

Constant Field Values

SEPARATOR_END_MODIFIED_HITS_VECTOR

public static final java.lang.String SEPARATOR_END_MODIFIED_HITS_VECTOR

See Also:

Constant Field Values

SEPARATOR_CONTENT1

public static final java.lang.String SEPARATOR_CONTENT1

See Also:

Constant Field Values

SEPARATOR_CONTENT2

public static final java.lang.String SEPARATOR_CONTENT2

See Also:

Constant Field Values

Constructor Detail

GetRoutineServlet

public GetRoutineServlet()

Method Detail

service

protected void service(javax.servlet.http.HttpServletRequest request,
                       javax.servlet.http.HttpServletResponse response)
                throws javax.servlet.ServletException,
                       java.io.IOException

Throws:

javax.servlet.ServletException

java.io.IOException

See Also:

HttpServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)

writePageRankRoutine

private void writePageRankRoutine(javax.servlet.http.HttpServletResponse response)

Writes the requested PageRank routine to the PrintWriterof the given response.

Parameters:

response -

writeHitsRoutine

private void writeHitsRoutine(javax.servlet.http.HttpServletResponse response,
                              boolean modified)

Writes the requested Kleinberg's HITS routine to the PrintWriter of the given response. If modified is true then our modified version to Kleinberg's HITS algorithm shall be written, otherwise the original version shall be written.

Parameters:

response -

modified -

writeHitsMatrixRoutine

private void writeHitsMatrixRoutine(javax.servlet.http.HttpServletRequest request,
                                    javax.servlet.http.HttpServletResponse response,
                                    boolean modified)

Writes the requested HITS matrix routine to the OutputStream of the given response. If the value of modified is true then the _modified_ matrix will be written, otherwise the _original_ matrix will be written.

Parameters:

request -

response -

modified -

getUrls

private java.util.Vector getUrls(Graph webGraph,
                                 boolean addVirtualNode)

Parameters:

webGraph -

addVirtualNode -

Returns:

Returns all Graph's URLs, sorted by the order they were visited by the crawler. If addVirtualNode is true, then the returned URLs list shall include an additional virtual URL.