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java.lang.Object org.apache.james.ai.classic.BayesianAnalyzer org.apache.james.ai.classic.JDBCBayesianAnalyzer
public class JDBCBayesianAnalyzer
Manages the persistence of the spam bayesian analysis corpus using a JDBC database.
This class is abstract to allow implementations to take advantage of different logging capabilities/interfaces in different parts of the code.
Field Summary | |
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static String |
DATABASE_LOCK
Public object representing a lock on database activity. |
Constructor Summary | |
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JDBCBayesianAnalyzer()
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JDBCBayesianAnalyzer(Log log)
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Method Summary | |
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static long |
getLastDatabaseUpdateTime()
Getter for static lastDatabaseUpdateTime. |
Log |
getLog()
Gets the current log. |
String |
getSqlFileName()
Getter for property sqlFileName. |
Map<String,String> |
getSqlParameters()
Getter for property sqlParameters. |
void |
initSqlQueries(Connection conn,
Document sqlConfiguration)
Initializes the sql query environment from the SqlResources file. |
void |
loadHamNSpam(Connection conn)
Loads the token frequencies from the database. |
void |
log(String errorString)
Logs errors. |
void |
log(String errorString,
Throwable t)
Logs errors. |
void |
resetData(Connection conn)
Reset all trained data |
void |
setLog(Log log)
Sets the current log. |
void |
setSqlFileName(String sqlFileName)
Setter for property sqlFileName. |
void |
setSqlParameters(Map<String,String> sqlParameters)
Setter for property sqlParameters. |
static void |
touchLastDatabaseUpdateTime()
Sets static lastDatabaseUpdateTime to System.currentTimeMillis(). |
void |
updateHamTokens(Connection conn)
Updates the database with new "ham" token frequencies. |
void |
updateSpamTokens(Connection conn)
Updates the database with new "spam" token frequencies. |
Methods inherited from class org.apache.james.ai.classic.BayesianAnalyzer |
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addHam, addSpam, buildCorpus, clear, computeSpamProbability, getCorpus, getHamMessageCount, getHamTokenCounts, getSpamMessageCount, getSpamTokenCounts, setCorpus, setHamMessageCount, setHamTokenCounts, setSpamMessageCount, setSpamTokenCounts, tokenCountsClear |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final String DATABASE_LOCK
Constructor Detail |
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public JDBCBayesianAnalyzer()
public JDBCBayesianAnalyzer(Log log)
Method Detail |
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public static long getLastDatabaseUpdateTime()
public static void touchLastDatabaseUpdateTime()
public Log getLog()
public void setLog(Log log)
log
- not nullpublic String getSqlFileName()
public void setSqlFileName(String sqlFileName)
sqlFileName
- New value of property sqlFileName.public Map<String,String> getSqlParameters()
public void setSqlParameters(Map<String,String> sqlParameters)
sqlParameters
- New value of property sqlParameters.public void loadHamNSpam(Connection conn) throws SQLException
conn
- The connection for accessing the database
SQLException
- If a database error occurspublic void updateHamTokens(Connection conn) throws SQLException
conn
- The connection for accessing the database
SQLException
- If a database error occurspublic void updateSpamTokens(Connection conn) throws SQLException
conn
- The connection for accessing the database
SQLException
- If a database error occurspublic void resetData(Connection conn) throws SQLException
conn
- The connection for accessing the database
SQLException
- If a database error occourspublic void initSqlQueries(Connection conn, Document sqlConfiguration) throws Exception
conn
- The connection for accessing the databasesqlConfiguration
- The sqlResources configuration document
Exception
- If any error occurspublic void log(String errorString)
log
in interface Log
errorString
- the error message generatedpublic void log(String errorString, Throwable t)
log
in interface Log
errorString
- the error message generatedt
- exception
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