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// Portions Copyright [2016-2018] [Payara Foundation and/or its affiliates]
package com.sun.gjc.monitoring;
import com.sun.gjc.util.SQLTrace;
import fish.payara.jdbc.stats.FrequentSQLTraceCache;
import fish.payara.jdbc.stats.SlowSqlTrace;
import fish.payara.jdbc.stats.SlowSqlTraceCache;
import java.util.List;
import org.glassfish.external.probe.provider.annotations.ProbeListener;
import org.glassfish.external.probe.provider.annotations.ProbeParam;
import org.glassfish.external.statistics.CountStatistic;
import org.glassfish.external.statistics.impl.CountStatisticImpl;
import org.glassfish.external.statistics.ListStatistic;
import org.glassfish.external.statistics.impl.ListStatisticImpl;
import org.glassfish.external.statistics.impl.StatisticImpl;
import org.glassfish.gmbal.AMXMetadata;
import org.glassfish.gmbal.Description;
import org.glassfish.gmbal.ManagedAttribute;
import org.glassfish.gmbal.ManagedObject;
import org.glassfish.resourcebase.resources.api.PoolInfo;
/**
* Provides the monitoring data for JDBC RA module
*
* @author Shalini M
*/
@AMXMetadata(type="jdbcra-mon", group="monitoring")
@ManagedObject
@Description("JDBC RA Statistics")
public class JdbcStatsProvider {
private ListStatisticImpl freqUsedSqlQueries = new ListStatisticImpl(
"FreqUsedSqlQueries", "List",
"Most frequently used sql queries");
private ListStatisticImpl slowSqlQueries = new ListStatisticImpl("SlowSqlQueries", "List", "Slowest SQL Queries");
private CountStatisticImpl numStatementCacheHit = new CountStatisticImpl(
"NumStatementCacheHit", StatisticImpl.UNIT_COUNT,
"The total number of Statement Cache hits.");
private CountStatisticImpl numStatementCacheMiss = new CountStatisticImpl(
"NumStatementCacheMiss", StatisticImpl.UNIT_COUNT,
"The total number of Statement Cache misses.");
private CountStatisticImpl numPotentialStatementLeak = new CountStatisticImpl(
"NumPotentialStatementLeak", StatisticImpl.UNIT_COUNT,
"The total number of potential Statement leaks");
private PoolInfo poolInfo;
private FrequentSQLTraceCache freqSqlTraceCache;
private SlowSqlTraceCache slowSqlTraceCache;
public JdbcStatsProvider(String poolName, String appName, String moduleName, int sqlTraceCacheSize,
long timeToKeepQueries) {
poolInfo = new PoolInfo(poolName, appName, moduleName);
if(sqlTraceCacheSize > 0) {
this.freqSqlTraceCache = new FrequentSQLTraceCache(poolName, sqlTraceCacheSize, timeToKeepQueries);
this.slowSqlTraceCache = new SlowSqlTraceCache(poolName, sqlTraceCacheSize, timeToKeepQueries);
}
}
public JdbcStatsProvider(String poolName, String appName, String moduleName, int sqlTraceCacheSize,
long timeToKeepQueries, int maxStoredEntries) {
poolInfo = new PoolInfo(poolName, appName, moduleName);
if(sqlTraceCacheSize > 0) {
this.freqSqlTraceCache = new FrequentSQLTraceCache(poolName, sqlTraceCacheSize, timeToKeepQueries, maxStoredEntries);
this.slowSqlTraceCache = new SlowSqlTraceCache(poolName, sqlTraceCacheSize, timeToKeepQueries);
}
}
/**
* Whenever statement cache is hit, increment numStatementCacheHit count.
* @param poolName JdbcConnectionPool that has got a statement cache hit event.
*/
@ProbeListener(JdbcRAConstants.STATEMENT_CACHE_DOTTED_NAME + JdbcRAConstants.STATEMENT_CACHE_HIT)
public void statementCacheHitEvent(@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName
) {
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if(this.poolInfo.equals(poolInfo)){
numStatementCacheHit.increment();
}
}
/**
* Whenever statement cache miss happens, increment numStatementCacheMiss count.
* @param poolName JdbcConnectionPool that has got a statement cache miss event.
*/
@ProbeListener(JdbcRAConstants.STATEMENT_CACHE_DOTTED_NAME + JdbcRAConstants.STATEMENT_CACHE_MISS)
public void statementCacheMissEvent(@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName
) {
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if(this.poolInfo.equals(poolInfo)){
numStatementCacheMiss.increment();
}
}
/**
* Whenever a sql statement that is traced is to be cache for monitoring
* purpose, the SQLTrace object is created for the specified sql and
* updated in the SQLTraceCache. This is used to update the
* frequently used and slowest sql queries.
*
* @param poolName
* @param appName
* @param sql
* @param moduleName
* @param executionTime
*/
@ProbeListener(JdbcRAConstants.SQL_TRACING_DOTTED_NAME + JdbcRAConstants.TRACE_SQL)
public void traceSQLEvent(
@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName,
@ProbeParam("sql") String sql,
@ProbeParam("executionTime") long executionTime) {
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if(this.poolInfo.equals(poolInfo)){
if(freqSqlTraceCache != null) {
if (sql != null) {
SQLTrace cacheObj = new SQLTrace(sql, 1, System.currentTimeMillis());
freqSqlTraceCache.checkAndUpdateCache(cacheObj);
}
}
// If the slowSqlTraceCache has been initialised, create a new SlowSqlTrace object and add it to or update
// the cache
if (slowSqlTraceCache != null && sql != null) {
SQLTrace cacheObj = new SlowSqlTrace(sql, 1, System.currentTimeMillis(), executionTime);
slowSqlTraceCache.checkAndUpdateCache(cacheObj);
}
}
}
/**
* Whenever statement leak happens, increment numPotentialStatementLeak count.
* @param poolName JdbcConnectionPool that has got a statement leak event.
*/
@ProbeListener(JdbcRAConstants.STATEMENT_LEAK_DOTTED_NAME + JdbcRAConstants.POTENTIAL_STATEMENT_LEAK)
public void potentialStatementLeakEvent(
@ProbeParam("poolName") String poolName,
@ProbeParam("appName") String appName,
@ProbeParam("moduleName") String moduleName) {
PoolInfo poolInfo = new PoolInfo(poolName, appName, moduleName);
if(this.poolInfo.equals(poolInfo)){
numPotentialStatementLeak.increment();
}
}
@ManagedAttribute(id="numstatementcachehit")
public CountStatistic getNumStatementCacheHit() {
return numStatementCacheHit;
}
@ManagedAttribute(id="numstatementcachemiss")
public CountStatistic getNumStatementCacheMiss() {
return numStatementCacheMiss;
}
@ManagedAttribute(id="frequsedsqlqueries")
public ListStatistic getfreqUsedSqlQueries() {
if (freqSqlTraceCache != null) {
List sqlTraces = freqSqlTraceCache.getTopQueries();
freqUsedSqlQueries = new ListStatisticImpl("frequsedsqlqueries", "List", "Most frequently used sql queries");
for (SQLTrace trace : sqlTraces) {
CountStatisticImpl stat = new CountStatisticImpl(trace.getQueryName(), "Count", "");
stat.setCount(trace.getNumExecutions());
freqUsedSqlQueries.add(stat);
}
}
return freqUsedSqlQueries;
}
@ManagedAttribute(id = "slowSqlQueries")
public ListStatistic getSlowSqlQueries() {
//Make sure no data from previous execution is kept
slowSqlQueries.reset();
slowSqlQueries.clear();
if (slowSqlTraceCache != null) {
//Get slow queries and process them
List slowTraces = slowSqlTraceCache.getSlowestSqlQueries();
for (SlowSqlTrace trace : slowTraces) {
CountStatisticImpl stat = new CountStatisticImpl(trace.getQueryName(), StatisticImpl.UNIT_MILLISECOND, "Longest execution time");
stat.setCount(trace.getSlowestExecutionTime());
slowSqlQueries.add(stat);
}
}
return slowSqlQueries;
}
@ManagedAttribute(id="numpotentialstatementleak")
public CountStatistic getNumPotentialStatementLeak() {
return numPotentialStatementLeak;
}
/**
* Get the FrequentSQLTraceCache associated with this stats provider.
* @return FrequentSQLTraceCache The FrequentSQLTraceCache associated with this stats provider
*/
public FrequentSQLTraceCache getFreqSqlTraceCache() {
return freqSqlTraceCache;
}
/**
* Get the SlowSqlTraceCache associated with this stats provider.
* @return SlowSqlTraceCache The SlowSqlTraceCache associated with this stats provider
*/
public SlowSqlTraceCache getSlowSqlTraceCache() {
return slowSqlTraceCache;
}
}
