Class SlowQueryReport
- java.lang.Object
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- org.apache.tomcat.jdbc.pool.JdbcInterceptor
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- org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor
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- org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport
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- org.apache.tomcat.jdbc.pool.interceptor.SlowQueryReport
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- All Implemented Interfaces:
java.lang.reflect.InvocationHandler
- Direct Known Subclasses:
SlowQueryReportJmx
public class SlowQueryReport extends AbstractQueryReport
Slow query report interceptor. Tracks timing of query executions.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static classSlowQueryReport.QueryStatsstatic classSlowQueryReport.QueryStatsComparatorCompare QueryStats by their lastInvocation value.-
Nested classes/interfaces inherited from class org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport
AbstractQueryReport.StatementProxy
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Field Summary
Fields Modifier and Type Field Description protected booleanlogFailedFlag to enable disable logging of failed queriesprotected booleanlogSlowFlag to enable disable logging of slow queriesprotected intmaxQueriesMaximum number of queries we will be storingprotected static java.util.concurrent.ConcurrentHashMap<java.lang.String,java.util.concurrent.ConcurrentHashMap<java.lang.String,SlowQueryReport.QueryStats>>perPoolStatswe will be keeping track of query stats on a per pool basisprotected java.util.concurrent.ConcurrentHashMap<java.lang.String,SlowQueryReport.QueryStats>queriesthe queries that are used for this interceptor.protected java.util.Comparator<SlowQueryReport.QueryStats>queryStatsComparatorSort QueryStats by last invocation time-
Fields inherited from class org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport
threshold
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Fields inherited from class org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor
constructors, CREATE_STATEMENT, CREATE_STATEMENT_IDX, EXECUTE, EXECUTE_BATCH, EXECUTE_QUERY, EXECUTE_TYPES, EXECUTE_UPDATE, PREPARE_CALL, PREPARE_CALL_IDX, PREPARE_STATEMENT, PREPARE_STATEMENT_IDX, STATEMENT_TYPE_COUNT, STATEMENT_TYPES
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Fields inherited from class org.apache.tomcat.jdbc.pool.JdbcInterceptor
CLOSE_VAL, EQUALS_VAL, GETCONNECTION_VAL, HASHCODE_VAL, ISCLOSED_VAL, ISVALID_VAL, ISWRAPPERFOR_VAL, properties, TOSTRING_VAL, UNWRAP_VAL
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Constructor Summary
Constructors Constructor Description SlowQueryReport()Creates a slow query report interceptor
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description voidcloseInvoked()invoked when the connection receives the close request Not used for now.static java.util.concurrent.ConcurrentHashMap<java.lang.String,SlowQueryReport.QueryStats>getPoolStats(java.lang.String poolname)Returns the query stats for a given poolprotected SlowQueryReport.QueryStatsgetQueryStats(java.lang.String sql)booleanisLogFailed()booleanisLogSlow()voidpoolClosed(ConnectionPool pool)This method is invoked by a connection pool when the pool is closed.voidpoolStarted(ConnectionPool pool)This method is invoked by a connection pool when the pool is first started up, usually when the first connection is requested.voidprepareCall(java.lang.String sql, long time)Invoked when prepareCall has been called and completed.voidprepareStatement(java.lang.String sql, long time)Invoked when prepareStatement has been called and completed.protected voidremoveOldest(java.util.concurrent.ConcurrentHashMap<java.lang.String,SlowQueryReport.QueryStats> queries)Sort QueryStats by last invocation timeprotected java.lang.StringreportFailedQuery(java.lang.String query, java.lang.Object[] args, java.lang.String name, long start, java.lang.Throwable t)Invoked when a query execution, a call to execute/executeQuery or executeBatch failed.protected java.lang.StringreportQuery(java.lang.String query, java.lang.Object[] args, java.lang.String name, long start, long delta)Invoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was within the timing thresholdprotected java.lang.StringreportSlowQuery(java.lang.String query, java.lang.Object[] args, java.lang.String name, long start, long delta)Invoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was exceeded the timing thresholdvoidreset(ConnectionPool parent, PooledConnection con)no-op for this interceptor. no state is stored.voidsetLogFailed(boolean logFailed)voidsetLogSlow(boolean logSlow)voidsetMaxQueries(int maxQueries)voidsetProperties(java.util.Map<java.lang.String,PoolProperties.InterceptorProperty> properties)Called during the creation of an interceptor The properties can be set during the configuration of an interceptor Override this method to perform type casts between string values and object properties-
Methods inherited from class org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport
createStatement, getThreshold, setThreshold
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Methods inherited from class org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor
getConstructor, invoke, isExecute, isStatement, process
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Methods inherited from class org.apache.tomcat.jdbc.pool.JdbcInterceptor
compare, compare, disconnected, getNext, getProperties, isUseEquals, setNext, setUseEquals
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Field Detail
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perPoolStats
protected static final java.util.concurrent.ConcurrentHashMap<java.lang.String,java.util.concurrent.ConcurrentHashMap<java.lang.String,SlowQueryReport.QueryStats>> perPoolStats
we will be keeping track of query stats on a per pool basis
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queries
protected volatile java.util.concurrent.ConcurrentHashMap<java.lang.String,SlowQueryReport.QueryStats> queries
the queries that are used for this interceptor.
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maxQueries
protected int maxQueries
Maximum number of queries we will be storing
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logSlow
protected boolean logSlow
Flag to enable disable logging of slow queries
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logFailed
protected boolean logFailed
Flag to enable disable logging of failed queries
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queryStatsComparator
protected final java.util.Comparator<SlowQueryReport.QueryStats> queryStatsComparator
Sort QueryStats by last invocation time
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Method Detail
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getPoolStats
public static java.util.concurrent.ConcurrentHashMap<java.lang.String,SlowQueryReport.QueryStats> getPoolStats(java.lang.String poolname)
Returns the query stats for a given pool- Parameters:
poolname- - the name of the pool we want to retrieve stats for- Returns:
- a hash map containing statistics for 0 to maxQueries
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setMaxQueries
public void setMaxQueries(int maxQueries)
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reportFailedQuery
protected java.lang.String reportFailedQuery(java.lang.String query, java.lang.Object[] args, java.lang.String name, long start, java.lang.Throwable t)Description copied from class:AbstractQueryReportInvoked when a query execution, a call to execute/executeQuery or executeBatch failed.- Overrides:
reportFailedQueryin classAbstractQueryReport- Parameters:
query- the query that was executed and failedargs- the arguments to the executionname- the name of the method used to executeAbstractCreateStatementInterceptor.isExecute(Method, boolean)start- the time the query execution startedt- the exception that happened- Returns:
- - the SQL that was executed or the string "batch" if it was a batch execution
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reportQuery
protected java.lang.String reportQuery(java.lang.String query, java.lang.Object[] args, java.lang.String name, long start, long delta)Description copied from class:AbstractQueryReportInvoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was within the timing threshold- Overrides:
reportQueryin classAbstractQueryReport- Parameters:
query- the query that was executed and failedargs- the arguments to the executionname- the name of the method used to executeAbstractCreateStatementInterceptor.isExecute(Method, boolean)start- the time the query execution starteddelta- the time the execution took- Returns:
- - the SQL that was executed or the string "batch" if it was a batch execution
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reportSlowQuery
protected java.lang.String reportSlowQuery(java.lang.String query, java.lang.Object[] args, java.lang.String name, long start, long delta)Description copied from class:AbstractQueryReportInvoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was exceeded the timing threshold- Overrides:
reportSlowQueryin classAbstractQueryReport- Parameters:
query- the query that was executed and failedargs- the arguments to the executionname- the name of the method used to executeAbstractCreateStatementInterceptor.isExecute(Method, boolean)start- the time the query execution starteddelta- the time the execution took- Returns:
- - the SQL that was executed or the string "batch" if it was a batch execution
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closeInvoked
public void closeInvoked()
invoked when the connection receives the close request Not used for now.- Specified by:
closeInvokedin classAbstractCreateStatementInterceptor
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prepareStatement
public void prepareStatement(java.lang.String sql, long time)Description copied from class:AbstractQueryReportInvoked when prepareStatement has been called and completed.- Specified by:
prepareStatementin classAbstractQueryReport- Parameters:
sql- - the string used to prepare the statement withtime- - the time it took to invoke prepare
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prepareCall
public void prepareCall(java.lang.String sql, long time)Description copied from class:AbstractQueryReportInvoked when prepareCall has been called and completed.- Specified by:
prepareCallin classAbstractQueryReport- Parameters:
sql- - the string used to prepare the statement withtime- - the time it took to invoke prepare
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poolStarted
public void poolStarted(ConnectionPool pool)
Description copied from class:JdbcInterceptorThis method is invoked by a connection pool when the pool is first started up, usually when the first connection is requested. Interceptor classes can override this method if they keep static variables or other tracking means around. This method is only invoked on a single instance of the interceptor, and not on every instance created.- Overrides:
poolStartedin classJdbcInterceptor- Parameters:
pool- - the pool that is being closed.
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poolClosed
public void poolClosed(ConnectionPool pool)
Description copied from class:JdbcInterceptorThis method is invoked by a connection pool when the pool is closed. Interceptor classes can override this method if they keep static variables or other tracking means around. This method is only invoked on a single instance of the interceptor, and not on every instance created.- Overrides:
poolClosedin classJdbcInterceptor- Parameters:
pool- - the pool that is being closed.
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getQueryStats
protected SlowQueryReport.QueryStats getQueryStats(java.lang.String sql)
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removeOldest
protected void removeOldest(java.util.concurrent.ConcurrentHashMap<java.lang.String,SlowQueryReport.QueryStats> queries)
Sort QueryStats by last invocation time- Parameters:
queries- The queries map
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reset
public void reset(ConnectionPool parent, PooledConnection con)
Description copied from class:AbstractCreateStatementInterceptorno-op for this interceptor. no state is stored.- Overrides:
resetin classAbstractCreateStatementInterceptor- Parameters:
parent- - the connection pool owning the connectioncon- - the pooled connection
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isLogSlow
public boolean isLogSlow()
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setLogSlow
public void setLogSlow(boolean logSlow)
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isLogFailed
public boolean isLogFailed()
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setLogFailed
public void setLogFailed(boolean logFailed)
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setProperties
public void setProperties(java.util.Map<java.lang.String,PoolProperties.InterceptorProperty> properties)
Description copied from class:JdbcInterceptorCalled during the creation of an interceptor The properties can be set during the configuration of an interceptor Override this method to perform type casts between string values and object properties- Overrides:
setPropertiesin classJdbcInterceptor- Parameters:
properties- The properties
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