Class SecurityManagerCallStack
- java.lang.Object
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- org.datanucleus.store.rdbms.datasource.dbcp2.pool2.impl.SecurityManagerCallStack
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- All Implemented Interfaces:
CallStack
public class SecurityManagerCallStack extends java.lang.Object implements CallStack
CallStack strategy using aSecurityManager
. Obtaining the current call stack is much faster via a SecurityManger, but access to the underlying method may be restricted by the current SecurityManager. In environments where a SecurityManager cannot be created,ThrowableCallStack
should be used instead.- Since:
- 2.4.3
- See Also:
RuntimePermission
,SecurityManager.getClassContext()
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Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
SecurityManagerCallStack.PrivateSecurityManager
A custom security manager.private static class
SecurityManagerCallStack.Snapshot
A snapshot of a class stack.
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Field Summary
Fields Modifier and Type Field Description private java.text.DateFormat
dateFormat
private java.lang.String
messageFormat
private SecurityManagerCallStack.PrivateSecurityManager
securityManager
private SecurityManagerCallStack.Snapshot
snapshot
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Constructor Summary
Constructors Constructor Description SecurityManagerCallStack(java.lang.String messageFormat, boolean useTimestamp)
Create a new instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clear()
Clears the current stack trace snapshot.void
fillInStackTrace()
Takes a snapshot of the current call stack.boolean
printStackTrace(java.io.PrintWriter writer)
Prints the current stack trace if available to a PrintWriter.
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Field Detail
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messageFormat
private final java.lang.String messageFormat
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dateFormat
private final java.text.DateFormat dateFormat
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securityManager
private final SecurityManagerCallStack.PrivateSecurityManager securityManager
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snapshot
private volatile SecurityManagerCallStack.Snapshot snapshot
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Method Detail
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printStackTrace
public boolean printStackTrace(java.io.PrintWriter writer)
Description copied from interface:CallStack
Prints the current stack trace if available to a PrintWriter. The format is undefined and is primarily useful for debugging issues withPooledObject
usage in user code.- Specified by:
printStackTrace
in interfaceCallStack
- Parameters:
writer
- a PrintWriter to write the current stack trace to if available- Returns:
- true if a stack trace was available to print or false if nothing was printed
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fillInStackTrace
public void fillInStackTrace()
Description copied from interface:CallStack
Takes a snapshot of the current call stack. Subsequent calls toCallStack.printStackTrace(PrintWriter)
will print out that stack trace until it is cleared.- Specified by:
fillInStackTrace
in interfaceCallStack
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clear
public void clear()
Description copied from interface:CallStack
Clears the current stack trace snapshot. Subsequent calls toCallStack.printStackTrace(PrintWriter)
will be no-ops until another call toCallStack.fillInStackTrace()
.
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