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MessageHandler Class Referenceabstract

A message handler. More...

#include <yatengine.h>

Inheritance diagram for MessageHandler:
String GenObject MessageRelay

Public Member Functions

 MessageHandler (const char *name, unsigned priority=100, const char *trackName=0, bool addPriority=true)
 
virtual ~MessageHandler ()
 
virtual void destruct ()
 
virtual bool received (Message &msg)=0
 
unsigned priority () const
 
const StringtrackName () const
 
void trackName (const char *name)
 
NamedCounterobjectsCounter () const
 
const NamedStringfilter () const
 
void setFilter (NamedString *filter)
 
void setFilter (const char *name, const char *value)
 
void clearFilter ()
 
- Public Member Functions inherited from String
 String ()
 
 String (const char *value, int len=-1)
 
 String (char value, unsigned int repeat=1)
 
 String (int32_t value)
 
 String (uint32_t value)
 
 String (int64_t value)
 
 String (uint64_t value)
 
 String (bool value)
 
 String (double value)
 
 String (const String &value)
 
 String (const String *value)
 
virtual ~String ()
 
virtual void * getObject (const String &name) const
 
const char * c_str () const
 
const char * safe () const
 
const char * safe (const char *defStr) const
 
unsigned int length () const
 
bool null () const
 
int lenUtf8 (uint32_t maxChar=0x10ffff, bool overlong=false) const
 
int fixUtf8 (const char *replace=0, uint32_t maxChar=0x10ffff, bool overlong=false)
 
bool checkBOM () const
 
bool stripBOM ()
 
unsigned int hash () const
 
void clear ()
 
char at (int index) const
 
String substr (int offs, int len=-1) const
 
StringtrimBlanks ()
 
StringtrimSpaces ()
 
virtual const StringtoString () const
 
int toInteger (int defvalue=0, int base=0, int minvalue=INT_MIN, int maxvalue=INT_MAX, bool clamp=true) const
 
int toInteger (const TokenDict *tokens, int defvalue=0, int base=0) const
 
long int toLong (long int defvalue=0, int base=0, long int minvalue=LONG_MIN, long int maxvalue=LONG_MAX, bool clamp=true) const
 
int64_t toInt64 (int64_t defvalue=0, int base=0, int64_t minvalue=LLONG_MIN, int64_t maxvalue=LLONG_MAX, bool clamp=true) const
 
double toDouble (double defvalue=0.0) const
 
bool toBoolean (bool defvalue=false) const
 
bool isBoolean () const
 
StringtoUpper ()
 
StringtoLower ()
 
char operator[] (signed int index) const
 
char operator[] (unsigned int index) const
 
 operator const char * () const
 
Stringassign (const char *value, int len=-1)
 
Stringassign (char value, unsigned int repeat=1)
 
Stringhexify (void *data, unsigned int len, char sep=0, bool upCase=false)
 
Stringoperator= (const String &value)
 
Stringoperator= (const String *value)
 
Stringoperator= (const char *value)
 
Stringoperator= (char value)
 
Stringoperator= (int32_t value)
 
Stringoperator= (uint32_t value)
 
Stringoperator= (int64_t value)
 
Stringoperator= (uint64_t value)
 
Stringoperator= (bool value)
 
Stringoperator= (double value)
 
Stringoperator+= (const char *value)
 
Stringoperator+= (char value)
 
Stringoperator+= (int32_t value)
 
Stringoperator+= (uint32_t value)
 
Stringoperator+= (int64_t value)
 
Stringoperator+= (uint64_t value)
 
Stringoperator+= (bool value)
 
Stringoperator+= (double value)
 
bool operator== (const char *value) const
 
bool operator!= (const char *value) const
 
bool operator== (const String &value) const
 
bool operator!= (const String &value) const
 
bool operator&= (const char *value) const
 
bool operator|= (const char *value) const
 
Stringoperator<< (const char *value)
 
Stringoperator<< (char value)
 
Stringoperator<< (int32_t value)
 
Stringoperator<< (uint32_t value)
 
Stringoperator<< (int64_t value)
 
Stringoperator<< (uint64_t value)
 
Stringoperator<< (bool value)
 
Stringoperator<< (double value)
 
Stringoperator>> (const char *skip)
 
Stringoperator>> (char &store)
 
Stringoperator>> (UChar &store)
 
Stringoperator>> (int &store)
 
Stringoperator>> (unsigned int &store)
 
Stringoperator>> (bool &store)
 
Stringappend (const char *value, int len)
 
Stringappend (const char *value, const char *separator=0, bool force=false)
 
Stringappend (const ObjList *list, const char *separator=0, bool force=false)
 
Stringappend (const ObjList &list, const char *separator=0, bool force=false)
 
Stringappend (double value, unsigned int decimals=3)
 
Stringprintf (const char *format,...)
 
Stringprintf (unsigned int length, const char *format,...)
 
StringappendFixed (unsigned int fixedLength, const char *str, unsigned int len=-1, char fill= ' ', int align=Left)
 
StringappendFixed (unsigned int fixedLength, const String &str, char fill= ' ', int align=Left)
 
int find (char what, unsigned int offs=0) const
 
int find (const char *what, unsigned int offs=0) const
 
int rfind (char what) const
 
int rfind (const char *what) const
 
bool startsWith (const char *what, bool wordBreak=false, bool caseInsensitive=false) const
 
bool endsWith (const char *what, bool wordBreak=false, bool caseInsensitive=false) const
 
bool startSkip (const char *what, bool wordBreak=true, bool caseInsensitive=false)
 
StringextractTo (const char *sep, String &store)
 
StringextractTo (const char *sep, bool &store)
 
StringextractTo (const char *sep, int &store, int base=0)
 
StringextractTo (const char *sep, int &store, const TokenDict *tokens, int base=0)
 
StringextractTo (const char *sep, double &store)
 
virtual bool matches (const String &value) const
 
bool matches (const Regexp &rexp)
 
int matchOffset (int index=0) const
 
int matchLength (int index=0) const
 
String matchString (int index=0) const
 
String replaceMatches (const String &templ) const
 
int matchCount () const
 
ObjListsplit (char separator, bool emptyOK=true) const
 
String msgEscape (char extraEsc=0) const
 
String msgUnescape (int *errptr=0, char extraEsc=0) const
 
String sqlEscape (char extraEsc=0) const
 
String uriEscape (char extraEsc=0, const char *noEsc=0) const
 
String uriUnescape (int *errptr=0) const
 
- Public Member Functions inherited from GenObject
 GenObject ()
 
virtual ~GenObject ()
 
virtual bool alive () const
 
NamedCountergetObjCounter () const
 
NamedCountersetObjCounter (NamedCounter *counter)
 

Protected Member Functions

void cleanup ()
 
virtual bool receivedInternal (Message &msg)
 
void safeNowInternal ()
 
- Protected Member Functions inherited from String
virtual void changed ()
 

Friends

class MessageDispatcher
 

Additional Inherited Members

- Public Types inherited from String
enum  Align { Left = 0, Center, Right }
 
- Static Public Member Functions inherited from String
static const Stringempty ()
 
static const char * boolText (bool value)
 
static int lenUtf8 (const char *value, uint32_t maxChar=0x10ffff, bool overlong=false)
 
static bool checkBOM (const char *str)
 
static bool stripBOM (const char *&str)
 
static bool stripBOM (char *&str)
 
static unsigned int hash (const char *value, unsigned int h=0)
 
static String msgEscape (const char *str, char extraEsc=0)
 
static String msgUnescape (const char *str, int *errptr=0, char extraEsc=0)
 
static String sqlEscape (const char *str, char extraEsc=0)
 
static String uriEscape (const char *str, char extraEsc=0, const char *noEsc=0)
 
static String uriEscape (const char *str, const char *extraEsc, const char *noEsc=0)
 
static String uriUnescape (const char *str, int *errptr=0)
 
static const Stringatom (const String *&str, const char *val)
 
- Static Public Member Functions inherited from GenObject
static void * getObject (const String &name, const GenObject *obj)
 
static bool getObjCounting ()
 
static void setObjCounting (bool enable)
 
static NamedCountergetObjCounter (const String &name, bool create=true)
 
static ObjListgetObjCounters ()
 

Detailed Description

A message handler.

The purpose of this class is to hold a message received method that is called for matching messages. It holds as well the matching criteria and priority among other handlers.

Constructor & Destructor Documentation

MessageHandler ( const char *  name,
unsigned  priority = 100,
const char *  trackName = 0,
bool  addPriority = true 
)
explicit

Creates a new message handler.

Parameters
nameName of the handled message - may be NULL
priorityPriority of the handler, 0 = top
trackNameName to be used in handler tracking
addPriorityTrue to append :priority to trackName
virtual ~MessageHandler ( )
virtual

Handler destructor.

Member Function Documentation

void cleanup ( )
protected

Remove the handler from its dispatcher, remove any installed filter. This method is called internally from destruct and the destructor

void clearFilter ( )

Remove and destroy any filter associated to this handler

virtual void destruct ( )
virtual

Destroys the object, performs cleanup first

Reimplemented from GenObject.

const NamedString* filter ( ) const
inline

Retrieve the filter (if installed) associated to this handler

NamedCounter* objectsCounter ( ) const
inline

Retrive the objects counter associated to this handler

Returns
Pointer to handler's objects counter or NULL
unsigned priority ( ) const
inline

Find out the priority of the handler

Returns
Stored priority of the handler, 0 = top
virtual bool received ( Message msg)
pure virtual

This method is called whenever the registered name matches the message.

Parameters
msgThe received message
Returns
True to stop processing, false to try other handlers

Implemented in MessageRelay.

virtual bool receivedInternal ( Message msg)
protectedvirtual

Internal use received function, do not call or override!

Parameters
msgThe received message
Returns
True if message was processed

Reimplemented in MessageRelay.

void safeNowInternal ( )
protected

Internal use handler unlock, do not call!

void setFilter ( NamedString filter)

Set a filter for this handler

Parameters
filterPointer to the filter to install, will be owned and destroyed by the handler

Referenced by MessageHandler::setFilter().

void setFilter ( const char *  name,
const char *  value 
)
inline

Set a filter for this handler

Parameters
nameName of the parameter to filter
valueValue of the parameter to filter

References MessageHandler::setFilter().

const String& trackName ( ) const
inline

Retrieve the tracking name of this handler

Returns
Name that is to be used in tracking operation
void trackName ( const char *  name)
inline

Set a new tracking name for this handler. Works only if the handler was not yet inserted into a dispatcher

Parameters
nameName that is to be used in tracking operation

The documentation for this class was generated from the following file: