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Polymorphic clone for CRT Pattern in templates (basically a static_cast for concrete initializations of template class)

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This commit is contained in:
Klaus Basan
2013-04-27 17:18:32 +02:00
parent b257862aac
commit c97ddc4e3b
8 changed files with 248 additions and 244 deletions
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333
src/blackmisc/log.cpp
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@@ -27,199 +27,200 @@
namespace BlackMisc
{
CLog::CLog(IContext &context, TLogType logType) : m_context(context), m_logType(logType)
CLog::CLog(IContext &context, TLogType logType) : m_context(context), m_logType(logType)
{
}
CLog::~CLog(void)
{
}
void CLog::printWithNewLine(QString &message)
{
//! If we have no displays, we have nothing to do.
if (hasNoDisplays())
{
return;
}
CLog::~CLog(void)
QChar newLine = '\n';
//! We should print the message with a new line. So check
//! if one is already there. If not append it.
if (!message.endsWith(newLine, Qt::CaseInsensitive))
message.append(newLine);
printString(message);
}
void CLog::print(QString &message)
{
//! If we have no displays, we have nothing to do.
if (hasNoDisplays())
{
return;
}
void CLog::printWithNewLine(QString &message)
printString(message);
}
void CLog::printString(QString &message)
{
QString logDisplay;
//! Just in case, lets set the default name
m_context.setDefaultApplicationName();
//! If the current line is empty, then put some information as
//! the prefix.
//! Be aware: This information must be set by the \sa setLogInformation()
//! before.
if (m_logLine.isEmpty())
{
//! If we have no displays, we have nothing to do.
if (hasNoDisplays())
m_logInformation.m_dateTime = QDateTime::currentDateTime();
m_logInformation.m_logType = m_logType;
m_logInformation.m_applicationName = m_context.getApplicationName();
m_logInformation.m_threadId = 0; //getThreadId();
m_logInformation.m_sourceFile = m_sourceFile;
m_logInformation.m_line = m_line;
m_logInformation.m_methodName = m_methodName;
m_logLine = message;
}
else
{
m_logLine += message;
}
//! If this is not the end of the line, we are done for now.
if (! message.contains('\n'))
{
return;
}
for (TLogDisplayList::iterator it = m_logDisplays.begin(); it != m_logDisplays.end(); ++it)
{
(*it)->print(m_logInformation, m_logLine);
}
//! Reset everything for the next line
m_logLine.clear();
resetLogInformation();
}
void CLog::attachDisplay(ILogDisplay *display)
{
//! Display must be a valid pointer
if (display == NULL)
{
printf("Trying to add a NULL pointer\n");
return;
}
//! Check if it is already attached
if (!m_logDisplays.contains(display))
{
m_logDisplays.push_back(display);
}
else
{
bWarning(m_context) << "Couldn't attach the display - already in the list!";
}
}
ILogDisplay *CLog::getDisplay(const QString &displayName)
{
//! Must be a valid name
if (displayName.isEmpty())
{
bWarning(m_context) << "Cannot return a display with empty name!";
return NULL;
}
TLogDisplayList::const_iterator it;
//! Loop through the list and find the candidate
for (it = m_logDisplays.constBegin(); it != m_logDisplays.constEnd(); ++it)
{
//! Does it have the desired name?
if ((*it)->DisplayName == displayName)
{
return;
return *it;
}
}
return NULL;
}
QChar newLine = '\n';
//! We should print the message with a new line. So check
//! if one is already there. If not append it.
if (!message.endsWith(newLine, Qt::CaseInsensitive))
message.append(newLine);
printString(message);
void CLog::dettachDisplay(ILogDisplay *logDisplay)
{
//! Must be a valid pointer
if (logDisplay == NULL)
{
bWarning(m_context) << "Cannot remove a NULL displayer!";
return;
}
void CLog::print(QString &message)
{
//! If we have no displays, we have nothing to do.
if (hasNoDisplays())
{
return;
}
//! We should have only one, but just in case.
m_logDisplays.removeAll(logDisplay);
printString(message);
}
void CLog::dettachDisplay(const QString &displayName)
{
//! Must be a valid name
if (displayName.isEmpty())
{
bWarning(m_context) << "Cannot remove displayer with empty name!";
return;
}
void CLog::printString(QString &message)
TLogDisplayList::iterator it;
for (it = m_logDisplays.begin(); it != m_logDisplays.end();)
{
QString logDisplay;
//! Just in case, lets set the default name
m_context.setDefaultApplicationName();
//! If the current line is empty, then put some information as
//! the prefix.
//! Be aware: This information must be set by the \sa setLogInformation()
//! before.
if (m_logLine.isEmpty())
if ((*it)->DisplayName == displayName)
{
m_logInformation.m_dateTime = QDateTime::currentDateTime();
m_logInformation.m_logType = m_logType;
m_logInformation.m_applicationName = m_context.getApplicationName();
m_logInformation.m_threadId = 0; //getThreadId();
m_logInformation.m_sourceFile = m_sourceFile;
m_logInformation.m_line = m_line;
m_logInformation.m_methodName = m_methodName;
m_logLine = message;
it = m_logDisplays.erase(it);
}
else
{
m_logLine += message;
++it;
}
//! If this is not the end of the line, we are done for now.
if (! message.contains('\n'))
{
return;
}
for (TLogDisplayList::iterator it = m_logDisplays.begin(); it != m_logDisplays.end(); ++it)
{
(*it)->print(m_logInformation, m_logLine);
}
//! Reset everything for the next line
m_logLine.clear();
resetLogInformation();
}
}
void CLog::attachDisplay(ILogDisplay *display)
bool CLog::isAttached(ILogDisplay *logDisplay) const
{
return m_logDisplays.contains(logDisplay);
}
void CLog::setLogInformation(int line, const char *sourceFile, const char *methodName)
{
//! We have to make sure, we at least one display.
if (!hasNoDisplays())
{
//! Display must be a valid pointer
if (display == NULL)
{
printf("Trying to add a NULL pointer\n");
return;
}
//! Check if it is already attached
if (!m_logDisplays.contains(display))
{
m_logDisplays.push_back(display);
}
else
{
bWarning(m_context) << "Couldn't attach the display - already in the list!";
}
m_mutex.lock();
m_posSet++;
m_sourceFile = sourceFile;
m_line = line;
m_methodName = methodName;
}
}
ILogDisplay *CLog::getDisplay(const QString &displayName)
void CLog::resetLogInformation()
{
//! It should be impossible that this gets called, withoud
//! having a attached display.
Q_ASSERT(!hasNoDisplays());
if (m_posSet > 0)
{
//! Must be a valid name
if (displayName.isEmpty())
{
bWarning(m_context) << "Cannot return a display with empty name!";
return NULL;
}
TLogDisplayList::const_iterator it;
//! Loop through the list and find the candidate
for (it = m_logDisplays.constBegin(); it != m_logDisplays.constEnd(); ++it)
{
//! Does it have the desired name?
if ((*it)->DisplayName == displayName)
{
return *it;
}
}
}
void CLog::dettachDisplay(ILogDisplay *logDisplay)
{
//! Must be a valid pointer
if (logDisplay == NULL)
{
bWarning(m_context) << "Cannot remove a NULL displayer!";
return;
}
//! We should have only one, but just in case.
m_logDisplays.removeAll(logDisplay);
}
void CLog::dettachDisplay(const QString &displayName)
{
//! Must be a valid name
if (displayName.isEmpty())
{
bWarning(m_context) << "Cannot remove displayer with empty name!";
return;
}
TLogDisplayList::iterator it;
for (it = m_logDisplays.begin(); it != m_logDisplays.end();)
{
if ((*it)->DisplayName == displayName)
{
it = m_logDisplays.erase(it);
}
else
{
++it;
}
}
}
bool CLog::isAttached(ILogDisplay *logDisplay) const
{
return m_logDisplays.contains(logDisplay);
}
void CLog::setLogInformation(int line, const char *sourceFile, const char *methodName)
{
//! We have to make sure, we at least one display.
if (!hasNoDisplays())
{
m_mutex.lock();
m_posSet++;
m_sourceFile = sourceFile;
m_line = line;
m_methodName = methodName;
}
}
void CLog::resetLogInformation()
{
//! It should be impossible that this gets called, withoud
//! having a attached display.
Q_ASSERT(!hasNoDisplays());
if (m_posSet > 0)
{
m_sourceFile = NULL;
m_line = -1;
m_methodName = NULL;
m_posSet--;
m_mutex.unlock();
}
m_sourceFile = NULL;
m_line = -1;
m_methodName = NULL;
m_posSet--;
m_mutex.unlock();
}
}
} // namespace BlackMisc