mirror of https://github.com/nymea/nymea.git
72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
#ifndef LOGENGINE_H
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#define LOGENGINE_H
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#include "logentry.h"
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#include "types/param.h"
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#include "typeutils.h"
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#include "logger.h"
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#include <QObject>
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#include <QDateTime>
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#include <QLoggingCategory>
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Q_DECLARE_LOGGING_CATEGORY(dcLogEngine)
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class LogFetchJob: public QObject
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{
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Q_OBJECT
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public:
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LogFetchJob(QObject *parent = nullptr);
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LogEntries entries() const;
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signals:
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void finished(const LogEntries &entries);
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private:
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friend class LogEngine;
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void finish(const LogEntries &entries);
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LogEntries m_entries;
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};
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class LogEngine : public QObject
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{
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Q_OBJECT
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public:
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explicit LogEngine(QObject *parent = nullptr);
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virtual ~LogEngine() = default;
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// LogEngine keeps ownership:
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// * name: must be unique (table name)
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// * tags: optional, indexed column names for faster queries
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// Values for tagged columns must be non-null.
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// * loggingType defines wheter a source will log discrete values or should be resampled
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// * sampleColumn is required for LoggingTypeSampled. Values in the given column will be sampled
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virtual Logger *registerLogSource(const QString &name, const QStringList &tags = QStringList(), Types::LoggingType loggingType = Types::LoggingTypeDiscrete, const QString &sampleColumn = QString()) = 0;
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// Unregistering will discard all related entries from the log database.
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// It is not required to unregister or clean up a log source on application shutdown as the engine keeps ownership.
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virtual void unregisterLogSource(const QString &name) = 0;
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virtual LogFetchJob *fetchLogEntries(const QStringList &sources, const QStringList &columns = QStringList(), const QDateTime &from = QDateTime(), const QDateTime &to = QDateTime(), const QVariantMap &filer = QVariantMap(), Types::SampleRate sampleRate = Types::SampleRateAny, Qt::SortOrder sortOrder = Qt::AscendingOrder, int offset = 0, int limit = 0) = 0;
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virtual bool jobsRunning() const = 0;
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virtual void clear(const QString &source) = 0;
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signals:
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void logEntryAdded(const LogEntry &entry);
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protected:
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Logger *createLogger(const QString &name, const QStringList &tags, Types::LoggingType loggingType);
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void finishFetchJob(LogFetchJob *job, const LogEntries &entries);
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private:
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friend class Logger;
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virtual void logEvent(Logger *logger, const QStringList &tags, const QVariantMap &values) = 0;
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};
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#endif // LOGENGINE_H
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