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diff --git a/src/lib/log/logger_specification.h b/src/lib/log/logger_specification.h
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+// Copyright (C) 2011-2015 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef LOGGER_SPECIFICATION_H
+#define LOGGER_SPECIFICATION_H
+
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <log/logger_level.h>
+#include <log/output_option.h>
+
+/// \brief Logger Specification
+///
+/// The logging configuration options are a list of logger specifications, each
+/// of which represents a logger and the options for its appenders.
+///
+/// Unlike OutputOption (which is a struct), this contains a bit more
+/// structure and is concealed in a class.
+
+#include <vector>
+
+namespace isc {
+namespace log {
+
+class LoggerSpecification {
+public:
+    typedef std::vector<OutputOption>::iterator         iterator;
+    typedef std::vector<OutputOption>::const_iterator   const_iterator;
+
+    /// \brief Constructor
+    ///
+    /// \param name Name of the logger.
+    /// \param severity Severity at which this logger logs
+    /// \param dbglevel Debug level
+    /// \param additive true to cause message logged with this logger to be
+    ///        passed to the parent for logging.
+    LoggerSpecification(const std::string& name = "",
+                        isc::log::Severity severity = isc::log::INFO,
+                        int dbglevel = 0, bool additive = false) :
+        name_(name), severity_(severity), dbglevel_(dbglevel),
+        additive_(additive)
+    {}
+
+    /// \brief Set the name of the logger.
+    ///
+    /// \param name Name of the logger.
+    void setName(const std::string& name) {
+        name_ = name;
+    }
+
+    /// \return Return logger name.
+    std::string getName() const {
+        return name_;
+    }
+
+    /// \brief Set the severity.
+    ///
+    /// \param severity New severity of the logger.
+    void setSeverity(isc::log::Severity severity) {
+        severity_ = severity;
+    }
+
+    /// \return Return logger severity.
+    isc::log::Severity getSeverity() const {
+        return severity_;
+    }
+
+    /// \brief Set the debug level.
+    ///
+    /// \param dbglevel New debug level of the logger.
+    void setDbglevel(int dbglevel) {
+        dbglevel_ = dbglevel;
+    }
+
+    /// \return Return logger debug level
+    int getDbglevel() const {
+        return dbglevel_;
+    }
+
+    /// \brief Set the additive flag.
+    ///
+    /// \param additive New value of the additive flag.
+    void setAdditive(bool additive) {
+        additive_ = additive;
+    }
+
+    /// \return Return additive flag.
+    bool getAdditive() const {
+        return additive_;
+    }
+
+    /// \brief Add output option.
+    ///
+    /// \param option Option to add to the list.
+    void addOutputOption(const OutputOption& option) {
+        options_.push_back(option);
+    }
+
+    /// \return Iterator to start of output options.
+    iterator begin() {
+        return options_.begin();
+    }
+
+    /// \return Iterator to start of output options.
+    const_iterator begin() const {
+        return options_.begin();
+    }
+
+    /// \return Iterator to end of output options.
+    iterator end() {
+        return options_.end();
+    }
+
+    /// \return Iterator to end of output options.
+    const_iterator end() const {
+        return options_.end();
+    }
+
+    /// \return Number of output specification options.
+    size_t optionCount() const {
+        return options_.size();
+    }
+
+    /// \brief Reset back to defaults.
+    void reset() {
+        name_ = "";
+        severity_ = isc::log::INFO;
+        dbglevel_ = 0;
+        additive_ = false;
+        options_.clear();
+    }
+
+private:
+    std::string                 name_;          ///< Logger name
+    isc::log::Severity          severity_;      ///< Severity for this logger
+    int                         dbglevel_;      ///< Debug level
+    bool                        additive_;      ///< Chaining output
+    std::vector<OutputOption>   options_;       ///< Logger options
+};
+
+} // namespace log
+} // namespace isc
+
+#endif // LOGGER_SPECIFICATION_H