1 files changed, 121 insertions, 0 deletions
diff --git a/src/lib/log/message_dictionary.cc b/src/lib/log/message_dictionary.cc
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+++ b/src/lib/log/message_dictionary.cc
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+// Copyright (C) 2011-2022 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/.
+
+#include <config.h>
+
+#include <cstddef>
+#include <log/message_dictionary.h>
+#include <log/message_types.h>
+
+using namespace std;
+
+namespace isc {
+namespace log {
+
+// Constructor
+
+MessageDictionary::MessageDictionary() : dictionary_(), empty_("") {
+}
+
+// (Virtual) Destructor
+
+MessageDictionary::~MessageDictionary() {
+}
+
+// Add message and note if ID already exists
+
+bool
+MessageDictionary::add(const std::string& ident, const std::string& text) {
+    Dictionary::iterator i = dictionary_.find(ident);
+    bool not_found = (i == dictionary_.end());
+    if (not_found) {
+
+        // Message not already in the dictionary, so add it.
+        dictionary_[ident] = text;
+    }
+
+    return (not_found);
+}
+
+// Add message and note if ID does not already exist
+
+bool
+MessageDictionary::replace(const std::string& ident, const std::string& text) {
+    Dictionary::iterator i = dictionary_.find(ident);
+    bool found = (i != dictionary_.end());
+    if (found) {
+
+        // Exists, so replace it.
+        dictionary_[ident] = text;
+    }
+
+    return (found);
+}
+
+bool
+MessageDictionary::erase(const std::string& ident, const std::string& text) {
+    Dictionary::iterator mes = dictionary_.find(ident);
+    // Both the ID and the text must match.
+    bool found = (mes != dictionary_.end() && (mes->second == text));
+    if (found) {
+        dictionary_.erase(mes);
+    }
+    return (found);
+}
+
+// Load a set of messages
+
+vector<std::string>
+MessageDictionary::load(const char* messages[]) {
+    vector<std::string> duplicates;
+    int i = 0;
+    while (messages[i]) {
+        // ID present, so point to text.
+        ++i;
+        if (messages[i]) {
+            const MessageID ident(messages[i - 1]);
+            // Text not null, note it and point to next ident.
+            const std::string text(messages[i]);
+            ++i;
+
+            // Add ID and text to message dictionary, noting if the ID was
+            // already present.
+            bool added = add(ident, text);
+            if (!added) {
+                duplicates.push_back(boost::lexical_cast<string>(ident));
+            }
+        }
+    }
+    return (duplicates);
+}
+
+// Return message text or blank string.  A reference is returned to a string
+// in the dictionary - this is fine, as the string is immediately used for
+// output.
+
+const string&
+MessageDictionary::getText(const std::string& ident) const {
+    Dictionary::const_iterator i = dictionary_.find(ident);
+    if (i == dictionary_.end()) {
+        return (empty_);
+    } else {
+        return (i->second);
+    }
+}
+
+// Return global dictionary
+
+const MessageDictionaryPtr&
+MessageDictionary::globalDictionary() {
+    static MessageDictionaryPtr global(new MessageDictionary());
+    return (global);
+}
+
+
+
+
+} // namespace log
+} // namespace isc