From 0d1bed42659b869bcd5ffb4d11e6d0217509eee8 Mon Sep 17 00:00:00 2001
From: LO Kam Tao Leo <leolo@leolo.org>
Date: Sun, 16 Oct 2022 17:17:00 +0100
Subject: [PATCH] Loading configuration

---
 .gitignore                                         |   1 +
 .idea/workspace.xml                                |  20 +++-
 pom.xml                                            |   1 +
 src/main/java/org/leolo/nrdatad/App.java           |   2 +-
 .../org/leolo/nrdatad/ConfigurationManager.java    | 114 +++++++++++++++++++++
 src/main/resources/log4j2.xml                      |  22 ++++
 6 files changed, 157 insertions(+), 3 deletions(-)
 create mode 100644 src/main/java/org/leolo/nrdatad/ConfigurationManager.java
 create mode 100644 src/main/resources/log4j2.xml

diff --git a/.gitignore b/.gitignore
index 5d199ce..735d8bd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,3 +39,4 @@ build/
 
 ### Configuration file
 /nrdatad.conf
+ri_log*
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 2b0405e..69aafa7 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -5,7 +5,8 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="b9554e7b-3332-419c-960c-8bfbee0d5311" name="Changes" comment="">
-      <change beforePath="$PROJECT_DIR$/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/java/org/leolo/nrdatad/ConfigurationManager.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/main/resources/log4j2.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/main/java/org/leolo/nrdatad/App.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/org/leolo/nrdatad/App.java" afterDir="false" />
@@ -15,6 +16,13 @@
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
     <option name="LAST_RESOLUTION" value="IGNORE" />
   </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Class" />
+      </list>
+    </option>
+  </component>
   <component name="Git.Settings">
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
@@ -37,6 +45,11 @@
   }
 }]]></component>
   <component name="RecentsManager">
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="D:\IdeaProjects\nr-data-damon\src\main\resources" />
+      <recent name="D:\IdeaProjects\nr-data-damon\src\main\java" />
+      <recent name="D:\IdeaProjects\nr-data-damon" />
+    </key>
     <key name="MoveClassesOrPackagesDialog.RECENTS_KEY">
       <recent name="org.leolo.nrdatad" />
     </key>
@@ -63,13 +76,16 @@
       <option name="number" value="Default" />
       <option name="presentableId" value="Default" />
       <updated>1665904334835</updated>
-      <workItem from="1665904336661" duration="2746000" />
+      <workItem from="1665904336661" duration="6172000" />
     </task>
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
     <option name="version" value="3" />
   </component>
+  <component name="UnknownFeatures">
+    <option featureType="com.intellij.fileTypeFactory" implementationName="*.conf" />
+  </component>
   <component name="Vcs.Log.Tabs.Properties">
     <option name="TAB_STATES">
       <map>
diff --git a/pom.xml b/pom.xml
index bcd91ab..45475f4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -87,4 +87,5 @@
       </plugins>
     </pluginManagement>
   </build>
+
 </project>
diff --git a/src/main/java/org/leolo/nrdatad/App.java b/src/main/java/org/leolo/nrdatad/App.java
index 5d3ef38..7c2fe65 100644
--- a/src/main/java/org/leolo/nrdatad/App.java
+++ b/src/main/java/org/leolo/nrdatad/App.java
@@ -36,6 +36,6 @@ public class App {
 
     private void run(String configPath){
         logger.always().log("System Started.");
-
+        ConfigurationManager.getInstance().loadConfiguration(configPath);
     }
 }
diff --git a/src/main/java/org/leolo/nrdatad/ConfigurationManager.java b/src/main/java/org/leolo/nrdatad/ConfigurationManager.java
new file mode 100644
index 0000000..6232091
--- /dev/null
+++ b/src/main/java/org/leolo/nrdatad/ConfigurationManager.java
@@ -0,0 +1,114 @@
+package org.leolo.nrdatad;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.PrintStream;
+import java.io.PrintWriter;
+import java.util.*;
+import java.util.function.BiConsumer;
+
+public final class ConfigurationManager {
+    private static ConfigurationManager instance;
+    Logger logger = LogManager.getLogger();
+    Properties prop = new Properties();
+    
+    public synchronized static ConfigurationManager getInstance(){
+        if(instance==null){
+            instance = new ConfigurationManager();
+        }
+        return instance;
+    }
+    
+    private ConfigurationManager(){
+        
+    }
+
+    public void loadConfiguration(String configPath) {
+        logger.atInfo().log("Loading configuration file {}.", configPath);
+        try {
+            prop.load(new FileReader(configPath));
+        } catch (IOException e) {
+            logger.atError().withThrowable(e).log("Unable to load configuration file");
+        }
+        logger.atInfo().log("Loaded {} setting(s)", prop.size());
+    }
+
+    public Object setProperty(String key, String value) {
+        return prop.setProperty(key, value);
+    }
+
+    public String getProperty(String key) {
+        return prop.getProperty(key);
+    }
+
+    public String getProperty(String key, String defaultValue) {
+        return prop.getProperty(key, defaultValue);
+    }
+
+    public Enumeration<?> propertyNames() {
+        return prop.propertyNames();
+    }
+
+    public Set<String> stringPropertyNames() {
+        return prop.stringPropertyNames();
+    }
+
+    public void list(PrintStream out) {
+        prop.list(out);
+    }
+
+    public void list(PrintWriter out) {
+        prop.list(out);
+    }
+
+    public int size() {
+        return prop.size();
+    }
+
+    public boolean isEmpty() {
+        return prop.isEmpty();
+    }
+
+    public Enumeration<Object> keys() {
+        return prop.keys();
+    }
+
+    public Enumeration<Object> elements() {
+        return prop.elements();
+    }
+
+    public boolean contains(Object value) {
+        return prop.contains(value);
+    }
+
+    public boolean containsValue(Object value) {
+        return prop.containsValue(value);
+    }
+
+    public boolean containsKey(Object key) {
+        return prop.containsKey(key);
+    }
+
+    public Set<Object> keySet() {
+        return prop.keySet();
+    }
+
+    public Collection<Object> values() {
+        return prop.values();
+    }
+
+    public Set<Map.Entry<Object, Object>> entrySet() {
+        return prop.entrySet();
+    }
+
+    public Object getOrDefault(Object key, Object defaultValue) {
+        return prop.getOrDefault(key, defaultValue);
+    }
+
+    public void forEach(BiConsumer<? super Object, ? super Object> action) {
+        prop.forEach(action);
+    }
+}
diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
new file mode 100644
index 0000000..091bae8
--- /dev/null
+++ b/src/main/resources/log4j2.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="warn">
+    <Appenders>
+        <Console name="Console" target="SYSTEM_OUT">
+            <PatternLayout
+                    pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
+        </Console>
+        <File name="RIlog" fileName="ri_log">
+            <PatternLayout
+                    pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
+        </File>
+    </Appenders>
+    <Loggers>
+        <Root level="info">
+            <AppenderRef ref="Console" />
+        </Root>
+        <Logger name="org.leolo.nrdd">
+            <AppenderRef ref="Console" />
+            <AppenderRef ref="RIlog" />
+        </Logger>
+    </Loggers>
+</Configuration>
\ No newline at end of file