Implementation of SmartConfig

src/main/com/jdbernard/util/SmartConfig.groovy

@@ -0,0 +1,62 @@
+package com.jdbernard.util
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SmartConfig {
+
+    private File file
+    private Properties props
+    private Logger log = LoggerFactory.getLogger(getClass())
+
+    public SmartConfig(File file) {
+        this.@file = file
+        this.@props = new Properties()
+
+        try { file.withInputStream { is -> this.@props.load(is) } }
+        catch (FileNotFoundException fnfe) {}
+        catch (Exception e) { log.warn("Cannot open config file.", e) }
+    }
+
+    public SmartConfig(String filename) { this(new File(filename)) }
+
+    public save() { 
+        try {file.withOutputStream { os -> this.@props.store(os, "") } }
+        catch (Exception e) { log.warn("Cannot save config file.", e) }
+    }
+
+    def getProperty(String name) { getProperty(name, "") }
+
+    def getProperty(String name, Object defVal) {
+
+        if (log.isTraceEnabled()) log.trace("Looking up $name")
+
+        def val = props.getProperty(name)
+
+        if (val == null) {
+            if (log.isTraceEnabled())
+                log.trace("Doesn't exists, setting with given default")
+
+            val = defVal
+            props.setProperty(name, defVal.toString())
+
+        } else {
+
+            // boolean
+            if (name ==~ /.*\?/) {
+                if (log.isTraceEnabled()) log.trace("Interpreting as a boolean")
+
+                if (val.toLowerCase() =~ /(false|no|off|f|n)/)
+                    val = false
+                else val = (Boolean) val
+            }
+        }
+
+        return val.asType(defVal.class)
+    }
+
+    void setProperty(String name, def value) {
+        props."$name" = value.toString()
+        save()
+    }
+}