Add base for XmlConfig

src/EnvReader/IniConfig.php

@@ -8,6 +8,20 @@ use jrosset\ArrayClasses\InsensitiveCaseArrayClass;
 abstract class IniConfig extends GenericConfig implements IExternalConfigFile {
     use TMultiLevelProperties;
 
+    /**
+     * @inheritDoc
+     */
+    protected function readConfig (): void {
+        $configFile = $this->getConfigFilePath();
+        if (!file_exists($configFile)) {
+            throw new Exception('Unable to find configuration file "' . $configFile . '"');
+        }
+
+        if (($iniData = parse_ini_file($configFile, true, INI_SCANNER_RAW)) === false) {
+            throw new Exception('Unable to read configuration file "' . $configFile . '"');
+        }
+        self::parseIniLevel($iniData, $this->properties);
+    }
     /**
      * Parse an INI level to properties
      *
@@ -26,18 +40,4 @@ abstract class IniConfig extends GenericConfig implements IExternalConfigFile {
             $properties->set($iniKey, $iniValue);
         }
     }
-    /**
-     * @inheritDoc
-     */
-    protected function readConfig (): void {
-        $configFile = $this->getConfigFilePath();
-        if (!file_exists($configFile)) {
-            throw new Exception('Unable to find configuration file "' . $configFile . '"');
-        }
-
-        if (($iniData = parse_ini_file($configFile, true, INI_SCANNER_RAW)) === false) {
-            throw new Exception('Unable to read configuration file "' . $configFile . '"');
-        }
-        self::parseIniLevel($iniData, $this->properties);
-    }
 }

src/EnvReader/XmlConfig.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace jrosset\EnvReader;
+
+use Exception;
+use jrosset\ArrayClasses\InsensitiveCaseArrayClass;
+use SimpleXMLElement;
+
+abstract class XmlConfig extends GenericConfig implements IExternalConfigFile {
+    use TMultiLevelProperties;
+
+    /**
+     * @inheritDoc
+     */
+    protected function readConfig (): void {
+        $configFile = $this->getConfigFilePath();
+        if (!file_exists($configFile)) {
+            throw new Exception('Unable to find configuration file "' . $configFile . '"');
+        }
+
+        if (($xml = simplexml_load_file($configFile)) === false) {
+            $errors = [];
+            foreach (libxml_get_errors() as $error) {
+                $errorStr = '';
+                switch ($error->level) {
+                    case LIBXML_ERR_WARNING:
+                        $errorStr .= 'Warning';
+                    break;
+
+                    case LIBXML_ERR_ERROR:
+                        $errorStr .= 'Error';
+                    break;
+
+                    case LIBXML_ERR_FATAL:
+                        $errorStr .= 'Fatal error';
+                    break;
+                }
+                $errorStr .= ' #' . $error->code . ': ' . $error->message . ' (line: ' . $error->line . ', column: ' . $error->column . ')';
+                $errors[] = $errorStr;
+            }
+
+            throw new Exception('Unable to read configuration file "' . $configFile . '": ' . PHP_EOL . implode(PHP_EOL, $errors));
+        }
+        $this->properties = $this->parseXml($xml);
+    }
+    /**
+     * Parse an XML node to properties
+     *
+     * @param SimpleXMLElement          $xmlNode    The INI level
+     * @param InsensitiveCaseArrayClass $properties [OUT] The out properties list
+     *
+     * @return void
+     */
+    protected abstract function parseXml (SimpleXMLElement $xmlNode): InsensitiveCaseArrayClass;
+}