From ece7d18cf35374bf4e26d041799cda8f791c89f8 Mon Sep 17 00:00:00 2001
From: gregor <gregor@d688527b-c9ab-4aba-bd8d-4036d912da1d>
Date: Mon, 7 Jul 2003 10:58:37 +0000
Subject: Initial commit

git-svn-id: https://joinup.ec.europa.eu/svn/moa-idspss/trunk@2 d688527b-c9ab-4aba-bd8d-4036d912da1d
---
 .../gv/egovernment/moa/spss/api/Configurator.java  | 60 ++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 spss.server/src/at/gv/egovernment/moa/spss/api/Configurator.java

(limited to 'spss.server/src/at/gv/egovernment/moa/spss/api/Configurator.java')

diff --git a/spss.server/src/at/gv/egovernment/moa/spss/api/Configurator.java b/spss.server/src/at/gv/egovernment/moa/spss/api/Configurator.java
new file mode 100644
index 000000000..a0efa8924
--- /dev/null
+++ b/spss.server/src/at/gv/egovernment/moa/spss/api/Configurator.java
@@ -0,0 +1,60 @@
+package at.gv.egovernment.moa.spss.api;
+
+import org.apache.commons.discovery.tools.DiscoverClass;
+
+import at.gv.egovernment.moa.spss.MOAException;
+
+/**
+ * Configures the SP/SS API.
+ * 
+ * Also handles dynamic configuration updates. 
+ * 
+ * @author Patrick Peck
+ * @version $Id$
+ */
+public abstract class Configurator {
+
+  /** The default implementation class. */
+  private static final String DEFAULT_IMPLEMENTATION =
+    "at.gv.egovernment.moa.spss.server.init.ConfiguratorImpl";
+
+  /** The single instance of this class. */
+  private static Configurator instance = null;
+
+  public static synchronized Configurator getInstance() {
+    if (instance == null) {
+      try {
+        DiscoverClass discover = new DiscoverClass();
+        instance =
+          (Configurator) discover.newInstance(
+            Configurator.class,
+            DEFAULT_IMPLEMENTATION);
+      } catch (Exception e) {
+        // this can not happen since we provide a valid default 
+        // implementation
+      }
+    }
+    return instance;
+  }
+
+  /**
+   * Initialize the SP/SS configuration.
+   * 
+   * Only a single call to this method will have an effect. Use 
+   * <code>update()</code> for reflecting changes in the configuration instead. 
+   * 
+   * @throws MOAException An error occurred updating the SP/SS configuration.
+   */  
+  public abstract void init() throws MOAException;
+  
+  /**
+   * Update the SP/SS configuration.
+   * 
+   * This will only have an effect after the system has been initialized once
+   * using <code>init()</code>.
+   * 
+   * @throws MOAException An error occurred updating the SP/SS configuration.
+   */
+  public abstract void update() throws MOAException;
+
+}
-- 
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