Add new AttributeBuilder registration

1 files changed, 88 insertions, 0 deletions

diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/builder/AttributeBuilderRegistration.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/builder/AttributeBuilderRegistration.java
new file mode 100644
index 00000000..135bd789
--- /dev/null
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/builder/AttributeBuilderRegistration.java
@@ -0,0 +1,88 @@
+package at.gv.egiz.eaaf.core.impl.idp.builder;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.ServiceLoader;
+
+import at.gv.egiz.eaaf.core.api.idp.IAttributeBuilder;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class AttributeBuilderRegistration {
+
+  private static HashMap<String, IAttributeBuilder> builders;
+  
+  private static ServiceLoader<IAttributeBuilder> attributBuilderLoader =
+      ServiceLoader.load(IAttributeBuilder.class);
+
+  private static void addBuilder(final IAttributeBuilder builder) {
+    builders.put(builder.getName(), builder);
+  }
+
+  static {
+    builders = new HashMap<>();
+
+    log.info("Loading protocol attribut-builder modules:");
+    if (attributBuilderLoader != null) {
+      final Iterator<IAttributeBuilder> moduleLoaderInterator = attributBuilderLoader.iterator();
+      while (moduleLoaderInterator.hasNext()) {
+        try {
+          final IAttributeBuilder modul = moduleLoaderInterator.next();
+          log.info("Loading attribut-builder Modul Information: " + modul.getName());
+          addBuilder(modul);
+
+        } catch (final Throwable e) {
+          log.error("Check configuration! " + "Some attribute-builder modul"
+              + " is not a valid IAttributeBuilder", e);
+        }
+      }
+    }
+
+    log.info("Loading attribute-builder modules done");
+
+  }
+  
+  /**
+   * Get a specific attribute builder.
+   *
+   * @param name Attribute-builder friendly name
+   *
+   * @return Attribute-builder with this name or null if builder does not exists
+   */
+  public static IAttributeBuilder getAttributeBuilder(final String name) {
+    return builders.get(name);
+
+  }
+  
+  /**
+   * Check if a specific attribute-builder is available.
+   * 
+   * @param name Attribute-builder friendly name
+   * @return <code>true</code> if the builder is registered, otherwise <code>false</code>
+   */
+  public static boolean containsBuilder(final String name) {
+    return builders.containsKey(name);
+    
+  }
+  
+  /**
+   * Get all registered attribute-builder.
+   * 
+   * @return {@link Iterator} of all available builders
+   */
+  public static Iterator<IAttributeBuilder> getAllRegistratedBuilder() {
+    return builders.values().iterator();
+    
+  }
+  
+  /**
+   * Get the number of currently register attribute builders.
+   * 
+   * @return number of attribute builders
+   */
+  public static int getNumberOfRegisteredBuilders() {
+    return builders.size();
+    
+  }
+  
+}