1 files changed, 82 insertions, 0 deletions
diff --git a/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/AdapterUtil.java b/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/AdapterUtil.java
new file mode 100644
index 0000000000..57ca7aea3f
--- /dev/null
+++ b/plugins/org.eclipse.net4j.util/src/org/eclipse/net4j/util/AdapterUtil.java
@@ -0,0 +1,82 @@
+/***************************************************************************
+ * Copyright (c) 2004 - 2008 Eike Stepper, Germany.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ **************************************************************************/
+package org.eclipse.net4j.util;
+
+/**
+ * @author Eike Stepper
+ */
+public final class AdapterUtil
+{
+  private AdapterUtil()
+  {
+  }
+
+  @SuppressWarnings("unchecked")
+  public static <TYPE> TYPE adapt(Object object, Class<TYPE> type)
+  {
+    Object adapter = null;
+    if (type.isInstance(object))
+    {
+      adapter = object;
+    }
+    else
+    {
+      try
+      {
+        adapter = AdaptableHelper.adapt(object, type);
+        if (adapter == null)
+        {
+          adapter = AdapterManagerHelper.adapt(object, type);
+        }
+      }
+      catch (Throwable ignore)
+      {
+      }
+    }
+
+    return (TYPE)adapter;
+  }
+
+  /**
+   * @author Eike Stepper
+   */
+  private static final class AdaptableHelper
+  {
+    public static Object adapt(Object object, Class<?> type)
+    {
+      if (object instanceof org.eclipse.core.runtime.IAdaptable)
+      {
+        return ((org.eclipse.core.runtime.IAdaptable)object).getAdapter(type);
+      }
+
+      return null;
+    }
+  }
+
+  /**
+   * @author Eike Stepper
+   */
+  private static final class AdapterManagerHelper
+  {
+    private static org.eclipse.core.runtime.IAdapterManager adapterManager = org.eclipse.core.runtime.Platform
+        .getAdapterManager();
+
+    public static Object adapt(Object object, Class<?> type)
+    {
+      if (adapterManager != null)
+      {
+        return adapterManager.getAdapter(object, type);
+      }
+
+      return null;
+    }
+  }
+}