Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / utils / MetadataUtil.java

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/utils/MetadataUtil.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/utils/MetadataUtil.java
new file mode 100644 (file)
index 0000000..fd3237f
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/utils/MetadataUtil.java
@@ -0,0 +1,29 @@
+package org.simantics.db.common.utils;\r
+\r
+import java.lang.reflect.Method;\r
+import java.util.Map;\r
+\r
+import org.simantics.db.Metadata;\r
+\r
+public class MetadataUtil {\r
+    @SuppressWarnings("unchecked")\r
+    public static <T> T getMetadata(Map<String, byte[]> data, Class<? extends Metadata> dataClass) {\r
+        if (null == data || null == dataClass)\r
+            return null;\r
+        T result = null;\r
+        try {\r
+            Method m = dataClass.getMethod("deserialise", byte[].class);\r
+            byte[] bytes = data.get(dataClass.getName());\r
+            if (null != bytes) {\r
+                Object value = m.invoke(null, bytes);\r
+                result = (T)value;\r
+            } else\r
+                return null;\r
+        } catch (RuntimeException e) {\r
+            Logger.defaultLogError(e);\r
+        } catch (Exception e) {\r
+            Logger.defaultLogError(e);\r
+        }\r
+        return result;\r
+    }\r
+}\r