SPM-29: done

src/main/java/de/hsel/spm/baudas/analysis/Analysis.java

@@ -0,0 +1,45 @@
+package de.hsel.spm.baudas.analysis;
+
+import org.jetbrains.annotations.Nullable;
+import weka.core.Instances;
+import weka.core.converters.CSVLoader;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * base interface for analysis
+ *
+ * @author Johannes Theiner
+ * @version 0.1
+ * @since 0.1
+ * @param <T> Type the chosen analysis returns as a result
+ */
+public interface Analysis<T> {
+
+
+    /**
+     * loads data from csv file
+     *
+     * @param file File to analyze
+     * @return loaded data in weka format
+     */
+    @Nullable
+    default Instances load(File file) {
+        CSVLoader loader = new CSVLoader();
+        try {
+            loader.setSource(file);
+            return loader.getDataSet();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    /**
+     * result of the analysis
+     *
+     * @return result as T
+     */
+    T getResult();
+}