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agents-flex-core/src/main/java/com/agentsflex/core/util/VectorUtil.java

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+/*
+ *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package com.agentsflex.core.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class VectorUtil {
+
+    public static float[] toFloatArray(double[] vector) {
+        if (vector == null) {
+            return null;
+        }
+        float[] output = new float[vector.length];
+        for (int i = 0; i < vector.length; i++) {
+            output[i] = (float) vector[i];
+        }
+        return output;
+    }
+
+
+    public static List<Float> toFloatList(double[] vector) {
+        if (vector == null) {
+            return null;
+        }
+        List<Float> output = new ArrayList<>(vector.length);
+        for (double v : vector) {
+            output.add((float) v);
+        }
+        return output;
+    }
+
+    public static double[] convertToVector(List<Float> floats) {
+        if (floats == null) {
+            return null;
+        }
+        double[] output = new double[floats.size()];
+        int index = 0;
+        for (Float aFloat : floats) {
+            output[index++] = aFloat;
+        }
+        return output;
+    }
+}