新增：归一化算法批量计算

epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/support/normalizing/ScoreCalculator.java

@@ -79,7 +79,7 @@ public abstract class ScoreCalculator<T> {
         if (correlation == Correlation.POSITIVE) {
             // 正相关
             BigDecimal x = coefficient.multiply(convertValue2BigDecimal(sourceValue).subtract(minValue));
-            BigDecimal score = minScore.add(x, MathContext.DECIMAL32);
+            BigDecimal score = minScore.add(x);
             return score;
         } else if (correlation == Correlation.NEGATIVE) {
             // 负相关

epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/support/normalizing/ScoreConstants.java

@@ -0,0 +1,13 @@
+package com.epmet.support.normalizing;
+
+import java.math.BigDecimal;
+
+/**
+ * 分值常量
+ */
+public class ScoreConstants {
+
+    public static final BigDecimal MIN_SCORE = new BigDecimal(0);
+    public static final BigDecimal MAX_SCORE = new BigDecimal(100);
+
+}

epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/support/normalizing/batch/BatchScoreCalculator.java

@@ -0,0 +1,35 @@
+package com.epmet.support.normalizing.batch;
+
+import com.epmet.support.normalizing.ScoreCalculator;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class BatchScoreCalculator {
+
+    /**
+     * 每个指标都是一条数据，每一条数据中包含该指标的一组样本
+     */
+    private List<IndexInputVO> indexVOS;
+
+    /**
+     * 执行计算
+     * @return 每一条都是一个指标的，所有样本对应的，得分值
+     */
+    public List<IndexOutputVO> exec(List<IndexInputVO> indexVOS) {
+        this.indexVOS = indexVOS;
+
+        return indexVOS.stream().map(i -> {
+            String indexId = i.getIndexId();
+            List indexValues = i.getIndexValues();
+            BigDecimal weight = i.getWeight();
+            ScoreCalculator scoreCalculator = i.getScoreCalculator();
+
+            List scores4OneIndex = scoreCalculator.normalize(indexValues, weight);
+
+            return new IndexOutputVO(indexId, scores4OneIndex);
+        }).collect(Collectors.toList());
+    }
+
+}

epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/support/normalizing/batch/IndexInputVO.java

@@ -0,0 +1,39 @@
+package com.epmet.support.normalizing.batch;
+
+import com.epmet.support.normalizing.ScoreCalculator;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class IndexInputVO<T> {
+
+    /**
+     * 指标标记，由使用者传入，用以标记该条指标的独有特性，一般用id或者code
+     * 非必填
+     */
+    private String indexId;
+
+    /**
+     * 指标的样本值
+     */
+    private List<T> indexValues;
+
+    /**
+     * 权重
+     */
+    private BigDecimal weight;
+
+    private ScoreCalculator<T> scoreCalculator;
+
+    public IndexInputVO(List<T> indexValues, BigDecimal weight, ScoreCalculator<T> scoreCalculator) {
+        this.indexValues = indexValues;
+        this.weight = weight;
+        this.scoreCalculator = scoreCalculator;
+    }
+}

epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/support/normalizing/batch/IndexOutputVO.java

@@ -0,0 +1,23 @@
+package com.epmet.support.normalizing.batch;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+@Data
+@AllArgsConstructor
+public class IndexOutputVO<T> {
+
+    /**
+     * 指标标记，由使用者传入，用以标记该条指标的独有特性，一般用id或者code
+     * 非必填
+     */
+    private String indexId;
+
+    /**
+     * 指标的样本值
+     */
+    private List<BigDecimal> indexScores;
+}

epmet-module/data-statistical/data-statistical-server/src/test/java/com/epmet/stats/test/normalizing/DemoScoreCal.java

@@ -1,26 +1,29 @@
 package com.epmet.stats.test.normalizing;
 
-import com.epmet.support.normalizing.Correlation;
-import com.epmet.support.normalizing.DoubleScoreCalculator;
-import com.epmet.support.normalizing.IntegerScoreCalculator;
-import com.epmet.support.normalizing.ScoreCalculator;
+import com.epmet.support.normalizing.*;
+import com.epmet.support.normalizing.batch.BatchScoreCalculator;
+import com.epmet.support.normalizing.batch.IndexInputVO;
+import com.epmet.support.normalizing.batch.IndexOutputVO;
+import org.junit.Test;
 
 import java.math.BigDecimal;
 import java.util.Arrays;
+import java.util.List;
 
 public class DemoScoreCal {
 
     public static void main(String[] args) {
         //demoInteger();
-        demoIntegerPartical();
+        //demoIntegerPartical();
         //demoDouble();
     }
 
     /**
      * 整数类型,完整源数据列表的归一算法
      */
-    public static void demoInteger() {
-        Integer[] iArray = {4,8,1,3,2};
+    @Test
+    public void demoInteger() {
+        Integer[] iArray = {4, 8, 1, 3, 2};
         BigDecimal minScore = new BigDecimal(5);
         BigDecimal maxScore = new BigDecimal(10);
 
@@ -32,12 +35,13 @@ public class DemoScoreCal {
     /**
      * 整数类型,基于边界值的部分列表的的归一算法
      */
-    public static void demoIntegerPartical() {
-        Integer[] iArray = {4,1,2};
+    @Test
+    public void demoIntegerPartical() {
+        Integer[] iArray = {4, 1, 8};
         BigDecimal minScore = new BigDecimal(5);
         BigDecimal maxScore = new BigDecimal(10);
 
-        ScoreCalculator sc = new IntegerScoreCalculator(1, 8 ,minScore, maxScore, Correlation.NEGATIVE);
+        ScoreCalculator sc = new IntegerScoreCalculator(1, 8, minScore, maxScore, Correlation.NEGATIVE);
         BigDecimal[] scores = sc.normalize(iArray);// 此处也可以直接使用list参数的重载方法，计算阶段没有任何区别，区别在于new IntegerScoreCalculator()阶段
         Arrays.stream(scores).forEach(s -> System.out.println(s));
     }
@@ -46,7 +50,7 @@ public class DemoScoreCal {
      * double类型归一算法
      */
     public static void demoDouble() {
-        Double[] iArray = {1.9,8.9,1.0,3.0,2.0};
+        Double[] iArray = {1.9, 8.9, 1.0, 3.0, 2.0};
         BigDecimal minScore = new BigDecimal(5);
         BigDecimal maxScore = new BigDecimal(10);
 
@@ -61,6 +65,31 @@ public class DemoScoreCal {
         System.out.println(normalize2);
     }
 
+    /**
+     * 批量计算demo
+     */
+    @Test
+    public void testBatchCalculate() throws InterruptedException {
+        //{4,8,1,3,2}
+
+        // 每个指标需要单独的分支计算器，因为每个指标的最大最小值是不同的
+        ScoreCalculator<Integer> sc1 = new IntegerScoreCalculator(1, 8, ScoreConstants.MIN_SCORE, ScoreConstants.MAX_SCORE, Correlation.NEGATIVE);
+        ScoreCalculator<Integer> sc2 = new IntegerScoreCalculator(1, 8, ScoreConstants.MIN_SCORE, ScoreConstants.MAX_SCORE, Correlation.NEGATIVE);
+
+        // 每个指标的信息，包括样本列表，权重，指标标记
+        IndexInputVO<Integer> index1VO = new IndexInputVO<>("aaa", Arrays.asList(4, 1, 8), new BigDecimal(1), sc1);
+        IndexInputVO<Integer> index2VO = new IndexInputVO<>("bbb", Arrays.asList(1, 8, 3), new BigDecimal(1), sc2);
+
+        List<IndexInputVO> indexInputVOS = Arrays.asList(index1VO, index2VO);
+
+        BatchScoreCalculator batchScoreCalculator = new BatchScoreCalculator();
+        List<IndexOutputVO> result = batchScoreCalculator.exec(indexInputVOS);
+
+        System.err.println("--------------------------------");
+        result.stream().forEach(r -> System.out.println(r));
+        Thread.sleep(10);
+        System.err.println("--------------------------------");
+    }
 
 
 }