读取文件速度

src/main/java/com/aps/service/plan/SceneService.java

@@ -4,6 +4,7 @@ import com.aps.common.util.redis.RedisUtils;
 import com.aps.entity.Algorithm.Chromosome;
 import com.aps.entity.Schedule.SceneChromsome;
 import com.aps.entity.Schedule.SceneDetail;
+import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
@@ -17,11 +18,7 @@ import java.util.List;
 import java.util.stream.Collectors;
 
 /**
- * SceneService.java
- *
- * @author jdt
- * @description 场景保存修改
- * @since 2025-12-01
+ * 场景结果文件读写服务
  */
 @Service
 public class SceneService {
@@ -31,20 +28,15 @@ public class SceneService {
     @Autowired
     private RedisUtils redisUtils;
 
-    // 统一配置 ObjectMapper
     private ObjectMapper createObjectMapper() {
         ObjectMapper objectMapper = new ObjectMapper();
         objectMapper.registerModule(new JavaTimeModule());
         objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
-        objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
-        // 忽略未知属性，防止反序列化时出错
-        objectMapper.configure(com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+        objectMapper.disable(SerializationFeature.INDENT_OUTPUT);
+        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
         return objectMapper;
     }
 
-    /**
-     * 获取文件存储目录
-     */
     private File getResultDirectory() {
         File resultDir = new File("result");
         if (!resultDir.exists()) {
@@ -57,23 +49,20 @@ public class SceneService {
         return resultDir;
     }
 
-    /**
-     * 获取文件路径
-     */
     private File getChromosomeFile(String sceneId) {
         File resultDir = getResultDirectory();
         String fileName = "chromosome_result_" + sceneId + ".json";
         return new File(resultDir, fileName);
     }
 
-    private File getChromosomeFile(String sceneId,String ver) {
+    private File getChromosomeFile(String sceneId, String version) {
         File resultDir = getResultDirectory();
-        String fileName = "chromosome_result_" + sceneId +"_"+ver+"_.json";
+        String fileName = "chromosome_result_" + sceneId + "_" + version + "_.json";
         return new File(resultDir, fileName);
     }
 
     /**
-     * 从文件中读取Chromosome对象
+     * 从文件中读取 Chromosome 对象，并拆分文件读取与反序列化耗时。
      */
     public Chromosome loadChromosomeFromFile(String sceneId) {
         if (sceneId == null || sceneId.trim().isEmpty()) {
@@ -82,41 +71,51 @@ public class SceneService {
         }
 
         try {
+            long totalStart = System.nanoTime();
             ObjectMapper objectMapper = createObjectMapper();
-            SceneChromsome sceneChromsome=(SceneChromsome)redisUtils.get("SceneId."+sceneId);
+            SceneChromsome sceneChromsome = (SceneChromsome) redisUtils.get("SceneId." + sceneId);
             File file;
-            if(sceneChromsome==null) {
-                 file = getChromosomeFile(sceneId);
-            }else {
-                 file = getChromosomeFile(sceneId,sceneChromsome.getVersion().toString());
+            if (sceneChromsome == null) {
+                file = getChromosomeFile(sceneId);
+            } else {
+                file = getChromosomeFile(sceneId, sceneChromsome.getVersion().toString());
             }
 
-
             if (!file.exists()) {
                 logger.warn("染色体文件不存在: {}", file.getAbsolutePath());
                 return null;
             }
 
-            if (file.length() == 0) {
+            long fileSize = file.length();
+            if (fileSize == 0) {
                 logger.warn("染色体文件为空: {}", file.getAbsolutePath());
                 return null;
             }
 
-            logger.info("正在从文件加载染色体: {}", file.getAbsolutePath());
-            Chromosome chromosome = objectMapper.readValue(file, Chromosome.class);
-            logger.info("染色体加载成功，场景ID: {}", sceneId);
+            logger.info("正在从文件加载染色体: {}, sceneId={}, fileSize={} bytes",
+                    file.getAbsolutePath(), sceneId, fileSize);
 
-            return chromosome;
+            long fileReadStart = System.nanoTime();
+            byte[] fileBytes = Files.readAllBytes(file.toPath());
+            long fileReadMs = (System.nanoTime() - fileReadStart) / 1_000_000;
+
+            long deserializeStart = System.nanoTime();
+            Chromosome chromosome = objectMapper.readValue(fileBytes, Chromosome.class);
+            long deserializeMs = (System.nanoTime() - deserializeStart) / 1_000_000;
+            long totalMs = (System.nanoTime() - totalStart) / 1_000_000;
 
+            logger.info("染色体加载成功，场景ID: {}, fileSize={} bytes, fileRead={} ms, deserialize={} ms, total={} ms",
+                    sceneId, fileSize, fileReadMs, deserializeMs, totalMs);
+
+            return chromosome;
         } catch (Exception e) {
-            // 正确的错误日志写法
             logger.error("加载染色体文件失败，场景ID: " + sceneId, e);
             throw new RuntimeException("加载染色体文件失败: " + e.getMessage(), e);
         }
     }
 
     /**
-     * 将染色体结果保存到JSON文件
+     * 将染色体结果保存到 JSON 文件
      */
     public boolean saveChromosomeToFile(Chromosome chromosome, String sceneId) {
         if (chromosome == null) {
@@ -132,45 +131,35 @@ public class SceneService {
         try {
             ObjectMapper objectMapper = createObjectMapper();
 
-            SceneChromsome sceneChromsome=(SceneChromsome)redisUtils.get("SceneId."+sceneId);
-            if(sceneChromsome==null)
-            {
-                sceneChromsome=new SceneChromsome();
+            SceneChromsome sceneChromsome = (SceneChromsome) redisUtils.get("SceneId." + sceneId);
+            if (sceneChromsome == null) {
+                sceneChromsome = new SceneChromsome();
                 sceneChromsome.setSceneID(sceneId);
                 sceneChromsome.setVersion(1);
-            }else {
-                Integer v = sceneChromsome.getVersion();
-                // 回退后编辑，会清除后续版本，重新生成
-                List<SceneDetail> nexts= sceneChromsome.getSceneDetails().stream()
-                        .filter(t -> t.getVersion() > v)
+            } else {
+                Integer currentVersion = sceneChromsome.getVersion();
+                List<SceneDetail> nextVersions = sceneChromsome.getSceneDetails().stream()
+                        .filter(detail -> detail.getVersion() > currentVersion)
                         .collect(Collectors.toList());
-                if(nexts!=null&&nexts.size()>0)
-                {
-                    for (SceneDetail d:nexts) {
-                        File file1 = getChromosomeFile(sceneId,d.getVersion().toString());
-
-                        Files.deleteIfExists(file1.toPath());
+                if (!nextVersions.isEmpty()) {
+                    for (SceneDetail detail : nextVersions) {
+                        File nextFile = getChromosomeFile(sceneId, detail.getVersion().toString());
+                        Files.deleteIfExists(nextFile.toPath());
                     }
                 }
-                sceneChromsome.getSceneDetails().removeIf(t -> t.getVersion() > v);
-
+                sceneChromsome.getSceneDetails().removeIf(detail -> detail.getVersion() > currentVersion);
                 sceneChromsome.setVersion(sceneChromsome.getVersion() + 1);
-
             }
 
-            SceneDetail sceneDetail=new SceneDetail();
+            SceneDetail sceneDetail = new SceneDetail();
             sceneDetail.setVersion(sceneChromsome.getVersion());
             sceneChromsome.getSceneDetails().add(sceneDetail);
+            redisUtils.set("SceneId." + sceneId, sceneChromsome);
 
-
-            redisUtils.set("SceneId."+sceneId,sceneChromsome);
-
-            File file = getChromosomeFile(sceneId,sceneChromsome.getVersion().toString());
-
+            File file = getChromosomeFile(sceneId, sceneChromsome.getVersion().toString());
             File tempFile = new File(file.getParentFile(), file.getName() + ".tmp");
 
             chromosome.setVersion(sceneChromsome.getVersion());
-
             objectMapper.writeValue(tempFile, chromosome);
 
             if (tempFile.length() == 0) {
@@ -179,7 +168,6 @@ public class SceneService {
                 return false;
             }
 
-            // 验证文件内容
             try {
                 Chromosome verifyChromosome = objectMapper.readValue(tempFile, Chromosome.class);
                 if (verifyChromosome == null) {
@@ -191,7 +179,6 @@ public class SceneService {
                 return false;
             }
 
-            // 替换原文件
             if (file.exists()) {
                 Files.deleteIfExists(file.toPath());
             }
@@ -199,78 +186,56 @@ public class SceneService {
 
             logger.info("染色体保存成功，场景ID: {}, 文件: {}", sceneId, file.getAbsolutePath());
             return true;
-
         } catch (Exception e) {
             logger.error("保存染色体文件失败，场景ID: " + sceneId, e);
             return false;
         }
     }
-    public SceneChromsome getSceneChromsome(String sceneId) {
-        SceneChromsome sceneChromsome=(SceneChromsome)redisUtils.get("SceneId."+sceneId);
 
-        return sceneChromsome;
+    public SceneChromsome getSceneChromsome(String sceneId) {
+        return (SceneChromsome) redisUtils.get("SceneId." + sceneId);
     }
-    public Chromosome moveChromosome(String sceneId,Integer version)
-    {
-
-        SceneChromsome sceneChromsome=(SceneChromsome)redisUtils.get("SceneId."+sceneId);
-        if(sceneChromsome==null) {
-            return  null;
-        }else {
-
-            int prevVersion = sceneChromsome.getVersion() - 1;
-            if (prevVersion == 0) {
-                throw new RuntimeException("无法撤销，当前已是第一个版本");
-            }
-            sceneChromsome.setVersion(prevVersion);
-            redisUtils.set("SceneId."+sceneId,sceneChromsome);
-            Chromosome chromosome = loadChromosomeFromFile(sceneId);
-
-            if (chromosome == null) {
-                sceneChromsome.setVersion(sceneChromsome.getVersion() + 1);
-                redisUtils.set("SceneId."+sceneId,sceneChromsome);
-                throw new RuntimeException("撤销操作失败，未找到上一个版本");
-
-            }
-            return chromosome;
 
+    public Chromosome moveChromosome(String sceneId, Integer version) {
+        SceneChromsome sceneChromsome = (SceneChromsome) redisUtils.get("SceneId." + sceneId);
+        if (sceneChromsome == null) {
+            return null;
         }
 
+        int previousVersion = sceneChromsome.getVersion() - 1;
+        if (previousVersion == 0) {
+            throw new RuntimeException("无法撤销，当前已经是第一个版本");
+        }
 
+        sceneChromsome.setVersion(previousVersion);
+        redisUtils.set("SceneId." + sceneId, sceneChromsome);
+        Chromosome chromosome = loadChromosomeFromFile(sceneId);
+        if (chromosome == null) {
+            sceneChromsome.setVersion(sceneChromsome.getVersion() + 1);
+            redisUtils.set("SceneId." + sceneId, sceneChromsome);
+            throw new RuntimeException("撤销操作失败，未找到上一个版本");
+        }
+        return chromosome;
     }
 
+    public Chromosome revertVersion(String sceneId, Integer version) {
+        SceneChromsome sceneChromsome = (SceneChromsome) redisUtils.get("SceneId." + sceneId);
+        if (sceneChromsome == null) {
+            return null;
+        }
 
-
-
-    public Chromosome revertVersion(String sceneId,Integer version)
-    {
-
-        SceneChromsome sceneChromsome=(SceneChromsome)redisUtils.get("SceneId."+sceneId);
         Integer currentVersion = sceneChromsome.getVersion();
-        if(sceneChromsome==null) {
-            return  null;
-        }else {
-
-            sceneChromsome.setVersion(version);
-            redisUtils.set("SceneId."+sceneId,sceneChromsome);
-            Chromosome chromosome = loadChromosomeFromFile(sceneId);
-
-            if (chromosome == null) {
-                sceneChromsome.setVersion(currentVersion);
-                redisUtils.set("SceneId."+sceneId,sceneChromsome);
-                throw new RuntimeException("撤销操作失败，未找到上一版本");
-
-            }
-            return chromosome;
-
+        sceneChromsome.setVersion(version);
+        redisUtils.set("SceneId." + sceneId, sceneChromsome);
+        Chromosome chromosome = loadChromosomeFromFile(sceneId);
+        if (chromosome == null) {
+            sceneChromsome.setVersion(currentVersion);
+            redisUtils.set("SceneId." + sceneId, sceneChromsome);
+            throw new RuntimeException("恢复版本失败，未找到对应版本");
         }
-
-
+        return chromosome;
     }
 
-
-
-
     /**
      * 检查染色体文件是否存在
      */
@@ -278,12 +243,12 @@ public class SceneService {
         if (sceneId == null || sceneId.trim().isEmpty()) {
             return false;
         }
-        SceneChromsome sceneChromsome=(SceneChromsome)redisUtils.get("SceneId."+sceneId);
+        SceneChromsome sceneChromsome = (SceneChromsome) redisUtils.get("SceneId." + sceneId);
         File file;
-        if(sceneChromsome==null) {
+        if (sceneChromsome == null) {
             file = getChromosomeFile(sceneId);
-        }else {
-            file = getChromosomeFile(sceneId,sceneChromsome.getVersion().toString());
+        } else {
+            file = getChromosomeFile(sceneId, sceneChromsome.getVersion().toString());
         }
         return file.exists() && file.length() > 0;
     }
@@ -293,11 +258,9 @@ public class SceneService {
      */
     public boolean deleteChromosomeFile(String sceneId) {
         try {
-
-
-            SceneChromsome sceneChromsome=(SceneChromsome)redisUtils.get("SceneId."+sceneId);
+            SceneChromsome sceneChromsome = (SceneChromsome) redisUtils.get("SceneId." + sceneId);
             File file;
-            if(sceneChromsome==null) {
+            if (sceneChromsome == null) {
                 file = getChromosomeFile(sceneId);
                 if (file.exists()) {
                     boolean deleted = Files.deleteIfExists(file.toPath());
@@ -305,22 +268,20 @@ public class SceneService {
                         logger.info("删除染色体文件成功: {}", file.getAbsolutePath());
                     }
                 }
-            }else {
-                for (SceneDetail d:sceneChromsome.getSceneDetails()) {
-                    file = getChromosomeFile(sceneId,d.getVersion().toString());
+            } else {
+                for (SceneDetail detail : sceneChromsome.getSceneDetails()) {
+                    file = getChromosomeFile(sceneId, detail.getVersion().toString());
                     if (file.exists()) {
                         boolean deleted = Files.deleteIfExists(file.toPath());
                         if (deleted) {
                             logger.info("删除染色体文件成功: {}", file.getAbsolutePath());
                         }
-
                     }
                 }
             }
 
-            // 删除Redis中的场景信息
-            redisUtils.del("SceneId."+sceneId);
-            logger.info("删除Redis场景信息成功: {}", "SceneId."+sceneId);
+            redisUtils.del("SceneId." + sceneId);
+            logger.info("删除Redis场景信息成功: {}", "SceneId." + sceneId);
 
             return true;
         } catch (Exception e) {
@@ -331,8 +292,6 @@ public class SceneService {
 
     /**
      * 清理历史版本的排产结果文件，只保留当前版本
-     * @param sceneId 场景ID
-     * @return 是否清理成功
      */
     public boolean cleanupHistoricalVersions(String sceneId) {
         try {
@@ -355,12 +314,11 @@ public class SceneService {
                 for (SceneDetail detail : sceneDetails) {
                     Integer version = detail.getVersion();
                     if (version < currentVersion) {
-                        // 删除历史版本的文件
                         File file = getChromosomeFile(sceneId, version.toString());
                         if (file.exists()) {
                             boolean deleted = Files.deleteIfExists(file.toPath());
                             if (deleted) {
-                                logger.info("删除历史版本排产结果文件成功: {}，版本: {}", file.getAbsolutePath(), version);
+                                logger.info("删除历史版本排产结果文件成功: {}, 版本: {}", file.getAbsolutePath(), version);
                             }
                         }
                     }
@@ -374,8 +332,4 @@ public class SceneService {
             return false;
         }
     }
-
-
-
-
 }