缓存及队列实现抽象，提供JDK和REDIS两种实现

jodconverter-web/src/main/java/cn/keking/service/FileConverQueueTask.java

@@ -2,9 +2,8 @@ package cn.keking.service;
 
 import cn.keking.model.FileAttribute;
 import cn.keking.model.FileType;
+import cn.keking.service.cache.CacheService;
 import cn.keking.utils.FileUtils;
-import org.redisson.api.RBlockingQueue;
-import org.redisson.api.RedissonClient;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -28,7 +27,7 @@ public class FileConverQueueTask {
     FilePreviewFactory previewFactory;
 
     @Autowired
-    RedissonClient redissonClient;
+    CacheService cacheService;
 
     @Autowired
     FileUtils fileUtils;
@@ -36,7 +35,7 @@ public class FileConverQueueTask {
     @PostConstruct
     public void startTask(){
         ExecutorService executorService = Executors.newFixedThreadPool(3);
-        executorService.submit(new ConverTask(previewFactory,redissonClient,fileUtils));
+        executorService.submit(new ConverTask(previewFactory,cacheService,fileUtils));
         logger.info("队列处理文件转换任务启动完成 ");
     }
 
@@ -44,13 +43,13 @@ public class FileConverQueueTask {
 
         FilePreviewFactory previewFactory;
 
-        RedissonClient redissonClient;
+        CacheService cacheService;
 
         FileUtils fileUtils;
 
-        public ConverTask(FilePreviewFactory previewFactory, RedissonClient redissonClient,FileUtils fileUtils) {
+        public ConverTask(FilePreviewFactory previewFactory, CacheService cacheService,FileUtils fileUtils) {
             this.previewFactory = previewFactory;
-            this.redissonClient = redissonClient;
+            this.cacheService = cacheService;
             this.fileUtils=fileUtils;
         }
 
@@ -58,8 +57,7 @@ public class FileConverQueueTask {
         public void run() {
             while (true) {
                 try {
-                    final RBlockingQueue<String> queue = redissonClient.getBlockingQueue(FileConverQueueTask.queueTaskName);
-                    String url = queue.take();
+                    String url = cacheService.takeQueueTask();
                     if(url!=null){
                         FileAttribute fileAttribute=fileUtils.getFileAttribute(url);
                         logger.info("正在处理转换任务，文件名称【{}】",fileAttribute.getName());

jodconverter-web/src/main/java/cn/keking/service/cache/CacheService.java

@@ -0,0 +1,29 @@
+package cn.keking.service.cache;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @auther: chenjh
+ * @time: 2019/4/2 16:45
+ * @description
+ */
+public interface CacheService {
+    final String REDIS_FILE_PREVIEW_PDF_KEY = "converted-preview-pdf-file";
+    final String REDIS_FILE_PREVIEW_IMGS_KEY = "converted-preview-imgs-file";//压缩包内图片文件集合
+
+    final Integer DEFAULT_PDF_CAPACITY = 500000;
+    final Integer DEFAULT_IMG_CAPACITY = 500000;
+
+    void initPDFCachePool(Integer capacity);
+    void initIMGCachePool(Integer capacity);
+    void putPDFCache(String key, String value);
+    void putImgCache(String key, List<String> value);
+    Map<String, String> getPDFCache();
+    String getPDFCache(String key);
+    Map<String, List<String>> getImgCache();
+    List<String> getImgCache(String key);
+
+    void addQueueTask(String url);
+    String takeQueueTask() throws InterruptedException;
+}

jodconverter-web/src/main/java/cn/keking/service/cache/impl/CacheServiceJDKImpl.java

@@ -0,0 +1,102 @@
+package cn.keking.service.cache.impl;
+
+import cn.keking.service.cache.CacheService;
+import com.googlecode.concurrentlinkedhashmap.ConcurrentLinkedHashMap;
+import com.googlecode.concurrentlinkedhashmap.Weighers;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.BlockingQueue;
+
+/**
+ * @auther: chenjh
+ * @time: 2019/4/2 17:21
+ * @description
+ */
+@Service
+@ConditionalOnExpression("'${cache.type:default}'.equals('default')")
+public class CacheServiceJDKImpl implements CacheService {
+
+    private Map<String, String> pdfCache;
+
+    private Map<String, List<String>> imgCache;
+
+    private static final int QUEUE_SIZE = 500000;
+
+    private BlockingQueue blockingQueue = new ArrayBlockingQueue(QUEUE_SIZE);
+
+    @Override
+    public void initPDFCachePool(Integer capacity) {
+        pdfCache = new ConcurrentLinkedHashMap.Builder<String, String>()
+                .maximumWeightedCapacity(capacity).weigher(Weighers.singleton())
+                .build();
+    }
+
+    @Override
+    public void initIMGCachePool(Integer capacity) {
+        imgCache = new ConcurrentLinkedHashMap.Builder<String, List<String>>()
+                .maximumWeightedCapacity(capacity).weigher(Weighers.singleton())
+                .build();
+    }
+
+    @Override
+    public void putPDFCache(String key, String value) {
+        if (pdfCache == null) {
+            initPDFCachePool(CacheService.DEFAULT_PDF_CAPACITY);
+        }
+        pdfCache.put(key, value);
+    }
+
+    @Override
+    public void putImgCache(String key, List<String> value) {
+        if (imgCache == null) {
+            initIMGCachePool(CacheService.DEFAULT_IMG_CAPACITY);
+        }
+        imgCache.put(key, value);
+    }
+
+    @Override
+    public Map<String, String> getPDFCache() {
+        if (pdfCache == null) {
+            initPDFCachePool(CacheService.DEFAULT_PDF_CAPACITY);
+        }
+        return pdfCache;
+    }
+
+    @Override
+    public String getPDFCache(String key) {
+        if (pdfCache == null) {
+            initPDFCachePool(CacheService.DEFAULT_PDF_CAPACITY);
+        }
+        return pdfCache.get(key);
+    }
+
+    @Override
+    public Map<String, List<String>> getImgCache() {
+        if (imgCache == null) {
+            initPDFCachePool(CacheService.DEFAULT_IMG_CAPACITY);
+        }
+        return imgCache;
+    }
+
+    @Override
+    public List<String> getImgCache(String key) {
+        if (imgCache == null) {
+            initPDFCachePool(CacheService.DEFAULT_IMG_CAPACITY);
+        }
+        return imgCache.get(key);
+    }
+
+    @Override
+    public void addQueueTask(String url) {
+        blockingQueue.add(url);
+    }
+
+    @Override
+    public String takeQueueTask() throws InterruptedException {
+        return String.valueOf(blockingQueue.take());
+    }
+}

jodconverter-web/src/main/java/cn/keking/service/cache/impl/CacheServiceRedisImpl.java

@@ -0,0 +1,91 @@
+package cn.keking.service.cache.impl;
+
+import cn.keking.service.FileConverQueueTask;
+import cn.keking.service.cache.CacheService;
+import org.redisson.Redisson;
+import org.redisson.api.RBlockingQueue;
+import org.redisson.api.RMapCache;
+import org.redisson.api.RedissonClient;
+import org.redisson.config.Config;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @auther: chenjh
+ * @time: 2019/4/2 18:02
+ * @description
+ */
+@ConditionalOnExpression("'${cache.type:default}'.equals('redis')")
+@Service
+public class CacheServiceRedisImpl implements CacheService {
+
+    private Config config;
+
+    @Autowired
+    public CacheServiceRedisImpl(Config config) {
+        this.config = config;
+        this.redissonClient = Redisson.create(config);
+    }
+
+    private RedissonClient redissonClient;
+
+    @Override
+    public void initPDFCachePool(Integer capacity) {
+
+    }
+
+    @Override
+    public void initIMGCachePool(Integer capacity) {
+
+    }
+
+    @Override
+    public void putPDFCache(String key, String value) {
+        RMapCache<String, String> convertedList = redissonClient.getMapCache(REDIS_FILE_PREVIEW_PDF_KEY);
+        convertedList.fastPut(key, value);
+    }
+
+    @Override
+    public void putImgCache(String key, List<String> value) {
+        RMapCache<String, List<String>> convertedList = redissonClient.getMapCache(REDIS_FILE_PREVIEW_IMGS_KEY);
+        convertedList.fastPut(key, value);
+    }
+
+    @Override
+    public Map<String, String> getPDFCache() {
+        return redissonClient.getMapCache(REDIS_FILE_PREVIEW_PDF_KEY);
+    }
+
+    @Override
+    public String getPDFCache(String key) {
+        RMapCache<String, String> convertedList = redissonClient.getMapCache(REDIS_FILE_PREVIEW_PDF_KEY);
+        return convertedList.get(key);
+    }
+
+    @Override
+    public Map<String, List<String>> getImgCache() {
+        return redissonClient.getMapCache(REDIS_FILE_PREVIEW_IMGS_KEY);
+    }
+
+    @Override
+    public List<String> getImgCache(String key) {
+        RMapCache<String, List<String>> convertedList = redissonClient.getMapCache(REDIS_FILE_PREVIEW_IMGS_KEY);
+        return convertedList.get(key);
+    }
+
+    @Override
+    public void addQueueTask(String url) {
+        RBlockingQueue<String> queue = redissonClient.getBlockingQueue(FileConverQueueTask.queueTaskName);
+        queue.addAsync(url);
+    }
+
+    @Override
+    public String takeQueueTask() throws InterruptedException {
+        RBlockingQueue<String> queue = redissonClient.getBlockingQueue(FileConverQueueTask.queueTaskName);
+        return queue.take();
+    }
+}