90 lines
3.4 KiB
Java
90 lines
3.4 KiB
Java
package cn.keking.service;
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import cn.keking.model.FileAttribute;
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import cn.keking.model.FileType;
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import cn.keking.service.cache.CacheService;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.stereotype.Service;
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import org.springframework.ui.ExtendedModelMap;
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import javax.annotation.PostConstruct;
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import java.util.concurrent.TimeUnit;
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/**
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* Created by kl on 2018/1/19.
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* Content :消费队列中的转换文件
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*/
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@Service
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public class FileConvertQueueTask {
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private final Logger logger = LoggerFactory.getLogger(getClass());
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private final FilePreviewFactory previewFactory;
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private final CacheService cacheService;
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private final FileHandlerService fileHandlerService;
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public FileConvertQueueTask(FilePreviewFactory previewFactory, CacheService cacheService, FileHandlerService fileHandlerService) {
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this.previewFactory = previewFactory;
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this.cacheService = cacheService;
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this.fileHandlerService = fileHandlerService;
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}
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@PostConstruct
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public void startTask() {
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new Thread(new ConvertTask(previewFactory, cacheService, fileHandlerService))
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.start();
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logger.info("队列处理文件转换任务启动完成 ");
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}
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static class ConvertTask implements Runnable {
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private final Logger logger = LoggerFactory.getLogger(ConvertTask.class);
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private final FilePreviewFactory previewFactory;
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private final CacheService cacheService;
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private final FileHandlerService fileHandlerService;
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public ConvertTask(FilePreviewFactory previewFactory,
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CacheService cacheService,
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FileHandlerService fileHandlerService) {
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this.previewFactory = previewFactory;
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this.cacheService = cacheService;
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this.fileHandlerService = fileHandlerService;
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}
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@Override
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public void run() {
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while (true) {
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String url = null;
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try {
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url = cacheService.takeQueueTask();
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if (url != null) {
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FileAttribute fileAttribute = fileHandlerService.getFileAttribute(url, null);
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FileType fileType = fileAttribute.getType();
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logger.info("正在处理预览转换任务，url：{}，预览类型：{}", url, fileType);
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if (isNeedConvert(fileType)) {
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FilePreview filePreview = previewFactory.get(fileAttribute);
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filePreview.filePreviewHandle(url, new ExtendedModelMap(), fileAttribute);
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} else {
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logger.info("预览类型无需处理，url：{}，预览类型：{}", url, fileType);
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}
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}
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} catch (Exception e) {
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try {
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TimeUnit.SECONDS.sleep(10);
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} catch (Exception ex) {
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Thread.currentThread().interrupt();
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ex.printStackTrace();
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}
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logger.info("处理预览转换任务异常，url：{}", url, e);
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}
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}
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}
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public boolean isNeedConvert(FileType fileType) {
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return fileType.equals(FileType.COMPRESS) || fileType.equals(FileType.OFFICE) || fileType.equals(FileType.CAD);
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}
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}
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}
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