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CAD格式新增支持 转换成svg tif 格式

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CAD 转换新增 超时结束方法
This commit is contained in:
gaoxiongzaq
2023-07-20 10:54:47 +08:00
parent 778a381b5b
commit 6f8416365f
5 changed files with 100 additions and 18 deletions
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76
server/src/main/java/cn/keking/service/FileHandlerService.java
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@@ -9,12 +9,13 @@ import cn.keking.utils.EncodingDetects;
import cn.keking.utils.KkFileUtils;
import cn.keking.utils.WebUtils;
import cn.keking.web.filter.BaseUrlFilter;
import com.aspose.cad.CodePages;
import com.aspose.cad.Color;
import com.aspose.cad.Image;
import com.aspose.cad.LoadOptions;
import com.aspose.cad.*;
import com.aspose.cad.fileformats.tiff.enums.TiffExpectedFormat;
import com.aspose.cad.imageoptions.CadRasterizationOptions;
import com.aspose.cad.imageoptions.PdfOptions;
import com.aspose.cad.imageoptions.SvgOptions;
import com.aspose.cad.imageoptions.TiffOptions;
import com.aspose.cad.internal.Exceptions.TimeoutException;
import com.itextpdf.text.pdf.PdfReader;
import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.pdfbox.pdmodel.PDDocument;
@@ -38,6 +39,7 @@ import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.*;
import java.util.stream.IntStream;
/**
@@ -52,7 +54,7 @@ public class FileHandlerService {
private final Logger logger = LoggerFactory.getLogger(FileHandlerService.class);
private final String fileDir = ConfigConstants.getFileDir();
private final CacheService cacheService;
private final InterruptionTokenSource source = new com.aspose.cad.InterruptionTokenSource(); //CAD延时
@Value("${server.tomcat.uri-encoding:UTF-8}")
private String uriEncoding;
@@ -143,6 +145,10 @@ public class FileHandlerService {
cacheService.putImgCache(fileKey, imgs);
}
/**
cad定义线程池
*/
private static final ExecutorService pool = Executors.newFixedThreadPool(1);
/**
* 对转换后的文件进行操作(改变编码方式)
*
@@ -297,11 +303,12 @@ public class FileHandlerService {
* @param outputFilePath pdf输出文件路径
* @return 转换是否成功
*/
public String cadToPdf(String inputFilePath, String outputFilePath) throws Exception {
public String cadToPdf(String inputFilePath, String outputFilePath ,String cadPreviewType) throws Exception {
Callable<String> call = () -> {
File outputFile = new File(outputFilePath);
LoadOptions opts = new LoadOptions();
opts.setSpecifiedEncoding(CodePages.SimpChinese);
com.aspose.cad.Image cadImage = Image.load(inputFilePath, opts);
Image cadImage = Image.load(inputFilePath, opts);
CadRasterizationOptions cadRasterizationOptions = new CadRasterizationOptions();
cadRasterizationOptions.setBackgroundColor(Color.getWhite());
cadRasterizationOptions.setPageWidth(1400);
@@ -309,12 +316,40 @@ public class FileHandlerService {
cadRasterizationOptions.setAutomaticLayoutsScaling(true);
cadRasterizationOptions.setNoScaling(false);
cadRasterizationOptions.setDrawType(1);
PdfOptions pdfOptions = new PdfOptions();
pdfOptions.setVectorRasterizationOptions(cadRasterizationOptions);
SvgOptions SvgOptions = null;
PdfOptions pdfOptions = null;
TiffOptions TiffOptions = null;
switch (cadPreviewType) { //新增格式方法
case "svg":
SvgOptions = new SvgOptions();
SvgOptions.setVectorRasterizationOptions(cadRasterizationOptions);
SvgOptions.setInterruptionToken(source.getToken());
break;
case "pdf":
pdfOptions = new PdfOptions();
pdfOptions.setVectorRasterizationOptions(cadRasterizationOptions);
pdfOptions.setInterruptionToken(source.getToken());
break;
case "tif":
TiffOptions = new TiffOptions(TiffExpectedFormat.TiffJpegRgb);
TiffOptions.setVectorRasterizationOptions(cadRasterizationOptions);
TiffOptions.setInterruptionToken(source.getToken());
break;
}
OutputStream stream = null;
try {
stream = new FileOutputStream(outputFile);
cadImage.save(stream, pdfOptions);
switch (cadPreviewType) {
case "svg":
cadImage.save(stream, SvgOptions);
break;
case "pdf":
cadImage.save(stream, pdfOptions);
break;
case "tif":
cadImage.save(stream, TiffOptions);
break;
}
} catch (IOException e) {
logger.error("PDFFileNotFoundException，inputFilePath：{}", inputFilePath, e);
return "null";
@@ -325,6 +360,27 @@ public class FileHandlerService {
if (cadImage != null) { //关闭
cadImage.close();
}
source.interrupt(); //结束任务
source.dispose();
}
return "true";
};
Future<String> result = pool.submit(call);
try {
// 如果在超时时间内，没有数据返回：则抛出TimeoutException异常
result.get(60, TimeUnit.SECONDS);
} catch (InterruptedException e) {
System.out.println("InterruptedException发生");
return "null";
} catch (ExecutionException e) {
System.out.println("ExecutionException发生");
return "null";
} catch (TimeoutException e) {
System.out.println("TimeoutException发生，意味着线程超时报错");
return "null";
} finally {
source.interrupt(); //结束任务
source.dispose();
}
return "true";
}