pdf generating
This commit is contained in:
parent
10fe7e8a4e
commit
cf9a7f895f
@ -6,7 +6,10 @@ import org.springframework.web.multipart.MultipartFile;
|
||||
import ru.ulstu.file.model.FileData;
|
||||
import ru.ulstu.file.model.FileDataDto;
|
||||
import ru.ulstu.file.repostory.FileRepository;
|
||||
import ru.ulstu.paper.model.PaperDto;
|
||||
|
||||
import java.io.BufferedWriter;
|
||||
import java.io.File;
|
||||
import java.io.IOException;
|
||||
import java.nio.file.Files;
|
||||
import java.nio.file.Path;
|
||||
@ -15,6 +18,7 @@ import java.util.ArrayList;
|
||||
import java.util.Date;
|
||||
import java.util.List;
|
||||
import java.util.UUID;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
import static java.nio.charset.StandardCharsets.UTF_8;
|
||||
|
||||
@ -119,4 +123,24 @@ public class FileService {
|
||||
public FileDataDto createFromMultipartFile(MultipartFile multipartFile) throws IOException {
|
||||
return new FileDataDto(multipartFile.getOriginalFilename(), uploadToTmpDir(multipartFile));
|
||||
}
|
||||
|
||||
public void createLatexAttachs(PaperDto paper) throws IOException {
|
||||
for (FileDataDto fileDataDto : paper.getFiles().stream().filter(f -> f.isLatexAttach() && !f.isDeleted()).collect(Collectors.toList())) {
|
||||
if (fileDataDto.getId() == null) {
|
||||
File oldFile = getTmpFilePath(fileDataDto.getTmpFileName()).toFile();
|
||||
File renamed = getTmpFilePath(fileDataDto.getName()).toFile();
|
||||
oldFile.renameTo(renamed);
|
||||
} else {
|
||||
Files.write(getTmpFilePath(fileDataDto.getName()), fileRepository.findOne(fileDataDto.getId()).getData());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public File createLatexFile(PaperDto paper) throws IOException {
|
||||
BufferedWriter writer = Files.newBufferedWriter(getTmpFilePath(paper.getTitle() + ".tex"));
|
||||
writer.write(paper.getLatexText());
|
||||
writer.close();
|
||||
|
||||
return getTmpFilePath(paper.getTitle() + ".tex").toFile();
|
||||
}
|
||||
}
|
||||
|
@ -1,5 +1,8 @@
|
||||
package ru.ulstu.paper.controller;
|
||||
|
||||
import org.springframework.http.HttpHeaders;
|
||||
import org.springframework.http.HttpStatus;
|
||||
import org.springframework.http.ResponseEntity;
|
||||
import org.springframework.stereotype.Controller;
|
||||
import org.springframework.ui.ModelMap;
|
||||
import org.springframework.validation.Errors;
|
||||
@ -13,16 +16,19 @@ import ru.ulstu.deadline.model.Deadline;
|
||||
import ru.ulstu.paper.model.Paper;
|
||||
import ru.ulstu.paper.model.PaperDto;
|
||||
import ru.ulstu.paper.model.PaperFilterDto;
|
||||
import ru.ulstu.paper.service.LatexService;
|
||||
import ru.ulstu.paper.service.PaperService;
|
||||
import ru.ulstu.user.model.User;
|
||||
|
||||
import javax.validation.Valid;
|
||||
import java.io.IOException;
|
||||
import java.net.URLEncoder;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Calendar;
|
||||
import java.util.List;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
import static java.nio.charset.StandardCharsets.UTF_8;
|
||||
import static org.springframework.util.StringUtils.isEmpty;
|
||||
|
||||
|
||||
@ -30,9 +36,11 @@ import static org.springframework.util.StringUtils.isEmpty;
|
||||
@RequestMapping(value = "/papers")
|
||||
public class PaperController {
|
||||
private final PaperService paperService;
|
||||
private final LatexService latexService;
|
||||
|
||||
public PaperController(PaperService paperService) {
|
||||
public PaperController(PaperService paperService, LatexService latexService) {
|
||||
this.paperService = paperService;
|
||||
this.latexService = latexService;
|
||||
}
|
||||
|
||||
@GetMapping("/papers")
|
||||
@ -109,6 +117,14 @@ public class PaperController {
|
||||
return years;
|
||||
}
|
||||
|
||||
@PostMapping("/generatePdf")
|
||||
public ResponseEntity<byte[]> getPdfFile(PaperDto paper) throws IOException {
|
||||
HttpHeaders headers = new HttpHeaders();
|
||||
headers.add("Content-Disposition", "attachment; filename='" +
|
||||
URLEncoder.encode(paper.getTitle() + ".pdf", UTF_8.toString()) + "'");
|
||||
return new ResponseEntity<>(latexService.generatePdfFromLatexFile(paper), headers, HttpStatus.OK);
|
||||
}
|
||||
|
||||
private void filterEmptyDeadlines(PaperDto paperDto) {
|
||||
paperDto.setDeadlines(paperDto.getDeadlines().stream()
|
||||
.filter(dto -> dto.getDate() != null || !isEmpty(dto.getDescription()))
|
||||
|
33
src/main/java/ru/ulstu/paper/service/LatexService.java
Normal file
33
src/main/java/ru/ulstu/paper/service/LatexService.java
Normal file
@ -0,0 +1,33 @@
|
||||
package ru.ulstu.paper.service;
|
||||
|
||||
import de.nixosoft.jlr.JLRGenerator;
|
||||
import org.springframework.stereotype.Service;
|
||||
import ru.ulstu.file.service.FileService;
|
||||
import ru.ulstu.paper.model.PaperDto;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.IOException;
|
||||
import java.nio.file.Files;
|
||||
|
||||
@Service
|
||||
public class LatexService {
|
||||
private FileService fileService;
|
||||
|
||||
public LatexService(FileService fileService) {
|
||||
this.fileService = fileService;
|
||||
}
|
||||
|
||||
public byte[] generatePdfFromLatexFile(PaperDto paper) throws IOException {
|
||||
fileService.createLatexAttachs(paper);
|
||||
File tex = fileService.createLatexFile(paper);
|
||||
|
||||
File output = new File(tex.getParentFile().getAbsolutePath() + File.separator);
|
||||
JLRGenerator pdfGen = new JLRGenerator();
|
||||
|
||||
if (!pdfGen.generate(tex, output, tex.getParentFile())) {
|
||||
throw new IOException(pdfGen.getErrorMessage());
|
||||
}
|
||||
|
||||
return Files.readAllBytes(pdfGen.getPDF().toPath());
|
||||
}
|
||||
}
|
@ -3,6 +3,7 @@
|
||||
|
||||
var urlFileUpload = "/api/1.0/files/uploadTmpFile";
|
||||
var urlFileDownload = "/api/1.0/files/download/";
|
||||
var urlPdfGenerating = "/papers/generatePdf";
|
||||
var urlFileDownloadTmp = "/api/1.0/files/download-tmp/";
|
||||
|
||||
/* exported MessageTypesEnum */
|
||||
|
@ -20,7 +20,8 @@
|
||||
<hr/>
|
||||
<div class="row">
|
||||
<div class="col-lg-12">
|
||||
<form id="paper-form" method="post" th:action="@{'/papers/paper?id='+ *{id == null ? '' : id} + ''}"
|
||||
<form name="paperform" id="paper-form" method="post"
|
||||
th:action="@{'/papers/paper?id='+ *{id == null ? '' : id} + ''}"
|
||||
th:object="${paperDto}">
|
||||
<div class="row">
|
||||
|
||||
@ -143,6 +144,15 @@
|
||||
|
||||
</div>
|
||||
</div>
|
||||
<div class="form-group">
|
||||
<button id="pdfBtn" class="btn btn-primary text-uppercase"
|
||||
onclick="generatePDF()"
|
||||
type="button">
|
||||
<i id="pdfLoadingIcon" class='fa fa-circle-o-notch fa-spin'
|
||||
style="display: none;"></i>
|
||||
pdf
|
||||
</button>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
@ -325,6 +335,38 @@
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function generatePDF() {
|
||||
$('#pdfLoadingIcon').show();
|
||||
$('#pdfBtn').prop('disabled', true);
|
||||
;
|
||||
|
||||
var formData = new FormData(document.forms.paperform);
|
||||
var xhr = new XMLHttpRequest();
|
||||
xhr.open("POST", urlPdfGenerating);
|
||||
xhr.send(formData);
|
||||
xhr.responseType = 'blob';
|
||||
|
||||
xhr.onload = function () {
|
||||
if (this.status == 200) {
|
||||
console.debug(this.response);
|
||||
var blob = new Blob([this.response], {type: 'application/pdf'});
|
||||
let a = document.createElement("a");
|
||||
a.style = "display: none";
|
||||
document.body.appendChild(a);
|
||||
let url = window.URL.createObjectURL(blob);
|
||||
a.href = url;
|
||||
a.download = $('#title').val() + '.pdf';
|
||||
a.click();
|
||||
window.URL.revokeObjectURL(url);
|
||||
} else {
|
||||
}
|
||||
$('#pdfLoadingIcon').hide();
|
||||
$('#pdfBtn').prop('disabled', false);
|
||||
;
|
||||
}
|
||||
}
|
||||
|
||||
</script>
|
||||
</div>
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user