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This commit is contained in:
Anthony Stirling
2023-12-30 19:11:27 +00:00
parent 7b43fca6fc
commit 5f771b7851
155 changed files with 5539 additions and 4767 deletions
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83
src/main/java/stirling/software/SPDF/controller/api/PdfOverlayController.java
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@@ -1,11 +1,13 @@
package stirling.software.SPDF.controller.api;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.ArrayList;
import org.apache.pdfbox.multipdf.Overlay;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.springframework.http.MediaType;
@@ -18,36 +20,49 @@ import org.springframework.web.multipart.MultipartFile;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import stirling.software.SPDF.model.api.general.OverlayPdfsRequest;
import stirling.software.SPDF.utils.GeneralUtils;
import stirling.software.SPDF.utils.WebResponseUtils;
@RestController
@RequestMapping("/api/v1/general")
@Tag(name = "General", description = "General APIs")
public class PdfOverlayController {
@PostMapping(value = "/overlay-pdfs", consumes = "multipart/form-data")
@Operation(summary = "Overlay PDF files in various modes", description = "Overlay PDF files onto a base PDF with different modes: Sequential, Interleaved, or Fixed Repeat. Input:PDF Output:PDF Type:MIMO")
public ResponseEntity<byte[]> overlayPdfs(@ModelAttribute OverlayPdfsRequest request) throws IOException {
@PostMapping(value = "/overlay-pdfs", consumes = "multipart/form-data")
@Operation(
summary = "Overlay PDF files in various modes",
description =
"Overlay PDF files onto a base PDF with different modes: Sequential, Interleaved, or Fixed Repeat. Input:PDF Output:PDF Type:MIMO")
public ResponseEntity<byte[]> overlayPdfs(@ModelAttribute OverlayPdfsRequest request)
throws IOException {
MultipartFile baseFile = request.getFileInput();
int overlayPos = request.getOverlayPosition();
MultipartFile[] overlayFiles = request.getOverlayFiles();
File[] overlayPdfFiles = new File[overlayFiles.length];
List<File> tempFiles = new ArrayList<>(); // List to keep track of temporary files
try {
try {
for (int i = 0; i < overlayFiles.length; i++) {
overlayPdfFiles[i] = GeneralUtils.multipartToFile(overlayFiles[i]);
}
String mode = request.getOverlayMode(); // "SequentialOverlay", "InterleavedOverlay", "FixedRepeatOverlay"
String mode = request.getOverlayMode(); // "SequentialOverlay", "InterleavedOverlay",
// "FixedRepeatOverlay"
int[] counts = request.getCounts(); // Used for FixedRepeatOverlay mode
try (PDDocument basePdf = PDDocument.load(baseFile.getInputStream());
Overlay overlay = new Overlay()) {
Map<Integer, String> overlayGuide = prepareOverlayGuide(basePdf.getNumberOfPages(), overlayPdfFiles, mode, counts, tempFiles);
Map<Integer, String> overlayGuide =
prepareOverlayGuide(
basePdf.getNumberOfPages(),
overlayPdfFiles,
mode,
counts,
tempFiles);
overlay.setInputPDF(basePdf);
if (overlayPos == 0) {
overlay.setOverlayPosition(Overlay.Position.FOREGROUND);
@@ -58,10 +73,13 @@ public class PdfOverlayController {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
overlay.overlay(overlayGuide).save(outputStream);
byte[] data = outputStream.toByteArray();
String outputFilename = baseFile.getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_overlayed.pdf"; // Remove file extension and append .pdf
return WebResponseUtils.bytesToWebResponse(data, outputFilename, MediaType.APPLICATION_PDF);
}
String outputFilename =
baseFile.getOriginalFilename().replaceFirst("[.][^.]+$", "")
+ "_overlayed.pdf"; // Remove file extension and append .pdf
return WebResponseUtils.bytesToWebResponse(
data, outputFilename, MediaType.APPLICATION_PDF);
}
} finally {
for (File overlayPdfFile : overlayPdfFiles) {
if (overlayPdfFile != null) {
@@ -76,7 +94,9 @@ public class PdfOverlayController {
}
}
private Map<Integer, String> prepareOverlayGuide(int basePageCount, File[] overlayFiles, String mode, int[] counts, List<File> tempFiles) throws IOException {
private Map<Integer, String> prepareOverlayGuide(
int basePageCount, File[] overlayFiles, String mode, int[] counts, List<File> tempFiles)
throws IOException {
Map<Integer, String> overlayGuide = new HashMap<>();
switch (mode) {
case "SequentialOverlay":
@@ -94,12 +114,19 @@ public class PdfOverlayController {
return overlayGuide;
}
private void sequentialOverlay(Map<Integer, String> overlayGuide, File[] overlayFiles, int basePageCount, List<File> tempFiles) throws IOException {
private void sequentialOverlay(
Map<Integer, String> overlayGuide,
File[] overlayFiles,
int basePageCount,
List<File> tempFiles)
throws IOException {
int overlayFileIndex = 0;
int pageCountInCurrentOverlay = 0;
for (int basePageIndex = 1; basePageIndex <= basePageCount; basePageIndex++) {
if (pageCountInCurrentOverlay == 0 || pageCountInCurrentOverlay >= getNumberOfPages(overlayFiles[overlayFileIndex])) {
if (pageCountInCurrentOverlay == 0
|| pageCountInCurrentOverlay
>= getNumberOfPages(overlayFiles[overlayFileIndex])) {
pageCountInCurrentOverlay = 0;
overlayFileIndex = (overlayFileIndex + 1) % overlayFiles.length;
}
@@ -125,13 +152,9 @@ public class PdfOverlayController {
}
}
private void interleavedOverlay(Map<Integer, String> overlayGuide, File[] overlayFiles, int basePageCount) throws IOException {
private void interleavedOverlay(
Map<Integer, String> overlayGuide, File[] overlayFiles, int basePageCount)
throws IOException {
for (int basePageIndex = 1; basePageIndex <= basePageCount; basePageIndex++) {
File overlayFile = overlayFiles[(basePageIndex - 1) % overlayFiles.length];
@@ -145,10 +168,12 @@ public class PdfOverlayController {
}
}
private void fixedRepeatOverlay(Map<Integer, String> overlayGuide, File[] overlayFiles, int[] counts, int basePageCount) throws IOException {
private void fixedRepeatOverlay(
Map<Integer, String> overlayGuide, File[] overlayFiles, int[] counts, int basePageCount)
throws IOException {
if (overlayFiles.length != counts.length) {
throw new IllegalArgumentException("Counts array length must match the number of overlay files");
throw new IllegalArgumentException(
"Counts array length must match the number of overlay files");
}
int currentPage = 1;
for (int i = 0; i < overlayFiles.length; i++) {
@@ -167,7 +192,7 @@ public class PdfOverlayController {
}
}
}
}
// Additional classes like OverlayPdfsRequest, WebResponseUtils, etc. are assumed to be defined elsewhere.
// Additional classes like OverlayPdfsRequest, WebResponseUtils, etc. are assumed to be defined
// elsewhere.