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This commit is contained in:
Anthony Stirling
2023-09-09 00:25:27 +01:00
parent 264969e80c
commit b1fd798a5c
39 changed files with 468 additions and 195 deletions
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32
src/main/java/stirling/software/SPDF/controller/api/RearrangePagesPDFController.java
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@@ -9,6 +9,7 @@ import org.apache.pdfbox.pdmodel.PDPage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RequestPart;
@@ -21,7 +22,8 @@ import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.tags.Tag;
import stirling.software.SPDF.utils.GeneralUtils;
import stirling.software.SPDF.utils.WebResponseUtils;
import stirling.software.SPDF.model.SortTypes;
import stirling.software.SPDF.model.api.general.RearrangePagesRequest;
@RestController
@Tag(name = "General", description = "General APIs")
public class RearrangePagesPDFController {
@@ -51,9 +53,7 @@ public class RearrangePagesPDFController {
}
private enum CustomMode {
REVERSE_ORDER, DUPLEX_SORT, BOOKLET_SORT, SIDE_STITCH_BOOKLET_SORT, ODD_EVEN_SPLIT, REMOVE_FIRST, REMOVE_LAST, REMOVE_FIRST_AND_LAST,
}
private List<Integer> removeFirst(int totalPages) {
if (totalPages <= 1)
@@ -137,9 +137,9 @@ public class RearrangePagesPDFController {
return newPageOrder;
}
private List<Integer> processCustomMode(String customMode, int totalPages) {
private List<Integer> processSortTypes(String sortTypes, int totalPages) {
try {
CustomMode mode = CustomMode.valueOf(customMode.toUpperCase());
SortTypes mode = SortTypes.valueOf(sortTypes.toUpperCase());
switch (mode) {
case REVERSE_ORDER:
return reverseOrder(totalPages);
@@ -168,16 +168,10 @@ public class RearrangePagesPDFController {
@PostMapping(consumes = "multipart/form-data", value = "/rearrange-pages")
@Operation(summary = "Rearrange pages in a PDF file", description = "This endpoint rearranges pages in a given PDF file based on the specified page order or custom mode. Users can provide a page order as a comma-separated list of page numbers or page ranges, or a custom mode. Input:PDF Output:PDF")
public ResponseEntity<byte[]> rearrangePages(
@RequestPart(required = true, value = "fileInput") @Parameter(description = "The input PDF file to rearrange pages") MultipartFile pdfFile,
@RequestParam(required = false, value = "pageOrder") @Parameter(description = "The new page order as a comma-separated list of page numbers, page ranges (e.g., '1,3,5-7'), or functions in the format 'an+b' where 'a' is the multiplier of the page number 'n', and 'b' is a constant (e.g., '2n+1', '3n', '6n-5')") String pageOrder,
@RequestParam(required = false, value = "customMode") @Parameter(schema = @Schema(implementation = CustomMode.class, description = "The custom mode for page rearrangement. "
+ "Valid values are:\n" + "REVERSE_ORDER: Reverses the order of all pages.\n"
+ "DUPLEX_SORT: Sorts pages as if all fronts were scanned then all backs in reverse (1, n, 2, n-1, ...). "
+ "BOOKLET_SORT: Arranges pages for booklet printing (last, first, second, second last, ...).\n"
+ "ODD_EVEN_SPLIT: Splits and arranges pages into odd and even numbered pages.\n"
+ "REMOVE_FIRST: Removes the first page.\n" + "REMOVE_LAST: Removes the last page.\n"
+ "REMOVE_FIRST_AND_LAST: Removes both the first and the last pages.\n")) String customMode) {
public ResponseEntity<byte[]> rearrangePages(@ModelAttribute RearrangePagesRequest request) throws IOException {
MultipartFile pdfFile = request.getFileInput();
String pageOrder = request.getPageNumbers();
String sortType = request.getCustomMode();
try {
// Load the input PDF
PDDocument document = PDDocument.load(pdfFile.getInputStream());
@@ -186,10 +180,10 @@ public class RearrangePagesPDFController {
String[] pageOrderArr = pageOrder != null ? pageOrder.split(",") : new String[0];
int totalPages = document.getNumberOfPages();
System.out.println("pageOrder=" + pageOrder);
System.out.println("customMode length =" + customMode.length());
System.out.println("SortTypes length =" + sortType.length());
List<Integer> newPageOrder;
if (customMode != null && customMode.length() > 0) {
newPageOrder = processCustomMode(customMode, totalPages);
if (sortType != null && sortType.length() > 0) {
newPageOrder = processSortTypes(sortType, totalPages);
} else {
newPageOrder = GeneralUtils.parsePageList(pageOrderArr, totalPages);
}