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refactor(pdf-conversion): modularize PDF/A preflight parsing and improve resource path handling

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- Extracted PDF/A preflight parsing logic into `parsePreflightDocument` for reusability
- Replaced hardcoded ICC resource paths with constants for better maintainability
- Simplified GregorianCalendar conversions by removing redundant `java.util` statement
- Improved exception handling for preflight parsing with detailed error messages

Signed-off-by: Balázs Szücs <bszucs1209@gmail.com>
This commit is contained in:
Balázs Szücs 2025-11-08 16:34:00 +01:00
parent 4514c06838
commit 796f739fde
1 changed files with 20 additions and 22 deletions
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42
app/core/src/main/java/stirling/software/SPDF/controller/api/converters/ConvertPDFToPDFA.java
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@ -184,6 +184,21 @@ public class ConvertPDFToPDFA {
return command;
}
private static PreflightDocument parsePreflightDocument(
PreflightParser parser, Format format, PdfaProfile profile) throws IOException {
try {
return (PreflightDocument)
parser.parse(format, PreflightConfiguration.createPdfA1BConfiguration());
} catch (SyntaxValidationException e) {
throw new IOException(buildPreflightErrorMessage(e.getResult(), profile), e);
} catch (ClassCastException e) {
throw new IOException(
"PDF/A preflight did not produce a PreflightDocument for "
+ profile.getDisplayName(),
e);
}
}
private static void validatePdfaOutput(Path pdfPath, PdfaProfile profile) throws IOException {
Optional<Format> format = profile.preflightFormat();
if (format.isEmpty()) {
@ -194,22 +209,7 @@ public class ConvertPDFToPDFA {
try (RandomAccessRead rar = new RandomAccessReadBufferedFile(pdfPath.toFile())) {
PreflightParser parser = new PreflightParser(rar);
PreflightDocument document;
try {
document =
(PreflightDocument)
parser.parse(
format.get(),
PreflightConfiguration.createPdfA1BConfiguration());
} catch (SyntaxValidationException e) {
throw new IOException(buildPreflightErrorMessage(e.getResult(), profile), e);
} catch (ClassCastException e) {
throw new IOException(
"PDF/A preflight did not produce a PreflightDocument for "
+ profile.getDisplayName(),
e);
}
PreflightDocument document = parsePreflightDocument(parser, format.get(), profile);
if (document == null) {
throw new IOException(
"PDF/A preflight returned no document for " + profile.getDisplayName());
@ -928,8 +928,8 @@ public class ConvertPDFToPDFA {
ZonedDateTime creationZdt = ZonedDateTime.ofInstant(creationInstant, ZoneId.of("UTC"));
// Convert to GregorianCalendar for PDFBox API compatibility
GregorianCalendar creationCal = java.util.GregorianCalendar.from(creationZdt);
GregorianCalendar modificationCal = java.util.GregorianCalendar.from(nowZdt);
GregorianCalendar creationCal = GregorianCalendar.from(creationZdt);
GregorianCalendar modificationCal = GregorianCalendar.from(nowZdt);
docInfo.setCreationDate(creationCal);
xmpBasicSchema.setCreateDate(creationCal);
@ -1152,12 +1152,10 @@ public class ConvertPDFToPDFA {
private void addICCProfileIfNotPresent(PDDocument document) {
if (document.getDocumentCatalog().getOutputIntents().isEmpty()) {
try (InputStream colorProfile = getClass().getResourceAsStream("/icc/sRGB2014.icc")) {
try (InputStream colorProfile = getClass().getResourceAsStream(ICC_RESOURCE_PATH)) {
if (colorProfile == null) {
throw ExceptionUtils.createIllegalArgumentException(
"error.resourceNotFound",
"Resource not found: {0}",
"/icc/sRGB2014.icc");
"error.resourceNotFound", "Resource not found: {0}", ICC_RESOURCE_PATH);
}
PDOutputIntent outputIntent = new PDOutputIntent(document, colorProfile);
outputIntent.setInfo("sRGB IEC61966-2.1");