Add new methods

Author: MaximPlusov

pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDAnnot.java

@@ -211,6 +211,14 @@ public String getAP() {
 		return this.ap;
 	}
 
+	@Override
+	public Boolean getcontainsAppearances() {
+		if (this.appearance == null) {
+			parseAppearance();
+		}
+		return !this.appearance.isEmpty();
+	}
+
 	@Override
 	public Long getF() {
 		return isFKeyPresent ? Long.valueOf(this.annotationFlag) : null;
@@ -292,7 +300,22 @@ public String getstructParentObjectKey() {
 		return null;
 	}
 
-	private List<CosLang> getLang() {
+	@Override
+	public Boolean getcontainsLang() {
+		return getLang() != null;
+	}
+
+	private List<CosLang> getLinkLang() {
+		String lang = getLang();
+		if (lang != null) {
+			List<CosLang> list = new ArrayList<>(MAX_NUMBER_OF_ELEMENTS);
+			list.add(new PBCosLang(new COSString(lang)));
+			return Collections.unmodifiableList(list);
+		}
+		return Collections.emptyList();
+	}
+
+	private String getLang() {
 		PDStructureTreeRoot structTreeRoot = this.document.getDocumentCatalog().getStructureTreeRoot();
 		int structParent = ((PDAnnotation) this.simplePDObject).getStructParent();
 		if (structTreeRoot != null && structParent != 0) {
@@ -302,18 +325,13 @@ private List<CosLang> getLang() {
 				PDParentTreeValue treeValue = parentTreeRoot == null ? null : (PDParentTreeValue) parentTreeRoot.getValue(structParent);
 				structureElement = treeValue == null ? null : treeValue.getCOSObject();
 			} catch (IOException e) {
-				return Collections.emptyList();
+				return null;
 			}
 			if (structureElement instanceof COSDictionary) {
-				String lang = ((COSDictionary) structureElement).getNameAsString(COSName.LANG);
-				if (lang != null) {
-					List<CosLang> list = new ArrayList<>(MAX_NUMBER_OF_ELEMENTS);
-					list.add(new PBCosLang(new COSString(lang)));
-					return Collections.unmodifiableList(list);
-				}
+				return ((COSDictionary) structureElement).getNameAsString(COSName.LANG);
 			}
 		}
-		return Collections.emptyList();
+		return null;
 	}
 
 	@Override
@@ -373,7 +391,7 @@ public List<? extends Object> getLinkedObjects(String link) {
 		case APPEARANCE:
 			return this.getAppearance();
 		case LANG:
-			return this.getLang();
+			return this.getLinkLang();
 		case BM:
 			return this.getBM();
 		default:

pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDDocument.java

@@ -327,6 +327,17 @@ private List<PDPerms> getPerms() {
 		return Collections.emptyList();
 	}
 
+	@Override
+	public Boolean getcontainsMetadata() {
+		org.apache.pdfbox.pdmodel.common.PDMetadata meta = this.catalog != null ? this.catalog.getMetadata() : null;
+		return meta != null && PBoxPDMetadata.isMetadataObject(meta.getCOSObject());
+	}
+
+	@Override
+	public Boolean getcontainsStructTreeRoot() {
+		return this.catalog != null && this.catalog.getStructureTreeRoot() != null;
+	}
+
 	@Override
 	public Boolean getcontainsAlternatePresentations() {
 		if (this.catalog != null) {
@@ -371,5 +382,10 @@ private List<CosLang> getLang() {
 		}
 		return Collections.emptyList();
 	}
+	
+	@Override
+	public Boolean getcontainsLang() {
+		return this.catalog != null && catalog.getCOSObject().getDictionaryObject(COSName.LANG) instanceof COSString;
+	}
 
 }

pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDFormField.java

@@ -67,6 +67,11 @@ public Boolean getcontainsAA() {
                 ((COSDictionary) pageObject).containsKey(COSName.AA);
     }
 
+    @Override
+    public Boolean getcontainsLang() {
+        return false;
+    }
+
     @Override
     public String getTU() {
         return null;

pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDPage.java

@@ -126,7 +126,7 @@ public Boolean getcontainsTransparency() {
 			parseContentStream();
 		}
 		if (this.annotations == null) {
-			this.annotations = parseAnnotataions();
+			this.annotations = parseAnnotations();
 		}
 		return Boolean.valueOf(this.containsTransparency);
 	}
@@ -304,13 +304,22 @@ private List<PDAdditionalActions> getActions() {
 
 	private List<PDAnnot> getAnnotations() {
 		if (this.annotations == null) {
-			this.annotations = parseAnnotataions();
+			this.annotations = parseAnnotations();
 		}
 
 		return this.annotations;
 	}
 
-	private List<PDAnnot> parseAnnotataions() {
+	@Override
+	public Boolean getcontainsAnnotations() {
+		if (this.annotations == null) {
+			this.annotations = parseAnnotations();
+		}
+
+		return !this.annotations.isEmpty();
+	}
+
+	private List<PDAnnot> parseAnnotations() {
 		try {
 			List<PDAnnotation> pdfboxAnnotations = ((org.apache.pdfbox.pdmodel.PDPage) this.simplePDObject)
 					.getAnnotations();

pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/PBoxPDStructElem.java

@@ -163,6 +163,12 @@ public String getstandardType() {
 		return null;
 	}
 
+	@Override
+	public Boolean getcontainsLang() {
+		COSBase baseLang = ((COSDictionary) this.simplePDObject).getDictionaryObject(COSName.LANG);
+		return baseLang instanceof COSString;
+	}
+
 	@Override
 	public String getparentLang() {
 		COSDictionary parentDict = (COSDictionary)((COSDictionary) this.simplePDObject).getDictionaryObject(COSName.P);

pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/font/PBoxPDCMap.java

@@ -63,6 +63,11 @@ public String getCMapName() {
 		return this.cMap.getName();
 	}
 
+    @Override
+    public Boolean getcontainsEmbeddedFile() {
+        return this.simplePDObject instanceof COSStream;
+    }
+
     @Override
     public List<? extends Object> getLinkedObjects(String link) {
         switch (link) {

pdfbox-validation-model/src/main/java/org/verapdf/model/impl/pb/pd/font/PBoxPDFont.java

@@ -133,11 +133,22 @@ public List<? extends Object> getLinkedObjects(String link) {
 	}
 
 	private List<FontProgram> getFontFile() {
+		FontProgram fontProgram = getFontProgram();
+		if (fontProgram != null) {
+			return PBoxPDFont.getFontProgramList(fontProgram);
+		}
+		return Collections.emptyList();
+	}
+
+	@Override
+	public Boolean getcontainsFontFile() {
+		return getFontProgram() != null;
+	}
+	
+	private FontProgram getFontProgram() {
 		if (!getSubtype().equals(FontFactory.TYPE_3) && (this.pdFontLike.isEmbedded())) {
 			if (getSubtype().equals(FontFactory.TRUE_TYPE)) {
-				PBoxTrueTypeFontProgram trueTypeFontProgram = new PBoxTrueTypeFontProgram(
-						((PDTrueTypeFont) this.pdFontLike).getTrueTypeFont(), getisSymbolic());
-				return PBoxPDFont.getFontProgramList(trueTypeFontProgram);
+				return new PBoxTrueTypeFontProgram(((PDTrueTypeFont) this.pdFontLike).getTrueTypeFont(), getisSymbolic());
 			}
 			PDFontDescriptor fontDescriptor = pdFontLike.getFontDescriptor();
 			PDStream fontFile;
@@ -153,10 +164,10 @@ private List<FontProgram> getFontFile() {
 				fontFile = fontDescriptor.getFontFile3();
 			}
 			if (fontFile != null) {
-				return PBoxPDFont.getFontProgramList(new PBoxFontProgram(fontFile));
+				return new PBoxFontProgram(fontFile);
 			}
 		}
-		return Collections.emptyList();
+		return null;
 	}
 
 	private static List<FontProgram> getFontProgramList(FontProgram fontProgram) {