class PdfStamperImp {
/**
* Gets the PdfLayer objects in an existing document as a Map
* with the names/titles of the layers as keys.
* @return a Map with all the PdfLayers in the document (and the name/title of the layer as key)
* @since 2.1.2
*/
public Map<String, PdfLayer> getPdfLayers() {
if (documentOCG.isEmpty()) {
readOCProperties();
}
HashMap<String, PdfLayer> map = new HashMap<String, PdfLayer>();
PdfLayer layer;
String key;
for (PdfOCG pdfOCG : documentOCG) {
layer = (PdfLayer)pdfOCG;
if (layer.getTitle() == null) {
key = layer.getAsString(PdfName.NAME).toString();
}
else {
key = layer.getTitle();
}
if (map.containsKey(key)) {
int seq = 2;
String tmp = key + "(" + seq + ")";
while (map.containsKey(tmp)) {
seq++;
tmp = key + "(" + seq + ")";
}
key = tmp;
}
map.put(key, layer);
}
return map;
}
}
