/// <summary>
/// Loads the content of a PDF file and counts the length of the paragraphs.
/// </summary>
/// <param name="path">The file path.</param>
public Document(string path) : base(path)
{
//Check pre-conditions
if (!System.IO.Path.GetExtension(path).ToLower().Equals(".pdf"))
{
throw new Exceptions.FileExtensionNotAllowed();
}
//Init object attributes.
Lengths = new Dictionary <float, int>();
//Read PDF file and sotre each word appearence inside its paragraph.
using (PdfReader reader = new PdfReader(path))
{
Utils.TextAsParagraphsExtractionStrategy paragraphReader = new Utils.TextAsParagraphsExtractionStrategy();
for (int i = 1; i <= reader.NumberOfPages; i++)
{
PdfTextExtractor.GetTextFromPage(reader, i, paragraphReader);
}
//All the paragraph data is stored inside the paragraphReader (for all the pages).
foreach (string paragraph in paragraphReader.Paragraphs)
{
if (!Lengths.ContainsKey(paragraph.Length))
{
Lengths.Add(paragraph.Length, 0);
}
Lengths[paragraph.Length] += 1;
}
}
}
/// <summary>
/// Loads the content of a PDF file and counts how many words and how many times appears on each paragraph within the document.
/// </summary>
/// <param name="path">The file path.</param>
public Document(string path) : base(path)
{
//Check pre-conditions
if (!System.IO.Path.GetExtension(path).ToLower().Equals(".pdf"))
{
throw new Exceptions.FileExtensionNotAllowed();
}
//Init object attributes.
Paragraphs = new Dictionary <string, Dictionary <string, int> >();
//Read PDF file and sotre each word appearence inside its paragraph.
using (PdfReader reader = new PdfReader(path))
{
Utils.TextAsParagraphsExtractionStrategy paragraphReader = new Utils.TextAsParagraphsExtractionStrategy();
for (int i = 1; i <= reader.NumberOfPages; i++)
{
PdfTextExtractor.GetTextFromPage(reader, i, paragraphReader);
}
//All the paragraph data is stored inside the paragraphReader (for all the pages).
foreach (string paragraph in paragraphReader.Paragraphs)
{
Dictionary <string, int> words = new Dictionary <string, int>();
foreach (string word in paragraph.Split(" ").Select(x => x.Trim()).Where(x => !string.IsNullOrEmpty(x)))
{
if (!words.ContainsKey(word))
{
words.Add(word, 0);
}
words[word]++;
}
if (!Paragraphs.ContainsKey(paragraph))
{
Paragraphs.Add(paragraph, words);
}
else
{
//Repeated paragraph... can be ignored.
}
}
}
}
