editorframework.pdfbox.PDFBoxDocumentAdaptee.java Source code

Introduction

Here is the source code for editorframework.pdfbox.PDFBoxDocumentAdaptee.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package editorframework.pdfbox;

import java.io.IOException;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;

/**
 *
 * @author aluno
 */
public class PDFBoxDocumentAdaptee {
    private PDDocument document = null;
    private int currentPage = 0;
    private String currentFilename;
    private int numberOfPages = 0;

    public PDDocument openPDF(String currentFilename) {
        try {
            document = parseDocument(currentFilename);
            currentPage = 0;
            numberOfPages = (getAllPages() != null) ? getAllPages().size() : 0;
            return document;
        } catch (IOException ex) {
            Logger.getLogger(OpenTextPDFAdapter.class.getName()).log(Level.SEVERE, null, ex);
        }
        return null;
    }

    private static PDDocument parseDocument(String filename) throws IOException {
        PDDocument document = PDDocument.load(filename);
        if (document.isEncrypted()) {
            try {
                document.decrypt("");
            } catch (org.apache.pdfbox.exceptions.CryptographyException e) {
                e.printStackTrace();
            }
        }

        return document;
    }

    public List<PDPage> getAllPages() {
        return (document == null) ? null : document.getDocumentCatalog().getAllPages();
    }

    public int getNumberOfPages() {
        return numberOfPages;
    }

    public int getCurrentPage() {
        return currentPage;
    }

    private String getCurrentFilename() {
        return currentFilename;
    }

    private int nextPage() {
        if (currentPage < numberOfPages - 1)
            return ++currentPage;
        return currentPage;
    }

    private int previousPage() {
        if (currentPage > 0)
            return --currentPage;
        return currentPage;
    }

}