com.izforge.izpack.panels.pdflicence.PDFLicenceConsolePanel.java Source code

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Here is the source code for com.izforge.izpack.panels.pdflicence.PDFLicenceConsolePanel.java

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/*
 * IzPack - Copyright 2001-2016 The IzPack project team.
 * All Rights Reserved.
 *
 * http://izpack.org/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.izforge.izpack.panels.pdflicence;

import com.izforge.izpack.api.resource.Resources;
import com.izforge.izpack.installer.console.ConsolePanel;
import com.izforge.izpack.installer.panel.PanelView;
import com.izforge.izpack.panels.licence.AbstractLicenceConsolePanel;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.util.PDFTextStripper;

import java.io.IOException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * PDF Licence Panel console helper
 */
public class PDFLicenceConsolePanel extends AbstractLicenceConsolePanel {

    private static final Logger logger = Logger.getLogger(AbstractLicenceConsolePanel.class.getName());

    /**
     * Constructs an <tt>PDFLicenceConsolePanel</tt>.
     *
     * @param panel
     *            the parent panel/view. May be {@code null}
     * @param resources
     *            the resources
     */
    public PDFLicenceConsolePanel(PanelView<ConsolePanel> panel, Resources resources) {
        super(panel, resources);
    }

    /**
     * Returns the text to display.
     *
     * @return the text. A <tt>null</tt> indicates failure
     */
    @Override
    protected String getText() {
        URL url = null;
        try {
            PDFTextStripper stripper = new PDFTextStripper();
            url = loadLicence();
            return stripper.getText(PDDocument.load(url));
        } catch (IOException e) {
            logger.log(Level.WARNING,
                    "Error opening PDF license document from resource" + (url != null ? " " + url.getFile() : ""),
                    e);
            return null;
        }
    }
}