de.alpharogroup.duplicate.files.actions.ShowLicenseFrameAction.java Source code

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Here is the source code for de.alpharogroup.duplicate.files.actions.ShowLicenseFrameAction.java

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/**
 * Copyright (C) 2007 Asterios Raptis
 *
 * This program is open source software; you can redistribute it and/or modify
 * it under the terms of the Apache License V2.0 as published by
 * the Apache Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY.
 */
package de.alpharogroup.duplicate.files.actions;

import java.awt.event.ActionEvent;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import javax.swing.AbstractAction;

import de.alpharogroup.io.StreamExtensions;

import org.springframework.context.ApplicationContext;
import org.springframework.core.io.Resource;

import de.alpharogroup.duplicate.files.help.HelpJFrame;
import de.alpharogroup.duplicate.files.spring.SpringApplicationContext;

/**
 * The Class ShowLicenseFrameAction.
 */
@SuppressWarnings("serial")
public class ShowLicenseFrameAction extends AbstractAction {

    /** The Constant LICENCE_TITLE. */
    private static final String LICENCE_TITLE = "Licence";

    /**
     * Instantiates a new show license frame action.
     *
     * @param name the name
     */
    public ShowLicenseFrameAction(String name) {
        super(name);
    }

    /* (non-Javadoc)
     * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
     */
    @Override
    public void actionPerformed(ActionEvent e) {
        String licence = loadLicense();
        HelpJFrame frame = new HelpJFrame(LICENCE_TITLE, licence);
        frame.setVisible(true);
    }

    /**
     * Load license.
     *
     * @return the string
     */
    private String loadLicense() {

        ApplicationContext ctx = SpringApplicationContext.getInstance().getApplicationContext();
        Resource resource = ctx.getResource("classpath:LICENSE.txt");
        InputStream is = null;
        StringBuffer license = new StringBuffer();
        try {
            String thisLine;
            is = resource.getInputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            while ((thisLine = br.readLine()) != null) {
                license.append(thisLine + "\n");
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        } finally {
            try {
                StreamExtensions.close(is);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return license.toString();
    }

}