org.jpedal.objects.acroforms.utils.ConvertToString Maven / Gradle / Ivy

/*
 * ===========================================
 * Java Pdf Extraction Decoding Access Library
 * ===========================================
 *
 * Project Info:  http://www.idrsolutions.com
 * Help section for developers at http://www.idrsolutions.com/support/
 *
 * (C) Copyright 1997-2017 IDRsolutions and Contributors.
 *
 * This file is part of JPedal/JPDF2HTML5
 *
     This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


 *
 * ---------------
 * ConvertToString.java
 * ---------------
 */
package org.jpedal.objects.acroforms.utils;

import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

/**
 * @author chris
 *         
 *         class to help convert data structures to a single String
 */
public class ConvertToString {

    /**
     * @return
     */
    public static String convertArrayToString(final float[] values) {
        if (values != null) {
            final StringBuilder ret = new StringBuilder();
            for (int i = 0; i < values.length; i++) {
                if (i > 0) {
                    ret.append(", ");
                }
                ret.append(values[i]);
            }

            return ret.toString();
        } else {
            return null;
        }
    }

    /**
     * @return
     */
    public static String convertArrayToString(final int[] items) {
        if (items != null) {
            final StringBuilder ret = new StringBuilder();
            for (int i = 0; i < items.length; i++) {
                if (i > 0) {
                    ret.append(", ");
                }
                ret.append(items[i]);
            }

            return ret.toString();
        } else {
            return null;
        }
    }

    public static void printStackTrace(final int level) {
        printStackTrace(2, level + 1, false); //start at 2 to ignore this method line
    }

    public static void printStackTrace(final int startLevel, int endLevel, final boolean err) {

        final Throwable stackgetter = new Throwable();
        final StackTraceElement[] elems = stackgetter.getStackTrace();
        if (endLevel == -1 || endLevel > elems.length - 1) {
            endLevel = elems.length - 1;
        }

        for (int i = startLevel; i <= endLevel; i++) {
            if (err) {
                System.err.println(elems[i]);
            } else {
                System.out.println(elems[i]);
            }
        }
    }

    public static String convertDocumentToString(final Node formData) {
        return convertDocumentToString(formData, 0);
    }

    private static String convertDocumentToString(final Node formData, final int level) {
        if (formData == null) {
            return null;
        }

        final StringBuilder buf = new StringBuilder();

        buf.append(formData.getNodeName());
        buf.append(" = ");
        buf.append(formData.getNodeValue());
        buf.append(" type=");
        buf.append(formData.getNodeType());
        buf.append(" textContent=");
        buf.append(formData.getTextContent());

        final NamedNodeMap att = formData.getAttributes();
        if (att != null) {
            buf.append(" attributes=[");
            for (int i = 0; i < att.getLength(); i++) {
                if (i > 0) {
                    buf.append(',');
                }
                buf.append(att.item(i));
            }
            buf.append(']');
        }

        final NodeList nodes = formData.getChildNodes();
        for (int i = 0; i < nodes.getLength(); i++) {
            buf.append('\n');
            for (int d = 0; d < level; d++) {
                buf.append('|');
            }
            buf.append(convertDocumentToString(nodes.item(i), level + 1));
        }

        return buf.toString();
    }
}