DateUtils.java

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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2012
 * the Initial Developer. All Rights Reserved.
 *
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 * See @authors listed below
 *
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 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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package org.dcm4chee.wizard.util;

/**
 * @author Gunter Zeilinger <gunterze@gmail.com>
 */
public class DateUtils {

    public static String da2str(String da) {
        if (da == null) {
            return null;
        }
        if (da.length() != 8) {
            return da;
        }
        StringBuilder sb = new StringBuilder(10);
        sb.append(da.substring(0, 4))
                .append('-')
                .append(da.substring(4, 6))
                .append('-')
                .append(da.substring(6));
        return sb.toString();
    }

    public static String str2da(String str) {
        String s = str.trim();
        if (s.length() != 10) {
            return s;
        }
        StringBuilder sb = new StringBuilder(8);
        sb.append(s.substring(0, 4))
                .append(s.substring(5, 7))
                .append(s.substring(8));
        return sb.toString();
    }

    public static String tm2str(String tm) {
        if (tm == null) {
            return null;
        }
        if (tm.length() < 4 || tm.charAt(2) == ':') {
            return tm;
        }
        StringBuilder sb = new StringBuilder(10);
        sb.append(tm.substring(0, 2))
                .append(':')
                .append(tm.substring(2, 4));
        if (tm.length() >= 6) {
            sb.append(':').append(tm.substring(4,6));
        }
        return sb.toString();
    }

    public static String str2tm(String str) {
        String s = str.trim();
        int colon = s.indexOf(':');
        if (colon == -1) {
            return s;
        }
        StringBuilder sb = new StringBuilder(s.length());
        int pos = 0;
        do {
            sb.append(s.substring(pos, colon));
            pos = colon + 1;
            colon = s.indexOf(':', pos);
        } while (colon != -1);
        sb.append(s.substring(pos));
        return sb.toString();
    }

    public static String datm2str(String da, String tm) {
        return da2str(da) + " " + tm2str(tm);
    }

    public static String[] str2datm(String str) {
        String s = str.trim();
        int space = s.indexOf(' ');
        String[] datm = new String[2];
        if (space == -1) {
            datm[0] = str2da(s);
        } else {
            datm[0] = str2da(s.substring(0, space));
            datm[1] = str2tm(s.substring(space+1).trim());
        }
        return datm;
    }
}