org.onecmdb.utils.xml.XMLUtils.java Source code

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Here is the source code for org.onecmdb.utils.xml.XMLUtils.java

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/*
 * Lokomo OneCMDB - An Open Source Software for Configuration
 * Management of Datacenter Resources
 *
 * Copyright (C) 2006 Lokomo Systems AB
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 * 
 * Lokomo Systems AB can be contacted via e-mail: info@lokomo.com or via
 * paper mail: Lokomo Systems AB, Svrdvgen 27, SE-182 33
 * Danderyd, Sweden.
 *
 */
package org.onecmdb.utils.xml;

import java.util.HashMap;
import java.util.Map;

import org.dom4j.Attribute;
import org.dom4j.Element;

public class XMLUtils {
    /**
     * XML helper functions
     */
    public static String getElementValue(Map<String, String> attrMap, Element sel, String elementName,
            boolean requiered) {

        Element el = sel.element(elementName);
        if (el == null) {
            if (requiered) {
                throw new IllegalArgumentException("Element <" + elementName + "> is missing in <" + sel.getName()
                        + "> [" + sel.getPath() + "]");
            }
            return (null);
        }
        String text = el.getTextTrim();
        if (requiered && (text == null || text.length() == 0)) {
            throw new IllegalArgumentException("Element <" + elementName + "> has no value in <" + sel.getName()
                    + "> [" + sel.getPath() + "]");
        }
        text = subsituteAttr(attrMap, text);
        return (text);
    }

    public static String subsituteAttr(Map<String, String> attrMap, String text) {
        if (attrMap == null) {
            return (text);
        }
        if (!text.contains("{")) {
            return (text);
        }
        String newString = text;
        for (Object key : attrMap.keySet()) {
            String value = (String) attrMap.get(key);
            newString = newString.replace("{" + key + "}", value);
        }
        return (newString);
    }

    public static String getAttributeValue(Map<String, String> attrMap, Element sel, String attributeName,
            boolean requiered) {

        Attribute el = sel.attribute(attributeName);
        if (el == null) {
            if (requiered) {
                throw new IllegalArgumentException("Attribute <" + attributeName + "> is missing in <"
                        + sel.getName() + "> [" + sel.getPath() + "]");
            }
            return (null);
        }
        String text = el.getText();
        if (requiered && (text == null || text.length() == 0)) {
            throw new IllegalArgumentException("Element <" + attributeName + "> has no value in <" + sel.getName()
                    + "> [" + sel.getPath() + "]");
        }
        text = subsituteAttr(attrMap, text);
        return (text);
    }

}