ru.runa.wf.logic.bot.assigner.AssignerSettingsXmlParser.java Source code

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Here is the source code for ru.runa.wf.logic.bot.assigner.AssignerSettingsXmlParser.java

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/*
 * This file is part of the RUNA WFE project.
 * 
 * This program 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; version 2.1 
 * of the License. 
 * 
 * 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 Lesser General Public License for more details. 
 * 
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 */
package ru.runa.wf.logic.bot.assigner;

import java.util.List;

import org.dom4j.Document;
import org.dom4j.Element;

import ru.runa.wfe.commons.xml.XmlUtils;

import com.google.common.base.Preconditions;

public class AssignerSettingsXmlParser {
    private static final String CONDITIONS_ELEMENT_NAME = "conditions";
    private static final String CONDITION_ELEMENT_NAME = "condition";
    private static final String SWIMLANE_ELEMENT_NAME = "swimlaneName";
    private static final String FUNCTION_ELEMENT_NAME = "function";
    private static final String VARIABLE_ELEMENT_NAME = "variableName";

    public static AssignerSettings read(String configuration) throws Exception {
        AssignerSettings assignerSettings = new AssignerSettings();
        Document document = XmlUtils.parseWithXSDValidation(configuration, "assigner.xsd");
        Element conditionsElement = document.getRootElement().element(CONDITIONS_ELEMENT_NAME);
        List<Element> elements = conditionsElement.elements(CONDITION_ELEMENT_NAME);
        for (Element conditionElement : elements) {
            String swimlaneName = conditionElement.elementTextTrim(SWIMLANE_ELEMENT_NAME);
            String functionClassName = conditionElement.elementTextTrim(FUNCTION_ELEMENT_NAME);
            String variableName = conditionElement.elementTextTrim(VARIABLE_ELEMENT_NAME);
            Preconditions.checkNotNull(swimlaneName, SWIMLANE_ELEMENT_NAME);
            Preconditions.checkNotNull(functionClassName, FUNCTION_ELEMENT_NAME);
            Preconditions.checkNotNull(variableName, VARIABLE_ELEMENT_NAME);
            assignerSettings.addAssignerCondition(
                    new AssignerSettings.Condition(swimlaneName, functionClassName, variableName));
        }
        return assignerSettings;
    }
}