org.yawlfoundation.yawl.logging.YLogPredicate.java Source code

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Here is the source code for org.yawlfoundation.yawl.logging.YLogPredicate.java

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/*
 * Copyright (c) 2004-2012 The YAWL Foundation. All rights reserved.
 * The YAWL Foundation is a collaboration of individuals and
 * organisations who are committed to improving workflow technology.
 *
 * This file is part of YAWL. YAWL 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.
 *
 * YAWL 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 YAWL. If not, see <http://www.gnu.org/licenses/>.
 */

package org.yawlfoundation.yawl.logging;

import org.jdom2.Element;
import org.jdom2.Namespace;
import org.yawlfoundation.yawl.elements.YDecomposition;
import org.yawlfoundation.yawl.elements.data.YParameter;
import org.yawlfoundation.yawl.engine.YWorkItem;
import org.yawlfoundation.yawl.util.StringUtil;

/**
 * Author: Michael Adams
 * Creation Date: 17/02/2010
 */
public class YLogPredicate {

    private String _startPredicate;
    private String _completionPredicate;

    public YLogPredicate() {
    }

    public YLogPredicate(Element xml) {
        fromXML(xml);
    }

    public YLogPredicate(Element xml, Namespace ns) {
        fromXML(xml, ns);
    }

    public String getStartPredicate() {
        return _startPredicate;
    }

    public String getCompletionPredicate() {
        return _completionPredicate;
    }

    public void setStartPredicate(String predicate) {
        _startPredicate = predicate;
    }

    public void setCompletionPredicate(String predicate) {
        _completionPredicate = predicate;
    }

    public String getParsedStartPredicate(YWorkItem workItem) {
        if (_startPredicate == null)
            return null;
        return new YLogPredicateWorkItemParser(workItem).parse(_startPredicate);
    }

    public String getParsedStartPredicate(YDecomposition decomp) {
        if (_startPredicate == null)
            return null;
        return new YLogPredicateDecompositionParser(decomp).parse(_startPredicate);
    }

    public String getParsedStartPredicate(YParameter param) {
        if (_startPredicate == null)
            return null;
        return new YLogPredicateParameterParser(param).parse(_startPredicate);
    }

    public String getParsedCompletionPredicate(YWorkItem workItem) {
        if (_completionPredicate == null)
            return null;
        return new YLogPredicateWorkItemParser(workItem).parse(_completionPredicate);
    }

    public String getParsedCompletionPredicate(YDecomposition decomp) {
        if (_completionPredicate == null)
            return null;
        return new YLogPredicateDecompositionParser(decomp).parse(_completionPredicate);
    }

    public String getParsedCompletionPredicate(YParameter param) {
        if (_completionPredicate == null)
            return null;
        return new YLogPredicateParameterParser(param).parse(_completionPredicate);
    }

    public void fromXML(Element xml) {
        _startPredicate = xml.getChildText("start");
        _completionPredicate = xml.getChildText("completion");
    }

    public void fromXML(Element xml, Namespace ns) {
        _startPredicate = xml.getChildText("start", ns);
        _completionPredicate = xml.getChildText("completion", ns);
    }

    public String toXML() {
        if ((_startPredicate == null) && (_completionPredicate == null))
            return "";

        StringBuilder xml = new StringBuilder("<logPredicate>");
        if (_startPredicate != null)
            xml.append(StringUtil.wrapEscaped(_startPredicate, "start"));
        if (_completionPredicate != null)
            xml.append(StringUtil.wrapEscaped(_completionPredicate, "completion"));
        xml.append("</logPredicate>");
        return xml.toString();
    }

    public boolean equals(Object o) {
        if (o instanceof YLogPredicate) {
            YLogPredicate other = (YLogPredicate) o;
            return ((_startPredicate == null && other._startPredicate == null)
                    || (_startPredicate != null && _startPredicate.equals(other._startPredicate))
                            && ((_completionPredicate == null && other._completionPredicate == null)
                                    || (_completionPredicate != null
                                            && _completionPredicate.equals(other._completionPredicate))));
        }
        return false;
    }

    public int hashCode() {
        return 17 * (_startPredicate != null ? _startPredicate.hashCode() : 17)
                * (_completionPredicate != null ? _completionPredicate.hashCode() : 33);
    }

}