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Java client for the Rundeck REST API

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package org.rundeck.api.parser;

import org.apache.commons.lang.StringUtils;
import org.dom4j.Node;
import org.rundeck.api.domain.*;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * $INTERFACE is ... User: greg Date: 1/16/14 Time: 5:44 PM
 */
public class WorkflowStateParser extends BaseXpathParser {


    private static final ThreadLocal w3cDateFormat = new ThreadLocal() {
        protected DateFormat initialValue() {
            SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US);
            fmt.setTimeZone(TimeZone.getTimeZone("GMT"));
            return fmt;
        }
    };

    public WorkflowStateParser(final String xpath) {
        super(xpath);
    }

    public static Date parseDate(String s) {
        if (null == s) {
            return null;
        }
        try {
            Date parse = w3cDateFormat.get().parse(s);
            return parse;
        } catch (ParseException e) {
            return null;
        }
    }

    private static int integerValue(final String value, final int defValue) {
        int parseMax = defValue;
        try {
            parseMax = null != value ? Integer.parseInt(value) : defValue;
        } catch (NumberFormatException e) {
        }
        return parseMax;
    }

    @Override
    public WorkflowState parse(Node targetNode) {
        WorkflowState state = new WorkflowState();
        parseWorkflowState(targetNode, state);


        return state;
    }

    /**
     * Parse the workflow state components from the given dom node
     * @param targetNode
     * @param state
     */
    public static void parseWorkflowState(Node targetNode, WorkflowState state) {
        BaseStateParser.parseBaseState(targetNode, state);

        state.setStepCount(integerValue(StringUtils.trimToNull(targetNode.valueOf("stepCount")), 0));

        final List rundeckNodes =
                new ListParser(new NodeParser(), "targetNodes/nodes/node").parseXmlNode(targetNode);
        state.setTargetNodes(new HashSet(rundeckNodes));

        //steps
        state.setSteps(new ListParser(new WorkflowStepStateParser(),
                "steps/step").parseXmlNode(targetNode));
    }

}