de.uni.freiburg.iig.telematik.sewol.log.LogTraceUtils Maven / Gradle / Ivy

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SEWOL provides support for the handling of workflow traces. Specifically it allows to specify the shape and content of process traces in terms of entries representing the execution of a specific workflow activity. SEWOL also allows to write these traces on disk as a log file with the help of a special file writer for process logs. Currently it supports plain text, Petrify, MXML and XES log file types. In order to specify security-related context information, SEWOL provides access control models such as access control lists (ACL) and role-based access control models (RBAC). All types of models can be conveniently edited with the help of appropriate dialogs.

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package de.uni.freiburg.iig.telematik.sewol.log;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import de.invation.code.toval.validate.ParameterException;
import de.invation.code.toval.validate.Validate;

public class LogTraceUtils {

    private static final String traceFormat = "trace%s: %s";

    public static LogTrace createTraceFromActivities(int caseNumber, String... activities) {
        return createTraceFromActivities(caseNumber, LogEntry.class, activities);
    }

    public static  LogTrace createTraceFromActivities(int caseNumber, Class entryClass, String... activities) {
        return createTraceFromActivities(caseNumber, entryClass, Arrays.asList(activities));
    }

    public static LogTrace createTraceFromActivities(int caseNumber, List activities) {
        return createTraceFromActivities(caseNumber, LogEntry.class, activities);
    }

    public static  LogTrace createTraceFromActivities(int caseNumber, Class entryClass, List activities) {
        Validate.notNegative(caseNumber);
        Validate.notNull(entryClass);
        try {
            entryClass.newInstance();
        } catch (InstantiationException | IllegalAccessException e) {
            throw new ParameterException("Cannot instantiate entry class: " + entryClass.getSimpleName());
        }
        Validate.notNull(activities);
        Validate.notEmpty(activities);
        Validate.noNullElements(activities);

        LogTrace result = new LogTrace<>(caseNumber);
        for (String activity : activities) {
            E newEntry = null;
            try {
                newEntry = entryClass.newInstance();
                newEntry.setActivity(activity);
            } catch (IllegalAccessException | InstantiationException | LockingException e) {
				// Cannot happen, since we validated this before.
                // Cannot happen, since we validated this before.
                // Cannot happen, since the field activity is not locked.
            }

            result.addEntry(newEntry);
        }

        return result;
    }

    public static  List> createTraceList(LogTrace... traces) {
        return Arrays.asList(traces);
    }

    public static  List> createStringRepresentation(Collection> traceList, boolean onlyDistinctSequences) {
        Set> distinctSequences = new HashSet<>();
        List> result = new ArrayList<>();
        for (LogTrace trace : traceList) {
            List activityList = trace.getActivities();
            if (!onlyDistinctSequences) {
                result.add(activityList);
            } else {
                if (distinctSequences.add(activityList)) {
                    result.add(activityList);
                }
            }
        }
        return result;
    }

    public static  boolean containsTracesWithDuplicates(Collection> traceList) {
        for (LogTrace trace : traceList) {
            if (trace.containsDuplicateActivities()) {
                return true;
            }
        }
        return false;
    }

    public static  void print(Collection> coll) {
        if (coll == null) {
            throw new NullPointerException();
        }
        if (coll.isEmpty()) {
            return;
        }
        for (LogTrace t : coll) {
            System.out.println(String.format(traceFormat, t.getCaseNumber(), t.getActivities()));
        }
    }
}