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/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package atom.kie;

import atom.app.Activity;
import atom.view.EventListener;
import atom.view.EventType;
import atom.view.View;
import org.kie.api.runtime.process.WorkItem;
import org.kie.api.runtime.process.WorkItemManager;
import org.kie.internal.runtime.StatefulKnowledgeSession;

import java.util.Arrays;
import java.util.Locale;
import java.util.Map;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Predicate;

/**
 * Abstract Set Controller Task Work Item Handler with KIE session.
 *
 * @author Alex Voloshyn
 * @author Serge Voloshyn
 * @version 1.2 3/10/15
 */
public abstract class AbstractControllerTask extends AbstractTask {
    /**
     * Events delimiter character.
     */
    private static final String EVENT_DELIMITER = ":";

    /**
     * Default constructor with KIE session.
     *
     * @param ksession KIE session to use
     */
    public AbstractControllerTask(final StatefulKnowledgeSession ksession) {
        super(ksession);
    }

    /**
     * Apply event listeners to the views.
     *
     * @param activity   current activity
     * @param root       root view for view search by id
     * @param parameters task parameter
     */
    protected final void applyEventListeners(
            final Activity activity,
            final View root,
            final Map parameters) {
        if (!(activity instanceof EventListener)) {
            return;
        }
        final EventListener listener = (EventListener) activity;
        parameters.remove("TaskName");
        final Predicate notEmptyString
                = ((Predicate) String::isEmpty).negate();
        final Function adapter = event -> EventType.valueOf(
                event.toUpperCase(Locale.ENGLISH));
        final Consumer> paramsConsumer = entry -> {
            final View view = root.findViewById(entry.getKey());
            if (view == null) {
                return;
            }
            final String eventsList = String.valueOf(entry.getValue());
            final String[] events = eventsList.split(EVENT_DELIMITER);
            Arrays.stream(events).map(String::trim)
                    .filter(notEmptyString)
                    .map(adapter)
                    .forEach(eventType ->
                            view.setEventListener(eventType, listener));
        };
        parameters.entrySet().stream().forEach(paramsConsumer);
    }

    @Override
    public final void abortWorkItem(final WorkItem item,
                                    final WorkItemManager manager) {
        manager.abortWorkItem(item.getId());
    }
}