org.evrete.jsr94.Utils Maven / Gradle / Ivy

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package org.evrete.jsr94;


import org.evrete.api.RuntimeContext;
import org.evrete.api.StatefulSession;

import javax.rules.InvalidRuleSessionException;
import javax.rules.admin.RuleExecutionSetCreateException;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.function.BiConsumer;
import java.util.logging.Logger;

final class Utils {
    private static final Logger LOGGER = Logger.getLogger(Utils.class.getName());

    static void setProperty(RuntimeContext ctx, Object key, Object value) {
        if (key == null) {
            LOGGER.warning(()->"Null property keys are not supported");
        }
        if (key instanceof String) {
            ctx.set((String) key, value);
        } else {
            LOGGER.warning(()->"Non-string property keys are not supported");
        }
    }

    static Object getProperty(RuntimeContext ctx, Object key) {
        if (key instanceof String) {
            return ctx.get((String) key);
        } else {
            LOGGER.warning(()->"Non-string property keys are not supported");
            return null;
        }
    }

    @SuppressWarnings("rawtypes")
    static String dslName(Map map) throws RuleExecutionSetCreateException {
        Object o = map.get(Constants.DSL_NAME);

        if (o instanceof String) {
            return (String) o;
        } else {
            throw new RuleExecutionSetCreateException("Missing DSL name property '" + Constants.DSL_NAME + "'");
        }
    }

    static List sessionObjects(StatefulSession delegate) throws InvalidRuleSessionException {
        try {
            List