de.viadee.bpm.vPAV.processing.checker.CheckerFactory Maven / Gradle / Ivy

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The tool checks Camunda projects for consistency and discovers errors in process-driven applications. Called as a Maven plugin or JUnit test, it discovers esp. inconsistencies of a given BPMN model in the classpath and the sourcecode of an underlying java project, such as a delegate reference to a non-existing java class or a non-existing Spring bean.
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/**
 * Copyright © 2017, viadee Unternehmensberatung GmbH
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the viadee Unternehmensberatung GmbH.
 * 4. Neither the name of the viadee Unternehmensberatung GmbH nor the
 *    names of its contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY  ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package de.viadee.bpm.vPAV.processing.checker;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Map;
import java.util.logging.Logger;

import org.camunda.bpm.model.bpmn.instance.BaseElement;

import de.viadee.bpm.vPAV.BPMNConstants;
import de.viadee.bpm.vPAV.BPMNScanner;
import de.viadee.bpm.vPAV.RuntimeConfig;
import de.viadee.bpm.vPAV.config.model.Rule;
import de.viadee.bpm.vPAV.processing.ConfigItemNotFoundException;
import de.viadee.bpm.vPAV.processing.model.data.BpmnElement;

/**
 * Factory decides which Checkers will be used in defined situations
 *
 */
public final class CheckerFactory {

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

    /**
     * create checkers
     *
     * @param ruleConf
     *            rules for checker
     * @param resourcesNewestVersions
     *            resourcesNewestVersions in context
     * @param element
     *            given BpmnElement
     * @param bpmnScanner
     *            bpmnScanner for model
     * @return checkers returns checkers
     *
     * @throws ConfigItemNotFoundException
     *             exception when ConfigItem (e.g. rule) not found
     */
    public static Collection createCheckerInstancesBpmnElement(
            final Map ruleConf, final Collection resourcesNewestVersions,
            final BpmnElement element, BPMNScanner bpmnScanner)
            throws ConfigItemNotFoundException {

        final Collection checkers = new ArrayList();
        final BaseElement baseElement = element.getBaseElement();
        if (baseElement == null) {
            throw new RuntimeException("Bpmn Element couldn't be found");
        }

        for (Map.Entry rule : ruleConf.entrySet()) {
            String fullyQualifiedName = getFullyQualifiedName(rule);

            if (!fullyQualifiedName.isEmpty() && !rule.getKey().equals("ProcessVariablesModelChecker")) {
                try {
                    if (!rule.getKey().equals("VersioningChecker")) {
                        Constructor c = Class.forName(fullyQualifiedName).getConstructor(Rule.class,
                                BPMNScanner.class);
                        AbstractElementChecker aChecker = (AbstractElementChecker) c.newInstance(rule.getValue(),
                                bpmnScanner);
                        checkers.add(aChecker);
                    } else {
                        Constructor c = Class.forName(fullyQualifiedName).getConstructor(Rule.class,
                                BPMNScanner.class, Collection.class);
                        AbstractElementChecker aChecker = (AbstractElementChecker) c.newInstance(rule.getValue(),
                                bpmnScanner,
                                resourcesNewestVersions);
                        checkers.add(aChecker);
                    }

                } catch (NoSuchMethodException | SecurityException | ClassNotFoundException
                        | InstantiationException | IllegalAccessException | IllegalArgumentException
                        | InvocationTargetException e) {
                    LOGGER.warning("Class " + fullyQualifiedName + " not found or couldn't be instantiated");
                    rule.getValue().deactivate();
                }
            }
        }
        return checkers;
    }

    /**
     * get the fullyQualifiedName of the rule
     *
     * @param rule
     *            Rule in Map
     * @return fullyQualifiedName
     */
    private static String getFullyQualifiedName(Map.Entry rule) {
        String fullyQualifiedName = "";
        if (Arrays.asList(RuntimeConfig.getInstance().getViadeeRules()).contains(rule.getKey())
                && rule.getValue().isActive()) {
            fullyQualifiedName = BPMNConstants.INTERN_LOCATION + rule.getValue().getName().trim();
        } else if (rule.getValue().isActive() && rule.getValue().getSettings() != null
                && rule.getValue().getSettings().containsKey(BPMNConstants.EXTERN_LOCATION)) {
            fullyQualifiedName = rule.getValue().getSettings().get(BPMNConstants.EXTERN_LOCATION).getValue()
                    + "." + rule.getValue().getName().trim();
        }
        if (fullyQualifiedName.isEmpty() && rule.getValue().isActive()) {
            LOGGER.warning("Checker '" + rule.getValue().getName()
                    + "' not found. Please add setting for external_location in ruleSet.xml.");
            rule.getValue().deactivate();
        }
        return fullyQualifiedName;
    }
}