de.viadee.bpm.vPAV.output.JsonOutputWriter 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.output;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.nio.charset.StandardCharsets;
import java.util.Collection;
import java.util.List;

import com.google.gson.GsonBuilder;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;

import de.viadee.bpm.vPAV.ConstantsConfig;
import de.viadee.bpm.vPAV.processing.model.data.BpmnElement;
import de.viadee.bpm.vPAV.processing.model.data.CheckerIssue;
import de.viadee.bpm.vPAV.processing.model.graph.Path;

public class JsonOutputWriter implements IssueOutputWriter {

    /**
     * Writes all collected issues to the vPAV output
     *
     * @param issues
     *            Collection of CheckerIssues
     */
    @Override
    public void write(final Collection issues) throws OutputWriterException {
        final String json = transformToJsonDatastructure(issues);
        if (json != null && !json.isEmpty()) {
            try {
                final OutputStreamWriter osWriter = new OutputStreamWriter(
                        new FileOutputStream(ConstantsConfig.VALIDATION_JSON_OUTPUT), StandardCharsets.UTF_8);
                osWriter.write(json);
                osWriter.close();
            } catch (final IOException ex) {
                throw new OutputWriterException("json output couldn't be written");
            }
        }
    }

    /**
     * Transforms the collected issues to a JSON-String
     *
     * @param issues
     * @return String
     */
    private static String transformToJsonDatastructure(final Collection issues) {
        final JsonArray jsonIssues = new JsonArray();
        if (issues != null && issues.size() > 0) {
            for (final CheckerIssue issue : issues) {
                final JsonObject obj = new JsonObject();
                obj.addProperty("id", issue.getId());
                obj.addProperty("bpmnFile", issue.getBpmnFile());
                obj.addProperty("ruleName", issue.getRuleName());
                obj.addProperty("elementId", issue.getElementId());
                obj.addProperty("elementName", issue.getElementName());
                obj.addProperty("classification", issue.getClassification().name());
                obj.addProperty("resourceFile", issue.getResourceFile());
                obj.addProperty("variable", issue.getVariable());
                obj.addProperty("anomaly",
                        issue.getAnomaly() == null ? null : issue.getAnomaly().getDescription());
                final JsonArray jsonPaths = new JsonArray();
                final List paths = issue.getInvalidPaths();
                if (paths != null && paths.size() > 0) {
                    for (final Path path : paths) {
                        final JsonArray jsonPath = new JsonArray();
                        final List elements = path.getElements();
                        for (BpmnElement element : elements) {
                            final JsonObject jsonElement = new JsonObject();
                            final String id = element.getBaseElement().getId();
                            final String name = element.getBaseElement().getAttributeValue("name");
                            jsonElement.addProperty("elementId", id);
                            jsonElement.addProperty("elementName",
                                    name == null ? null : name.replaceAll("\n", ""));
                            jsonPath.add(jsonElement);
                        }
                        jsonPaths.add(jsonPath);
                    }
                }
                obj.add("paths", jsonPaths);
                obj.addProperty("message", issue.getMessage());
                jsonIssues.add(obj);
            }
        }

        return new GsonBuilder().setPrettyPrinting().create().toJson(jsonIssues);
    }
}