de.viadee.bpm.vPAV.processing.checker.VersioningChecker 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.
/**
* BSD 3-Clause License
*
* Copyright © 2019, viadee Unternehmensberatung AG
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of the copyright holder 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 de.odysseus.el.tree.IdentifierNode;
import de.odysseus.el.tree.Tree;
import de.odysseus.el.tree.TreeBuilder;
import de.odysseus.el.tree.impl.Builder;
import de.viadee.bpm.vPAV.BpmnScanner;
import de.viadee.bpm.vPAV.FileScanner;
import de.viadee.bpm.vPAV.Messages;
import de.viadee.bpm.vPAV.RuntimeConfig;
import de.viadee.bpm.vPAV.config.model.Rule;
import de.viadee.bpm.vPAV.constants.BpmnConstants;
import de.viadee.bpm.vPAV.constants.ConfigConstants;
import de.viadee.bpm.vPAV.output.IssueWriter;
import de.viadee.bpm.vPAV.processing.ProcessingException;
import de.viadee.bpm.vPAV.processing.code.flow.BpmnElement;
import de.viadee.bpm.vPAV.processing.model.data.CheckerIssue;
import de.viadee.bpm.vPAV.processing.model.data.CriticalityEnum;
import org.camunda.bpm.model.bpmn.impl.BpmnModelConstants;
import org.camunda.bpm.model.bpmn.instance.*;
import org.camunda.bpm.model.bpmn.instance.camunda.CamundaExecutionListener;
import org.camunda.bpm.model.bpmn.instance.camunda.CamundaScript;
import org.camunda.bpm.model.bpmn.instance.camunda.CamundaTaskListener;
import javax.el.ELException;
import java.util.*;
/**
* check versioning of the referenced classes, scripts and beans
*
*/
public class VersioningChecker extends AbstractElementChecker {
private Collection resourcesNewestVersions;
public VersioningChecker(final Rule rule, final BpmnScanner bpmnScanner,
final Collection resourcesNewestVersions) {
super(rule, bpmnScanner);
this.resourcesNewestVersions = resourcesNewestVersions;
}
public boolean isSingletonChecker() {
return true;
}
/**
* Check versions of referenced beans and/or classes
*
* @return issues
*/
@Override
public Collection check(final BpmnElement element) {
final Collection issues = new ArrayList();
final BaseElement baseElement = element.getBaseElement();
// Service Task, Business Task, Send Task
issues.addAll(checkCommonTasks(element));
// Script Task
issues.addAll(checkScriptTask(element));
// Listener
final ExtensionElements extensionElements = baseElement.getExtensionElements();
if (extensionElements != null) {
// Execution Listener
issues.addAll(checkExecutionListener(element, extensionElements));
// Task Listener
issues.addAll(checkTaskListener(element, extensionElements));
}
// Message Event Definition
issues.addAll(checkMessageEventDefinition(element));
return issues;
}
/**
* check versioning for execution listener
*
* @param element
* @param extensionElements
* @return issues
*/
private Collection checkExecutionListener(final BpmnElement element,
final ExtensionElements extensionElements) {
final Collection issues = new ArrayList();
List execListenerList = extensionElements.getElementsQuery()
.filterByType(CamundaExecutionListener.class).list();
for (final CamundaExecutionListener listener : execListenerList) {
final String l_expression = listener.getCamundaExpression();
if (l_expression != null) {
prepareBeanWarning(l_expression, element, issues);
}
final String l_delegateExpression = listener.getCamundaDelegateExpression();
if (l_delegateExpression != null) {
prepareBeanWarning(l_delegateExpression, element, issues);
}
final String javaReference = getClassReference(listener.getCamundaClass());
if (javaReference != null) {
prepareClassWarning(javaReference, element, issues);
}
final CamundaScript script = listener.getCamundaScript();
if (script != null && script.getCamundaScriptFormat() != null
&& script.getCamundaScriptFormat().equals(ConfigConstants.GROOVY)) {
final String resourcePath = getGroovyReference(script.getCamundaResource());
prepareScriptWarning(resourcePath, element, issues);
}
}
return issues;
}
/**
* check versioning for task listener
*
* @param element
* @param extensionElements
* @return issues
*/
private Collection checkTaskListener(final BpmnElement element,
final ExtensionElements extensionElements) {
final Collection issues = new ArrayList();
List taskListenerList = extensionElements.getElementsQuery()
.filterByType(CamundaTaskListener.class).list();
for (final CamundaTaskListener listener : taskListenerList) {
final String l_expression = listener.getCamundaExpression();
if (l_expression != null) {
prepareBeanWarning(l_expression, element, issues);
}
final String l_delegateExpression = listener.getCamundaDelegateExpression();
if (l_delegateExpression != null) {
prepareBeanWarning(l_delegateExpression, element, issues);
}
final String javaReference = getClassReference(listener.getCamundaClass());
if (javaReference != null) {
prepareClassWarning(javaReference, element, issues);
}
final CamundaScript script = listener.getCamundaScript();
if (script != null && script.getCamundaScriptFormat() != null
&& script.getCamundaScriptFormat().equals(ConfigConstants.GROOVY)) {
final String resourcePath = getGroovyReference(script.getCamundaResource());
prepareScriptWarning(resourcePath, element, issues);
}
}
return issues;
}
/**
* check versioning for service task, send task or business rule task
*
* @param element
* @return issues
*/
private Collection checkCommonTasks(final BpmnElement element) {
final Collection issues = new ArrayList();
final BaseElement baseElement = element.getBaseElement();
if (baseElement instanceof ServiceTask || baseElement instanceof SendTask
|| baseElement instanceof BusinessRuleTask) {
// Class, Expression, Delegate Expression
final String t_expression = baseElement.getAttributeValueNs(BpmnModelConstants.CAMUNDA_NS,
BpmnConstants.ATTR_EX);
if (t_expression != null) {
prepareBeanWarning(t_expression, element, issues);
}
final String t_delegateExpression = baseElement.getAttributeValueNs(BpmnModelConstants.CAMUNDA_NS,
BpmnConstants.ATTR_DEL);
if (t_delegateExpression != null && !FileScanner.getIsDirectory()) {
prepareBeanWarning(t_delegateExpression, element, issues);
} else if (t_delegateExpression != null && FileScanner.getIsDirectory()) {
prepareDirBasedBeanWarning(t_delegateExpression, element, issues);
}
final String javaReference = baseElement.getAttributeValueNs(BpmnModelConstants.CAMUNDA_NS,
BpmnConstants.ATTR_CLASS);
if (getClassReference(javaReference) != null && !FileScanner.getIsDirectory()) {
prepareClassWarning(getClassReference(javaReference), element, issues);
} else if (javaReference != null && FileScanner.getIsDirectory()) {
prepareDirBasedClassWarning(javaReference, element, issues);
}
}
return issues;
}
/**
* check versioning for script task
*
* @param element
* @return issues
*/
private Collection checkScriptTask(final BpmnElement element) {
final Collection issues = new ArrayList();
final BaseElement baseElement = element.getBaseElement();
if (baseElement instanceof ScriptTask) {
final ScriptTask scriptTask = (ScriptTask) baseElement;
if (scriptTask.getScriptFormat() != null && scriptTask.getScriptFormat().equals(ConfigConstants.GROOVY)) {
// External Resource
String resourcePath = scriptTask.getCamundaResource();
resourcePath = getGroovyReference(resourcePath);
prepareScriptWarning(resourcePath, element, issues);
}
}
return issues;
}
/**
* check versioning for message event
*
* @param element
* @return
*/
private Collection checkMessageEventDefinition(final BpmnElement element) {
final Collection issues = new ArrayList();
final BaseElement baseElement = element.getBaseElement();
if (baseElement instanceof MessageEventDefinition) {
// Class, Expression, Delegate Expression
final MessageEventDefinition eventDef = (MessageEventDefinition) baseElement;
final String javaReference = getClassReference(eventDef.getCamundaClass());
if (javaReference != null) {
prepareClassWarning(javaReference, element, issues);
}
final String e_expression = eventDef.getCamundaExpression();
if (e_expression != null) {
prepareBeanWarning(e_expression, element, issues);
}
final String e_delegateExpression = eventDef.getCamundaDelegateExpression();
if (e_delegateExpression != null) {
prepareBeanWarning(e_delegateExpression, element, issues);
}
}
return issues;
}
/**
* convert package format into class file name
*
* @param javaResource
* @return file
*/
private String getClassReference(final String javaResource) {
if (javaResource != null && !FileScanner.getIsDirectory()) {
return javaResource.substring(javaResource.lastIndexOf('.') + 1, javaResource.length()) + ".class"; //$NON-NLS-1$
} else if (javaResource != null && FileScanner.getIsDirectory()) {
return javaResource;
}
return null;
}
/**
* convert package format into groovy file name
*
* @param javaResource
* @return file
*/
private String getGroovyReference(String resourcePath) {
if (resourcePath != null) {
resourcePath = resourcePath.substring(0, resourcePath.lastIndexOf('.'));
return resourcePath.substring(resourcePath.lastIndexOf('.') + 1, resourcePath.length()) + ".groovy"; //$NON-NLS-1$
}
return null;
}
/**
* Finds java bean in an expression and returns the java file path
*
* @param expression
* @return file path
*/
private String findBeanReferenceInExpression(final String expression, final BpmnElement element,
final Collection issues) {
try {
final String filteredExpression = expression.replaceAll("[\\w]+\\.", ""); //$NON-NLS-1$ //$NON-NLS-2$
final TreeBuilder treeBuilder = new Builder();
final Tree tree = treeBuilder.build(filteredExpression);
final Iterable identifierNodes = tree.getIdentifierNodes();
final Set paths = new HashSet();
for (final IdentifierNode node : identifierNodes) {
if (RuntimeConfig.getInstance().getBeanMapping() != null) {
final String packagePath = RuntimeConfig.getInstance().getBeanMapping().get(node.getName());
if (packagePath != null) {
paths.add(packagePath);
}
}
}
if (!paths.isEmpty()) {
return getClassReference(paths.iterator().next());
}
} catch (final ELException e) {
throw new ProcessingException(
"el expression " + expression + " in " + element.getProcessDefinition() + ", element ID: " //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+ element.getBaseElement().getId() + " couldn't be parsed", //$NON-NLS-1$
e);
}
return null;
}
/**
* prepares an issue for script after check
*
* @param resourcePath
* @param element
* @param issues
*/
private void prepareScriptWarning(final String resourcePath, final BpmnElement element,
final Collection issues) {
if (resourcePath != null) {
if (!resourcesNewestVersions.contains(resourcePath)) {
issues.addAll(IssueWriter.createIssue(rule, CriticalityEnum.WARNING, resourcePath, element,
Messages.getString("VersioningChecker.8"))); //$NON-NLS-1$
}
}
}
/**
* prepares an issue for bean after check
*
* @param expression
* @param element
* @param issues
*/
private void prepareBeanWarning(final String expression, final BpmnElement element,
final Collection issues) {
final String beanReference = findBeanReferenceInExpression(expression, element, issues);
if (beanReference != null && !resourcesNewestVersions.contains(beanReference)) {
issues.addAll(IssueWriter.createIssue(rule, CriticalityEnum.WARNING, beanReference, element,
String.format(Messages.getString("VersioningChecker.9"), //$NON-NLS-1$
beanReference, expression)));
}
}
/**
* Prepares an issue for bean after check. Gets called only if the versioning scheme is directory based
*
* @param expression
* @param element
* @param issues
*/
private void prepareDirBasedBeanWarning(final String expression, final BpmnElement element,
final Collection issues) {
String beanReference = findBeanReferenceInExpression(expression, element, issues);
if (beanReference != null) {
beanReference = beanReference.replace(".", "\\"); //$NON-NLS-1$ //$NON-NLS-2$
beanReference = beanReference.substring(0, beanReference.lastIndexOf("\\")); //$NON-NLS-1$
beanReference = beanReference.replace("\\", "/");
if (!resourcesNewestVersions.contains(beanReference)) {
issues.add(IssueWriter.createIssueWithBeanRef(rule, CriticalityEnum.WARNING, element, beanReference,
String.format(Messages.getString("VersioningChecker.13"), beanReference))); //$NON-NLS-1$
}
}
}
/**
* Prepares an issue for class after check
*
* @param javaReference
* @param element
* @param issues
*/
private void prepareClassWarning(final String javaReference, final BpmnElement element,
final Collection issues) {
if (javaReference != null && !resourcesNewestVersions.contains(javaReference)) {
if (element.getBaseElement().getId() == null) {
issues.add(IssueWriter.createIssueWithJavaRef(rule, CriticalityEnum.WARNING, element, javaReference,
String.format(Messages.getString("VersioningChecker.14"), javaReference))); //$NON-NLS-1$
} else {
issues.add(IssueWriter.createIssueWithJavaRef(rule, CriticalityEnum.WARNING, element, javaReference,
String.format(Messages.getString("VersioningChecker.14"), javaReference))); //$NON-NLS-1$
}
}
}
/**
* Prepares an issue for class after check. Gets called only if the versioning scheme is directory based
*
* @param javaReference
* @param element
* @param issues
*/
private void prepareDirBasedClassWarning(String javaReference, final BpmnElement element,
final Collection issues) {
if (javaReference != null) {
javaReference = javaReference.replace(".", "\\"); //$NON-NLS-1$ //$NON-NLS-2$
javaReference = javaReference.substring(0, javaReference.lastIndexOf("\\")); //$NON-NLS-1$
if (!resourcesNewestVersions.contains(javaReference)) {
issues.addAll(IssueWriter.createIssue(rule, CriticalityEnum.WARNING, javaReference, element,
String.format(Messages.getString("VersioningChecker.19"), javaReference))); //$NON-NLS-1$
}
}
}
}
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