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Usage

The Static Code Analysis Tools is a Maven plugin that executes the Maven plugins for SpotBugs, Checkstyle and PMD and generates a merged .html report.

Add the following profiles to your pom.xml:

  <profile>
    <id>check</id>
    <build>
      <pluginManagement>
        <plugins>
          <plugin>
            <groupId>org.openhab.tools.sat</groupId>
            <artifactId>sat-plugin</artifactId>
            <version>${sat.version}</version>
            <executions>
              <execution>
                <phase>verify</phase>
                <goals>
                  <goal>checkstyle</goal>
                  <goal>pmd</goal>
                  <goal>spotbugs</goal>
                  <goal>report</goal>
                </goals>
              </execution>
            </executions>
          </plugin>
        </plugins>
      </pluginManagement>
    </build>
  </profile>
  <profile>
    <id>check-bundles</id>
    <activation>
      <file>
        <exists>src</exists>
      </file>
    </activation>
    <build>
      <plugins>
        <plugin>
            <groupId>org.openhab.tools.sat</groupId>
            <artifactId>sat-plugin</artifactId>
        </plugin>
      </plugins>
    </build>
  </profile>

Execute mvn clean install -P check from the root of your project.

Reports are generated for each module individually and can be found in the target/code-analysis directory:

Individual report

The summary report can be found in the root target directory:

Summary report

The build will fail if a problem with high priority is found by some of the Maven plugins for PMD, Checkstyle and SpotBugs. Each of the plugins has its own way to prioritize the detected problems:

  • for PMD - the build will fail when a rule with Priority "1" is found;
  • for Checkstyle - a rule with severity="Error";
  • for SpotBugs - any Matcher with Rank between 1 and 4.

Maven plugin goals and parameters

The Static Analysis tool includes several goals:

Below you can find detailed information what each goal does and how it can be configured.

sat-plugin:pmd

Description: Executes the maven-pmd-plugin goal pmd with a ruleset file and configuration properties

Parameters:

Name Type Description
pmdRuleset String Relative path of the XML configuration to use. If not set the default ruleset file will be used
pmdFilter String Relative path of a suppression.properties file that lists classes and rules to be excluded from failures. If not set no classes and no rules will be excluded
maven.pmd.version String The version of the maven-pmd-plugin that will be used (Default value is 3.24.0)
pmdPlugins List A list with artifacts that contain additional checks for PMD

sat-plugin:checkstyle

Description: Executes the maven-checkstyle-plugin goal checkstyle with a ruleset file and configuration properties

Parameters:

Name Type Description
checkstyleRuleset String Relative path of the XML configuration to use. If not set the default ruleset file will be used
checkstyleFilter String Relative path of the suppressions XML file to use. If not set the default filter file will be used
maven.checkstyle.version String The version of the maven-checkstyle-plugin that will be used (default value is 3.4.0)
checkstylePlugins List A list with artifacts that contain additional checks for Checkstyle
checkstyleProperties String Relative path of the properties file to use in the ruleset to configure specific checks

sat-plugin:spotbugs

Description: Executes the spotbugs-maven-plugin goal spotbugs with a ruleset file and configuration properties

Parameters:

Name Type Description
spotbugsRuleset String Relative path to the XML that specifies the bug detectors which should be run. If not set the default file will be used
spotbugsInclude String Relative path to the XML that specifies the bug instances that will be included in the report. If not set the default file will be used
spotbugsExclude String Relative path to the XML that specifies the bug instances that will be excluded from the report. If not set the default file will be used
maven.spotbugs.version String The version of the spotbugs-maven-plugin that will be used (default value is 4.8.6.2)
spotbugs.version String The version of SpotBugs that will be used (default value is 4.8.6)
spotbugsPlugins List A list with artifacts that contain additional detectors/patterns for SpotBugs
findbugs.slf4j.version String The version of the findbugs-slf4j plugin that will be used (default value is 1.5.0)

sat-plugin:report

Description: Transforms the results from SpotBugs, Checkstyle and PMD into a single HTML Report with XSLT

Parameters:

Name Type Description
report.targetDir String The directory where the individual report will be generated (default value is ${project.build.directory}/code-analysis)
report.summary.targetDir String The directory where the summary report, containing links to the individual reports will be generated (Default value is ${session.executionRootDirectory}/target)
report.fail.on.error Boolean Describes of the build should fail if high priority error is found (Default value is true)
report.in.maven Boolean Enable/Disable maven console logging of all messages (Default value is true)

Customization

Different sets of checks can be executed on different types of projects.

The tool executes different checks on OSGi bundles and openHAB add-ons. It uses default configuration files for SpotBugs, Checkstyle and PMD that are stored in sat-plugin/src/main/resources/configuration.

If you want to use a custom set of rules you will have to set the configuration parameters for the individual MOJOs. An example configuration may look like this;

  <plugin>
    <groupId>org.openhab.tools.sat</groupId>
    <artifactId>sat-plugin</artifactId>
    <configuration>
      <checkstyleRuleset>build-tools/checkstyle/addon.xml</checkstyleRuleset>
      <checkstyleFilter>build-tools/checkstyle/suppressions.xml</checkstyleFilter>
      <pmdRuleset>build-tools/pmd/addon.xml</pmdRuleset>
      <pmdFilter>build-tools/pmd/suppressions.properties</pmdFilter>
      <spotbugsInclude>build-tools/spotbugs/addon.xml</spotbugsInclude>
      <spotbugsExclude>build-tools/spotbugs/exclude.xml</spotbugsExclude>
      <spotbugsRuleset>build-tools/spotbugs/visitors.xml</spotbugsRuleset>
    </configuration>
  </plugin>

Information about the syntax of the configuration files (except the visitors.xml) can be found on the web pages of the individual plugins.

The visitors.xml contains a list with SpotBugs visitors (bug detectors) and has the following syntax:

<?xml version="1.0" encoding="UTF-8"?>
<visitors>
  <visitor>AtomicityProblem</visitor>
  ...
<visitors/>

Individual plugin customization

Each of the Maven plugins that are used (for SpotBugs, Checkstyle and PMD) are configured by setting user properties that are located in the sat-plugin/src/main/resources/configuration directory.

You can refer to the following links for more configuration options for the specific Maven plugins:

Reuse Checks

PMD, Checkstyle and SpotBugs come with a set of custom rules that can be used directly in a rule set.

Helpful resources with lists of the available checks and information how to use them: