Red Hat Training

A Red Hat training course is available for Red Hat Application Migration Toolkit

Chapter 3. Review the Reports

The report examples shown in the following sections are a result of analyzing the com.acme and org.apache packages in the jee-example-app-1.0.0.ear example application, which is located in the RHAMT GitHub source repository. The report was generated using the following command.

$ RHAMT_HOME/bin/rhamt-cli --input /home/username/rhamt-cli-source/test-files/jee-example-app-1.0.0.ear/ --output /home/username/rhamt-cli-reports/jee-example-app-1.0.0.ear-report --target eap:6 --packages com.acme org.apache

Use a browser to open the index.html file located in the report output directory. This opens a landing page that lists the applications that were processed. Each row contains a high-level overview of the story points, number of incidents, and technologies encountered in that application.

Figure 3.1. Application List

Application List
Note

The incidents and estimated story points change as new rules are added to RHAMT. The values here may not match what you see when you test this application.

The following table lists all of the reports and pages that can be accessed from this main RHAMT landing page. Click on the name of the application, jee-example-app-1.0.0.ear, to view the application report.

PageHow to Access

Application

Click on the name of the application.

Archives shared by multiple applications

Click on the Archives shared by multiple applications link. Note that this link is only available when there are shared archives across multiple applications.

Rule Providers Execution Overview

Click on the Rule providers execution overview link at the bottom of the page.

Used FreeMarker Functions and Directives

Click on the FreeMarker methods link at the bottom of the page.

Send Feedback form

Click on the Send Feedback link in the top navigation bar to open a form that allows you to submit feedback to the RHAMT team.

Note that if an application shares archives with other analyzed applications, you will see a breakdown of how many story points are from shared archives and how many are unique to this application.

Figure 3.2. Shared Archives

Shared Archives

Information about the archives that are shared among applications can be found in the Archives Shared by Multiple Applications reports.

3.1. Application Report

3.1.1. Dashboard

Access this report from the report landing page by clicking on the application name in the Application List.

The dashboard gives an overview of the entire application migration effort. It summarizes:

  • The incidents and story points by category
  • The incidents and story points by level of effort of the suggested changes
  • The incidents by package

Figure 3.3. Dashboard

Dashboard

The top navigation bar lists the various reports that contain additional details about the migration of this application. Note that only those reports that are applicable to the current application will be available.

ReportDescription

Issues

Provides a concise summary of all issues that require attention.

Application Details

Provides a detailed overview of all resources found within the application that may need attention during the migration.

Unparsable

Shows all files that RHAMT could not parse in the expected format. For instance, a file with a .xml or .wsdl suffix is assumed to be an XML file. If the XML parser fails, the issue is reported here and also where the individual file is listed.

Dependencies

Displays all Java-packaged dependencies found within the application.

Remote Services

Displays all remote services references that were found within the application.

EJBs

Contains a list of EJBs found within the application.

JBPM

Contains all of the JBPM-related resources that were discovered during analysis.

JPA

Contains details on all JPA-related resources that were found in the application.

Hibernate

Contains details on all Hibernate-related resources that were found in the application.

Server Resources

Displays all server resources (for example, JNDI resources) in the input application.

Spring Beans

Contains a list of Spring beans found during the analysis.

Hard-coded IP Addresses

Provides a list of all hard-coded IP addresses that were found in the application.

Ignored Files

Lists the files found in the application that, based on certain rules and RHAMT configuration, were not processed. See the --userIgnorePath option for more information.

About

Describes the current version of RHAMT and provides helpful links for further assistance.

3.1.2. Application Details Report

Access this report from the dashboard by clicking the Application Details link.

The report lists the story points, the Java incidents by package, and a count of the occurrences of the technologies found in the application. Next is a display of application messages generated during the migration process. Finally, there is a breakdown of this information for each archive analyzed during the process.

Figure 3.4. Application Details Report

Application Details Report

Expand the jee-example-app-1.0.0.ear/jee-example-services.jar to review the story points, Java incidents by package, and a count of the occurrences of the technologies found in this archive. This summary begins with a total of the story points assigned to its migration, followed by a table detailing the changes required for each file in the archive. The report contains the following columns.

Column NameDescription

Name

The name of the file being analyzed.

Technology

The type of file being analyzed, for example, Decompiled Java File or Properties.

Issues

Warnings about areas of code that need review or changes.

Story Points

Level of effort required to migrate the file. See Rule Story Points for more details.

Note that if an archive is duplicated several times in an application, it will be listed just once in the report and will be tagged with [Included Multiple Times].

Figure 3.5. Duplicate Archive in an Application

Duplicate Archive

The story points for archives that are duplicated within an application will be counted only once in the total story point count for that application.

3.1.3. Source Report

The analysis of the jee-example-services.jar lists the files in the JAR and the warnings and story points assigned to each one. Notice the com.acme.anvil.listener.AnvilWebLifecycleListener file, at the time of this test, has 22 warnings and is assigned 16 story points. Click on the file link to see the detail.

  • The Information section provides a summary of the story points.
  • This is followed by the file source code. Warnings appear in the file at the point where migration is required.

In this example, warnings appear at various import statements, declarations, and method calls. Each warning describes the issue and the action that should be taken.

Figure 3.6. Source Report

Source Report

3.2. Archives Shared by Multiple Applications

Access these reports from the report landing page by clicking the Archives shared by multiple applications link. Note that this link is only available if there are applicable shared archives.

Figure 3.7. Archives Shared by Multiple Applications

Archives Shared by Multiple Applications

This allows you to view the detailed reports for all archives that are shared across multiple applications.

3.3. Rule Provider Execution Overview

Access this report from the report landing page by clicking the Rule providers execution overview link.

This report provides the list of rules that executed when running the RHAMT migration command against the application.

Figure 3.8. Rule Provider Execution Overview

Rule Provider Execution Overview

3.4. Used FreeMarker Functions and Directives

Access this report from the report landing page by clicking the Red Hat Application Migration Toolkit FreeMarker methods link.

This report lists all the registered functions and directives that were used to build the report. It is useful for debugging purposes or if you plan to build your own custom report.

Figure 3.9. FreeMarker Functions and Directives

FreeMarker Functions and Directives

3.5. Send Feedback Form

Access this feedback form from the report landing page by clicking the Send feedback link.

This form allows you to rate the product, talk about what you like, and make suggestions for improvements.

Figure 3.10. Send Feedback Form

Feedback Form