Web services engine
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This document compares and evaluates several popular web services frameworks: Apache Axis2, Apache CXF, and Spring WS. It finds that Apache CXF is the most widely used standard now and an improvement over Axis2. CXF is intuitive, supports key standards, has best performance, and is compatible with Spring. It recommends CXF as the preferred framework.
Web services engine
- 1. June 21, 2017 www.snipe.co.in 1 Prepared :Snipe Team
- 2. June 21, 2017 2 Web Services engine
- 3. June 21, 2017 3 Agenda •Web Services engine -Apache Axis2 - Key Positives & Key Concerns - Apache CXF -Key Positives & Key Concerns - Spring WS -Key Positives & Key Concerns •Scorecard •Conclusion
- 4. June 21, 2017 4 Apache Axis2 •Apache Axis2 •As explained earlier is a completely re-written version of the famous Apache Axis SOAP stack. • Apache Axis2 is a core engine for Web services. • It is a complete re-design and re-write of the widely used Apache Axis SOAP stack. Implementations of Axis2 are available in Java and C. • Axis2 provides the capability to add Web services interfaces to Web applications. It can also function as a standalone server application.
- 5. June 21, 2017 5 Apache Axis2 •Apache Axis2 Key Positives • Most Commonly Used, Matured & Stable Web Services Development Framework. • Supports Multiple Languages (C++, Java). • Supports both Contract-first & Contract-last Approach. • In context of Orchestration & Web Services Transaction (long- running transactions) it supports wide variety of related WS-* specifications: WS-Atomic Transaction, WS-Business Activity, WS-Coordination, WS-Eventing, WS-Transfer Compatible with Spring Framework.
- 6. June 21, 2017 6 Apache Axis2 •Apache Axis2 Key Concerns •Comparatively More Code Required/Generated w.r.t. Spring WS/CXF •Is being phased out gradually (mostly by Apache CXF) •It is not fully compliant for JAX-WS JAX-RS
- 7. June 21, 2017 7 Apache CXF • Apache CXF • The project is a merger between two open source projects namely Celtix developed by IONA technologies and XFire developed by Codehaus.
- 8. June 21, 2017 8 Key Positives & Key Concerns • Apache CXF Key Positives •Most widely used Web Services Standard Now; Improvement over AXIS2, which is now gradually being replaced by Apache CXF. • Intuitive & Easy to Use (less coding required as compared to AXIS2). •Clean separation of front-ends, like JAX-WS, from the core code. •Fully compliant with JAX-WS, JAX-RS & others. •Best Performance across all available framework with minimum computation overhead. •Supports wide variety of front-end models. •Supports both JAX-WS & JAX-RS (for Restful Services). •Supports JBI & SDO (not supported in AXIS2). •Compatible with Spring Framework.
- 9. June 21, 2017 9 Key Positives & Key Concerns • Apache CXF Key Concerns •Key Concerns. •Does not support Orchestration & WS Transactions yet. •Does not support WSDL 2.0 yet.
- 10. June 21, 2017 10 Key Positives & Key Concerns • Spring WS Key Positives •Best in terms of supporting Contract-first Web Services Development Approach. •Enforces Standards & Best Practices by Framework Constraints (no way out of it & hence limitation as well). •Supports Spring Annotations as well as JAX-WS. •Least code from developer’s perspective. •Best Aligned with Spring Technology Stack (also similar architectural stack as Spring MVC) including Spring Security.
- 11. June 21, 2017 11 Key Positives & Key Concerns • Spring WS Key Concerns •Least number of WS-* Specifications supported (does not fully compliant with JAX-WS). •Spring offers itself as standard & hence other Java-compliant frameworks support better standards support. •Only support Contract-first Web Services Development Model.
- 12. June 21, 2017 12 Scorecard • Overall
- 13. June 21, 2017 13 Scorecard • fw-eval
- 14. June 21, 2017 14 Conclusion • Conclusion • Apache AXIS2 is relatively most used framework but Apache CXF scores over other Web Services Framework comparatively considering ease of development, current industry trend, performance, overall scorecard and other features (unless there is Web Services Orchestration support is explicitly needed, which is not required here) •Though Spring Core Framework is an established technology, Spring Web Services is still evolving in comparison with Apache CXF and CXF has wider support of standards and proven framework from performance perspective. •Hence, Apache CXF is the recommended framework and clearly the most preferred.