wsCaller

wsCaller is a lightweight Java library for making secure and generic web service calls without the need to generate stubs or rely on complex frameworks. It is designed to streamline interactions with SOAP-based web services while providing a customizable and testable architecture.

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Features

• Generic Web Service Calls: Supports secure, synchronous SOAP-based service calls.
• Customizable Authentication: Allows secure headers with username and password.
• Testability: Includes extensible mechanisms to mock or stub service calls for unit testing.
• Minimal Dependencies: Built with simplicity and maintainability in mind.

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Getting Started

Prerequisites

To use wsCaller, ensure you have the following installed:

• Java 8 or later
• Apache Maven
• Access to a SOAP-based web service

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Installation

1. Clone the repository:

   git clone https://github.com/mmilk23/wsCaller.git
   cd wsCaller

2. Build the project using Maven:

   mvn clean install

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Usage

Example: Making a Secure Web Service Call

Below is an example of how to use wsCaller to make a secure SOAP request:

import com.milklabs.wscall.SecureWebServiceCaller;
import org.apache.axis2.addressing.EndpointReference;

import java.util.HashMap;
import java.util.Map;

public class Main {
    public static void main(String[] args) {
        try {
            // Create a web service caller
            SecureWebServiceCaller caller = new SecureWebServiceCaller(
                    new EndpointReference("http://example.com/service"),
                    "http://example.com/namespace",
                    "prefix"
            );

            // Define parameters for the service call
            Map<String, Object> params = new HashMap<>();
            params.put("param1", "value1");

            // Make the web service call
            String response = caller.chamarWebService("methodName", params, "username", "password");

            // Process the response
            System.out.println("Response: " + response);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

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Testing

The project includes unit tests for key components. Tests are written using JUnit 5.

To run the tests, execute:

mvn test

Mocking and Stubs

The library includes a ServiceClientWrapperStub class to facilitate testing without connecting to a live web service. This enables testing various scenarios, such as exceptions or specific responses.

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Project Structure

wsCaller/
├── src/main/java/com/milklabs/wscall
│   ├── SecureWebServiceCaller.java       # Core class for making web service calls
│   ├── ServiceClientWrapper.java         # Wrapper for the Axis2 ServiceClient
│   └── util                              # Utility classes
├── src/test/java/com/milklabs/wscall
│   ├── SecureWebServiceCallerTest.java   # Unit tests for the core functionality
│   ├── ServiceClientWrapperStub.java     # Stub class for testing

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Dependencies

• Apache Axis2: Core dependency for SOAP-based web service calls.
• JUnit 5: Testing framework.
• Log4j: For logging.

Add the following dependencies to your Maven pom.xml:

<dependencies>
    <dependency>
        <groupId>org.apache.axis2</groupId>
        <artifactId>axis2</artifactId>
        <version>1.8.2</version>
    </dependency>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter</artifactId>
        <version>5.10.0</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
</dependencies>

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Contributing

Contributions are welcome! Please fork the repository, make changes, and submit a pull request.

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License

This project is licensed under the MIT License. See the LICENSE file for details.

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Contact

For any inquiries or support, feel free to contact the project maintainer:

• GitHub: @mmilk23

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