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LoadTester utility for benchmarking Membrane's performance … (#2441)
* feat: add LoadTester utility for benchmarking Membrane's performance and update README with test results and scalability details * **feat: enhance LoadTester concurrency support and update dependencies** - Updated `LoadTester` to include granular tracking of minimum semaphore permits during execution. - Configured `AsyncHttpClient` with custom timeouts and connection limits for enhanced control and scalability. - Replaced atomic LongAdder with AtomicInteger for better parallel execution tracking. - Fixed formatting and simplified constants for readability. - Upgraded `async-http-client` dependency from `2.12.3` to `3.0.4`. - Adjusted YAML examples in `README.md` and clarified `JsonSchemaGenerator` flow logic documentation. - Updated `ROADMAP.md` to reflect ongoing development goals. * refactor: minor * refactor: minor * refactor: minor * **feat: add documentation for Distribution Module and update assembly exclusion** - Introduced a `README.md` for the Distribution module with details on responsibilities, usage, and building process. - Updated `distribution.xml` to exclude `org.membrane-soa:membrane-api-gateway` from final ZIP packaging. * chore: clarify ROADMAP note on WebSocketInterceptor.flow renaming * refactor: restructure package structure for Distribution Module - Moved `FilterExamples`, `LoadTester`, and `IDEStarter` classes to new `com.predic8.membrane.build` and `com.predic8.membrane.devtools` packages. - Updated `distribution.xml` to include proper module exclusions. - Adjusted POM dependencies and plugin configurations, ensuring consistency with the new package structure. - Updated README to reflect the changes in package organization. * feat: add IDE starter instructions and logging configuration to Distribution Module - Updated `README.md` with steps for running Membrane in IDE and locating log configuration. - Added Log4j dependencies with `provided` scope to `pom.xml`. - Moved `log4j2.xml` configuration to the correct resources directory. - Simplified log configuration initialization in `IDEStarter`. * chore: remove redundant parent and unused dependencies from distribution pom.xml * refactor: update LoadTester concurrency settings and package structure - Reduced `CONCURRENCY` from 15000 to 200 in `LoadTester`. - Updated package from `com.predic8.membrane.devtools` to `com.predic8.membrane.load`. - Adjusted `pom.xml` dependencies, changing `async-http-client` scope from `provided` to `test`. * refactor: adjust Log4j dependencies across modules - Moved Log4j dependencies to appropriate locations in `annot/pom.xml` and `distribution/pom.xml`. - Organized test dependencies to ensure separation and clarity in `annot` module. - Improved indentation and comments in `distribution/pom.xml` for better readability. * refactor: enhance `annot/pom.xml` formatting and dependency organization - Improved XML indentation for better readability. - Reorganized dependencies, ensuring logical grouping and clarified test dependencies. - Adjusted comments for consistency and clarity. * refactor: set Log4j dependencies to test scope in `annot/pom.xml` for better organization * fix: upgrade jsonassert dependency in `distribution/pom.xml` from 1.5.1 to 1.5.3 * refactor: reorganize dependencies in `core/pom.xml` and enhance logging configuration - Reorganized dependencies in `core/pom.xml` for improved clarity and logical grouping. - Added Log4j2 configuration file `log4j2.xml` in `distribution/conf`. - Adjusted dependency scopes for better separation between provided and test libraries. - Introduced rolling file logging and ANSI color support in the logging setup. * chore: update dependencies in `core/pom.xml` - Upgraded `graal-sdk` to 24.2.0, `mongodb-driver-sync` to 5.6.2, and `activemq-broker` to 5.19.1. * chore: centralize GraalVM version in `core/pom.xml` properties - Added `graalvm.version` property for consistent version management. - Updated `graal-sdk` and `graalvm.js` dependencies to use the centralized property.
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‎README.md‎

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<img src="docs/images/api-gateway-demo.gif" alt="Animated demo of Membrane API Gateway" width="800">
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Lightweight **API Gateway** for **REST**, **GraphQL** and **legacy SOAP Web Services**, easily extended with powerful plugins and Java.
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Lightweight **API Gateway** for **REST**, **GraphQL** and **legacy Web Services**, easily extended with powerful plugins.
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Solve complex API requirements with simple configurations.
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Based on the Java platform, Membrane integrates smoothly with major enterprise technologies. Load tests show that Java provides an excellent foundation for high performance and scalability. On a 2021 MacBook Pro, Membrane handles more than 20,000 requests per second, supports up to 10,000 concurrent clients, and can host over 100,000 APIs on a single instance.
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The following YAML configuration samples require Membrane version 7.0.0 or newer.
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The examples below demonstrate how to address a wide range of API Gateway requirements using simple configurations. Version **7.0.0 or newer** is required.
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**Forwarding Requests from Port 2000 to a Backend:**
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The following example generates a JSON response and sends it directly to the client:
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```yaml
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spec:
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api:
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port: 2000
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flow:
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- javascript:
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...or into XML:
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```yaml
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spec:
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api:
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port: 2000
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flow:
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- request:

‎annot/pom.xml‎

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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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--><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>service-proxy-annot</artifactId>
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<name>${project.artifactId}</name>
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<packaging>jar</packaging>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>service-proxy-annot</artifactId>
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<name>${project.artifactId}</name>
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<packaging>jar</packaging>
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<parent>
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<groupId>org.membrane-soa</groupId>
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<version>7.0.5-SNAPSHOT</version>
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</parent>
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<dependencies>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-beans</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-context</artifactId>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-api</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-engine</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-slf4j2-impl</artifactId>
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</dependency>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-core</artifactId>
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</dependency>
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<dependencies>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-beans</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-context</artifactId>
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</dependency>
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>2.0.0</version>
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</dependency>
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<!-- Test dependencies -->
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-slf4j2-impl</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-core</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-api</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-engine</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.hamcrest</groupId>
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<artifactId>hamcrest</artifactId>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<!-- Disable annotation processing for ourselves. -->
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<compilerArgument>-proc:none</compilerArgument>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<build>
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<plugins>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<!-- Disable annotation processing for ourselves. -->
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<compilerArgument>-proc:none</compilerArgument>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

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