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feat(spi): adds implementation-neutral SPI module #178

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de986d2
feat: adds mcp-spi
Aliaksie Apr 21, 2025
cd74509
feat: adds mcp-schema-jackson
Aliaksie Apr 23, 2025
58173e5
extracts McpClient/McpServer abstraction into mcp-spi
Aliaksie May 5, 2025
f18f2ed
adds McpLogger
Aliaksie May 6, 2025
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18 changes: 16 additions & 2 deletions mcp-bom/pom.xml
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Expand Up @@ -26,10 +26,24 @@

<dependencyManagement>
<dependencies>
<!-- Core MCP -->
<!-- MCP Spec -->
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp</artifactId>
<artifactId>mcp-spi</artifactId>
<version>${project.version}</version>
</dependency>

<!-- MCP Jacson Schema -->
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-schema-jackson</artifactId>
<version>${project.version}</version>
</dependency>

<!-- MCP Reactor -->
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-reactor</artifactId>
<version>${project.version}</version>
</dependency>

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31 changes: 31 additions & 0 deletions mcp-logging-slf4j/pom.xml
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@@ -0,0 +1,31 @@
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-parent</artifactId>
<version>0.10.0-SNAPSHOT</version>
</parent>

<artifactId>mcp-logging-slf4j</artifactId>
<packaging>jar</packaging>
<name>Java SDK MCP SLF4J</name>
<description>Java SDK Logging SLF4J of the Model Context Protocol</description>
<url>https://github.com/modelcontextprotocol/java-sdk</url>

<dependencies>
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-spi</artifactId>
<version>${project.version}</version>
</dependency>

<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j-api.version}</version>
</dependency>
</dependencies>
</project>
46 changes: 46 additions & 0 deletions mcp-logging-slf4j/src/main/java/io/modelcontextprotocol/logger/Slf4jMcpLogger.java
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/*
* Copyright 2025-2025 the original author or authors.
*/

package io.modelcontextprotocol.logger;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
* @author Aliaksei Darafeyeu
*/
public class Slf4jMcpLogger implements McpLogger {

private final Logger delegate;

public Slf4jMcpLogger(Class<?> clazz) {
this.delegate = LoggerFactory.getLogger(clazz);
}

@Override
public void debug(final String message) {
delegate.debug(message);
}

@Override
public void info(final String message) {
delegate.info(message);
}

@Override
public void warn(final String message) {
delegate.warn(message);
}

@Override
public void warn(final String message, final Throwable t) {
delegate.warn(message, t);
}

@Override
public void error(final String message, final Throwable t) {
delegate.error(message, t);
}

}
2 changes: 1 addition & 1 deletion mcp/README.md → mcp-reactor/README.md
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@@ -1,5 +1,5 @@
# Java MCP SDK

Java SDK implementation of the Model Context Protocol, enabling seamless integration with language models and AI tools.
Java SDK Reactor implementation of the Model Context Protocol, enabling seamless integration with language models and AI tools.
For comprehensive guides and API documentation, visit the [MCP Java SDK Reference Documentation](https://modelcontextprotocol.io/sdk/java/mcp-overview).

114 changes: 30 additions & 84 deletions mcp/pom.xml → mcp-reactor/pom.xml
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Expand Up @@ -8,10 +8,10 @@
<artifactId>mcp-parent</artifactId>
<version>0.10.0-SNAPSHOT</version>
</parent>
<artifactId>mcp</artifactId>
<artifactId>mcp-reactor</artifactId>
<packaging>jar</packaging>
<name>Java MCP SDK</name>
<description>Java SDK implementation of the Model Context Protocol, enabling seamless integration with language models and AI tools</description>
<name>Java SDK MCP Reactor</name>
<description>Java SDK Reactor implementation of the Model Context Protocol, enabling seamless integration with language models and AI tools</description>
<url>https://github.com/modelcontextprotocol/java-sdk</url>

<scm>
Expand Down Expand Up @@ -65,61 +65,53 @@
</build>

<dependencies>

<!--MCP-->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j-api.version}</version>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-spi</artifactId>
<version>${project.version}</version>
</dependency>

<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-schema-jackson</artifactId>
<version>${project.version}</version>
</dependency>

<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-core</artifactId>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp-logging-slf4j</artifactId>
<version>${project.version}</version>
</dependency>

<!--Reactor-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springframework.version}</version>
<scope>test</scope>
<groupId>org.reactivestreams</groupId>
<artifactId>reactive-streams</artifactId>
</dependency>


<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty-http</artifactId>
<scope>test</scope>
</dependency>

<!-- The Spring Context is required due to the reactor-netty connector being dependent on
the Spring Lifecycle, as discussed here:
https://github.com/spring-projects/spring-framework/issues/31180 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${springframework.version}</version>
<scope>test</scope>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-core</artifactId>
</dependency>

<!-- Used by the HttpServletSseServerTransport -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${springframework.version}</version>
<scope>test</scope>
<groupId>jakarta.servlet</groupId>
<artifactId>jakarta.servlet-api</artifactId>
<version>${jakarta.servlet.version}</version>
<scope>provided</scope>
</dependency>

<!--For test-->
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assert4j.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testcontainers</groupId>
<artifactId>testcontainers</artifactId>
<version>${testcontainers.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
Expand All @@ -138,70 +130,24 @@
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>

<!-- Mockito cannot mock this class: class java.net.http.HttpClient. the bytebuddy helps. -->
<dependency>
<groupId>net.bytebuddy</groupId>
<artifactId>byte-buddy</artifactId>
<version>${byte-buddy.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testcontainers</groupId>
<artifactId>junit-jupiter</artifactId>
<version>${testcontainers.version}</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<version>${awaitility.version}</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>net.javacrumbs.json-unit</groupId>
<artifactId>json-unit-assertj</artifactId>
<version>${json-unit-assertj.version}</version>
<scope>test</scope>
</dependency>


<!-- Used by the HttpServletSseServerTransport -->
<dependency>
<groupId>jakarta.servlet</groupId>
<artifactId>jakarta.servlet-api</artifactId>
<version>${jakarta.servlet.version}</version>
<scope>provided</scope>
</dependency>

<!-- Tomcat dependencies for testing -->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-core</artifactId>
<version>${tomcat.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-websocket</artifactId>
<version>${tomcat.version}</version>
<scope>test</scope>
</dependency>

</dependencies>


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