IBM AS/400 ISeries MCP Server
This project implements a customizable MCP server to execute RTE protocol.
Example
Development
Requirements
- Java 21+*
Run
- Compile project
./mvnw clean package
- Run server on SSE mode
- Run server on STDIO mode
RteUtils
The intention of this project is to be easily extensible. You can add your own MCP tools by
using RteUtils
class.
Also is needed to define the RTE connection parameters and the RTE flow in a yaml format.
RteUtils
has the following methods implemented:
static RteProtocolClient connect(RteConfig config)
: Connects to the RTE server using the provided yaml.static String executeSteps(RteProtocolClient client, List<RteStep> steps)
: Executes the provided steps on the RTE server and returns the screen result as a string using the provided yaml.
The method exposed as MCP tool should be annotated as @Tool
and the class should be annotated as @Services
like in the
followig example:
The yaml defines the connection parameters and the steps to execute in the RTE server. This * yaml* file should have the following structure
Any number the steps can be defined in the yaml file.
- server: The server address to connect to the RTE server.
- port: The port to connect to the RTE server.
- protocol: The supported protocols are TN5250, TN3270 and VT420
- terminalType: The following table shows the supported terminal types for each protocol:
Protocol Terminal Type TN5250 IBM-3477-FC: 27x132 IBM-3179-2: 24x80 TN3270 IBM-3278-M2: 24x80 IBM-3278-M2-E: 24x80 IBM-3278-M3: 32x80 IBM-3278-M3-E: 32x80 IBM-3278-M4: 43x80 IBM-3278-M4-E: 43x80 IBM-3278-M5: 27x132 IBM-3278-M5-E: 27x132 VT420 VT420-7: 24x80 - sslType: The supported ssl types are None TLS and SSLv3.
- steps: A list of actions representing the steps to execute in the RTE server.
- actions: All the actions to execute in the current screen, any number of pairs label/input
could be added.
- label: The label of the field to fill in the RTE screen.
- input: The value to fill in the field.
- attentionKey: The key to press after filling the fields, it can be ENTER, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, F13, F14, F15, F16, F17, F18, F19, F20, F21, F22, F23, F24, ATTN, CLEAR, SYSRQ, RESET, ROLL_UP, ROLL_DN, PA1, PA2 or PA3.
Testing
An example of integration test is provided in the RteServiceLoginToolTest
class, this test uses
the MCPClient
validate the list of tools and execute it.
note: to test the behaving of to tool is recommended to generate a dump of the RTE flow to be executed and mock it using wiresham
More information on how to test and debug the server could be found here
This server cannot be installed
remote-capable server
The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.
This project implements a customizable MCP server to execute RTE protocol.
The intention of this project is to be easily extensible. You can add your own MCP tools by using RteUtils class.
Also is needed to define the RTE connection parameters and the RTE flow in a yaml format.
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