ClientServer

Project Overview

This project provides a mechanism for monitoring a directory for .properties files. When a new properties file appears, the client reads it, filters key-value pairs based on a configurable regular expression, and sends the filtered data to the server. The server then reconstructs the properties file from the received data and saves it to a directory.

Components

Client Program:

1. Monitors a specified directory for new .properties files.
2. Filters key-value pairs based on a regex pattern.
3. Sends the filtered data to a server.
4. Deletes the processed .properties file.

Server Program:

1. Listens for incoming data from clients.
2. Reconstructs a filtered properties file based on the received key-value pairs.
3. Saves the reconstructed file to a specified directory.

Requirements

• Java 17
• Maven (for building the project)
• A terminal/command line environment

Configuration

Both the client and server programs use separate configuration files to specify necessary values:

Client Config (client_config.properties):

• monitor.directory: Directory to monitor for new .properties files.
• key.filter.regex: Regular expression pattern to filter keys.
• server.address: Server address and port to send the data to (e.g., localhost:8080).

Server Config (server_config.properties):

• output.directory: Directory where the server will save reconstructed properties files.
• server.port: Port the server should listen on for incoming client connections.

Building and Running the Project

Build the project using Maven:

1. Clone the repository or download the source code.
2. Navigate to the ClientServer directory.
3. Run the following Maven command to clean and build the project:

   mvn clean package
   

Running the project in Terminal:

1. Navigate to the target directory
2. Edit the client_config.properties file with the appropriate settings for the monitored directory, key filtering pattern, and server address.
3. Edit the server_config.properties file with the appropriate settings for the server port and output directory.
4. Run the following commands in seperate terminals.

   java -cp properties-monitor-1.0-SNAPSHOT.jar learn.test.clientserver.Client /path/to/client_config.properties
   java -cp properties-monitor-1.0-SNAPSHOT.jar learn.test.clientserver.Server /path/to/server_config.properties