import java.io.*;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

public class QueryBatcher {

private final String configFilePath;

private final Map<String, List<String>> batchConfig;

public QueryBatcher(String configFilePath) {

this.configFilePath = configFilePath;

this.batchConfig = new HashMap<>();

loadConfig();

}

private void loadConfig() {

try (BufferedReader reader = new BufferedReader(new FileReader(configFilePath))) {

String line;

while ((line = reader.readLine()) != null) {

String[] parts = line.split(","); // Assuming comma-separated format: "batch_name,query1,query2,..."

if (parts.length >= 2) {

String batchName = parts[0].trim();

List<String> queries = new ArrayList<>();

for (int i = 1; i < parts.length; i++) {

queries.add(parts[i].trim());

}

batchConfig.put(batchName, queries);

}

}

} catch (IOException e) {

e.printStackTrace(); // Handle file not found or read errors appropriately.

}

}

public List<String> executeBatch(String batchName) {

// Retrieve queries for the specified batch

List<String> queries = batchConfig.get(batchName);

if (queries == null) {

return new ArrayList<>(); // Return empty list if batch not found.

}

return queries;

}

public static void main(String[] args) {

// Example usage

String configFile = "config.txt"; // Replace with your config file path

QueryBatcher batcher = new QueryBatcher(configFile);

// Example: Execute the "batch1" batch

List<String> batch1Queries = batcher.executeBatch("batch1");

System.out.println("Batch 1 Queries: " + batch1Queries);

//Example: Execute a batch that does not exist

List<String> nonExistentBatch = batcher.executeBatch("nonexistent");

System.out.println("Non existent batch: " + nonExistentBatch);

}

}