import io.minio.MinioClient;
import io.minio.errors.MinioException;
import java.io.ByteArrayInputStream;
import java.io.IOException;
public class MinioUploader {
    private MinioClient minioClient;
    public MinioUploader(String endpoint, String accessKey, String secretKey) {
        this.minioClient = MinioClient.builder()
                .endpoint(endpoint)
                .credentials(accessKey, secretKey)
                .build();
    }
    public void uploadFile(String bucketName, String objectName, byte[] content) 
        throws MinioException, IOException {
        ByteArrayInputStream inputStream = new ByteArrayInputStream(content);
        minioClient.putObject(
            PutObjectArgs.builder().bucket(bucketName).object(objectName).stream(
                    inputStream, inputStream.available(), -1)
                    .build());
        inputStream.close();
    }
    public static void main(String[] args) {
        try {
            MinioUploader uploader = new MinioUploader("http://192.168.0.200:9000", 
            "your-access-key", "your-secret-key");
            byte[] content = "Hello, MinIO!".getBytes();
            uploader.uploadFile("my-bucket", "my-object", content);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import java.util.SortedMap;
import java.util.TreeMap;
public class ConsistentHashing {
    private final SortedMap<Integer, String> circle = new TreeMap<>();
    public void addNode(String node) {
        int hash = node.hashCode();
        circle.put(hash, node);
    }
    public String getNode(String key) {
        if (circle.isEmpty()) {
            return null;
        }
        int hash = key.hashCode();
        if (!circle.containsKey(hash)) {
            SortedMap<Integer, String> tailMap = circle.tailMap(hash);
            hash = tailMap.isEmpty() ? circle.firstKey() : tailMap.firstKey();
        }
        return circle.get(hash);
    }
    public static void main(String[] args) {
        ConsistentHashing ch = new ConsistentHashing();
        ch.addNode("192.168.0.200:9000");
        ch.addNode("192.168.0.201:9000");
        ch.addNode("192.168.0.202:9000");
        ch.addNode("192.168.0.203:9000");
        String node = ch.getNode("my-object");
        System.out.println("Node for my-object: " + node);
    }
}

public class MinioUploaderWithHashing {
    private final ConsistentHashing consistentHashing = new ConsistentHashing();
    public MinioUploaderWithHashing() {
        consistentHashing.addNode("http://192.168.0.200:9000");
        consistentHashing.addNode("http://192.168.0.201:9000");
        consistentHashing.addNode("http://192.168.0.202:9000");
        consistentHashing.addNode("http://192.168.0.203:9000");
    }
    public void uploadFile(String bucketName, String objectName, byte[] content) 
        throws MinioException, IOException {
        String node = consistentHashing.getNode(objectName);
        if (node == null) {
            throw new RuntimeException("No available node found");
        }
        MinioUploader uploader = new MinioUploader(node, "your-access-key", "your-secret-key");
        uploader.uploadFile(bucketName, objectName, content);
    }
    public static void main(String[] args) {
        try {
            MinioUploaderWithHashing uploader = new MinioUploaderWithHashing();
            byte[] content = "Hello, MinIO with Consistent Hashing!".getBytes();
            uploader.uploadFile("my-bucket", "my-object", content);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import java.io.*;
import java.util.*;
public class DataShardingAndRedundancy {
    private static final int SHARD_SIZE = 1024 * 1024; // 1MB
    private static final int DATA_SHARDS = 4;
    private static final int PARITY_SHARDS = 2;
    private static final int TOTAL_SHARDS = DATA_SHARDS + PARITY_SHARDS;
    public static void main(String[] args) throws IOException {
        String filePath = "path/to/large/file";
        byte[] fileData = readFile(filePath);
        List<byte[]> shards = shardFile(fileData);
        List<byte[]> encodedShards = encodeShards(shards);
        for (int i = 0; i < TOTAL_SHARDS; i++) {
            String shardPath = "path/to/shard" + i;
            writeFile(shardPath, encodedShards.get(i));
        }
    }
    private static byte[] readFile(String filePath) throws IOException {
        File file = new File(filePath);
        byte[] data = new byte[(int) file.length()];
        try (FileInputStream fis = new FileInputStream(file)) {
            fis.read(data);
        }
        return data;
    }
    private static List<byte[]> shardFile(byte[] fileData) {
        List<byte[]> shards = new ArrayList<>();
        int totalShards = (fileData.length + SHARD_SIZE - 1) / SHARD_SIZE;
        for (int i = 0; i < totalShards; i++) {
            int start = i * SHARD_SIZE;
            int end = Math.min(start + SHARD_SIZE, fileData.length);
            byte[] shard = Arrays.copyOfRange(fileData, start, end);
            shards.add(shard);
        }
        return shards;
    }
    private static List<byte[]> encodeShards(List<byte[]> shards) {
        List<byte[]> encodedShards = new ArrayList<>(shards);
        for (int i = 0; i < PARITY_SHARDS; i++) {
            byte[] parityShard = new byte[SHARD_SIZE];
            for (byte[] shard : shards) {
                for (int j = 0; j < shard.length; j++) {
                    parityShard[j] ^= shard[j];
                }
            }
            encodedShards.add(parityShard);
        }
        return encodedShards;
    }
    private static void writeFile(String path, byte[] data) throws IOException {
        try (FileOutputStream fos = new FileOutputStream(path)) {
            fos.write(data);
        }
    }
}

import java.util.SortedMap;
import java.util.TreeMap;
public class ConsistentHashing {
    private final SortedMap<Integer, String> circle = new TreeMap<>();
    public void addNode(String node) {
        int hash = node.hashCode();
        circle.put(hash, node);
    }
    public void removeNode(String node) {
        int hash = node.hashCode();
        circle.remove(hash);
    }
    public String getNode(String key) {
        if (circle.isEmpty()) {
            return null;
        }
        int hash = key.hashCode();
        if (!circle.containsKey(hash)) {
            SortedMap<Integer, String> tailMap = circle.tailMap(hash);
            hash = tailMap.isEmpty() ? circle.firstKey() : tailMap.firstKey();
        }
        return circle.get(hash);
    }
    public static void main(String[] args) {
        ConsistentHashing ch = new ConsistentHashing();
        ch.addNode("192.168.0.200:9000");
        ch.addNode("192.168.0.201:9000");
        ch.addNode("192.168.0.202:9000");
        ch.addNode("192.168.0.203:9000");
        String node = ch.getNode("my-object");
        System.out.println("Node for my-object: " + node);
    }
}

public class LoadBalancer {
    private final ConsistentHashing consistentHashing = new ConsistentHashing();
    public LoadBalancer() {
        consistentHashing.addNode("192.168.0.200:9000");
        consistentHashing.addNode("192.168.0.201:9000");
        consistentHashing.addNode("192.168.0.202:9000");
        consistentHashing.addNode("192.168.0.203:9000");
    }
    public String getServer(String key) {
        return consistentHashing.getNode(key);
    }
    public static void main(String[] args) {
        LoadBalancer lb = new LoadBalancer();
        String server = lb.getServer("request1");
        System.out.println("Server for request1: " + server);
    }
}