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feature/clusterid #31

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Jul 5, 2024
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Original file line number Diff line number Diff line change
Expand Up @@ -3,14 +3,12 @@
import com.fasterxml.jackson.databind.ObjectMapper;
import kr.hakdang.cadio.common.Jsons;
import kr.hakdang.cadio.core.domain.bootstrap.BootstrapProvider;
import kr.hakdang.cadio.core.domain.cluster.ClusterConnection;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import java.io.File;
import java.util.Collections;
import java.util.List;
import java.util.UUID;

/**
* ClusterManager
Expand Down Expand Up @@ -51,7 +49,7 @@ public void register(ClusterInfoRegisterArgs args) {
}

List<ClusterInfo> result = om.readValue(clusterJsonFile, TYPED);
result.add(args.makeClusterInfo(UUID.randomUUID().toString()));
result.add(args.makeClusterInfo(ClusterUtils.generateClusterId()));

om.writeValue(clusterJsonFile, result);

Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
package kr.hakdang.cadio.core.domain.cluster.info;

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.UUID;

/**
* ClusterUtils
*
* @author akageun
* @since 2024-07-05
*/
public abstract class ClusterUtils {

public static String generateClusterId() {
String uuid = UUID.randomUUID().toString();
byte[] temp = uuid.getBytes(StandardCharsets.UTF_8);
byte[] test;
try {
MessageDigest digest = MessageDigest.getInstance("SHA-256");
test = digest.digest(temp);
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}

StringBuilder sb = new StringBuilder();
for (int j = 0; j < 4; j++) {
sb.append(String.format("%02x", test[j]));
}

return sb.toString();
}
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
package kr.hakdang.cadio.core.domain.cluster.info;

import kr.hakdang.cadio.BaseTest;
import lombok.extern.slf4j.Slf4j;
import org.junit.jupiter.api.Test;

@Slf4j
class ClusterUtilsTest extends BaseTest {

@Test
void generateClusterIdTest() {
for (int i = 0; i < 10; i++) {
log.info("id : {}", ClusterUtils.generateClusterId());
}
}
}
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