16 12 25

Промежуточная версия и ТУДУ на чём остановился
2025-12-16 17:56:36 +03:00
parent 19c4fd6cd1
commit ab44cc5282
30 changed files with 2511 additions and 3 deletions
@@ -0,0 +1,62 @@
+package utils.blockchain;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.Base64;
+
+/**
+ * BchInfoEntry — данные об одной цепочке блокчейна.
+ * Используется менеджером BchInfoManager.
+ */
+public final class BchInfoEntry {
+
+    @JsonProperty("blockchainId")
+    public final long blockchainId;
+
+    @JsonProperty("userLogin")
+    public final String userLogin;
+
+    @JsonProperty("publicKeyBase64")
+    public final String publicKeyBase64;
+
+    @JsonProperty("blockchainSizeLimit")
+    public final int blockchainSizeLimit;
+
+    @JsonProperty("blockchainSize")
+    public final int blockchainSize;
+
+    @JsonProperty("lastBlockNumber")
+    public final int lastBlockNumber;
+
+    @JsonProperty("lastBlockHash")
+    public final String lastBlockHash;
+
+    @JsonCreator
+    public BchInfoEntry(
+            @JsonProperty("blockchainId") long blockchainId,
+            @JsonProperty("userLogin") String userLogin,
+            @JsonProperty("publicKeyBase64") String publicKeyBase64,
+            @JsonProperty("blockchainSizeLimit") int blockchainSizeLimit,
+            @JsonProperty("blockchainSize") int blockchainSize,
+            @JsonProperty("lastBlockNumber") int lastBlockNumber,
+            @JsonProperty("lastBlockHash") String lastBlockHash
+    ) {
+        this.blockchainId = blockchainId;
+        this.userLogin = userLogin == null ? "" : userLogin;
+        this.publicKeyBase64 = publicKeyBase64;
+        this.blockchainSizeLimit = blockchainSizeLimit;
+        this.blockchainSize = blockchainSize;
+        this.lastBlockNumber = lastBlockNumber;
+        this.lastBlockHash = lastBlockHash == null ? "" : lastBlockHash;
+    }
+
+    /** Публичный ключ в бинарном виде (32 байта) или null, если битый. */
+    public byte[] getPublicKey32() {
+        try {
+            byte[] raw = Base64.getDecoder().decode(publicKeyBase64);
+            return (raw != null && raw.length == 32) ? raw : null;
+        } catch (IllegalArgumentException e) {
+            return null;
+        }
+    }
+}