did 체크 함수 추가

METADIUM · Jan 28, 2021 · d756a87 · d756a87
1 parent a20c161
commit d756a87
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Showing 2 changed files with 28 additions and 1 deletion.
diff --git a/src/main/java/com/metadium/did/MetadiumWallet.java b/src/main/java/com/metadium/did/MetadiumWallet.java
@@ -115,6 +115,29 @@ public static MetadiumWallet createDid(MetaDelegator metaDelegator, MetadiumKey
 		}
 	}
 
+	/**
+	 * DID 가 블럭체인상에 존재하는지 확인
+	 * @param metaDelegator		{@link MetaDelegator}
+	 * @return 존재하는 경우 true
+	 * @throws DidException
+	 * @throws Exception
+	 */
+	public boolean existsDid(MetaDelegator metaDelegator) throws DidException, Exception {
+        IdentityRegistry identityRegistry = IdentityRegistry.load(
+                metaDelegator.getAllServiceAddress().identityRegistry,
+                metaDelegator.getWeb3j(),
+                new NotSignTransactionManager(metaDelegator.getWeb3j()),
+                new ZeroContractGasProvider()
+        );
+
+        try {
+	        return identityRegistry.hasIdentity(key.getAddress()).send();
+        }
+        catch (Exception e) {
+        	throw new IOException(e);
+        }
+	}
+
 	/**
 	 * 서비스 키 추가
 	 * 

diff --git a/src/test/java/com/metadium/did/DidTest.java b/src/test/java/com/metadium/did/DidTest.java
@@ -27,7 +27,7 @@
 public class DidTest {
 
 	@Test
-	public void testCRUD() throws DidException, InvalidAlgorithmParameterException, ParseException {
+	public void testCRUD() throws DidException, InvalidAlgorithmParameterException, ParseException, Exception {
 		MetaDelegator delegator = new MetaDelegator("https://testdelegator.metadium.com", "https://testdelegator.metadium.com", "did:meta:testnet");
 
 		// Create did
@@ -50,9 +50,13 @@ public void testCRUD() throws DidException, InvalidAlgorithmParameterException,
 		assertNotNull(didDocument);
 		assertNotNull(didDocument.getPublicKey(wallet.getKid()));
 
+		assertTrue(wallet.existsDid(delegator));
+
 		// Delete did
 		wallet.deleteDid(delegator);
 
+		assertTrue(!wallet.existsDid(delegator));
+
 		// Check did document
 		didDocument = DIDResolverAPI.getInstance().getDocument(wallet.getDid());
 		assertNull(didDocument);