Added new methods to BlockChainDataListener

gradle.properties

@@ -1,3 +1,3 @@
 group = com.bloxbean.cardano
 artifactId = yaci
-version = 0.2.2-SNAPSHOT
+version = 0.2.2

helper/src/integrationTest/java/com/bloxbean/cardano/yaci/helper/BlockSyncIT.java

@@ -5,13 +5,15 @@
 import com.bloxbean.cardano.yaci.core.model.BlockHeader;
 import com.bloxbean.cardano.yaci.core.model.Era;
 import com.bloxbean.cardano.yaci.core.protocol.chainsync.messages.Point;
+import com.bloxbean.cardano.yaci.core.protocol.chainsync.messages.Tip;
 import com.bloxbean.cardano.yaci.helper.listener.BlockChainDataListener;
 import com.bloxbean.cardano.yaci.helper.model.Transaction;
 import org.junit.jupiter.api.Test;
 
 import java.util.List;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicLong;
 
@@ -60,7 +62,7 @@ public void onBlock(Block block) {
                 countDownLatch.countDown();
             }
 
-            @Override
+                    @Override
             public void onTransactions(Era era, BlockHeader blockHeader, List<Transaction> transactions) {
                 System.out.println("# of transactions >> " + transactions.size());
                 noOfTxs.set(transactions.size());
@@ -72,4 +74,44 @@ public void onTransactions(Era era, BlockHeader blockHeader, List<Transaction> t
         assertThat(blockNo.get()).isEqualTo(292458);
         assertThat(noOfTxs.get()).isGreaterThanOrEqualTo(1);
     }
+
+    @Test
+    void intersactNotFound() throws InterruptedException {
+        BlockSync blockSync = new BlockSync(node, nodePort, protocolMagic, Constants.WELL_KNOWN_PREPROD_POINT);
+
+        AtomicBoolean success = new AtomicBoolean(false);
+        CountDownLatch countDownLatch = new CountDownLatch(1);
+        blockSync.startSync(new Point(38474115, "784e0c913ce6378208f4fc1abf2ce74e817048306247e0ecffa6dac676ce8c65"),
+                new BlockChainDataListener() {
+                    @Override
+                    public void intersactNotFound(Tip tip) {
+                        System.out.println(">>> Intersection not found");
+                        success.set(true);
+                        countDownLatch.countDown();
+                    }
+                });
+
+        countDownLatch.await(60, TimeUnit.SECONDS);
+        assertThat(success.get()).isTrue();
+    }
+
+    @Test
+    void intersactFound() throws InterruptedException {
+        BlockSync blockSync = new BlockSync(node, nodePort, protocolMagic, Constants.WELL_KNOWN_PREPROD_POINT);
+
+        AtomicBoolean success = new AtomicBoolean(false);
+        CountDownLatch countDownLatch = new CountDownLatch(1);
+        blockSync.startSync(new Point(38481569, "cf884b8e61126190f6e59d71ad53c561f620cf65ed09aff468149b32b537a804"),
+                new BlockChainDataListener() {
+                    @Override
+                    public void intersactFound(Tip tip, Point point) {
+                        System.out.println("Intersection found");
+                        success.set(true);
+                        countDownLatch.countDown();
+                    }
+                });
+
+        countDownLatch.await(60, TimeUnit.SECONDS);
+        assertThat(success.get()).isTrue();
+    }
 }

helper/src/main/java/com/bloxbean/cardano/yaci/helper/listener/BlockChainDataListener.java

@@ -6,6 +6,7 @@
 import com.bloxbean.cardano.yaci.core.model.byron.ByronEbBlock;
 import com.bloxbean.cardano.yaci.core.model.byron.ByronMainBlock;
 import com.bloxbean.cardano.yaci.core.protocol.chainsync.messages.Point;
+import com.bloxbean.cardano.yaci.core.protocol.chainsync.messages.Tip;
 import com.bloxbean.cardano.yaci.helper.model.Transaction;
 
 import java.util.List;
@@ -20,4 +21,17 @@ default void onTransactions(Era era, BlockHeader blockHeader, List<Transaction>
 
     default void batchDone() {}
     default void noBlockFound(Point from, Point to) {}
+
+    /**
+     * Called when an intersection is found. This is available only for {@link com.bloxbean.cardano.yaci.helper.BlockSync} (Block sync protocol)
+     * @param tip
+     * @param point
+     */
+    default void intersactFound(Tip tip, Point point) {}
+
+    /**
+     * Called when an intersection is not found. This is available only for {@link com.bloxbean.cardano.yaci.helper.BlockSync} (Block sync protocol)
+     * @param tip
+     */
+    default void intersactNotFound(Tip tip) {}
 }

helper/src/main/java/com/bloxbean/cardano/yaci/helper/listener/ChainSyncListenerAdapter.java

@@ -15,11 +15,11 @@ public ChainSyncListenerAdapter(BlockChainDataListener blockChainDataListener) {
     }
 
     public void intersactFound(Tip tip, Point point) {
-
+        blockChainDataListener.intersactFound(tip, point);
     }
 
     public void intersactNotFound(Tip tip) {
-
+        blockChainDataListener.intersactNotFound(tip);
     }
 
     public void rollforward(Tip tip, BlockHeader blockHeader) {