Add network info subcomponent needed for the state

hedera-mirror-web3/src/main/java/com/hedera/mirror/web3/state/components/NetworkInfoImpl.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2024 Hedera Hashgraph, LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hedera.mirror.web3.state.components;
+
+import com.hedera.hapi.node.base.AccountID;
+import com.hedera.mirror.web3.evm.properties.MirrorNodeEvmProperties;
+import com.hedera.node.app.info.SelfNodeInfoImpl;
+import com.hedera.pbj.runtime.io.buffer.Bytes;
+import com.swirlds.state.spi.info.NetworkInfo;
+import com.swirlds.state.spi.info.NodeInfo;
+import com.swirlds.state.spi.info.SelfNodeInfo;
+import jakarta.annotation.Nonnull;
+import jakarta.annotation.Nullable;
+import jakarta.inject.Named;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+
+@Named
+@RequiredArgsConstructor
+public class NetworkInfoImpl implements NetworkInfo {
+
+    private final MirrorNodeEvmProperties mirrorNodeEvmProperties;
+
+    @Nonnull
+    @Override
+    public Bytes ledgerId() {
+        throw new UnsupportedOperationException("Ledger ID is not supported.");
+    }
+
+    @Nonnull
+    @Override
+    public SelfNodeInfo selfNodeInfo() {
+        return mockSelfNodeInfo();
+    }
+
+    @Nonnull
+    @Override
+    public List<NodeInfo> addressBook() {
+        throw new UnsupportedOperationException("Address book is not supported.");
+    }
+
+    @Nullable
+    @Override
+    public NodeInfo nodeInfo(long nodeId) {
+        return null;
+    }
+
+    @Override
+    public boolean containsNode(final long nodeId) {
+        return nodeInfo(nodeId) != null;
+    }
+
+    /**
+     * Returns a {@link SelfNodeInfo} that is a complete mock other than the software version present in the given
+     * configuration.
+     *
+     * @return a mock self node info
+     */
+    private SelfNodeInfo mockSelfNodeInfo() {
+        return new SelfNodeInfoImpl(
+                0,
+                AccountID.DEFAULT,
+                0,
+                "",
+                0,
+                "",
+                0,
+                "",
+                "",
+                Bytes.EMPTY,
+                mirrorNodeEvmProperties.getSemanticEvmVersion(),
+                "");
+    }
+}

hedera-mirror-web3/src/test/java/com/hedera/mirror/web3/state/components/NetworkInfoImplTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2024 Hedera Hashgraph, LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.hedera.mirror.web3.state.components;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import com.hedera.hapi.node.base.AccountID;
+import com.hedera.mirror.web3.Web3IntegrationTest;
+import com.hedera.mirror.web3.evm.properties.MirrorNodeEvmProperties;
+import com.swirlds.state.spi.info.NodeInfo;
+import com.swirlds.state.spi.info.SelfNodeInfo;
+import jakarta.annotation.Resource;
+import org.junit.jupiter.api.Test;
+
+class NetworkInfoImplTest extends Web3IntegrationTest {
+
+    private static final int NODE_ID = 2;
+
+    @Resource
+    private MirrorNodeEvmProperties mirrorNodeEvmProperties;
+
+    @Resource
+    private NetworkInfoImpl networkInfoImpl;
+
+    @Test
+    void testLedgerId() {
+        final var exception = assertThrows(UnsupportedOperationException.class, () -> networkInfoImpl.ledgerId());
+        assertThat(exception.getMessage()).isEqualTo("Ledger ID is not supported.");
+    }
+
+    @Test
+    void testSelfNodeInfo() {
+        SelfNodeInfo selfNodeInfo = networkInfoImpl.selfNodeInfo();
+        assertThat(selfNodeInfo).isNotNull().satisfies(info -> {
+            assertThat(info.nodeId()).isZero();
+            assertThat(info.accountId()).isEqualTo(AccountID.DEFAULT);
+            assertThat(info.hapiVersion()).isEqualTo(mirrorNodeEvmProperties.getSemanticEvmVersion());
+        });
+    }
+
+    @Test
+    void testAddressBook() {
+        final var exception = assertThrows(UnsupportedOperationException.class, () -> networkInfoImpl.addressBook());
+        assertThat(exception.getMessage()).isEqualTo("Address book is not supported.");
+    }
+
+    @Test
+    void testNodeInfo() {
+        assertThat(networkInfoImpl.nodeInfo(NODE_ID)).isNull();
+    }
+
+    @Test
+    void testNodeInfoInvalid() {
+        NodeInfo nodeInfo = networkInfoImpl.nodeInfo(Integer.MAX_VALUE);
+        assertThat(nodeInfo).isNull();
+    }
+
+    @Test
+    void testContainsNode() {
+        assertThat(networkInfoImpl.containsNode(NODE_ID)).isFalse();
+    }
+
+    @Test
+    void testContainsNodeInvalid() {
+        assertThat(networkInfoImpl.containsNode(Integer.MAX_VALUE)).isFalse();
+    }
+}