Add HazelcastLockRegistry implementation

spring-integration-hazelcast/src/main/java/org/springframework/integration/hazelcast/lock/HazelcastLockRegistry.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2017 the original author or authors.
+ *
+ * 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 org.springframework.integration.hazelcast.lock;
+
+import java.util.concurrent.locks.Lock;
+
+import org.springframework.integration.support.locks.LockRegistry;
+import org.springframework.util.Assert;
+
+import com.hazelcast.core.HazelcastInstance;
+
+/**
+ * A {@link LockRegistry} implementation Hazelcast distributed locks.
+ *
+ * @author Artem Bilan
+ */
+public class HazelcastLockRegistry implements LockRegistry {
+
+	private final HazelcastInstance client;
+
+	public HazelcastLockRegistry(HazelcastInstance hazelcastInstance) {
+		Assert.notNull(hazelcastInstance, "'hazelcastInstance' must not be null");
+		this.client = hazelcastInstance;
+	}
+
+	@Override
+	public Lock obtain(Object lockKey) {
+		Assert.isInstanceOf(String.class, lockKey);
+		return this.client.getLock((String) lockKey);
+	}
+
+}

spring-integration-hazelcast/src/main/java/org/springframework/integration/hazelcast/lock/package-info.java

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+/**
+ * Provides the distributed Locks support classes.
+ */
+package org.springframework.integration.hazelcast.lock;