1 files changed, 63 insertions, 0 deletions
diff --git a/ambari-server/src/main/java/org/apache/ambari/server/controller/sql/HostInfoProvider.java b/ambari-server/src/main/java/org/apache/ambari/server/controller/sql/HostInfoProvider.java
new file mode 100644
index 0000000000..08bbe71871
--- /dev/null
+++ b/ambari-server/src/main/java/org/apache/ambari/server/controller/sql/HostInfoProvider.java
@@ -0,0 +1,63 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.ambari.server.controller.sql;
+
+import org.apache.ambari.server.controller.spi.SystemException;
+
+/**
+ * Provider of host information.
+ */
+public interface HostInfoProvider {
+
+  /**
+   * Get the host name for the given cluster name and component name.
+   *
+   * @param clusterName    the cluster name
+   * @param componentName  the component name
+   *
+   * @return the host name
+   *
+   * @throws SystemException if unable to get the host name
+   */
+  public String getHostName(String clusterName, String componentName)
+      throws SystemException;
+
+  /**
+   * Get the host name.
+   *
+   * @param id  the host identifier
+   *
+   * @return the host name
+   *
+   * @throws SystemException if unable to get the host name
+   */
+  public String getHostName(String id)
+      throws SystemException;
+
+  /**
+   * Get the host ip address.
+   *
+   * @param id  the host identifier
+   *
+   * @return the host ip address
+   *
+   * @throws SystemException if unable to get the host address
+   */
+  public String getHostAddress(String id)
+      throws SystemException;
+}