Add Query Provider for SQL Server

* updated copyright year

* indentation issue fixed

* white space - build issue fixed

* Trailing whitespace - removed

* fixed pull request comments

* Rename `SqlChannelMessageStoreQueryProvider` to `SqlServerChannelMessageStoreQueryProvider`

Author: sundarabalajijk

spring-integration-jdbc/src/main/java/org/springframework/integration/jdbc/store/channel/SqlServerChannelMessageStoreQueryProvider.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2018 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.jdbc.store.channel;
+
+/**
+ * Channel message store query provider for Microsoft SQL Server / Azure SQL database.
+ * @author Sundara Balaji
+ * @since 5.1
+ */
+public class SqlServerChannelMessageStoreQueryProvider extends AbstractChannelMessageStoreQueryProvider {
+
+	@Override
+	public String getPollFromGroupExcludeIdsQuery() {
+		return "SELECT TOP 1 %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID, %PREFIX%CHANNEL_MESSAGE.MESSAGE_BYTES from %PREFIX%CHANNEL_MESSAGE " +
+				"where %PREFIX%CHANNEL_MESSAGE.GROUP_KEY = :group_key and %PREFIX%CHANNEL_MESSAGE.REGION = :region " +
+				"and %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID not in (:message_ids) order by CREATED_DATE, MESSAGE_SEQUENCE";
+	}
+
+	@Override
+	public String getPollFromGroupQuery() {
+		return "SELECT TOP 1 %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID, %PREFIX%CHANNEL_MESSAGE.MESSAGE_BYTES from %PREFIX%CHANNEL_MESSAGE " +
+				"where %PREFIX%CHANNEL_MESSAGE.GROUP_KEY = :group_key and %PREFIX%CHANNEL_MESSAGE.REGION = :region " +
+				"order by CREATED_DATE, MESSAGE_SEQUENCE";
+	}
+
+	@Override
+	public String getPriorityPollFromGroupExcludeIdsQuery() {
+		return "SELECT TOP 1 %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID, %PREFIX%CHANNEL_MESSAGE.MESSAGE_BYTES from %PREFIX%CHANNEL_MESSAGE " +
+				"where %PREFIX%CHANNEL_MESSAGE.GROUP_KEY = :group_key and %PREFIX%CHANNEL_MESSAGE.REGION = :region " +
+				"and %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID not in (:message_ids) " +
+				"order by MESSAGE_PRIORITY DESC, CREATED_DATE, MESSAGE_SEQUENCE";
+	}
+
+	@Override
+	public String getPriorityPollFromGroupQuery() {
+		return "SELECT TOP 1 %PREFIX%CHANNEL_MESSAGE.MESSAGE_ID, %PREFIX%CHANNEL_MESSAGE.MESSAGE_BYTES from %PREFIX%CHANNEL_MESSAGE " +
+				"where %PREFIX%CHANNEL_MESSAGE.GROUP_KEY = :group_key and %PREFIX%CHANNEL_MESSAGE.REGION = :region " +
+				"order by MESSAGE_PRIORITY DESC, CREATED_DATE, MESSAGE_SEQUENCE";
+	}
+
+	@Override
+	public String getCreateMessageQuery() {
+		return "INSERT into %PREFIX%CHANNEL_MESSAGE(MESSAGE_ID, GROUP_KEY, REGION, CREATED_DATE, MESSAGE_PRIORITY, MESSAGE_SEQUENCE, MESSAGE_BYTES)"
+				+ " values (?, ?, ?, ?, ?,(NEXT VALUE FOR %PREFIX%MESSAGE_SEQ), ?)";
+	}
+
+}