Process data-updated event asynchronouslymr/526/123402/5

- notification is processed asynchronously using defined threadpool
- updated docker-compose and readme to add dataspace filtering variables

Issue-ID: CPS-526
Signed-off-by: Renu Kumari <renu.kumari@bell.ca>
Change-Id: I7f827250f45cb9e3db2f060e9b3a089a4eaee05c

1 files changed, 64 insertions, 0 deletions

diff --git a/cps-service/src/main/java/org/onap/cps/config/AsyncConfig.java b/cps-service/src/main/java/org/onap/cps/config/AsyncConfig.java
new file mode 100644
index 000000000..52c3bbdbb
--- /dev/null
+++ b/cps-service/src/main/java/org/onap/cps/config/AsyncConfig.java
@@ -0,0 +1,64 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Pantheon.tech
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.config;
+
+import javax.validation.constraints.Min;
+import lombok.Setter;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.task.TaskExecutor;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+import org.springframework.validation.annotation.Validated;
+
+@EnableAsync
+@Configuration
+@ConfigurationProperties("notification.async-executor")
+@Validated
+@Setter
+public class AsyncConfig {
+
+    @Min(0)
+    private int corePoolSize = 2;
+    @Min(2)
+    private int maxPoolSize = 10;
+    @Min(0)
+    private int queueCapacity = 2147483647;
+    private boolean waitForTasksToCompleteOnShutdown = true;
+    private String threadNamePrefix = "Async-";
+
+    /**
+     * Creates TaskExecutor for processing data-updated events.
+     *
+     * @return TaskExecutor
+     */
+    @Bean("notificationExecutor")
+    public TaskExecutor getThreadAsyncExecutorForNotification() {
+        final ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+        executor.setCorePoolSize(corePoolSize);
+        executor.setMaxPoolSize(maxPoolSize);
+        executor.setQueueCapacity(queueCapacity);
+        executor.setWaitForTasksToCompleteOnShutdown(waitForTasksToCompleteOnShutdown);
+        executor.setThreadNamePrefix(threadNamePrefix);
+        return executor;
+    }
+
+}