Move XML based Spring configuration to Java

- The original externalised Spring XML-based configuration deployed to:
    /opt/app/spike-service/dynamic/conf/spike-beans.xml
  has been replaced with Spring Java based configuration.
- Event consumer and publisher configuration is now in property files.
  This now allows obfuscation of passwords.
- Bean creation now allows pre-processing the topic properties.
  For example, the password can now be de-obfuscated before it is
  passed into the bean constructor.

Change-Id: I5c265dca266b0dcbb562ca1b391080fe237b1e64
Issue-ID: AAI-1377
Signed-off-by: Michael Arrastia <MArrasti@amdocs.com>

4 files changed, 116 insertions, 8 deletions

diff --git a/src/main/java/org/onap/aai/spike/EventConsumerConfiguration.java b/src/main/java/org/onap/aai/spike/EventConsumerConfiguration.java
new file mode 100644
index 0000000..e45288a
--- /dev/null
+++ b/src/main/java/org/onap/aai/spike/EventConsumerConfiguration.java
@@ -0,0 +1,53 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2018 Amdocs
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.aai.spike;
+
+import java.net.MalformedURLException;
+import org.onap.aai.event.client.DMaaPEventConsumer;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+
+@Configuration
+@PropertySource("file:${CONFIG_HOME}/event-consumer.properties")
+public class EventConsumerConfiguration {
+
+    //@formatter:off
+    @Bean
+    DMaaPEventConsumer dmaapEventConsumer( //NOSONAR
+        @Value("${event.consumer.host}") String host,
+        @Value("${event.consumer.topic}") String topic,
+        @Value("${event.consumer.username}") String username,
+        @Value("${event.consumer.password}") String password,
+        @Value("${event.consumer.consumerGroup}") String consumerGroup,
+        @Value("${event.consumer.consumerId}") String consumerId,
+        @Value("${event.consumer.timeoutMs}") int timeoutMs,
+        @Value("${event.consumer.messageLimit}") int messageLimit,
+        @Value("${event.consumer.transportType}") String transportType,
+        @Value("${event.consumer.protocol}") String protocol) throws MalformedURLException
+    {
+    //@formatter:on
+        return new DMaaPEventConsumer(host, topic, username, password, consumerGroup, consumerId, timeoutMs,
+                messageLimit, transportType, protocol, null);
+    }
+
+}
diff --git a/src/main/java/org/onap/aai/spike/EventPublisherConfiguration.java b/src/main/java/org/onap/aai/spike/EventPublisherConfiguration.java
new file mode 100644
index 0000000..6e7d26d
--- /dev/null
+++ b/src/main/java/org/onap/aai/spike/EventPublisherConfiguration.java
@@ -0,0 +1,50 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2018 Amdocs
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.aai.spike;
+
+import org.onap.aai.event.client.DMaaPEventPublisher;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+
+@Configuration
+@PropertySource("file:${CONFIG_HOME}/event-publisher.properties")
+public class EventPublisherConfiguration {
+
+    //@formatter:off
+    @Bean
+    DMaaPEventPublisher dmaapEventPublisher( //NOSONAR
+        @Value("${event.publisher.host}") String host,
+        @Value("${event.publisher.topic}") String topic,
+        @Value("${event.publisher.username}") String username,
+        @Value("${event.publisher.password}") String password,
+        @Value("${event.publisher.maxBatchSize}") int maxBatchSize,
+        @Value("${event.publisher.maxAgeMs}") long maxAgeMs,
+        @Value("${event.publisher.delayBetweenBatchesMs}") int delayBetweenBatchesMs,
+        @Value("${event.publisher.transportType}") String transportType)
+    {
+    //@formatter:on
+        return new DMaaPEventPublisher(host, topic, username, password, maxBatchSize, maxAgeMs, delayBetweenBatchesMs,
+                transportType);
+    }
+
+}
diff --git a/src/main/java/org/onap/aai/spike/SpikeApplication.java b/src/main/java/org/onap/aai/spike/SpikeApplication.java
index e031de3..33760de 100644
--- a/src/main/java/org/onap/aai/spike/SpikeApplication.java
+++ b/src/main/java/org/onap/aai/spike/SpikeApplication.java
@@ -1,9 +1,9 @@
 /**
- * ============LICENSE_START=======================================================
+ * ============LICENSE_START=======================================================
  * org.onap.aai
  * ================================================================================
  * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
- * Copyright © 2017-2018 European Software Marketing Ltd.
+ * Copyright © 2017-2018 Amdocs
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,13 +25,13 @@ import org.eclipse.jetty.util.security.Password;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
-import org.springframework.context.annotation.ImportResource;
+import org.springframework.context.annotation.Import;
 
 /**
  * Spike service Spring Boot Application
  */
 @SpringBootApplication
-@ImportResource({"file:${SERVICE_BEANS}/*.xml"})
+@Import({ EventConsumerConfiguration.class, EventPublisherConfiguration.class })
 public class SpikeApplication extends SpringBootServletInitializer {
 
     public static void main(String[] args) {
diff --git a/src/main/java/org/onap/aai/spike/service/SpikeService.java b/src/main/java/org/onap/aai/spike/service/SpikeService.java
index 3aa6dfe..8689903 100644
--- a/src/main/java/org/onap/aai/spike/service/SpikeService.java
+++ b/src/main/java/org/onap/aai/spike/service/SpikeService.java
@@ -21,6 +21,7 @@
 package org.onap.aai.spike.service;
 
 import java.util.Timer;
+import javax.annotation.PostConstruct;
 import javax.annotation.PreDestroy;
 import org.onap.aai.cl.api.Logger;
 import org.onap.aai.cl.eelf.LoggerFactory;
@@ -31,7 +32,11 @@ import org.onap.aai.spike.schema.EdgeRulesLoader;
 import org.onap.aai.spike.schema.OXMModelLoader;
 import org.onap.aai.spike.util.SpikeConstants;
 import org.onap.aai.spike.util.SpikeProperties;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Component;
 
+@Component
 public class SpikeService {
 
     private EventConsumer consumer;
@@ -39,12 +44,14 @@ public class SpikeService {
     private static Logger logger = LoggerFactory.getInstance().getLogger(SpikeService.class.getName());
     private Timer timer;
 
-    public SpikeService(EventConsumer consumer, EventPublisher publisher) {
+    @Autowired
+    public SpikeService(@Qualifier("dmaapEventConsumer") EventConsumer consumer,
+            @Qualifier("dmaapEventPublisher") EventPublisher publisher) {
         this.consumer = consumer;
         this.publisher = publisher;
     }
 
-
+    @PostConstruct
     public void startup() throws Exception {
 
         // Load models
@@ -68,8 +75,6 @@ public class SpikeService {
     protected void preShutdown() {
         logger.info(SpikeMsgs.SPIKE_SERVICE_STARTED_SUCCESSFULLY, consumer.getClass().getName());
         timer.cancel();
-
-
     }
 
 }