Add Aai event listener

Add support for Aai and Pserver incoming messages from Dmaap

Change-Id: I57fedcaf6668d09189f0246571e8aaf515fc3fa0
Issue-ID: CCSDK-223
Signed-off-by: Serban Popescu <sp5226@att.com>

7 files changed, 347 insertions, 0 deletions

diff --git a/dmaap-listener/pom.xml b/dmaap-listener/pom.xml
index f6d04e24..3a75fef0 100755
--- a/dmaap-listener/pom.xml
+++ b/dmaap-listener/pom.xml
@@ -20,6 +20,7 @@
     <properties>
         <sdc.client.version>1.2.0-SNAPSHOT</sdc.client.version>
         <fasterxml.jackson.version>2.9.0.pr1</fasterxml.jackson.version>
+        <velocity.version>1.7</velocity.version>
         <skip.SWM>true</skip.SWM>
         <dmaap.listener.base>/opt/app/dmaap-listener</dmaap.listener.base>
         <dmaap.listener.version>1.1.0-SNAPSHOT</dmaap.listener.version>
@@ -68,6 +69,11 @@
             <version>${fasterxml.jackson.version}</version>
         </dependency>
         <dependency>
+            <groupId>org.apache.velocity</groupId>
+            <artifactId>velocity</artifactId>
+            <version>${velocity.version}</version>
+        </dependency>        
+        <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <version>${junit.version}</version>
diff --git a/dmaap-listener/src/assembly/assemble_zip.xml b/dmaap-listener/src/assembly/assemble_zip.xml
index f8873ab4..632172d7 100644
--- a/dmaap-listener/src/assembly/assemble_zip.xml
+++ b/dmaap-listener/src/assembly/assemble_zip.xml
@@ -48,6 +48,7 @@
 			<includes>
 				<include>*.properties</include>
 				<include>*.map</include>
+				<include>*.vt</include>
 			</includes>
 		</fileSet>
 	</fileSets>
diff --git a/dmaap-listener/src/main/java/org/onap/ccsdk/sli/northbound/dmaapclient/SdncAaiDmaapConsumer.java b/dmaap-listener/src/main/java/org/onap/ccsdk/sli/northbound/dmaapclient/SdncAaiDmaapConsumer.java
new file mode 100644
index 00000000..4b695fce
--- /dev/null
+++ b/dmaap-listener/src/main/java/org/onap/ccsdk/sli/northbound/dmaapclient/SdncAaiDmaapConsumer.java
@@ -0,0 +1,205 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : SDN-C
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ * 			reserved.
+ * ================================================================================
+ * 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.ccsdk.sli.northbound.dmaapclient;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.StringWriter;
+import java.io.Writer;
+import java.time.Instant;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+
+import org.apache.velocity.VelocityContext;
+import org.apache.velocity.app.VelocityEngine;
+import org.json.JSONObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SdncAaiDmaapConsumer extends SdncDmaapConsumer {
+
+    private static final Logger LOG = LoggerFactory.getLogger(SdncAaiDmaapConsumer.class);
+    private static final String SDNC_ENDPOINT = "SDNC.endpoint";
+    private static final String TEMPLATE = "SDNC.template";
+    private static final String DMAAPLISTENERROOT = "DMAAPLISTENERROOT";
+
+    private static final String AAI_EVENT = "AAI-EVENT";
+    
+    private static final String EVENT_TYPE = "event-type";
+    private static final String ENTITY_TYPE = "entity-type";
+    private static final String EVENT_HEADER = "event-header";
+    
+    private String rootDir;
+
+    protected VelocityEngine velocityEngine;
+    
+    public SdncAaiDmaapConsumer() {
+        velocityEngine = new VelocityEngine();
+		Properties props = new Properties();
+        rootDir = System.getenv(DMAAPLISTENERROOT);
+
+        if ((rootDir == null) || (rootDir.length() == 0)) {
+        	rootDir = "/opt/app/dmaap-listener/lib/";
+        }
+        else {
+        	rootDir = rootDir + "/lib/";
+        }
+ 
+        props.put("file.resource.loader.path", rootDir);        
+        velocityEngine.init(props);
+    }
+    
+    /*
+     * for testing purposes
+     */
+    SdncAaiDmaapConsumer(Properties props) {
+        velocityEngine = new VelocityEngine();      
+        velocityEngine.init(props);
+    }
+    
+    protected String publish(String templatePath, String jsonString) throws IOException
+    {                                                                                                                                            
+      JSONObject jsonObj = new JSONObject(jsonString);
+      VelocityContext context = new VelocityContext();
+      for(Object key : jsonObj.keySet())
+      {
+        context.put((String)key, jsonObj.get((String)key));
+      }
+
+      context.put("curr_time", Instant.now());
+      
+      ObjectMapper oMapper = new ObjectMapper();
+      
+      String rpcMsgbody = oMapper.writeValueAsString(jsonString);
+      context.put("full_message", rpcMsgbody);
+      
+      Writer writer = new StringWriter();
+      velocityEngine.mergeTemplate(templatePath, "UTF-8", context, writer);
+      writer.flush();
+
+      return writer.toString();
+    }
+    
+    @Override
+    public void processMsg(String msg) throws InvalidMessageException {
+
+        if (msg == null) {
+            throw new InvalidMessageException("Null message");
+        }
+
+        ObjectMapper oMapper = new ObjectMapper();
+        JsonNode aaiRootNode;
+        try {
+            aaiRootNode = oMapper.readTree(msg);
+        } catch (Exception e) {
+            throw new InvalidMessageException("Cannot parse json object", e);
+        }        
+       
+        JsonNode eventHeaderNode = aaiRootNode.get(EVENT_HEADER);
+        if(eventHeaderNode == null) {
+            LOG.info("Missing Event Header node.");
+            return;
+        }
+        JsonNode eventTypeNode = eventHeaderNode.get(EVENT_TYPE);
+        String eventType = eventTypeNode.textValue();
+        
+        if(AAI_EVENT.equals(eventType) == false) {
+            LOG.info("Unknown Event Type {}", eventType);
+            return;
+        }
+        
+        JsonNode entityTypeNode = eventHeaderNode.get(ENTITY_TYPE);
+        String entityType = entityTypeNode.textValue();
+        
+        String mapFilename = rootDir + entityType + ".map";
+        Map<String, String> fieldMap = loadMap(mapFilename);
+        if (fieldMap == null) {
+            throw new InvalidMessageException("Unable to process message - cannot load mapping file");
+        }
+
+        if (!fieldMap.containsKey(SDNC_ENDPOINT)) {
+            throw new InvalidMessageException("No SDNC endpoint known for message " + entityType);
+        }
+        String sdncEndpoint = fieldMap.get(SDNC_ENDPOINT);        
+   
+        if (!fieldMap.containsKey(TEMPLATE)) {
+            throw new InvalidMessageException("No SDNC template known for message " + entityType);
+        }
+        String templateName = fieldMap.get(TEMPLATE); 
+        
+        try {
+            String rpcMsgbody = publish(templateName, msg);
+            String odlUrlBase = getProperty("sdnc.odl.url-base");
+            String odlUser = getProperty("sdnc.odl.user");
+            String odlPassword = getProperty("sdnc.odl.password");
+
+            if ((odlUrlBase != null) && (odlUrlBase.length() > 0)) {
+                SdncOdlConnection conn = SdncOdlConnection.newInstance(odlUrlBase + sdncEndpoint, odlUser, odlPassword);
+
+                conn.send("POST", "application/json", rpcMsgbody);
+            } else {
+                LOG.info("POST message body would be:\n" + rpcMsgbody);
+            }
+        } catch (Exception e) {
+            LOG.error("Unable to process message", e);
+        }
+    }
+
+	private Map<String, String> loadMap(String mapFilename) {
+		File mapFile = new File(mapFilename);
+
+        if (!mapFile.canRead()) {
+            LOG.error(String.format("Cannot read map file (%s)", mapFilename));
+            return null;
+        }
+        
+        Map<String, String> results = new HashMap<>();
+        try (BufferedReader mapReader = new BufferedReader(new FileReader(mapFile))) {
+
+            String curLine;
+
+            while ((curLine = mapReader.readLine()) != null) {
+                curLine = curLine.trim();
+
+                if ((curLine.length() > 0) && (!curLine.startsWith("#")) && curLine.contains("=>")) {
+                    String[] entry = curLine.split("=>");
+                    if (entry.length == 2) {
+                        results.put(entry[0].trim(), entry[1].trim());
+                    }
+                }
+            }
+            mapReader.close();
+        } catch (Exception e) {
+            LOG.error("Caught exception reading map " + mapFilename, e);
+            return null;
+        }
+        
+        return results;
+	}
+
+}
diff --git a/dmaap-listener/src/main/resources/pserver.map b/dmaap-listener/src/main/resources/pserver.map
new file mode 100644
index 00000000..8b3e463e
--- /dev/null
+++ b/dmaap-listener/src/main/resources/pserver.map
@@ -0,0 +1,5 @@
+# SDN-C URL
+SDNC.endpoint => config-selfservice-api:notification-callback
+
+# Field mapping 
+SDNC.template => template-pserver.vt
diff --git a/dmaap-listener/src/main/resources/template-pserver.vt b/dmaap-listener/src/main/resources/template-pserver.vt
new file mode 100644
index 00000000..1df659e0
--- /dev/null
+++ b/dmaap-listener/src/main/resources/template-pserver.vt
@@ -0,0 +1,11 @@
+{
+	"input": {
+		"common-header": {
+			"request-id": "$event-header.id",
+			"timestamp": "$curr_time",
+			"originator-id": "AAI",
+			"api-ver": "2.00"
+		},
+		"payload": $full_message
+	}
+}
\ No newline at end of file
diff --git a/dmaap-listener/src/test/java/org/onap/ccsdk/sli/northbound/dmaapclient/TestSdncPserverDmaapReceiver.java b/dmaap-listener/src/test/java/org/onap/ccsdk/sli/northbound/dmaapclient/TestSdncPserverDmaapReceiver.java
new file mode 100644
index 00000000..db7cbd72
--- /dev/null
+++ b/dmaap-listener/src/test/java/org/onap/ccsdk/sli/northbound/dmaapclient/TestSdncPserverDmaapReceiver.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2017. Lorem ipsum dolor sit amet, consectetur adipiscing elit.
+ * Morbi non lorem porttitor neque feugiat blandit. Ut vitae ipsum eget quam lacinia accumsan.
+ * Etiam sed turpis ac ipsum condimentum fringilla. Maecenas magna.
+ * Proin dapibus sapien vel ante. Aliquam erat volutpat. Pellentesque sagittis ligula eget metus.
+ * Vestibulum commodo. Ut rhoncus gravida arcu.
+ */
+
+package org.onap.ccsdk.sli.northbound.dmaapclient;
+
+import static org.junit.Assert.assertTrue;
+
+import java.util.Properties;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestSdncPserverDmaapReceiver {
+    private static final String aaiInput = "{\r\n" + 
+            "    \"cambria.partition\": \"AAI\",\r\n" + 
+            "    \"event-header\": {\r\n" + 
+            "        \"severity\": \"NORMAL\",\r\n" + 
+            "        \"entity-type\": \"pserver\",\r\n" + 
+            "        \"top-entity-type\": \"pserver\",\r\n" + 
+            "        \"entity-link\": \"https://aai.com:8443/aai/v11/cloud-infrastructure/pservers/pserver/a3d3d3d3/\",\r\n" + 
+            "        \"event-type\": \"AAI-EVENT\",\r\n" + 
+            "        \"domain\": \"e2e\",\r\n" + 
+            "        \"action\": \"UPDATE\",\r\n" + 
+            "        \"sequence-number\": \"0\",\r\n" + 
+            "        \"id\": \"20170415000111-1234\",\r\n" + 
+            "        \"source-name\": \"testclient\",\r\n" + 
+            "        \"version\": \"v11\",\r\n" + 
+            "        \"timestamp\": \"20170415-00:01:11:979\"\r\n" + 
+            "    },\r\n" + 
+            "    \"entity\": {\r\n" + 
+            "        \"hostname\": \"host1\",\r\n" + 
+            "        \"ptnii-equip-name\": \"lat111\",\r\n" + 
+            "        \"equip-type\": \"server\",\r\n" + 
+            "        \"equip-vendor\": \"HP\",\r\n" + 
+            "        \"equip-model\": \"model1\",\r\n" + 
+            "        \"fqdn\": \"l.global.net\",\r\n" + 
+            "        \"ipv4-oam-address\": \"12.12.12.12\",\r\n" + 
+            "        \"in-maint\": false,\r\n" + 
+            "        \"resource-version\": \"11111111111\",\r\n" + 
+            "        \"purpose\": \"Gamma\",\r\n" + 
+            "        \"relationship-list\": {\r\n" + 
+            "            \"relationship\": [\r\n" + 
+            "                {\r\n" + 
+            "                    \"related-to\": \"complex\",\r\n" + 
+            "                    \"relationship-data\": [\r\n" + 
+            "                        {\r\n" + 
+            "                            \"relationship-value\": \"L1L2L3\",\r\n" + 
+            "                            \"relationship-key\": \"complex.physical-location-id\"\r\n" + 
+            "                        }\r\n" + 
+            "                    ],\r\n" + 
+            "                    \"related-link\": \"https://aai.com:8443/aai/v11/cloud-infrastructure/complexes/complex/cmpl1\"\r\n" + 
+            "                }\r\n" + 
+            "            ]\r\n" + 
+            "        },\r\n" + 
+            "        \"p-interfaces\": {\r\n" + 
+            "            \"p-interface\": []\r\n" + 
+            "        },\r\n" + 
+            "        \"lag-interfaces\": {\r\n" + 
+            "            \"lag-interface\": []\r\n" + 
+            "        }\r\n" + 
+            "    }\r\n" + 
+            "}";
+    
+	@Before
+	public void setUp() throws Exception {
+	}
+
+	@Test
+	public void test() throws Exception {
+		Properties props = new Properties();
+ 
+	    String rpcMsgbody = new SdncAaiDmaapConsumer(props).publish("src/main/resources/template-pserver.vt", aaiInput);
+
+        assertTrue(rpcMsgbody.indexOf("input") != -1); 
+        assertTrue(rpcMsgbody.indexOf("payload") != -1); 
+        assertTrue(rpcMsgbody.indexOf("common-header") != -1);
+	}
+
+
+}
diff --git a/dmaap-listener/src/test/resources/dmaap-consumer-pserver.properties b/dmaap-listener/src/test/resources/dmaap-consumer-pserver.properties
new file mode 100644
index 00000000..e3c4fdac
--- /dev/null
+++ b/dmaap-listener/src/test/resources/dmaap-consumer-pserver.properties
@@ -0,0 +1,34 @@
+TransportType=DME2
+Latitude =47.778998
+Longitude =-122.182883
+Version =1.0
+ServiceName =dmaap-v1.dev.dmaap.dt.saat.acsi.att.com/events
+Environment =TEST
+Partner =
+SubContextPath =/
+Protocol =https
+MethodType =GET
+username =test
+password =test
+contenttype =application/json
+authKey=ABC123
+authDate=2016-05-10T13:13:50-0700
+host=localhost:3904
+topic=ccsdk-topic
+group=pserver
+id=1
+timeout=20000
+limit=10000
+filter={"class":"Equals","field":"event-header.entity-type","value":"pserver"}
+AFT_DME2_EXCHANGE_REQUEST_HANDLERS=com.att.nsa.test.PreferredRouteRequestHandler
+AFT_DME2_EXCHANGE_REPLY_HANDLERS=com.att.nsa.test.PreferredRouteReplyHandler
+AFT_DME2_REQ_TRACE_ON=true
+AFT_ENVIRONMENT=AFTUAT
+AFT_DME2_EP_CONN_TIMEOUT=55000
+AFT_DME2_ROUNDTRIP_TIMEOUT_MS=240000
+AFT_DME2_EP_READ_TIMEOUT_MS=50000
+sessionstickinessrequired=NO
+DME2preferredRouterFilePath=src/test/resources/dmaap-listener.preferredRoute.txt
+sdnc.odl.user=admin
+sdnc.odl.password=admin
+sdnc.odl.url-base=http://localhost:8181/restconf/operations
\ No newline at end of file