Check for existing VNF in VNFM

Issue-ID: SO-1622
Change-Id: I6aa6af3c6988032f436c5da79c0140370469439e
Signed-off-by: MichaelMorris <michael.morris@est.tech>

4 files changed, 81 insertions, 60 deletions

diff --git a/common/src/main/java/org/onap/so/client/aai/AAINamespaceConstants.java b/common/src/main/java/org/onap/so/client/aai/AAINamespaceConstants.java
index 9d2c3a8b1b..1225bb3fd5 100644
--- a/common/src/main/java/org/onap/so/client/aai/AAINamespaceConstants.java
+++ b/common/src/main/java/org/onap/so/client/aai/AAINamespaceConstants.java
@@ -7,9 +7,9 @@
  * 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.
@@ -22,10 +22,10 @@ package org.onap.so.client.aai;
 
 public class AAINamespaceConstants {
 
-	public static final String CLOUD_INFRASTRUCTURE = "/cloud-infrastructure";
-	public static final String NETWORK = "/network";
-	public static final String BUSINESS = "/business";
-	public static final String SERVICE_DESIGN_AND_CREATION = "/service-design-and-creation";
-
+    public static final String CLOUD_INFRASTRUCTURE = "/cloud-infrastructure";
+    public static final String NETWORK = "/network";
+    public static final String BUSINESS = "/business";
+    public static final String SERVICE_DESIGN_AND_CREATION = "/service-design-and-creation";
+    public static final String EXTERNAL_SYSTEM = "/external-system";
 
 }
diff --git a/common/src/main/java/org/onap/so/client/aai/AAIObjectType.java b/common/src/main/java/org/onap/so/client/aai/AAIObjectType.java
index 34d560210c..f6aa2fdb19 100644
--- a/common/src/main/java/org/onap/so/client/aai/AAIObjectType.java
+++ b/common/src/main/java/org/onap/so/client/aai/AAIObjectType.java
@@ -37,6 +37,9 @@ import org.onap.aai.domain.yang.Configuration;
 import org.onap.aai.domain.yang.Connector;
 import org.onap.aai.domain.yang.Customer;
 import org.onap.aai.domain.yang.Device;
+import org.onap.aai.domain.yang.EsrSystemInfoList;
+import org.onap.aai.domain.yang.EsrVnfm;
+import org.onap.aai.domain.yang.EsrVnfmList;
 import org.onap.aai.domain.yang.ExtAaiNetwork;
 import org.onap.aai.domain.yang.Flavor;
 import org.onap.aai.domain.yang.GenericVnf;
@@ -139,6 +142,10 @@ public class AAIObjectType implements GraphInventoryObjectType, Serializable {
 	public static final AAIObjectType FLAVOR = new AAIObjectType(AAIObjectType.CLOUD_REGION.uriTemplate(), Flavor.class);
 	public static final AAIObjectType UNKNOWN = new AAIObjectType("", "", "unknown");
 	public static final AAIObjectType DSL = new AAIObjectType("/dsl", "", "dsl");
+    public static final AAIObjectType VNFM = new AAIObjectType(AAINamespaceConstants.EXTERNAL_SYSTEM + "/esr-vnfm-list/esr-vnfm/{vnfm-id}", EsrVnfm.class);
+    public static final AAIObjectType VNFM_LIST = new AAIObjectType(AAINamespaceConstants.EXTERNAL_SYSTEM, "/esr-vnfm-list", "vnfm-list");
+    public static final AAIObjectType VNFM_ESR_SYSTEM_INFO_LIST = new AAIObjectType(AAINamespaceConstants.EXTERNAL_SYSTEM + "/esr-vnfm-list", "/esr-vnfm/{vnfm-id}/esr-system-info-list", "vnfm-esr-system-info-list");
+
 
 	private final String uriTemplate;
 	private final String parentUri;
diff --git a/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProvider.java b/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProvider.java
index 43b2fb4292..7fb5adcb5b 100644
--- a/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProvider.java
+++ b/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProvider.java
@@ -20,9 +20,8 @@
 
 package org.onap.so.rest.service;
 
-import org.springframework.http.ResponseEntity;
-
 import com.google.common.base.Optional;
+import org.springframework.http.ResponseEntity;
 
 /**
  * @author waqas.ikram@est.tech
@@ -31,42 +30,62 @@ public interface HttpRestServiceProvider {
 
     /**
      * Execute the HTTP GET to the given URI template
-     * 
+     *
      * @param url the URL
      * @param clazz the type of the return value
      * @return Returns the body of this entity.
      */
-    public <T> Optional<T> get(final String url, final Class<T> clazz);
+    <T> Optional<T> get(final String url, final Class<T> clazz);
 
     /**
      * Execute the HTTP GET to the given URI template
-     * 
+     *
      * @param url the URL
      * @param clazz the type of the return value
      * @return Returns the {@link ResponseEntity}.
      */
-    public <T> ResponseEntity<T> getHttpResponse(final String url, final Class<T> clazz);
+    <T> ResponseEntity<T> getHttpResponse(final String url, final Class<T> clazz);
 
 
     /**
      * Execute the HTTP POST to the given URI template
-     * 
+     *
      * @param object the entity (i.e. body) to write to the request
      * @param url the URL
      * @param clazz the type of the return value
      * @return Returns the body of this entity.
      */
-    public <T> Optional<T> post(final Object object, final String url, final Class<T> clazz);
+    <T> Optional<T> post(final Object object, final String url, final Class<T> clazz);
 
     /**
      * Execute the HTTP POST to the given URI template
-     * 
+     *
+     * @param object the entity (i.e. body) to write to the request
+     * @param url the URL
+     * @param clazz the type of the return value
+     * @return Returns the {@link ResponseEntity}.
+     */
+    <T> ResponseEntity<T> postHttpRequest(final Object object, final String url, final Class<T> clazz);
+
+    /**
+     * Execute the HTTP PUT to the given URI template
+     *
+     * @param object the entity (i.e. body) to write to the request
+     * @param url the URL
+     * @param clazz the type of the return value
+     * @return Returns the body of this entity.
+     */
+    <T> Optional<T> put(final Object object, final String url, final Class<T> clazz);
+
+    /**
+     * Execute the HTTP PUT to the given URI template
+     *
      * @param object the entity (i.e. body) to write to the request
      * @param url the URL
      * @param clazz the type of the return value
      * @return Returns the {@link ResponseEntity}.
      */
-    public <T> ResponseEntity<T> postHttpRequest(final Object object, final String url, final Class<T> clazz);
+    <T> ResponseEntity<T> putHttpRequest(final Object object, final String url, final Class<T> clazz);
 
 
 }
diff --git a/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProviderImpl.java b/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProviderImpl.java
index 032df84a98..d3cc1747a3 100644
--- a/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProviderImpl.java
+++ b/common/src/main/java/org/onap/so/rest/service/HttpRestServiceProviderImpl.java
@@ -20,6 +20,7 @@
 
 package org.onap.so.rest.service;
 
+import com.google.common.base.Optional;
 import org.onap.so.configuration.rest.BasicHttpHeadersProvider;
 import org.onap.so.configuration.rest.HttpHeadersProvider;
 import org.onap.so.rest.exceptions.InvalidRestRequestException;
@@ -35,11 +36,9 @@ import org.springframework.web.client.HttpClientErrorException;
 import org.springframework.web.client.RestClientException;
 import org.springframework.web.client.RestTemplate;
 
-import com.google.common.base.Optional;
-
 /**
  * A Service to perform HTTP requests
- * 
+ *
  * @author waqas.ikram@est.tech
  */
 public class HttpRestServiceProviderImpl implements HttpRestServiceProvider {
@@ -61,49 +60,45 @@ public class HttpRestServiceProviderImpl implements HttpRestServiceProvider {
     @Override
     public <T> Optional<T> get(final String url, final Class<T> clazz) {
         final ResponseEntity<T> response = getHttpResponse(url, clazz);
-        if (!response.getStatusCode().equals(HttpStatus.OK)) {
-            final String message =
-                    "Unable to invoke HTTP GET using URL: " + url + ", Response Code: " + response.getStatusCode();
-            LOGGER.error(message);
-            return Optional.absent();
-        }
-
-        if (response.hasBody()) {
-            return Optional.of(response.getBody());
-        }
-        return Optional.absent();
+        return createOptional(response, url, HttpMethod.GET);
     }
 
 
     @Override
     public <T> ResponseEntity<T> getHttpResponse(final String url, final Class<T> clazz) {
-        LOGGER.trace("Will invoke HTTP GET using URL: {}", url);
-        try {
-            final HttpEntity<?> request = new HttpEntity<>(getHttpHeaders());
-            return restTemplate.exchange(url, HttpMethod.GET, request, clazz);
-
-        } catch (final HttpClientErrorException httpClientErrorException) {
-            final String message = "Unable to invoke HTTP GET using url: " + url + ", Response: "
-                    + httpClientErrorException.getRawStatusCode();
-            LOGGER.error(message, httpClientErrorException);
-            final int rawStatusCode = httpClientErrorException.getRawStatusCode();
-            if (rawStatusCode == HttpStatus.BAD_REQUEST.value() || rawStatusCode == HttpStatus.NOT_FOUND.value()) {
-                throw new InvalidRestRequestException("No result found for given url: " + url);
-            }
-            throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url);
-
-        } catch (final RestClientException restClientException) {
-            LOGGER.error("Unable to invoke HTTP GET using url: {}", url, restClientException);
-            throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url, restClientException);
-        }
+        final HttpEntity<?> request = new HttpEntity<>(getHttpHeaders());
+        return invokeHttpRequest(request, HttpMethod.GET, url, clazz);
     }
 
     @Override
     public <T> Optional<T> post(final Object object, final String url, final Class<T> clazz) {
         final ResponseEntity<T> response = postHttpRequest(object, url, clazz);
+        return createOptional(response, url, HttpMethod.POST);
+    }
+
+    @Override
+    public <T> ResponseEntity<T> postHttpRequest(final Object object, final String url, final Class<T> clazz) {
+        final HttpEntity<?> request = new HttpEntity<>(object, getHttpHeaders());
+        return invokeHttpRequest(request, HttpMethod.POST, url, clazz);
+    }
+
+    @Override
+    public <T> Optional<T> put(final Object object, final String url, final Class<T> clazz) {
+        final ResponseEntity<T> response = putHttpRequest(object, url, clazz);
+        return createOptional(response, url, HttpMethod.PUT);
+    }
+
+    @Override
+    public <T> ResponseEntity<T> putHttpRequest(final Object object, final String url, final Class<T> clazz) {
+        final HttpEntity<?> request = new HttpEntity<>(object, getHttpHeaders());
+        return invokeHttpRequest(request, HttpMethod.PUT, url, clazz);
+    }
+
+    private <T> Optional<T> createOptional(final ResponseEntity<T> response, final String url,
+            final HttpMethod httpMethod) {
         if (!response.getStatusCode().equals(HttpStatus.OK)) {
-            final String message =
-                    "Unable to invoke HTTP GET using URL: " + url + ", Response Code: " + response.getStatusCode();
+            final String message = "Unable to invoke HTTP " + httpMethod + " using URL: " + url + ", Response Code: "
+                    + response.getStatusCode();
             LOGGER.error(message);
             return Optional.absent();
         }
@@ -115,26 +110,26 @@ public class HttpRestServiceProviderImpl implements HttpRestServiceProvider {
         return Optional.absent();
     }
 
-
-    @Override
-    public <T> ResponseEntity<T> postHttpRequest(final Object object, final String url, final Class<T> clazz) {
+    private <T> ResponseEntity<T> invokeHttpRequest(final HttpEntity<?> request, final HttpMethod httpMethod,
+            final String url, final Class<T> clazz) {
+        LOGGER.trace("Will invoke HTTP {} using URL: {}", httpMethod, url);
         try {
-            final HttpEntity<?> request = new HttpEntity<>(object, getHttpHeaders());
-            return restTemplate.exchange(url, HttpMethod.POST, request, clazz);
+            return restTemplate.exchange(url, httpMethod, request, clazz);
 
         } catch (final HttpClientErrorException httpClientErrorException) {
-            final String message = "Unable to invoke HTTP POST using url: " + url + ", Response: "
+            final String message = "Unable to invoke HTTP " + httpMethod + " using url: " + url + ", Response: "
                     + httpClientErrorException.getRawStatusCode();
             LOGGER.error(message, httpClientErrorException);
             final int rawStatusCode = httpClientErrorException.getRawStatusCode();
             if (rawStatusCode == HttpStatus.BAD_REQUEST.value() || rawStatusCode == HttpStatus.NOT_FOUND.value()) {
                 throw new InvalidRestRequestException("No result found for given url: " + url);
             }
-            throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url);
+            throw new RestProcessingException("Unable to invoke HTTP " + httpMethod + " using URL: " + url);
 
         } catch (final RestClientException restClientException) {
             LOGGER.error("Unable to invoke HTTP POST using url: {}", url, restClientException);
-            throw new RestProcessingException("Unable to invoke HTTP GET using URL: " + url, restClientException);
+            throw new RestProcessingException("Unable to invoke HTTP " + httpMethod + " using URL: " + url,
+                    restClientException);
         }
     }