1 files changed, 126 insertions, 0 deletions
diff --git a/common/src/main/java/org/onap/so/client/aai/entities/uri/ServiceInstanceUri.java b/common/src/main/java/org/onap/so/client/aai/entities/uri/ServiceInstanceUri.java
new file mode 100644
index 0000000000..093918d49b
--- /dev/null
+++ b/common/src/main/java/org/onap/so/client/aai/entities/uri/ServiceInstanceUri.java
@@ -0,0 +1,126 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * 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.so.client.aai.entities.uri;
+
+import java.io.IOException;
+import java.net.URI;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Optional;
+
+import javax.ws.rs.BadRequestException;
+import javax.ws.rs.core.UriBuilder;
+
+import org.onap.so.client.aai.AAIObjectType;
+import org.onap.so.client.aai.AAIQueryClient;
+import org.onap.so.client.graphinventory.Format;
+import org.onap.so.client.aai.entities.CustomQuery;
+import org.onap.so.client.aai.entities.Results;
+import org.onap.so.client.graphinventory.entities.uri.SimpleUri;
+import org.onap.so.client.graphinventory.exceptions.GraphInventoryPayloadException;
+import org.onap.so.client.graphinventory.exceptions.GraphInventoryUriComputationException;
+import org.onap.so.client.graphinventory.exceptions.GraphInventoryUriNotFoundException;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class ServiceInstanceUri extends AAISimpleUri {
+
+	private Optional<String> cachedValue = Optional.empty();
+
+	protected ServiceInstanceUri(Object... values) {
+		super(AAIObjectType.SERVICE_INSTANCE, values);
+	}
+	protected ServiceInstanceUri(UriBuilder builder, Optional<String> cachedValue, Object... values) {
+		super(AAIObjectType.SERVICE_INSTANCE, builder, values);
+		this.cachedValue = cachedValue;
+	}
+	protected String getSerivceInstance(Object id) throws GraphInventoryUriNotFoundException, GraphInventoryPayloadException {
+		if (!this.getCachedValue().isPresent()) {
+			AAIResourceUri serviceInstanceUri = AAIUriFactory.createNodesUri(AAIObjectType.SERVICE_INSTANCE, id);
+			CustomQuery query = new CustomQuery(Collections.singletonList(serviceInstanceUri));
+			String resultJson;
+			try {
+				resultJson = this.getQueryClient().query(Format.PATHED, query);
+			} catch (BadRequestException e) {
+				throw new GraphInventoryUriNotFoundException("Service instance " + id + " not found at: " + serviceInstanceUri.build());
+				
+			}
+			try {
+				cachedValue = extractRelatedLink(resultJson);
+				if (!cachedValue.isPresent()) {
+					throw new GraphInventoryUriNotFoundException("Service instance " + id + " not found at: " + serviceInstanceUri.build());
+				}
+			} catch (IOException e) {
+				throw new GraphInventoryPayloadException("could not map payload: " + resultJson, e);
+			}
+		}
+		Optional<String> cachedValueOpt = this.getCachedValue();
+		return cachedValueOpt.isPresent() ? cachedValueOpt.get() : "";
+	}
+	
+	protected Optional<String> extractRelatedLink(String jsonString) throws IOException {
+		Optional<String> result;
+		ObjectMapper mapper = new ObjectMapper();
+		
+		Results<Map<String, String>> results = mapper.readValue(jsonString, new TypeReference<Results<Map<String, String>>>(){});
+		if (results.getResult().size() == 1) {
+			String uriString = results.getResult().get(0).get("resource-link");
+			URI uri = UriBuilder.fromUri(uriString).build();
+			String rawPath = uri.getRawPath();
+			result = Optional.of(rawPath.replaceAll("/aai/v\\d+", ""));
+		} else if (results.getResult().isEmpty()) {
+			result = Optional.empty();
+		} else {
+			throw new IllegalStateException("more than one result returned");
+		}
+	
+		return result;
+	}
+	
+	protected Optional<String> getCachedValue() {
+		return this.cachedValue;
+	}
+
+	@Override
+	public URI build() {
+		try {
+			if (this.values.length == 1) {
+				String uri = getSerivceInstance(this.values[0]);
+				Map<String, String> map = getURIKeys(uri);
+				return super.build(map.values().toArray(values));
+			}
+		} catch (GraphInventoryUriNotFoundException | GraphInventoryPayloadException e) {
+			throw new GraphInventoryUriComputationException(e);
+		}
+		return super.build();
+	}
+	
+	@Override
+	public ServiceInstanceUri clone() {
+		return new ServiceInstanceUri(this.internalURI.clone(), this.getCachedValue(), values);
+	}
+	
+	protected AAIQueryClient getQueryClient() {
+		AAIResourceUri uri = AAIUriFactory.createNodesUri(AAIObjectType.ALLOTTED_RESOURCE, "").clone();
+		return new AAIQueryClient();
+	}
+}