1 files changed, 125 insertions, 0 deletions
diff --git a/graph-inventory/aai-client/src/main/java/org/onap/aaiclient/client/graphinventory/entities/GraphInventoryResultWrapper.java b/graph-inventory/aai-client/src/main/java/org/onap/aaiclient/client/graphinventory/entities/GraphInventoryResultWrapper.java
new file mode 100644
index 0000000000..9e6572388b
--- /dev/null
+++ b/graph-inventory/aai-client/src/main/java/org/onap/aaiclient/client/graphinventory/entities/GraphInventoryResultWrapper.java
@@ -0,0 +1,125 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ================================================================================
+ * 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.aaiclient.client.graphinventory.entities;
+
+import java.io.IOException;
+import java.io.Serializable;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+import org.onap.aaiclient.client.graphinventory.GraphInventoryCommonObjectMapperProvider;
+import org.onap.so.jsonpath.JsonPathUtil;
+import org.slf4j.Logger;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public abstract class GraphInventoryResultWrapper<R extends GraphInventoryRelationships<?, ?, ?>>
+        implements Serializable {
+
+    private static final long serialVersionUID = 5895841925807816727L;
+    protected final String jsonBody;
+    protected final ObjectMapper mapper;
+    private final transient Logger logger;
+
+    protected GraphInventoryResultWrapper(String json, Logger logger) {
+        this.jsonBody = json;
+        this.mapper = new GraphInventoryCommonObjectMapperProvider().getMapper();
+        this.logger = logger;
+    }
+
+    protected GraphInventoryResultWrapper(Object aaiObject, Logger logger) {
+        this.mapper = new GraphInventoryCommonObjectMapperProvider().getMapper();
+        this.jsonBody = mapObjectToString(aaiObject);
+        this.logger = logger;
+    }
+
+    protected String mapObjectToString(Object aaiObject) {
+        try {
+            return mapper.writeValueAsString(aaiObject);
+        } catch (JsonProcessingException e) {
+            logger.warn("could not parse object into json - defaulting to empty object");
+            return "{}";
+        }
+    }
+
+    public Optional<R> getRelationships() {
+        final String path = "$.relationship-list";
+        if (isEmpty()) {
+            return Optional.empty();
+        }
+        Optional<String> result = JsonPathUtil.getInstance().locateResult(jsonBody, path);
+        if (result.isPresent()) {
+            return Optional.of(createRelationships(result.get()));
+        } else {
+            return Optional.empty();
+        }
+    }
+
+    protected abstract R createRelationships(String json);
+
+    public String getJson() {
+        if (jsonBody == null) {
+            return "{}";
+        } else {
+            return jsonBody;
+        }
+    }
+
+    public Map<String, Object> asMap() {
+
+        return asBean(new TypeReference<Map<String, Object>>() {}).orElse(new HashMap<>());
+    }
+
+    public <T> Optional<T> asBean(Class<T> clazz) {
+        if (isEmpty()) {
+            return Optional.empty();
+        }
+        try {
+            return Optional.of(mapper.readValue(this.jsonBody, clazz));
+        } catch (IOException e) {
+            return Optional.empty();
+        }
+    }
+
+    public <T> Optional<T> asBean(TypeReference<T> reference) {
+        if (isEmpty()) {
+            return Optional.empty();
+        }
+        try {
+            return Optional.of(mapper.readValue(this.jsonBody, reference));
+        } catch (IOException e) {
+            return Optional.empty();
+        }
+    }
+
+    public boolean isEmpty() {
+        return jsonBody == null;
+    }
+
+    @Override
+    public String toString() {
+        return this.getJson();
+    }
+
+}