1 files changed, 80 insertions, 0 deletions
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/queryformats/Formatter.java b/aai-core/src/main/java/org/onap/aai/serialization/queryformats/Formatter.java
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+++ b/aai-core/src/main/java/org/onap/aai/serialization/queryformats/Formatter.java
@@ -0,0 +1,80 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.aai.serialization.queryformats;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import org.onap.aai.serialization.queryformats.exceptions.AAIFormatVertexException;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Stream;
+
+public class Formatter {
+
+	private static final EELFLogger LOGGER = EELFManager.getInstance().getLogger(Formatter.class);
+
+	protected JsonParser parser = new JsonParser();
+	protected final FormatMapper format;
+	public Formatter (FormatMapper format) {
+		this.format = format;
+	}
+	
+	public JsonObject output(List<Object> vertices) {
+		Stream<Object> stream = null;
+		JsonObject result = new JsonObject();
+		JsonArray body = new JsonArray();
+		if (vertices.size() >= format.parallelThreshold()) {
+			stream = vertices.parallelStream();
+		} else {
+			stream = vertices.stream();
+		}
+		final boolean isParallel = stream.isParallel();
+		stream.map(v -> {
+			try {
+				return Optional.<JsonObject>of(format.formatObject(v));
+			} catch (AAIFormatVertexException e) {
+				LOGGER.warn("Failed to format vertex, returning a partial list", e);
+			}
+
+			return Optional.<JsonObject>empty();
+		}).forEach(obj -> {
+			if (obj.isPresent()) {
+				if (isParallel) {
+					synchronized (body) {
+						body.add(obj.get());
+					}
+				} else {
+					body.add(obj.get());
+				}
+			}
+		});
+		
+		result.add("results", body);
+		
+		return result.getAsJsonObject();
+	}
+	
+}