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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 Amdocs
* ================================================================================
* 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.crud.event;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.annotations.SerializedName;
import com.google.gson.reflect.TypeToken;
import org.onap.crud.entity.Edge;
import org.onap.crud.entity.Vertex;
import org.onap.crud.exception.CrudException;
import java.util.Map;
import javax.ws.rs.core.Response.Status;
/**
* This class provides a generic representation of an Edge as provided by the
* graph data store.
*/
public class GraphEventEdge {
/**
* The unique identifier used to identify this edge in the graph data store.
*/
@SerializedName("key")
private String id;
@SerializedName("schema-version")
private String modelVersion;
/**
* Type label assigned to this vertex.
*/
private String type;
/**
* Source vertex for our edge.
*/
private GraphEventVertex source;
/**
* Target vertex for our edge.
*/
private GraphEventVertex target;
/**
* Map of all of the properties assigned to this vertex.
*/
private JsonElement properties;
/**
* Marshaller/unmarshaller for converting to/from JSON.
*/
private static final Gson gson = new GsonBuilder().disableHtmlEscaping().create();
public GraphEventEdge(String id, String modelVersion, String type, GraphEventVertex source,
GraphEventVertex target, JsonElement properties) {
this.id = id;
this.modelVersion = modelVersion;
this.type = type;
this.source = source;
this.target = target;
this.properties = properties;
}
public GraphEventEdge() {
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public GraphEventVertex getSource() {
return source;
}
public void setSource(GraphEventVertex source) {
this.source = source;
}
public GraphEventVertex getTarget() {
return target;
}
public void setTarget(GraphEventVertex target) {
this.target = target;
}
public JsonElement getProperties() {
return properties;
}
public void setProperties(JsonElement properties) {
this.properties = properties;
}
public String getModelVersion() {
return modelVersion;
}
public void setModelVersion(String modelVersion) {
this.modelVersion = modelVersion;
}
/**
* Unmarshalls this Edge object into a JSON string.
*
* @return - A JSON format string representation of this Edge.
*/
public String toJson() {
return gson.toJson(this);
}
/**
* Marshalls the provided JSON string into a Edge object.
*
* @param json - The JSON string to produce the Edge from.
* @return - A Edge object.
* @throws SpikeException
*/
public static GraphEventEdge fromJson(String json) throws CrudException {
try {
// Make sure that we were actually provided a non-empty string
// before we
// go any further.
if (json == null || json.isEmpty()) {
throw new CrudException("Unable to parse JSON string: ", Status.BAD_REQUEST);
}
// Marshall the string into an Edge object.
return gson.fromJson(json, GraphEventEdge.class);
} catch (Exception ex) {
throw new CrudException("Unable to parse JSON string: ", Status.BAD_REQUEST);
}
}
public static GraphEventEdge fromEdge(Edge edge, String modelVersion) {
java.lang.reflect.Type mapType = new TypeToken<Map<String, Object>>() {}.getType();
JsonObject props = gson.toJsonTree(edge.getProperties(), mapType).getAsJsonObject();
GraphEventEdge graphEventEdge = new GraphEventEdge(edge.getId().orElse(""), modelVersion,
edge.getType(), new GraphEventVertex(edge.getSource().getId().orElse(""), null,
edge.getSource().getType(), null), new GraphEventVertex(edge.getTarget().getId().orElse(""),
null, edge.getTarget().getType(), null), props);
return graphEventEdge;
}
public Edge toEdge() {
Edge.Builder builder = new Edge.Builder(this.getType()).id(this.getId());
if (this.getSource() != null) {
builder.source(new Vertex.Builder(this.getSource().getType()).id(this.getSource().getId())
.build());
}
if (this.getTarget() != null) {
builder.target(new Vertex.Builder(this.getTarget().getType()).id(this.getTarget().getId())
.build());
}
if (this.getProperties() != null) {
java.lang.reflect.Type mapType = new TypeToken<Map<String, Object>>() {}.getType();
Map<String, Object> propertiesMap = gson.fromJson(this.getProperties(), mapType);
for (String key : propertiesMap.keySet()) {
builder.property(key, propertiesMap.get(key));
}
}
return builder.build();
}
}
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