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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.entity;
import net.dongliu.gson.GsonJava8TypeAdapterFactory;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.annotations.SerializedName;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
public class Edge {
private static final Gson gson = new GsonBuilder().registerTypeAdapterFactory(new GsonJava8TypeAdapterFactory())
.create();
@SerializedName(value = "id", alternate = { "key" })
private final Optional<String> id;
private final String type;
private final Map<String, Object> properties;
private final Vertex source;
private final Vertex target;
private Edge(Builder builder) {
this.id = builder.id;
this.type = builder.type;
this.source = builder.source;
this.target = builder.target;
this.properties = builder.properties;
}
public static class Builder {
private Optional<String> id = Optional.empty();
private final String type;
private Vertex source;
private Vertex target;
private final Map<String, Object> properties = new HashMap<String, Object>();
public Builder(String type) {
if (type == null) {
throw new IllegalArgumentException("Type cannot be null");
}
this.type = type;
}
public Builder id(String id) {
if (id == null) {
throw new IllegalArgumentException("id cannot be null");
}
this.id = Optional.of(id);
return this;
}
public Builder property(String key, Object value) {
if (key == null || value == null) {
throw new IllegalArgumentException("Property key/value cannot be null");
}
properties.put(key, value);
return this;
}
public Builder source(Vertex source) {
this.source = source;
return this;
}
public Builder target(Vertex target) {
this.target = target;
return this;
}
public Edge build() {
return new Edge(this);
}
}
@Override
public String toString() {
return "Edge [id=" + id + ", type=" + type + ", properties=" + properties + ", source=" + source + ", target="
+ target + "]";
}
public String toJson() {
return gson.toJson(this);
}
public String toJson(Gson customGson) {
return customGson.toJson(this);
}
public static Edge fromJson(String jsonString) {
return gson.fromJson(jsonString, Edge.class);
}
public Optional<String> getId() {
return id;
}
public String getType() {
return type;
}
public Map<String, Object> getProperties() {
return properties;
}
public Vertex getSource() {
return source;
}
public Vertex getTarget() {
return target;
}
}
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