Java tutorial
/* * Copyright 2012-2014, Continuuity, Inc. * * 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. */ package com.continuuity.loom.codec.json.current; import com.continuuity.loom.admin.Administration; import com.continuuity.loom.admin.ClusterDefaults; import com.continuuity.loom.admin.ClusterTemplate; import com.continuuity.loom.admin.Compatibilities; import com.continuuity.loom.admin.Constraints; import com.continuuity.loom.codec.json.AbstractCodec; import com.google.gson.JsonDeserializationContext; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.google.gson.JsonParseException; import com.google.gson.JsonSerializationContext; import java.lang.reflect.Type; /** * Codec for serializing/deserializing a {@link ClusterTemplate}. */ public class ClusterTemplateCodec extends AbstractCodec<ClusterTemplate> { @Override public JsonElement serialize(ClusterTemplate clusterTemplate, Type type, JsonSerializationContext context) { JsonObject jsonObj = new JsonObject(); jsonObj.add("name", context.serialize(clusterTemplate.getName())); jsonObj.add("description", context.serialize(clusterTemplate.getDescription())); jsonObj.add("defaults", context.serialize(clusterTemplate.getClusterDefaults())); jsonObj.add("compatibility", context.serialize(clusterTemplate.getCompatibilities())); jsonObj.add("constraints", context.serialize(clusterTemplate.getConstraints(), Constraints.class)); jsonObj.add("administration", context.serialize(clusterTemplate.getAdministration(), Administration.class)); return jsonObj; } @Override public ClusterTemplate deserialize(JsonElement json, Type type, JsonDeserializationContext context) throws JsonParseException { JsonObject jsonObj = json.getAsJsonObject(); String name = context.deserialize(jsonObj.get("name"), String.class); String description = context.deserialize(jsonObj.get("description"), String.class); ClusterDefaults defaults = context.deserialize(jsonObj.get("defaults"), ClusterDefaults.class); Compatibilities compatibilites = context.deserialize(jsonObj.get("compatibility"), Compatibilities.class); Constraints constraints = context.deserialize(jsonObj.get("constraints"), Constraints.class); Administration administration = context.deserialize(jsonObj.get("administration"), Administration.class); return new ClusterTemplate(name, description, defaults, compatibilites, constraints, administration); } }