com.gemini.domain.dto.deserialize.GeminiSubnetAllocationPoolDeserializer.java Source code

Introduction

Here is the source code for com.gemini.domain.dto.deserialize.GeminiSubnetAllocationPoolDeserializer.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.gemini.domain.dto.deserialize;

import com.gemini.domain.dto.GeminiServerDTO;
import com.gemini.domain.dto.GeminiSubnetAllocationPoolDTO;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSyntaxException;
import java.lang.reflect.Type;
import org.pmw.tinylog.Logger;

/**
 *
 * @author schari
 */
public class GeminiSubnetAllocationPoolDeserializer implements JsonDeserializer<GeminiSubnetAllocationPoolDTO> {

    @Override
    public GeminiSubnetAllocationPoolDTO deserialize(JsonElement json, Type typeOfT,
            JsonDeserializationContext context) throws JsonParseException {
        GeminiSubnetAllocationPoolDTO newAllocPool = new GeminiSubnetAllocationPoolDTO();
        //ignore the parent, it will be set when the parent subnet is deserialized

        try {
            newAllocPool.setStart(json.getAsJsonObject().get("start").getAsString());
        } catch (NullPointerException | JsonSyntaxException | IllegalStateException ex) {
            Logger.error("Malformed JSON - invalid subnet allocation pool, no start specified");
        }

        try {
            newAllocPool.setEnd(json.getAsJsonObject().get("end").getAsString());
        } catch (NullPointerException | JsonSyntaxException | IllegalStateException ex) {
            Logger.error("Malformed JSON - invalid subnet allocation pool, no end specified");
        }

        //now the servers
        try {
            JsonArray serverArray = json.getAsJsonObject().get("servers").getAsJsonArray();
            for (JsonElement e : serverArray) {
                //we don't need a custom deserializer for the server object because it is a simple
                //class with no hierarchical references to other objects 
                newAllocPool.addServer(new Gson().fromJson(e, GeminiServerDTO.class));
            }
        } catch (NullPointerException npe) {
            Logger.debug("No servers in allocation pool {} {}", newAllocPool.getStart(), newAllocPool.getEnd());
        }
        return newAllocPool;
    }
}