com.skysql.manager.api.CommandsDeserializer.java Source code

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Here is the source code for com.skysql.manager.api.CommandsDeserializer.java

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/*
 * This file is distributed as part of the MariaDB Manager.  It is free
 * software: you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation,
 * version 2.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Copyright 2012-2014 SkySQL Corporation Ab
 */

package com.skysql.manager.api;

import java.lang.reflect.Type;
import java.util.LinkedHashMap;

import com.google.gson.JsonArray;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.skysql.manager.Commands;

// {"commands":[{"command":"backup","description":"Backup Offline Slave Node","steps":"backup"},{"command":"restore","description":"Restore Offline Slave Node","steps":"restore"}]}

/**
 * The Class CommandsDeserializer.
 */
public class CommandsDeserializer implements JsonDeserializer<Commands> {
    public Commands deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException, NullPointerException {
        Commands commands = new Commands();

        JsonElement jsonElement = json.getAsJsonObject().get("commands");
        if (jsonElement.isJsonNull()) {
            commands.setDescriptions(null);
            commands.setNames(null);
            commands.setSteps(null);
        } else {
            JsonArray array = jsonElement.getAsJsonArray();
            int length = array.size();

            LinkedHashMap<String, String> descriptions = new LinkedHashMap<String, String>(length);
            LinkedHashMap<String, String> names = new LinkedHashMap<String, String>(length);
            LinkedHashMap<String, String> steps = new LinkedHashMap<String, String>(length);
            for (int i = 0; i < length; i++) {
                JsonObject pair = array.get(i).getAsJsonObject();
                String command = pair.get("command").getAsString();
                descriptions.put(command, pair.get("description").getAsString());
                names.put(command, command);
                steps.put(command, pair.get("steps").getAsString());
            }
            commands.setDescriptions(descriptions);
            commands.setNames(names);
            commands.setSteps(steps);
        }

        return commands;
    }

}