com.joyfulmongo.db.ContainerObjectFactory.java Source code

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Here is the source code for com.joyfulmongo.db.ContainerObjectFactory.java

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/*
 * Copyright 2014 Weifeng Bao
 *
 * 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.joyfulmongo.db;

import org.json.JSONObject;

public class ContainerObjectFactory {
    public enum TypeProps {
        __type, __op,
    }

    public enum OpType {
        Add, AddRelation, RemoveRelation, Increment, other;

        public static OpType getEnum(String str) {
            OpType result = other;
            OpType[] types = OpType.values();
            for (OpType type : types) {
                if (type.toString().equals(str)) {
                    result = type;
                    break;
                }
            }

            return result;
        }
    }

    public enum TypeType {
        Pointer, Object, GeoPoint, Relation, Date, other;

        public static TypeType getEnum(String str) {
            TypeType result = other;
            TypeType[] types = TypeType.values();
            for (TypeType type : types) {
                if (type.toString().equals(str)) {
                    result = type;
                    break;
                }
            }

            return result;
        }
    }

    public static ContainerObject getChildObject(String key, Object json) {
        ContainerObject result = null;
        if (json instanceof JSONObject) {
            JSONObject childJson = (JSONObject) json;
            String type = childJson.optString(TypeProps.__type.toString());
            if (type == null || type.length() == 0) {
                String optype = childJson.optString(TypeProps.__op.toString());
                if (optype == null || optype.length() == 0) {
                    result = null;
                } else {
                    result = getOpCmd(key, optype, childJson);
                }
            } else {
                result = getTypedObject(key, type, childJson);
            }
        }

        return result;
    }

    private static OpCmd getOpCmd(String key, String type, JSONObject json) {
        OpType optype = OpType.getEnum(type);
        OpCmd result = null;
        switch (optype) {
        case Add:
            result = new OpCmdAdd(key, json);
            break;
        case AddRelation:
            result = new OpCmdAddRelation(key, json);
            break;
        case RemoveRelation:
            result = new OpCmdRemoveRelation(key, json);
            break;
        case Increment:
            result = new OpCmdIncrease(key, json);
            break;
        case other:
        default:
        }

        return result;
    }

    private static ContainerObject getTypedObject(String key, String type, JSONObject json) {
        TypeType optype = TypeType.getEnum(type);
        ContainerObject result;
        switch (optype) {
        case Pointer:
            result = new ContainerObjectPointer(key, json);
            break;
        case Object:
            result = new ContainerObjectPointerObject(key, json);
            break;
        case GeoPoint:
            result = new ContainerObjectGeoPoint(key, json);
            break;
        case Relation:
            result = new ContainerObjectRelation(key, json);
            break;
        case Date:
            result = new ContainerObjectDate(key, json);
            break;
        case other:
        default:
            result = new ContainerObjectDefault(key, json);
            break;
        }

        return result;
    }
}