com.ericsson.gerrit.plugins.highavailability.forwarder.rest.GsonParser.java Source code

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Here is the source code for com.ericsson.gerrit.plugins.highavailability.forwarder.rest.GsonParser.java

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// Copyright (C) 2015 The Android Open Source Project
//
// 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.ericsson.gerrit.plugins.highavailability.forwarder.rest;

import com.ericsson.gerrit.plugins.highavailability.cache.Constants;
import com.google.common.base.Strings;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

final class GsonParser {

    private GsonParser() {
    }

    static Object fromJson(String cacheName, String json) {
        Gson gson = new GsonBuilder().create();
        Object key;
        // Need to add a case for 'adv_bases'
        switch (cacheName) {
        case Constants.ACCOUNTS:
            key = gson.fromJson(Strings.nullToEmpty(json).trim(), Account.Id.class);
            break;
        case Constants.GROUPS:
            key = gson.fromJson(Strings.nullToEmpty(json).trim(), AccountGroup.Id.class);
            break;
        case Constants.GROUPS_BYINCLUDE:
        case Constants.GROUPS_MEMBERS:
            key = gson.fromJson(Strings.nullToEmpty(json).trim(), AccountGroup.UUID.class);
            break;
        case Constants.PROJECT_LIST:
            key = gson.fromJson(Strings.nullToEmpty(json), Object.class);
            break;
        default:
            try {
                key = gson.fromJson(Strings.nullToEmpty(json).trim(), String.class);
            } catch (Exception e) {
                key = gson.fromJson(Strings.nullToEmpty(json), Object.class);
            }
        }
        return key;
    }

    static String toJson(String cacheName, Object key) {
        Gson gson = new GsonBuilder().create();
        String json;
        // Need to add a case for 'adv_bases'
        switch (cacheName) {
        case Constants.ACCOUNTS:
            json = gson.toJson(key, Account.Id.class);
            break;
        case Constants.GROUPS:
            json = gson.toJson(key, AccountGroup.Id.class);
            break;
        case Constants.GROUPS_BYINCLUDE:
        case Constants.GROUPS_MEMBERS:
            json = gson.toJson(key, AccountGroup.UUID.class);
            break;
        case Constants.PROJECT_LIST:
        default:
            json = gson.toJson(key);
        }
        return json;
    }
}