com.hybris.datahub.service.impl.DefaultJsonService.java Source code

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Here is the source code for com.hybris.datahub.service.impl.DefaultJsonService.java

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/*
 * [y] hybris Platform
 *
 * Copyright (c) 2000-2016 hybris AG
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of hybris
 * ("Confidential Information"). You shall not disclose such Confidential
 * Information and shall use it only in accordance with the terms of the
 * license agreement you entered into with hybris.
 */
package com.hybris.datahub.service.impl;

import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.hybris.datahub.service.JsonService;

/**
 * DefaultJsonService
 */
public class DefaultJsonService implements JsonService {
    private static final Logger LOG = LoggerFactory.getLogger(DefaultJsonService.class);

    @Override
    public List<Map<String, String>> parse(final String json) {
        final List<Map<String, String>> result = new LinkedList<Map<String, String>>();
        final JsonElement jsonElement = new JsonParser().parse(json);
        if (jsonElement.isJsonArray()) {
            final Iterator<JsonElement> iterator = jsonElement.getAsJsonArray().iterator();
            while (iterator.hasNext()) {
                final JsonElement jsonElementInArray = iterator.next();
                result.add(convertJsonObject(jsonElementInArray.getAsJsonObject()));
            }
        } else if (jsonElement.isJsonObject()) {
            result.add(convertJsonObject(jsonElement.getAsJsonObject()));
        }
        return result;
    }

    private Map<String, String> convertJsonObject(final JsonObject jsonObject) {
        LOG.debug("Convert json object: " + jsonObject.toString());

        final Map<String, String> result = new HashMap<String, String>();
        for (final Entry<String, JsonElement> entry : jsonObject.entrySet()) {
            final JsonElement jsonElement = entry.getValue();
            result.put(entry.getKey(), convertJsonValue(jsonElement));
        }
        return result;
    }

    private String convertJsonValue(final JsonElement jsonElement) {
        if (jsonElement.isJsonPrimitive()) {
            return jsonElement.getAsString();
        } else if (jsonElement.isJsonNull()) {
            return "";
        } else {
            return jsonElement.toString();
        }
    }
}