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ArangoDB Java Driver

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/*
 * Copyright (C) 2012 tamtam180
 *
 * 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.arangodb.util;

import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonPrimitive;

/**
 * @author tamtam180 - kirscheless at gmail.com
 *
 */
public class JsonUtils {
  
  public static int[] toArray(JsonArray array) {
    int len = array.size();
    int[] iarray = new int[len];
    for (int i = 0; i < len; i++) {
      iarray[i] = array.get(i).getAsInt();
    }
    return iarray;
  }
  
  public static double[] toDoubleArray(JsonArray array) {
    int len = array.size();
    double[] darray = new double[len];
    for (int i = 0; i < len; i++) {
      darray[i] = toDouble(array.get(i));
    }
    return darray;
  }
  
  public static double toDouble(JsonElement elem) {
    if (elem != null && !elem.isJsonNull()) {
      JsonPrimitive primitive = elem.getAsJsonPrimitive();
      if (primitive.isNumber()) {
        return primitive.getAsDouble();
      } else if (primitive.isString()) {
        if ("INF".equals(primitive.getAsString())) {
          return Double.POSITIVE_INFINITY;
        } else if ("NaN".equals(primitive.getAsString())) {
          return Double.NaN;
        }
      }
    }
    return Double.NaN;
  }
  
}