com.torodb.backend.converters.json.BaseArrayValueToJsonConverter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of backend-common Show documentation

There is a newer version: 0.50.3

/*
 * ToroDB
 * Copyright © 2014 8Kdata Technology (www.8kdata.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see .
 */

package com.torodb.backend.converters.json;

import com.torodb.backend.converters.ValueConverter;
import com.torodb.backend.converters.array.ArrayConverter;
import com.torodb.backend.converters.array.ValueToArrayConverterProvider;
import com.torodb.kvdocument.values.KvArray;
import com.torodb.kvdocument.values.KvValue;
import com.torodb.kvdocument.values.heap.ListKvArray;

import java.util.ArrayList;
import java.util.List;

import javax.json.JsonArray;
import javax.json.JsonValue;

/**
 *
 */
public abstract class BaseArrayValueToJsonConverter implements
    ValueConverter {

  private static final long serialVersionUID = 1L;

  private final ValueToArrayConverterProvider valueToArrayConverterProvider;

  public BaseArrayValueToJsonConverter(
      ValueToArrayConverterProvider valueToArrayConverterProvider) {
    this.valueToArrayConverterProvider = valueToArrayConverterProvider;
  }

  @Override
  public Class getJsonClass() {
    return JsonArray.class;
  }

  @Override
  public Class getValueClass() {
    return KvArray.class;
  }

  @SuppressWarnings({"rawtypes", "unchecked"})
  @Override
  public KvArray toValue(JsonArray value) {
    List> list = new ArrayList<>(value.size());
    for (JsonValue child : value) {
      ArrayConverter converter = valueToArrayConverterProvider.fromJsonValue(child);
      list.add(converter.fromJsonValue(child));
    }
    return new ListKvArray(list);
  }
}