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/* 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 org.activiti.engine.impl.json;

import org.activiti.engine.ActivitiException;
import org.activiti.engine.impl.util.json.JSONArray;

import java.io.Reader;
import java.io.Writer;
import java.util.List;

/**

 */
public class JsonListConverter {

  JsonObjectConverter jsonObjectConverter;

  public JsonListConverter(JsonObjectConverter jsonObjectConverter) {
    this.jsonObjectConverter = jsonObjectConverter;
  }

  public void toJson(List list, Writer writer) {
    toJsonArray(list).write(writer);
  }

  public String toJson(List list) {
    return toJsonArray(list).toString();
  }

  public String toJson(List list, int indentFactor) {
    return toJsonArray(list).toString(indentFactor);
  }

  private JSONArray toJsonArray(List objects) {
    JSONArray jsonArray = new JSONArray();
    for (T object : objects) {
      jsonArray.put(jsonObjectConverter.toJsonObject(object));
    }
    return jsonArray;
  }

  public List toObject(Reader reader) {
    throw new ActivitiException("not yet implemented");
  }

  public JsonObjectConverter getJsonObjectConverter() {
    return jsonObjectConverter;
  }

  public void setJsonObjectConverter(JsonObjectConverter jsonObjectConverter) {
    this.jsonObjectConverter = jsonObjectConverter;
  }
}