/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.streampipes.dataformat;

import org.apache.streampipes.model.grounding.TransportFormat;

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

public enum SpDataFormatManager {

  INSTANCE;

  private List<SpDataFormatFactory> availableDataFormats;

  SpDataFormatManager() {
    this.availableDataFormats = new ArrayList<>();
  }

  public void register(SpDataFormatFactory dataFormatDefinition) {
    availableDataFormats.add(dataFormatDefinition);
  }

  public List<SpDataFormatFactory> getAvailableDataFormats() {
    return availableDataFormats;
  }

  public Optional<SpDataFormatDefinition> findDefinition(TransportFormat transportFormat) {
    // TODO why is transportFormat.getRdfType a list?
    return this.availableDataFormats
        .stream()
        .filter
            (adf -> transportFormat
                .getRdfType()
                .stream()
                .anyMatch(tf -> tf.toString().equals(adf
                    .getTransportFormatRdfUri())))
        .map(SpDataFormatFactory::createInstance)
        .findFirst();

  }

}
