/*
 * Copyright 2018 Confluent Inc.
 *
 * Licensed under the Confluent Community License (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.confluent.io/confluent-community-license
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 */

package io.confluent.ksql.function.udf.url;

import io.confluent.ksql.function.udf.Udf;
import io.confluent.ksql.function.udf.UdfDescription;
import io.confluent.ksql.function.udf.UdfParameter;
import java.net.URI;

@UdfDescription(
        name = UrlExtractFragmentKudf.NAME,
        description = "Extracts the fragment of an application/x-www-form-urlencoded String input")
public class UrlExtractFragmentKudf {

  static final String NAME = "url_extract_fragment";

  @Udf(description = "Extracts the fragment of an application/x-www-form-urlencoded String input")
  public String extractFragment(
      @UdfParameter(value = "input", description = "a valid URL to extract a fragment from")
      final String input) {
    return UrlParser.extract(input, URI::getFragment);
  }
}
