UriParametersProviders.java

/*
 * #%L
 * wcm.io
 * %%
 * Copyright (C) 2014 wcm.io
 * %%
 * 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
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package io.wcm.caravan.pipeline.extensions.hal.crawler;

import io.wcm.caravan.hal.resource.HalResource;
import io.wcm.caravan.hal.resource.Link;

import java.util.Collections;
import java.util.Map;

import org.osgi.annotation.versioning.ProviderType;

/**
 * Default URI parameters provider implementations.
 */
@ProviderType
public final class UriParametersProviders {

  private UriParametersProviders() {
    // static methods only
  }

  /**
   * Only returns the HREF of the link as expanded URI.
   * @return URI expander
   */
  public static UriParametersProvider empty() {
    return new UriParametersProvider() {

      @Override
      public Map<String, Object> getParameters(HalResource currentHal, String relation, Link link) {
        return Collections.emptyMap();
      }

      @Override
      public String getId() {
        return "EMPTY";
      }

    };
  }

}