content: /*
   * Copyright 2012-2022 the original author or authors.
   *
   * 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
   *
   *      https://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 io.spring.start.site.support;
  
  import java.util.List;
  import java.util.stream.Collectors;
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  import io.spring.initializr.generator.version.Version;
  import io.spring.initializr.metadata.DefaultMetadataElement;
  import io.spring.initializr.web.support.InitializrMetadataUpdateStrategy;
  import io.spring.initializr.web.support.SaganInitializrMetadataUpdateStrategy;
  
  import org.springframework.web.client.RestTemplate;
  
  /**
   * An {@link InitializrMetadataUpdateStrategy} that performs additional filtering of
   * versions available on spring.io.
   *
   * @author Stephane Nicoll
   */
  public class StartInitializrMetadataUpdateStrategy extends SaganInitializrMetadataUpdateStrategy {
  
  	public StartInitializrMetadataUpdateStrategy(RestTemplate restTemplate, ObjectMapper objectMapper) {
  		super(restTemplate, objectMapper);
  	}
  
  	@Override
  	protected List<DefaultMetadataElement> fetchSpringBootVersions(String url) {
  		List<DefaultMetadataElement> versions = super.fetchSpringBootVersions(url);
  		return (versions != null) ? versions.stream().filter(this::isCompatibleVersion).collect(Collectors.toList())
  				: null;
  	}
  
  	private boolean isCompatibleVersion(DefaultMetadataElement versionMetadata) {
  		Version version = Version.parse(versionMetadata.getId());
  		return (version.getMajor() == 2 && version.getMinor() > 5) || (version.getMajor() >= 3);
  	}
  
  }
  