content: /*
   * 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 com.datastax.oss.driver.internal.core.util;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  
  /**
   * A set of driver optional dependencies and a common mechanism to test the presence of such
   * dependencies on the application's classpath.
   *
   * <p>We use the given fully-qualified names of classes to test the presence of the whole dependency
   * on the classpath, including its transitive dependencies if applicable. This assumes that if these
   * classes are present, then the entire library is present and functional, and vice versa.
   *
   * <p>Note: some of the libraries declared here may be shaded; in these cases the shade plugin will
   * replace the package names listed above with names starting with {@code
   * com.datastax.oss.driver.shaded.*}, but the presence check would still work as expected.
   */
  public enum Dependency {
    SNAPPY("org.xerial.snappy.Snappy"),
    LZ4("net.jpountz.lz4.LZ4Compressor"),
    ESRI("com.esri.core.geometry.ogc.OGCGeometry"),
    TINKERPOP(
        // gremlin-core
        "org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal",
        // tinkergraph-gremlin
        "org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerIoRegistryV3d0"),
    REACTIVE_STREAMS("org.reactivestreams.Publisher"),
    JACKSON(
        // jackson-core
        "com.fasterxml.jackson.core.JsonParser",
        // jackson-databind
        "com.fasterxml.jackson.databind.ObjectMapper"),
    DROPWIZARD("com.codahale.metrics.MetricRegistry"),
    ;
  
    @SuppressWarnings("ImmutableEnumChecker")
    private final List<String> clzs;
  
    Dependency(String... classNames) {
      clzs = Collections.unmodifiableList(Arrays.asList(classNames));
    }
  
    public Iterable<String> classes() {
      return this.clzs;
    }
  }
  