package org.apache.maven.lifecycle.providers;
   
   /*
    * 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.
   */
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.LinkedHashMap;
  
  import javax.inject.Provider;
  
  import org.apache.maven.lifecycle.Lifecycle;
  import org.apache.maven.lifecycle.mapping.LifecyclePhase;
  
  /**
   * Base lifecycle provider.
   */
  public abstract class AbstractLifecycleProvider
      implements Provider<Lifecycle>
  {
      private final Lifecycle lifecycle;
  
      protected AbstractLifecycleProvider( String id, String[] phases, String[] pluginBindings )
      {
          HashMap<String, LifecyclePhase> defaultBindings = null;
          if ( pluginBindings != null )
          {
              final int len = pluginBindings.length;
  
              if ( len < 2 || len % 2 != 0 )
              {
                  throw new IllegalArgumentException( "Plugin bindings must have more than 0, even count of elements" );
              }
  
              defaultBindings = new LinkedHashMap<>( len / 2 );
  
              for ( int i = 0; i < len; i += 2 )
              {
                  defaultBindings.put( pluginBindings[i], new LifecyclePhase( pluginBindings[i + 1] ) );
              }
          }
  
          this.lifecycle = new Lifecycle(
              id,
              Collections.unmodifiableList( Arrays.asList( phases ) ),
              defaultBindings == null ? null : Collections.unmodifiableMap( defaultBindings )
          );
      }
  
      @Override
      public Lifecycle get()
      {
          return lifecycle;
      }
  }