package org.apache.maven.project.harness;
   
   /*
    * 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.io.File;
  import java.util.Iterator;
  import java.util.Objects;
  
  import org.apache.commons.jxpath.JXPathContext;
  import org.apache.commons.jxpath.JXPathNotFoundException;
  import org.apache.commons.jxpath.ri.JXPathContextReferenceImpl;
  import org.apache.maven.project.MavenProject;
  
  public class PomTestWrapper
  {
  
      private File pomFile;
  
      private JXPathContext context;
  
      private MavenProject mavenProject;
  
      static
      {
          JXPathContextReferenceImpl.addNodePointerFactory( new Xpp3DomPointerFactory() );
      }
  
      public PomTestWrapper( File pomFile, MavenProject mavenProject )
      {
          this.mavenProject = Objects.requireNonNull( mavenProject, "mavenProject cannot be null" );
          this.pomFile = pomFile;
          context = JXPathContext.newContext( mavenProject.getModel() );
      }
  
      public PomTestWrapper( MavenProject mavenProject )
      {
          this.mavenProject = Objects.requireNonNull( mavenProject, "mavenProject cannot be null" );
          context = JXPathContext.newContext( mavenProject.getModel() );
      }
  
      public MavenProject getMavenProject()
      {
          return mavenProject;
      }
  
      public File getBasedir()
      {
          return ( pomFile != null ) ? pomFile.getParentFile() : null;
      }
  
      public void setValueOnModel( String expression, Object value )
      {
          context.setValue( expression, value );
      }
  
      /*
      public int containerCountForUri( String uri )
          throws IOException
      {
          Validate.notEmpty( uri, "uri can neither be null nor empty " );
          ModelDataSource source = new DefaultModelDataSource();
          source.init( domainModel.getModelProperties(), null );
          return source.queryFor( uri ).size();
      }
  	*/
  
  	public Iterator<?> getIteratorForXPathExpression( String expression )
      {
          return context.iterate( expression );
      }
  
      public boolean containsXPathExpression( String expression )
      {
          return context.getValue( expression ) != null;
      }
  
      public Object getValue( String expression )
      {
          try
          {
              return context.getValue( expression );
          }
         catch ( JXPathNotFoundException e )
         {
             return null;
         }
     }
 
     public boolean xPathExpressionEqualsValue( String expression, String value )
     {
         return context.getValue( expression ) != null && context.getValue( expression ).equals( value );
     }
 
 }