package org.apache.maven.plugin.invoker;

 /*

  * 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.io.IOException;

 import java.io.Reader;

 import org.apache.maven.model.Model;

 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.codehaus.plexus.util.IOUtil;

 import org.codehaus.plexus.util.ReaderFactory;

 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

 /**

  * Provides utility methods for POM processing.

  * 

  * @author Benjamin Bentmann

  */

 class PomUtils

 {

     /**

      * Loads the (raw) model from the specified POM file.

      * 

      * @param pomFile The path to the POM file to load, must not be <code>null</code>.

      * @return The raw model, never <code>null</code>.

      * @throws MojoExecutionException If the POM file could not be loaded.

      */

     public static Model loadPom( File pomFile )

         throws MojoExecutionException

     {

         Reader reader = null;

         try

         {

             reader = ReaderFactory.newXmlReader( pomFile );

             return new MavenXpp3Reader().read( reader, false );

         }

         catch ( XmlPullParserException e )

         {

             throw new MojoExecutionException( "Failed to parse POM: " + pomFile, e );

         }

         catch ( IOException e )

         {

             throw new MojoExecutionException( "Failed to read POM: " + pomFile, e );

         }

         finally

         {

             IOUtil.close( reader );

         }

     }

 }