com.soebes.maven.extensions.incremental.IncrementalModuleBuilderImpl Maven / Gradle / Ivy

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package com.soebes.maven.extensions.incremental;

/*
 * 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.LinkedList;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.ExecutionException;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.execution.ProjectDependencyGraph;
import org.apache.maven.lifecycle.internal.LifecycleModuleBuilder;
import org.apache.maven.lifecycle.internal.ReactorContext;
import org.apache.maven.lifecycle.internal.TaskSegment;
import org.apache.maven.project.MavenProject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Karl Heinz Marbaise 
 */
class IncrementalModuleBuilderImpl
{

    private final Logger logger = LoggerFactory.getLogger( getClass() );

    private MavenSession mavenSession;

    private List projects;

    private List taskSegments;

    private ReactorContext reactorContext;

    private final LifecycleModuleBuilder lifecycleModuleBuilder;

    IncrementalModuleBuilderImpl( List selectedProjects, LifecycleModuleBuilder lifecycleModuleBuilder,
                                  MavenSession session, ReactorContext reactorContext, List taskSegments )
    {

        this.lifecycleModuleBuilder =
            Objects.requireNonNull( lifecycleModuleBuilder, "lifecycleModuleBuilder is not allowed to be null." );
        this.mavenSession = Objects.requireNonNull( session, "session is not allowed to be null." );
        this.taskSegments = Objects.requireNonNull( taskSegments, "taskSegements is not allowed to be null" );
        this.reactorContext = Objects.requireNonNull( reactorContext, "reactorContext is not allowed to be null." );

        ProjectDependencyGraph projectDependencyGraph = session.getProjectDependencyGraph();

        List intermediateResult = new LinkedList<>();

        for ( MavenProject selectedProject : selectedProjects )
        {
            intermediateResult.add( selectedProject );
            // Up or downstream ? (-amd)
            intermediateResult.addAll( projectDependencyGraph.getDownstreamProjects( selectedProject, true ) );
            // TODO: Need to think about this? -am ?
            // intermediateResult.addAll(projectDependencyGraph.getUpstreamProjects(selectedProject,
            // true));
        }

        List result = new LinkedList<>();

        for ( MavenProject project : intermediateResult )
        {
            if ( !result.contains( project ) )
            {
                result.add( project );
            }
        }

        this.projects = result;

    }

    public void build()
        throws ExecutionException, InterruptedException
    {
        this.mavenSession.setProjects( this.projects );

        logger.info( "New Calculated Reactor:" );
        for ( MavenProject mavenProject : this.mavenSession.getProjects() )
        {
            logger.info( " {}", mavenProject.getName() );
        }

        for ( TaskSegment taskSegment : this.taskSegments )
        {
            logger.debug( "Segment" );
            List