maven-core-3.5.4.jar - Maven Core Module

maven-core-3.5.4.jar is the JAR file for Apache Maven 3.5.4 Core module. Apache Maven is a software project management and comprehension tool.

JAR File Size and Download Location:

File: 2018-06-17 19:33        630101  lib\maven-core-3.5.4.jar
Download: Apache Maven Website

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org/apache/maven/lifecycle/internal/LifecycleStarter.java

package org.apache.maven.lifecycle.internal;

/*
 * 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.List;
import java.util.Map;

import org.apache.maven.execution.ExecutionEvent;
import org.apache.maven.execution.MavenExecutionResult;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.DefaultLifecycles;
import org.apache.maven.lifecycle.MissingProjectException;
import org.apache.maven.lifecycle.NoGoalSpecifiedException;
import org.apache.maven.lifecycle.internal.builder.Builder;
import org.apache.maven.lifecycle.internal.builder.BuilderNotFoundException;
import org.apache.maven.session.scope.internal.SessionScope;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.component.annotations.Requirement;
import org.codehaus.plexus.logging.Logger;

/**
 * Starts the build life cycle
 *
 * @author Jason van Zyl
 * @author Benjamin Bentmann
 * @author Kristian Rosenvold
 */
@Component( role = LifecycleStarter.class )
public class LifecycleStarter
{
    @Requirement
    private ExecutionEventCatapult eventCatapult;

    @Requirement
    private DefaultLifecycles defaultLifeCycles;

    @Requirement
    private Logger logger;

    @Requirement
    private BuildListCalculator buildListCalculator;

    @Requirement
    private LifecycleDebugLogger lifecycleDebugLogger;

    @Requirement
    private LifecycleTaskSegmentCalculator lifecycleTaskSegmentCalculator;

    @Requirement
    private Map<String, Builder> builders;
    
    @Requirement
    private SessionScope sessionScope;

    public void execute( MavenSession session )
    {
        eventCatapult.fire( ExecutionEvent.Type.SessionStarted, session, null );

        ReactorContext reactorContext = null;
        ProjectBuildList projectBuilds = null;
        MavenExecutionResult result = session.getResult();

        try
        {
            if ( buildExecutionRequiresProject( session ) && projectIsNotPresent( session ) )
            {
                throw new MissingProjectException( "The goal you specified requires a project to execute"
                    + " but there is no POM in this directory (" + session.getExecutionRootDirectory() + ")."
                    + " Please verify you invoked Maven from the correct directory." );
            }

            List<TaskSegment> taskSegments = lifecycleTaskSegmentCalculator.calculateTaskSegments( session );
            projectBuilds = buildListCalculator.calculateProjectBuilds( session, taskSegments );

            if ( projectBuilds.isEmpty() )
            {
                throw new NoGoalSpecifiedException( "No goals have been specified for this build."
                    + " You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or"
                    + " <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>."
                    + " Available lifecycle phases are: " + defaultLifeCycles.getLifecyclePhaseList() + "." );
            }

            ProjectIndex projectIndex = new ProjectIndex( session.getProjects() );

            if ( logger.isDebugEnabled() )
            {
                lifecycleDebugLogger.debugReactorPlan( projectBuilds );
            }

            ClassLoader oldContextClassLoader = Thread.currentThread().getContextClassLoader();
            ReactorBuildStatus reactorBuildStatus = new ReactorBuildStatus( session.getProjectDependencyGraph() );
            reactorContext =
                new ReactorContext( result, projectIndex, oldContextClassLoader, reactorBuildStatus,
                                    sessionScope.memento() );

            String builderId = session.getRequest().getBuilderId();
            Builder builder = builders.get( builderId );
            if ( builder == null )
            {
                throw new BuilderNotFoundException( String.format( "The builder requested using id = %s cannot be"
                    + " found", builderId ) );
            }

            int degreeOfConcurrency = session.getRequest().getDegreeOfConcurrency();
            if ( degreeOfConcurrency >= 2 )
            {
                logger.info( "" );
                logger.info( String.format( "Using the %s implementation with a thread count of %d",
                                            builder.getClass().getSimpleName(), degreeOfConcurrency ) );
            }
            builder.build( session, reactorContext, projectBuilds, taskSegments, reactorBuildStatus );

        }
        catch ( Exception e )
        {
            result.addException( e );
        }
        finally
        {
            eventCatapult.fire( ExecutionEvent.Type.SessionEnded, session, null );
        }
    }

    private boolean buildExecutionRequiresProject( MavenSession session )
    {
        return lifecycleTaskSegmentCalculator.requiresProject( session );
    }

    private boolean projectIsNotPresent( MavenSession session )
    {
        return !session.getRequest().isProjectPresent();
    }
}

org/apache/maven/lifecycle/internal/LifecycleStarter.java

 

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