diff --git a/maven-core/src/main/java/org/apache/maven/DefaultMaven.java b/maven-core/src/main/java/org/apache/maven/DefaultMaven.java index 7afc2d97fd..abd0b9a3ca 100644 --- a/maven-core/src/main/java/org/apache/maven/DefaultMaven.java +++ b/maven-core/src/main/java/org/apache/maven/DefaultMaven.java @@ -143,6 +143,9 @@ public class DefaultMaven @Requirement private EventSpyDispatcher eventSpyDispatcher; + @Requirement + private SessionScope sessionScope; + public MavenExecutionResult execute( MavenExecutionRequest request ) { MavenExecutionResult result; @@ -267,6 +270,27 @@ public class DefaultMaven return result; } + try + { + session.setProjectMap( getProjectMap( session.getProjects() ) ); + } + catch ( DuplicateProjectException e ) + { + return addExceptionToResult( result, e ); + } + + WorkspaceReader reactorWorkspace; + sessionScope.enter(); + sessionScope.seed( MavenSession.class, session ); + try + { + reactorWorkspace = container.lookup( WorkspaceReader.class ); + } + catch ( ComponentLookupException e ) + { + return addExceptionToResult( result, e ); + } + // // Desired order of precedence for local artifact repositories // @@ -274,17 +298,7 @@ public class DefaultMaven // Workspace // User Local Repository // - ReactorReader reactorRepository = null; - try - { - reactorRepository = new ReactorReader( session, getProjectMap( session.getProjects() ) ); - } - catch ( DuplicateProjectException e ) - { - return addExceptionToResult( result, e ); - } - - repoSession.setWorkspaceReader( ChainedWorkspaceReader.newInstance( reactorRepository, + repoSession.setWorkspaceReader( ChainedWorkspaceReader.newInstance( reactorWorkspace, repoSession.getWorkspaceReader() ) ); repoSession.setReadOnly(); @@ -358,6 +372,8 @@ public class DefaultMaven return addExceptionToResult( result, e ); } + sessionScope.exit(); + return result; } diff --git a/maven-core/src/main/java/org/apache/maven/ReactorReader.java b/maven-core/src/main/java/org/apache/maven/ReactorReader.java index b96bbed7aa..9aa838513a 100644 --- a/maven-core/src/main/java/org/apache/maven/ReactorReader.java +++ b/maven-core/src/main/java/org/apache/maven/ReactorReader.java @@ -29,6 +29,10 @@ import java.util.HashSet; import java.util.List; import java.util.Map; +import javax.inject.Inject; +import javax.inject.Named; +import javax.inject.Singleton; + import org.apache.maven.artifact.ArtifactUtils; import org.apache.maven.execution.MavenSession; import org.apache.maven.project.MavenProject; @@ -42,6 +46,8 @@ import org.eclipse.aether.util.artifact.ArtifactIdUtils; * * @author Jason van Zyl */ +@Named +@SessionScoped class ReactorReader implements WorkspaceReader { @@ -53,12 +59,13 @@ class ReactorReader private WorkspaceRepository repository; - public ReactorReader( MavenSession session, Map reactorProjects ) + @Inject + public ReactorReader( MavenSession session ) { - projectsByGAV = reactorProjects; + projectsByGAV = session.getProjectMap(); - projectsByGA = new HashMap>( reactorProjects.size() * 2 ); - for ( MavenProject project : reactorProjects.values() ) + projectsByGA = new HashMap>( projectsByGAV.size() * 2 ); + for ( MavenProject project : projectsByGAV.values() ) { String key = ArtifactUtils.versionlessKey( project.getGroupId(), project.getArtifactId() ); diff --git a/maven-core/src/main/java/org/apache/maven/SessionModule.java b/maven-core/src/main/java/org/apache/maven/SessionModule.java new file mode 100644 index 0000000000..76c31b6035 --- /dev/null +++ b/maven-core/src/main/java/org/apache/maven/SessionModule.java @@ -0,0 +1,20 @@ +package org.apache.maven; + +import javax.inject.Named; + +import org.apache.maven.execution.MavenSession; + +import com.google.inject.AbstractModule; + +@Named +public class SessionModule extends AbstractModule +{ + @Override + protected void configure() + { + SessionScope scope = new SessionScope(); + bindScope( SessionScoped.class, scope ); + bind( SessionScope.class).toInstance( scope ); + bind( MavenSession.class ).toProvider( SessionScope. seededKeyProvider() ).in( scope ); + } +} diff --git a/maven-core/src/main/java/org/apache/maven/SessionScope.java b/maven-core/src/main/java/org/apache/maven/SessionScope.java new file mode 100644 index 0000000000..9c16fec4ff --- /dev/null +++ b/maven-core/src/main/java/org/apache/maven/SessionScope.java @@ -0,0 +1,136 @@ +package org.apache.maven; + +/* + * 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.Map; + +import com.google.common.collect.Maps; +import com.google.inject.Key; +import com.google.inject.OutOfScopeException; +import com.google.inject.Provider; +import com.google.inject.Scope; +import com.google.inject.util.Providers; + +public class SessionScope + implements Scope +{ + private static final Provider SEEDED_KEY_PROVIDER = new Provider() + { + public Object get() + { + throw new IllegalStateException(); + } + }; + + private static final class ScopeState + { + public final Map, Provider> seeded = Maps.newHashMap(); + + public final Map, Object> provided = Maps.newHashMap(); + } + + private final ThreadLocal> values = new ThreadLocal>(); + + public void enter() + { + LinkedList stack = values.get(); + if ( stack == null ) + { + stack = new LinkedList(); + values.set( stack ); + } + stack.addFirst( new ScopeState() ); + } + + private ScopeState getScopeState() + { + LinkedList stack = values.get(); + if ( stack == null || stack.isEmpty() ) + { + throw new IllegalStateException(); + } + return stack.getFirst(); + } + + public void exit() + { + final LinkedList stack = values.get(); + if ( stack == null || stack.isEmpty() ) + { + throw new IllegalStateException(); + } + stack.removeFirst(); + if ( stack.isEmpty() ) + { + values.remove(); + } + } + + public void seed( Class clazz, Provider value ) + { + getScopeState().seeded.put( Key.get( clazz ), value ); + } + + public void seed( Class clazz, final T value ) + { + getScopeState().seeded.put( Key.get( clazz ), Providers.of( value ) ); + } + + public Provider scope( final Key key, final Provider unscoped ) + { + return new Provider() + { + @SuppressWarnings( "unchecked" ) + public T get() + { + LinkedList stack = values.get(); + if ( stack == null || stack.isEmpty() ) + { + throw new OutOfScopeException( "Cannot access " + key + " outside of a scoping block" ); + } + + ScopeState state = stack.getFirst(); + + Provider seeded = state.seeded.get( key ); + + if ( seeded != null ) + { + return (T) seeded.get(); + } + + T provided = (T) state.provided.get( key ); + if ( provided == null && unscoped != null ) + { + provided = unscoped.get(); + state.provided.put( key, provided ); + } + + return provided; + } + }; + } + + @SuppressWarnings( { "unchecked" } ) + public static Provider seededKeyProvider() + { + return (Provider) SEEDED_KEY_PROVIDER; + } +} diff --git a/maven-core/src/main/java/org/apache/maven/SessionScoped.java b/maven-core/src/main/java/org/apache/maven/SessionScoped.java new file mode 100644 index 0000000000..3a1692ff3e --- /dev/null +++ b/maven-core/src/main/java/org/apache/maven/SessionScoped.java @@ -0,0 +1,41 @@ +package org.apache.maven; + +/* + * 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 static java.lang.annotation.ElementType.TYPE; +import static java.lang.annotation.RetentionPolicy.RUNTIME; + +import java.lang.annotation.Retention; +import java.lang.annotation.Target; + +import com.google.inject.ScopeAnnotation; + +/** + * Indicates that annotated component should be instantiated before session starts and discarded after session execution completes. + * + * @author Jason van Zyl + * @since 3.2.0 + */ +@Target( { TYPE } ) +@Retention( RUNTIME ) +@ScopeAnnotation +public @interface SessionScoped +{ +} diff --git a/maven-core/src/main/java/org/apache/maven/execution/MavenSession.java b/maven-core/src/main/java/org/apache/maven/execution/MavenSession.java index 93a1c7af9e..a59244d1f9 100644 --- a/maven-core/src/main/java/org/apache/maven/execution/MavenSession.java +++ b/maven-core/src/main/java/org/apache/maven/execution/MavenSession.java @@ -393,4 +393,15 @@ public class MavenSession return null; } + private Map projectMap; + + public void setProjectMap( Map projectMap ) + { + this.projectMap = projectMap; + } + + public Map getProjectMap() + { + return projectMap; + } }