| package org.apache.maven.eventspy.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.ArrayList; |
| import java.util.List; |
| |
| import javax.inject.Inject; |
| import javax.inject.Named; |
| import javax.inject.Singleton; |
| |
| import org.apache.maven.eventspy.EventSpy; |
| import org.apache.maven.execution.ExecutionListener; |
| import org.eclipse.aether.RepositoryListener; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Dispatches callbacks to all registered eventspies. |
| * @since 3.0.2 |
| */ |
| @Named |
| @Singleton |
| public class EventSpyDispatcher |
| { |
| private final Logger logger = LoggerFactory.getLogger( getClass() ); |
| |
| private final List<EventSpy> eventSpies; |
| |
| @Inject |
| public EventSpyDispatcher( List<EventSpy> eventSpies ) |
| { |
| // make copy to get rid of needless overhead for dynamic lookups |
| this.eventSpies = new ArrayList<>( eventSpies ); |
| } |
| |
| public ExecutionListener chainListener( ExecutionListener listener ) |
| { |
| if ( eventSpies.isEmpty() ) |
| { |
| return listener; |
| } |
| return new EventSpyExecutionListener( this, listener ); |
| } |
| |
| public RepositoryListener chainListener( RepositoryListener listener ) |
| { |
| if ( eventSpies.isEmpty() ) |
| { |
| return listener; |
| } |
| return new EventSpyRepositoryListener( this, listener ); |
| } |
| |
| public void init( EventSpy.Context context ) |
| { |
| if ( eventSpies.isEmpty() ) |
| { |
| return; |
| } |
| for ( EventSpy eventSpy : eventSpies ) |
| { |
| try |
| { |
| eventSpy.init( context ); |
| } |
| catch ( Exception | LinkageError e ) |
| { |
| logError( "initialize", e, eventSpy ); |
| } |
| } |
| } |
| |
| public void onEvent( Object event ) |
| { |
| if ( eventSpies.isEmpty() ) |
| { |
| return; |
| } |
| for ( EventSpy eventSpy : eventSpies ) |
| { |
| try |
| { |
| eventSpy.onEvent( event ); |
| } |
| catch ( Exception | LinkageError e ) |
| { |
| logError( "notify", e, eventSpy ); |
| } |
| } |
| } |
| |
| public void close() |
| { |
| if ( eventSpies.isEmpty() ) |
| { |
| return; |
| } |
| for ( EventSpy eventSpy : eventSpies ) |
| { |
| try |
| { |
| eventSpy.close(); |
| } |
| catch ( Exception | LinkageError e ) |
| { |
| logError( "close", e, eventSpy ); |
| } |
| } |
| } |
| |
| private void logError( String action, Throwable e, EventSpy spy ) |
| { |
| String msg = "Failed to " + action + " spy " + spy.getClass().getName() + ": " + e.getMessage(); |
| |
| if ( logger.isDebugEnabled() ) |
| { |
| logger.warn( msg, e ); |
| } |
| else |
| { |
| logger.warn( msg ); |
| } |
| } |
| |
| } |