| /* |
| * 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. |
| */ |
| package org.apache.maven.api; |
| |
| import java.util.Optional; |
| |
| import org.apache.maven.api.annotations.Experimental; |
| import org.apache.maven.api.annotations.Nonnull; |
| |
| /** |
| * Event sent by maven during various phases of the build process. |
| * Such events can be listened to using {@link Listener}s objects |
| * registered in the {@link Session}. |
| * |
| * @since 4.0.0 |
| */ |
| @Experimental |
| public interface Event { |
| |
| /** |
| * Gets the type of the event. |
| * |
| * @return the type of the event, never {@code null} |
| */ |
| @Nonnull |
| EventType getType(); |
| |
| /** |
| * Gets the session from which this event originates. |
| * |
| * @return the current session, never {@code null} |
| */ |
| @Nonnull |
| Session getSession(); |
| |
| /** |
| * Gets the current project (if any). |
| * |
| * @return the current project or {@code empty()} if not applicable |
| */ |
| @Nonnull |
| Optional<Project> getProject(); |
| |
| /** |
| * Gets the current mojo execution (if any). |
| * |
| * @return the current mojo execution or {@code empty()} if not applicable |
| */ |
| @Nonnull |
| Optional<MojoExecution> getMojoExecution(); |
| |
| /** |
| * Gets the exception that caused the event (if any). |
| * |
| * @return the exception or {@code empty()} if none |
| */ |
| Optional<Exception> getException(); |
| } |