|  | // Copyright 2014 The Bazel Authors. All rights reserved. | 
|  | // | 
|  | // Licensed 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 com.google.devtools.build.lib.events; | 
|  |  | 
|  | import java.util.Set; | 
|  |  | 
|  | /** | 
|  | * An abstract event handler that keeps track of the event mask. Events matching the mask will be | 
|  | * handled. | 
|  | */ | 
|  | public abstract class AbstractEventHandler implements EventHandler { | 
|  | private final Set<EventKind> mask; | 
|  |  | 
|  | /** | 
|  | * Events matching the mask will be handled. | 
|  | */ | 
|  | public AbstractEventHandler(Set<EventKind> mask) { | 
|  | this.mask = mask; | 
|  | } | 
|  |  | 
|  | public Set<EventKind> getEventMask() { | 
|  | return mask; | 
|  | } | 
|  | } |