yoonseon | e92748c | 2016-12-13 16:37:51 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.incubator.net.virtual.provider; |
| 18 | |
| 19 | import static com.google.common.base.Preconditions.checkState; |
| 20 | |
| 21 | public abstract class AbstractVirtualProviderService<P extends VirtualProvider> |
| 22 | implements VirtualProviderService { |
| 23 | |
| 24 | private boolean isValid = true; |
| 25 | private final P provider; |
| 26 | |
| 27 | protected AbstractVirtualProviderService(P provider) { |
| 28 | this.provider = provider; |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Invalidates this provider service. |
| 33 | */ |
| 34 | public void invalidate() { |
| 35 | isValid = false; |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * Checks the validity of this provider service. |
| 40 | * |
| 41 | * @throws java.lang.IllegalStateException if the service is no longer valid |
| 42 | */ |
| 43 | public void checkValidity() { |
| 44 | checkState(isValid, "Provider service is no longer valid"); |
| 45 | } |
| 46 | |
| 47 | @Override |
| 48 | public P provider() { |
| 49 | return provider; |
| 50 | } |
| 51 | } |