001/* 002 * (C) Copyright 2006-2017 Nuxeo (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 * 019 * $Id$ 020 */ 021 022package org.nuxeo.runtime.model; 023 024/** 025 * Empty implementation for a component. 026 * 027 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 028 */ 029public class DefaultComponent implements Component, Adaptable { 030 031 /** 032 * @since 5.6 033 */ 034 protected Long lastModified; 035 036 @Override 037 public void activate(ComponentContext context) { 038 setModifiedNow(); 039 } 040 041 @Override 042 public void deactivate(ComponentContext context) { 043 setModifiedNow(); 044 } 045 046 @Override 047 public void registerExtension(Extension extension) { 048 Object[] contribs = extension.getContributions(); 049 if (contribs == null) { 050 return; 051 } 052 for (Object contrib : contribs) { 053 registerContribution(contrib, extension.getExtensionPoint(), extension.getComponent()); 054 } 055 setModifiedNow(); 056 } 057 058 @Override 059 public void unregisterExtension(Extension extension) { 060 Object[] contribs = extension.getContributions(); 061 if (contribs == null) { 062 return; 063 } 064 for (Object contrib : contribs) { 065 unregisterContribution(contrib, extension.getExtensionPoint(), extension.getComponent()); 066 } 067 setModifiedNow(); 068 } 069 070 public void registerContribution(Object contribution, String extensionPoint, ComponentInstance contributor) { 071 } 072 073 public void unregisterContribution(Object contribution, String extensionPoint, ComponentInstance contributor) { 074 } 075 076 @Override 077 public <T> T getAdapter(Class<T> adapter) { 078 return adapter.cast(this); 079 } 080 081 @Override 082 public void start(ComponentContext context) { 083 // delegate for now to applicationStarted 084 applicationStarted(context); 085 } 086 087 @Override 088 public void stop(ComponentContext context) throws InterruptedException { 089 } 090 091 /** 092 * Sets the last modified date to current date timestamp 093 * 094 * @since 5.6 095 */ 096 protected void setModifiedNow() { 097 setLastModified(Long.valueOf(System.currentTimeMillis())); 098 } 099 100 @Override 101 public Long getLastModified() { 102 return lastModified; 103 } 104 105 @Override 106 public void setLastModified(Long lastModified) { 107 this.lastModified = lastModified; 108 } 109}