001/* 002 * (C) Copyright 2015-2017 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 * Tiry 018 */ 019package org.nuxeo.ecm.core.transientstore; 020 021import java.util.HashMap; 022import java.util.Map; 023 024import org.nuxeo.ecm.core.transientstore.api.TransientStore; 025import org.nuxeo.ecm.core.transientstore.api.TransientStoreConfig; 026import org.nuxeo.ecm.core.transientstore.api.TransientStoreService; 027import org.nuxeo.runtime.model.ComponentContext; 028import org.nuxeo.runtime.model.ComponentInstance; 029import org.nuxeo.runtime.model.DefaultComponent; 030 031/** 032 * Component exposing the {@link TransientStoreService} and managing the unerlying extension point 033 * 034 * @author <a href="mailto:tdelprat@nuxeo.com">Tiry</a> 035 * @since 7.2 036 */ 037public class TransientStorageComponent extends DefaultComponent implements TransientStoreService { 038 039 protected Map<String, TransientStoreConfig> configs = new HashMap<>(); 040 041 protected Map<String, TransientStore> stores = new HashMap<>(); 042 043 public static final String EP_STORE = "store"; 044 045 public static final String DEFAULT_STORE_NAME = "default"; 046 047 @Override 048 public TransientStore getStore(String name) { 049 TransientStore store = stores.get(name); 050 if (store == null) { 051 store = stores.get(DEFAULT_STORE_NAME); 052 if (store == null) { 053 store = registerDefaultStore(); 054 } 055 } 056 return store; 057 } 058 059 protected TransientStore registerDefaultStore() { 060 synchronized (this) { 061 TransientStore defaultStore = stores.get(DEFAULT_STORE_NAME); 062 if (defaultStore == null) { 063 TransientStoreConfig defaultConfig = new TransientStoreConfig(DEFAULT_STORE_NAME); 064 defaultStore = defaultConfig.getStore(); 065 stores.put(defaultConfig.getName(), defaultStore); 066 } 067 return defaultStore; 068 } 069 } 070 071 @Override 072 public void doGC() { 073 stores.values().forEach(TransientStore::doGC); 074 } 075 076 @Override 077 public void registerContribution(Object contribution, String extensionPoint, ComponentInstance contributor) { 078 if (EP_STORE.equals(extensionPoint)) { 079 TransientStoreConfig config = (TransientStoreConfig) contribution; 080 // XXX merge 081 configs.put(config.getName(), config); 082 } 083 } 084 085 @Override 086 public void unregisterContribution(Object contribution, String extensionPoint, ComponentInstance contributor) { 087 if (EP_STORE.equals(extensionPoint)) { 088 TransientStoreConfig config = (TransientStoreConfig) contribution; 089 TransientStore store = stores.get(config.getName()); 090 store.shutdown(); 091 } 092 } 093 094 @Override 095 public void start(ComponentContext context) { 096 for (TransientStoreConfig config : configs.values()) { 097 registerStore(config); 098 } 099 } 100 101 protected TransientStore registerStore(TransientStoreConfig config) { 102 TransientStore store = config.getStore(); 103 stores.put(config.getName(), store); 104 return store; 105 } 106 107 @Override 108 public void deactivate(ComponentContext context) { 109 stores.values().forEach(TransientStore::shutdown); 110 stores.clear(); 111 configs.values().forEach(TransientStoreConfig::flush); 112 super.deactivate(context); 113 } 114 115 public void cleanUpStores() { 116 stores.values().forEach(TransientStore::removeAll); 117 } 118 119}