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.TransientStoreProvider; 027import org.nuxeo.ecm.core.transientstore.api.TransientStoreService; 028import org.nuxeo.runtime.model.ComponentContext; 029import org.nuxeo.runtime.model.ComponentInstance; 030import org.nuxeo.runtime.model.DefaultComponent; 031 032/** 033 * Component exposing the {@link TransientStoreService} and managing the unerlying extension point 034 * 035 * @author <a href="mailto:tdelprat@nuxeo.com">Tiry</a> 036 * @since 7.2 037 */ 038public class TransientStorageComponent extends DefaultComponent implements TransientStoreService { 039 040 protected Map<String, TransientStoreConfig> configs = new HashMap<>(); 041 042 protected Map<String, TransientStoreProvider> stores = new HashMap<>(); 043 044 public static final String EP_STORE = "store"; 045 046 public static final String DEFAULT_STORE_NAME = "default"; 047 048 @Override 049 public TransientStore getStore(String name) { 050 TransientStore store = stores.get(name); 051 if (store == null) { 052 store = stores.get(DEFAULT_STORE_NAME); 053 if (store == null) { 054 store = registerDefaultStore(); 055 } 056 } 057 return store; 058 } 059 060 protected TransientStore registerDefaultStore() { 061 synchronized (this) { 062 TransientStoreProvider defaultStore = stores.get(DEFAULT_STORE_NAME); 063 if (defaultStore == null) { 064 TransientStoreConfig defaultConfig = new TransientStoreConfig(DEFAULT_STORE_NAME); 065 defaultStore = defaultConfig.getStore(); 066 stores.put(defaultConfig.getName(), defaultStore); 067 } 068 return defaultStore; 069 } 070 } 071 072 @Override 073 public void doGC() { 074 stores.values().forEach(TransientStoreProvider::doGC); 075 } 076 077 @Override 078 public void registerContribution(Object contribution, String extensionPoint, ComponentInstance contributor) { 079 if (EP_STORE.equals(extensionPoint)) { 080 TransientStoreConfig config = (TransientStoreConfig) contribution; 081 // XXX merge 082 configs.put(config.getName(), config); 083 } 084 } 085 086 @Override 087 public void unregisterContribution(Object contribution, String extensionPoint, ComponentInstance contributor) { 088 if (EP_STORE.equals(extensionPoint)) { 089 TransientStoreConfig config = (TransientStoreConfig) contribution; 090 TransientStoreProvider store = stores.get(config.getName()); 091 store.shutdown(); 092 } 093 } 094 095 @Override 096 public void start(ComponentContext context) { 097 for (TransientStoreConfig config : configs.values()) { 098 registerStore(config); 099 } 100 } 101 102 protected TransientStore registerStore(TransientStoreConfig config) { 103 TransientStoreProvider store = config.getStore(); 104 stores.put(config.getName(), store); 105 return store; 106 } 107 108 @Override 109 public void deactivate(ComponentContext context) { 110 stores.values().forEach(TransientStoreProvider::shutdown); 111 stores.clear(); 112 configs.values().forEach(TransientStoreConfig::flush); 113 super.deactivate(context); 114 } 115 116 public void cleanUpStores() { 117 stores.values().forEach(TransientStoreProvider::removeAll); 118 } 119 120}