| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.brooklyn.core.mgmt.rebind; |
| |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.brooklyn.api.mgmt.rebind.RebindContext; |
| import org.apache.brooklyn.api.mgmt.rebind.RebindSupport; |
| import org.apache.brooklyn.api.mgmt.rebind.mementos.Memento; |
| import org.apache.brooklyn.api.objs.BrooklynObject; |
| import org.apache.brooklyn.api.objs.EntityAdjunct; |
| import org.apache.brooklyn.api.relations.RelationshipType; |
| import org.apache.brooklyn.core.entity.EntityRelations; |
| import org.apache.brooklyn.core.mgmt.rebind.dto.MementosGenerators; |
| import org.apache.brooklyn.core.objs.AbstractBrooklynObject; |
| import org.apache.brooklyn.core.objs.AbstractEntityAdjunct.AdjunctTagSupport; |
| import org.apache.brooklyn.util.text.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public abstract class AbstractBrooklynObjectRebindSupport<T extends Memento> implements RebindSupport<T> { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(AbstractBrooklynObjectRebindSupport.class); |
| |
| private final AbstractBrooklynObject instance; |
| |
| public AbstractBrooklynObjectRebindSupport(AbstractBrooklynObject instance) { |
| this.instance = instance; |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public T getMemento() { |
| T memento = (T) MementosGenerators.newBasicMemento(instance); |
| if (LOG.isTraceEnabled()) LOG.trace("Created memento: {}", memento.toVerboseString()); |
| return memento; |
| } |
| |
| @Override |
| public void reconstruct(RebindContext rebindContext, T memento) { |
| if (LOG.isTraceEnabled()) LOG.trace("Reconstructing: {}", memento.toVerboseString()); |
| |
| instance.setDisplayName(memento.getDisplayName()); |
| //catalogItemId already set when creating the object |
| addConfig(rebindContext, memento); |
| addTags(rebindContext, memento); |
| addRelations(rebindContext, memento); |
| addCustoms(rebindContext, memento); |
| |
| doReconstruct(rebindContext, memento); |
| if (!rebindContext.isReadOnly(instance)) |
| instanceRebind(instance); |
| } |
| |
| protected abstract void addConfig(RebindContext rebindContext, T memento); |
| |
| protected abstract void addCustoms(RebindContext rebindContext, T memento); |
| |
| protected void addTags(RebindContext rebindContext, T memento) { |
| if (instance instanceof EntityAdjunct && Strings.isNonBlank(memento.getUniqueTag())) { |
| ((AdjunctTagSupport)(instance.tags())).setUniqueTag(memento.getUniqueTag()); |
| } |
| for (Object tag : memento.getTags()) { |
| instance.tags().addTag(tag); |
| } |
| } |
| |
| @SuppressWarnings({ "unchecked", "rawtypes" }) |
| protected void addRelations(RebindContext rebindContext, T memento) { |
| for (Map.Entry<Object,Set<String>> rEntry : memento.getRelations().entrySet()) { |
| RelationshipType<? extends BrooklynObject, ? extends BrooklynObject> r; |
| r = (rEntry.getKey() instanceof RelationshipType) |
| ? (RelationshipType<? extends BrooklynObject, ? extends BrooklynObject>) rEntry.getKey() |
| : rEntry.getKey() instanceof String |
| ? EntityRelations.lookup(instance.getManagementContext(), (String) rEntry.getKey()) |
| : null; |
| if (r==null) throw new IllegalStateException("Unsupported relationship -- "+rEntry.getKey() + " -- in "+memento); |
| for (String itemId: rEntry.getValue()) { |
| BrooklynObject item = rebindContext.lookup().lookup(null, itemId); |
| if (item != null) { |
| instance.relations().add((RelationshipType)r, item); |
| } else { |
| LOG.warn("Item not found; discarding item {} relation {} of entity {}({})", |
| new Object[] {itemId, r, memento.getType(), memento.getId()}); |
| rebindContext.getExceptionHandler().onDanglingUntypedItemRef(itemId); |
| } |
| } |
| } |
| } |
| |
| protected void instanceRebind(AbstractBrooklynObject instance) { |
| instance.rebind(); |
| } |
| |
| @Override |
| public void addPolicies(RebindContext rebindContext, T Memento) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void addEnrichers(RebindContext rebindContext, T Memento) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void addFeeds(RebindContext rebindContext, T Memento) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** |
| * For overriding, to give custom reconstruct behaviour. |
| * |
| * @deprecated since 0.7.0; should never need to override the RebindSupport types |
| */ |
| @Deprecated |
| protected void doReconstruct(RebindContext rebindContext, T memento) { |
| // default is no-op |
| } |
| } |