Java tutorial
/* * 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 brooklyn.rest.resources; import static com.google.common.collect.Iterables.transform; import java.util.List; import java.util.Map; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import brooklyn.config.ConfigKey; import brooklyn.config.render.RendererHints; import brooklyn.entity.Entity; import brooklyn.entity.basic.Entities; import brooklyn.entity.basic.EntityInternal; import brooklyn.entity.basic.EntityLocal; import brooklyn.event.basic.BasicConfigKey; import brooklyn.management.entitlement.Entitlements; import brooklyn.rest.api.EntityConfigApi; import brooklyn.rest.domain.EntityConfigSummary; import brooklyn.rest.transform.EntityTransformer; import brooklyn.rest.util.WebResourceUtils; import brooklyn.util.flags.TypeCoercions; import brooklyn.util.text.Strings; import com.google.common.base.Function; import com.google.common.base.Predicates; import com.google.common.collect.Lists; import com.google.common.collect.Maps; public class EntityConfigResource extends AbstractBrooklynRestResource implements EntityConfigApi { private static final Logger LOG = LoggerFactory.getLogger(EntityConfigResource.class); @Override public List<EntityConfigSummary> list(final String application, final String entityToken) { final EntityLocal entity = brooklyn().getEntity(application, entityToken); return Lists.newArrayList(transform(entity.getEntityType().getConfigKeys(), new Function<ConfigKey<?>, EntityConfigSummary>() { @Override public EntityConfigSummary apply(ConfigKey<?> config) { return EntityTransformer.entityConfigSummary(entity, config); } })); } // TODO support parameters ?show=value,summary&name=xxx &format={string,json,xml} // (and in sensors class) @Override public Map<String, Object> batchConfigRead(String application, String entityToken, Boolean raw) { // TODO: add test EntityLocal entity = brooklyn().getEntity(application, entityToken); Map<ConfigKey<?>, Object> source = ((EntityInternal) entity).getAllConfig(); Map<String, Object> result = Maps.newLinkedHashMap(); for (Map.Entry<ConfigKey<?>, Object> ek : source.entrySet()) { Object value = ek.getValue(); if (Boolean.FALSE.equals(raw)) { value = RendererHints.applyDisplayValueHint(ek.getKey(), value); } result.put(ek.getKey().getName(), getValueForDisplay(value, true, false)); } return result; } @Override public Object get(String application, String entityToken, String configKeyName, Boolean raw) { return get(true, application, entityToken, configKeyName, raw); } @Override public String getPlain(String application, String entityToken, String configKeyName, Boolean raw) { return Strings.toString(get(false, application, entityToken, configKeyName, raw)); } public Object get(boolean preferJson, String application, String entityToken, String configKeyName, Boolean raw) { EntityLocal entity = brooklyn().getEntity(application, entityToken); ConfigKey<?> ck = findConfig(entity, configKeyName); Object value = entity.getConfigRaw(ck, true).orNull(); if (Boolean.FALSE.equals(raw)) { value = RendererHints.applyDisplayValueHint(ck, value); } return getValueForDisplay(value, preferJson, true); } private ConfigKey<?> findConfig(EntityLocal entity, String configKeyName) { ConfigKey<?> ck = entity.getEntityType().getConfigKey(configKeyName); if (ck == null) ck = new BasicConfigKey<Object>(Object.class, configKeyName); return ck; } @SuppressWarnings({ "rawtypes", "unchecked" }) @Override public void setFromMap(String application, String entityToken, Boolean recurse, Map newValues) { final EntityLocal entity = brooklyn().getEntity(application, entityToken); if (!Entitlements.isEntitled(mgmt().getEntitlementManager(), Entitlements.MODIFY_ENTITY, entity)) { throw WebResourceUtils.unauthorized("User '%s' is not authorized to modify entity '%s'", Entitlements.getEntitlementContext().user(), entity); } if (LOG.isDebugEnabled()) LOG.debug("REST user " + Entitlements.getEntitlementContext() + " setting configs " + newValues); for (Object entry : newValues.entrySet()) { String configName = Strings.toString(((Map.Entry) entry).getKey()); Object newValue = ((Map.Entry) entry).getValue(); ConfigKey ck = findConfig(entity, configName); ((EntityInternal) entity).setConfig(ck, TypeCoercions.coerce(newValue, ck.getTypeToken())); if (Boolean.TRUE.equals(recurse)) { for (Entity e2 : Entities.descendants(entity, Predicates.alwaysTrue(), false)) { ((EntityInternal) e2).setConfig(ck, newValue); } } } } @SuppressWarnings({ "rawtypes", "unchecked" }) @Override public void set(String application, String entityToken, String configName, Boolean recurse, Object newValue) { final EntityLocal entity = brooklyn().getEntity(application, entityToken); if (!Entitlements.isEntitled(mgmt().getEntitlementManager(), Entitlements.MODIFY_ENTITY, entity)) { throw WebResourceUtils.unauthorized("User '%s' is not authorized to modify entity '%s'", Entitlements.getEntitlementContext().user(), entity); } ConfigKey ck = findConfig(entity, configName); LOG.debug("REST setting config " + configName + " on " + entity + " to " + newValue); ((EntityInternal) entity).setConfig(ck, TypeCoercions.coerce(newValue, ck.getTypeToken())); if (Boolean.TRUE.equals(recurse)) { for (Entity e2 : Entities.descendants(entity, Predicates.alwaysTrue(), false)) { ((EntityInternal) e2).setConfig(ck, newValue); } } } }