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/*
* 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.rest.resources;
import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import org.apache.brooklyn.api.entity.Entity;
import org.apache.brooklyn.api.internal.AbstractBrooklynObjectSpec;
import org.apache.brooklyn.api.objs.BrooklynObjectType;
import org.apache.brooklyn.api.objs.EntityAdjunct;
import org.apache.brooklyn.api.policy.Policy;
import org.apache.brooklyn.api.policy.PolicySpec;
import org.apache.brooklyn.api.sensor.Enricher;
import org.apache.brooklyn.api.sensor.EnricherSpec;
import org.apache.brooklyn.api.sensor.Feed;
import org.apache.brooklyn.api.typereg.RegisteredType;
import org.apache.brooklyn.camp.brooklyn.spi.dsl.DslUtils;
import org.apache.brooklyn.config.ConfigKey;
import org.apache.brooklyn.core.config.ConfigPredicates;
import org.apache.brooklyn.core.entity.EntityInternal;
import org.apache.brooklyn.core.mgmt.BrooklynTaskTags;
import org.apache.brooklyn.core.mgmt.entitlement.Entitlements;
import org.apache.brooklyn.core.typereg.RegisteredTypes;
import org.apache.brooklyn.rest.api.AdjunctApi;
import org.apache.brooklyn.rest.domain.AdjunctDetail;
import org.apache.brooklyn.rest.domain.AdjunctSummary;
import org.apache.brooklyn.rest.domain.ConfigSummary;
import org.apache.brooklyn.rest.domain.Status;
import org.apache.brooklyn.rest.domain.SummaryComparators;
import org.apache.brooklyn.rest.domain.TaskSummary;
import org.apache.brooklyn.rest.filter.HaHotStateRequired;
import org.apache.brooklyn.rest.transform.AdjunctTransformer;
import org.apache.brooklyn.rest.transform.ConfigTransformer;
import org.apache.brooklyn.rest.transform.EntityTransformer;
import org.apache.brooklyn.rest.transform.TaskTransformer;
import org.apache.brooklyn.rest.util.WebResourceUtils;
import org.apache.brooklyn.util.collections.MutableList;
import org.apache.brooklyn.util.core.ClassLoaderUtils;
import org.apache.brooklyn.util.core.ResourceUtils;
import org.apache.brooklyn.util.core.flags.TypeCoercions;
import org.apache.brooklyn.util.exceptions.Exceptions;
import org.apache.brooklyn.util.text.Strings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.base.Predicates;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.io.Files;
import com.google.common.reflect.TypeToken;
@HaHotStateRequired
public class AdjunctResource extends AbstractBrooklynRestResource implements AdjunctApi {
private static final Logger log = LoggerFactory.getLogger(AdjunctResource.class);
private @Context UriInfo ui;
@Override
public List<AdjunctSummary> list(String application, String entityToken, String adjunctType) {
final Entity entity = brooklyn().getEntity(application, entityToken);
Iterable<? extends EntityAdjunct> source = Collections.emptyList();
boolean all = Strings.isBlank(adjunctType);
boolean any = false;
if (all || adjunctType.equalsIgnoreCase(BrooklynObjectType.POLICY.name())) {
any = true;
source = Iterables.concat(source, entity.policies());
}
if (all || adjunctType.equalsIgnoreCase(BrooklynObjectType.ENRICHER.name())) {
any = true;
source = Iterables.concat(source, entity.enrichers());
}
if (all || adjunctType.equalsIgnoreCase(BrooklynObjectType.FEED.name())) {
any = true;
source = Iterables.concat(source, ((EntityInternal)entity).feeds());
}
if (!any) {
throw WebResourceUtils.badRequest("Unknown adjunct type '%s'; use 'policy', 'enricher', or 'feed'", adjunctType);
}
return FluentIterable.from(source)
.transform(new Function<EntityAdjunct, AdjunctSummary>() {
@Override
public AdjunctSummary apply(EntityAdjunct adjunct) {
return AdjunctTransformer.adjunctSummary(entity, adjunct, ui.getBaseUriBuilder(), brooklyn());
}
})
.toSortedList(SummaryComparators.nameComparator());
}
// TODO would like to make 'config' arg optional but jersey complains if we do
@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
public AdjunctDetail addAdjunct(String application, String entityToken, String adjunctTypeName, Map<String, String> config) {
Entity entity = brooklyn().getEntity(application, entityToken);
if (!Entitlements.isEntitled(mgmt().getEntitlementManager(), Entitlements.MODIFY_ENTITY, entity)) {
throw WebResourceUtils.forbidden("User '%s' is not authorized to modify entity '%s'",
Entitlements.getEntitlementContext().user(), entity);
}
RegisteredType rt = brooklyn().getTypeRegistry().get(adjunctTypeName);
AbstractBrooklynObjectSpec<?, ?> spec;
if (rt!=null) {
spec = brooklyn().getTypeRegistry().createSpec(rt, null, null);
} else {
try {
Class<?> type = new ClassLoaderUtils(this, mgmt()).loadClass(adjunctTypeName);
if (Policy.class.isAssignableFrom(type)) {
spec = PolicySpec.create((Class) type);
} else if (Enricher.class.isAssignableFrom(type)) {
spec = EnricherSpec.create((Class) type);
} else if (Feed.class.isAssignableFrom(type)) {
// TODO add FeedSpec ? would be needed even if using the type registry
throw WebResourceUtils.badRequest("Creation of feeds from java type (%s) not supported", adjunctTypeName);
} else {
throw WebResourceUtils.badRequest("Invalid type %s; not a support adjunct type", adjunctTypeName);
}
} catch (ClassNotFoundException e) {
throw WebResourceUtils.badRequest("No adjunct with type %s found", adjunctTypeName);
} catch (ClassCastException e) {
throw WebResourceUtils.badRequest("No adjunct with type %s found", adjunctTypeName);
} catch (Exception e) {
throw Exceptions.propagate(e);
}
}
try {
Optional<Map> configResolved = DslUtils.resolveNonDeferredBrooklynDslValue(config, TypeToken.of(Map.class), mgmt(), spec);
spec.configure(configResolved.or(config));
} catch (Exception e) {
log.debug("Error resolving config (rethrowing) "+config+": "+e, e);
throw Exceptions.propagate(e);
}
EntityAdjunct instance;
if (spec instanceof PolicySpec) {
instance = entity.policies().add((PolicySpec)spec);
} else if (spec instanceof EnricherSpec) {
instance = entity.enrichers().add((EnricherSpec)spec);
} else {
// TODO add FeedSpec
throw WebResourceUtils.badRequest("Unexpected spec type %s", spec);
}
log.debug("REST API added adjunct " + instance + " to " + entity);
return AdjunctTransformer.adjunctDetail(entity, instance, ui.getBaseUriBuilder(), brooklyn());
}
@Override
public AdjunctDetail get(String application, String entityToken, String adjunctId) {
Entity entity = brooklyn().getEntity(application, entityToken);
EntityAdjunct adjunct = brooklyn().getAdjunct(entity, adjunctId);
return AdjunctTransformer.adjunctDetail(entity, adjunct, ui.getBaseUriBuilder(), brooklyn());
}
@Override
public Status getStatus(String application, String entityToken, String adjunctId) {
return AdjunctTransformer.inferStatus( brooklyn().getAdjunct(application, entityToken, adjunctId) );
}
@Override
public Response start(String application, String entityToken, String adjunctId) {
EntityAdjunct adjunct = brooklyn().getAdjunct(application, entityToken, adjunctId);
if (adjunct instanceof Policy) {
((Policy)adjunct).resume();
} else if (adjunct instanceof Feed) {
((Feed)adjunct).resume();
} else {
throw WebResourceUtils.badRequest("%s does not support start/resume", adjunct);
}
return Response.status(Response.Status.NO_CONTENT).build();
}
@Override
public Response stop(String application, String entityToken, String adjunctId) {
EntityAdjunct adjunct = brooklyn().getAdjunct(application, entityToken, adjunctId);
if (adjunct instanceof Policy) {
((Policy)adjunct).suspend();
} else if (adjunct instanceof Feed) {
((Feed)adjunct).suspend();
} else {
throw WebResourceUtils.badRequest("%s does not support suspend", adjunct);
}
return Response.status(Response.Status.NO_CONTENT).build();
}
@Override
public Response destroy(String application, String entityToken, String adjunctId) {
Entity entity = brooklyn().getEntity(application, entityToken);
EntityAdjunct adjunct = brooklyn().getAdjunct(entity, adjunctId);
if (!Entitlements.isEntitled(mgmt().getEntitlementManager(), Entitlements.DELETE_ADJUNCT, adjunct)) {
throw WebResourceUtils.forbidden("User '%s' is not authorized to delete adjuncts '%s'",
Entitlements.getEntitlementContext().user(), adjunct);
}
if (adjunct instanceof Policy) {
((Policy)adjunct).suspend();
entity.policies().remove((Policy) adjunct);
} else if (adjunct instanceof Enricher) {
entity.enrichers().remove((Enricher) adjunct);
} else if (adjunct instanceof Feed) {
((Feed)adjunct).suspend();
((EntityInternal)entity).feeds().remove((Feed) adjunct);
} else {
// shouldn't come here
throw WebResourceUtils.badRequest("Unexpected adjunct type %s", adjunct);
}
return Response.status(Response.Status.NO_CONTENT).build();
}
// ---- config ----
@Override
public List<ConfigSummary> listConfig(
final String application, final String entityToken, final String adjunctToken) {
Entity entity = brooklyn().getEntity(application, entityToken);
EntityAdjunct adjunct = brooklyn().getAdjunct(entity, adjunctToken);
List<ConfigSummary> result = Lists.newArrayList();
for (ConfigKey<?> key : adjunct.config().findKeysDeclared(Predicates.alwaysTrue())) {
result.add(ConfigTransformer.of(key).on(entity, adjunct).includeLinks(ui.getBaseUriBuilder(), false, true).transform());
}
return result;
}
// 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, String adjunctToken) {
return EntityTransformer.getConfigValues(brooklyn(), brooklyn().getAdjunct(application, entityToken, adjunctToken) );
}
@Override
public String getConfig(String application, String entityToken, String adjunctToken, String configKeyName) {
EntityAdjunct adjunct = brooklyn().getAdjunct(application, entityToken, adjunctToken);
Set<ConfigKey<?>> cki = adjunct.config().findKeysDeclared(ConfigPredicates.nameSatisfies(Predicates.equalTo(configKeyName)));
// TODO try deprecated names?
if (cki.isEmpty()) throw WebResourceUtils.notFound("Cannot find config key '%s' in adjunct '%s' of entity '%s'", configKeyName, adjunctToken, entityToken);
return brooklyn().getStringValueForDisplay(adjunct.config().get(cki.iterator().next()));
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public Response setConfig(String application, String entityToken, String adjunctToken, String configKeyName, Object value) {
Entity entity = brooklyn().getEntity(application, entityToken);
if (!Entitlements.isEntitled(mgmt().getEntitlementManager(), Entitlements.MODIFY_ENTITY, entity)) {
throw WebResourceUtils.forbidden("User '%s' is not authorized to modify entity '%s'",
Entitlements.getEntitlementContext().user(), entity);
}
EntityAdjunct adjunct = brooklyn().getAdjunct(entity, adjunctToken);
Set<ConfigKey<?>> cki = adjunct.config().findKeysDeclared(ConfigPredicates.nameSatisfies(Predicates.equalTo(configKeyName)));
// TODO try deprecated names?
if (cki.isEmpty()) throw WebResourceUtils.notFound("Cannot find config key '%s' in adjunct '%s' of entity '%s'", configKeyName, adjunctToken, entityToken);
ConfigKey<?> ck = cki.iterator().next();
adjunct.config().set((ConfigKey) ck, TypeCoercions.coerce(value, ck.getTypeToken()));
return Response.status(Response.Status.OK).build();
}
@Override
public List<TaskSummary> listTasks(String applicationId, String entityId, String adjunctToken, int limit, Boolean recurse) {
Entity entity = brooklyn().getEntity(applicationId, entityId);
EntityAdjunct adjunct = brooklyn().getAdjunct(entity, adjunctToken);
return TaskTransformer.fromTasks(MutableList.copyOf(BrooklynTaskTags.getTasksInAdjunctContext(mgmt().getExecutionManager(), adjunct)),
limit, recurse, entity, ui);
}
@Override
public Response getIcon(String applicationId, String entityId, String adjunctToken) {
Entity entity = brooklyn().getEntity(applicationId, entityId);
EntityAdjunct adjunct = brooklyn().getAdjunct(entity, adjunctToken);
String url = RegisteredTypes.getIconUrl(adjunct);
if (url == null)
return Response.status(javax.ws.rs.core.Response.Status.NO_CONTENT).build();
if (brooklyn().isUrlServerSideAndSafe(url)) {
// classpath URL's we will serve IF they end with a recognised image format;
// paths (ie non-protocol) and
// NB, for security, file URL's are NOT served
MediaType mime = WebResourceUtils.getImageMediaTypeFromExtension(Files.getFileExtension(url));
Object content = ResourceUtils.create(entity).getResourceFromUrl(url);
return Response.ok(content, mime).build();
}
// for anything else we do a redirect (e.g. http / https; perhaps ftp)
return Response.temporaryRedirect(URI.create(url)).build();
}
}