Github user neykov commented on a diff in the pull request:
https://github.com/apache/incubator-brooklyn/pull/78#discussion_r15118769
--- Diff:
software/base/src/main/java/brooklyn/entity/brooklynnode/BrooklynEntityMirrorImpl.java
---
@@ -0,0 +1,175 @@
+/*
+ * 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.entity.brooklynnode;
+
+import java.net.URI;
+import java.util.Map;
+
+import javax.annotation.Nullable;
+
+import org.apache.http.auth.UsernamePasswordCredentials;
+import org.apache.http.client.HttpClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Function;
+import com.google.common.base.Preconditions;
+import com.google.gson.Gson;
+
+import brooklyn.entity.basic.AbstractEntity;
+import brooklyn.entity.basic.Attributes;
+import brooklyn.entity.basic.BrooklynTaskTags;
+import brooklyn.entity.basic.Entities;
+import brooklyn.entity.basic.EntityFunctions;
+import brooklyn.entity.basic.Lifecycle;
+import brooklyn.entity.brooklynnode.BrooklynNode;
+import brooklyn.entity.effector.EffectorBody;
+import brooklyn.entity.effector.Effectors;
+import brooklyn.entity.trait.Startable;
+import brooklyn.event.AttributeSensor;
+import brooklyn.event.basic.Sensors;
+import brooklyn.event.feed.http.HttpFeed;
+import brooklyn.event.feed.http.HttpPollConfig;
+import brooklyn.util.collections.Jsonya;
+import brooklyn.util.collections.MutableMap;
+import brooklyn.util.config.ConfigBag;
+import brooklyn.util.exceptions.Exceptions;
+import brooklyn.util.http.HttpTool;
+import brooklyn.util.http.HttpTool.HttpClientBuilder;
+import brooklyn.util.http.HttpToolResponse;
+import brooklyn.util.net.Urls;
+import brooklyn.util.stream.Streams;
+import brooklyn.util.task.Tasks;
+
+public class BrooklynEntityMirrorImpl extends AbstractEntity implements
BrooklynEntityMirror {
+
+ private static final Logger log =
LoggerFactory.getLogger(BrooklynEntityMirrorImpl.class);
+
+ private HttpFeed mirror;
+
+ @Override
+ public void init() {
+ super.init();
+ connectSensors();
+ // tag this child with the tenant owner name
+ this.addTag(String.format("ibm.mms.tenant.entity:%s",
getConfig(BrooklynNode.MANAGEMENT_USER)));
+
getMutableEntityType().addEffector(Effectors.effector(Startable.STOP).impl(new
StopAndExpungeEffector()).build());
+ }
+
+ protected void connectSensors() {
+ Function<HttpToolResponse, Void> mirrorSensors = new
Function<HttpToolResponse,Void>() {
+ @SuppressWarnings("rawtypes")
+ @Override
+ public Void apply(HttpToolResponse input) {
+ Map sensors = new
Gson().fromJson(input.getContentAsString(), Map.class);
+ for (Object kv: sensors.entrySet())
+ setAttribute(Sensors.newSensor(Object.class,
""+((Map.Entry)kv).getKey()), ((Map.Entry)kv).getValue());
+ setAttribute(MIRROR_STATUS, "normal");
+ return null;
+ }
+ };
+
+ String sensorsUri = Urls.mergePaths(
+ Preconditions.checkNotNull(getConfig(MIRRORED_ENTITY_URL),
"Required config: "+MIRRORED_ENTITY_URL),
+ "sensors/current-state");
+
+ mirror = HttpFeed.builder().entity(this)
+ .baseUri(sensorsUri)
+ .credentialsIfNotNull(getConfig(BrooklynNode.MANAGEMENT_USER),
getConfig(BrooklynNode.MANAGEMENT_PASSWORD))
+ .period(getConfig(POLL_PERIOD))
+ .poll(HttpPollConfig.forMultiple()
+ .onSuccess(mirrorSensors)
+
.onFailureOrException(EntityFunctions.settingSensorsConstantFunction(this,
MutableMap.<AttributeSensor<?>,Object>of(
+ Attributes.SERVICE_STATE, Lifecycle.ON_FIRE,
+ MIRROR_STATUS, "error contacting service"
+ ))) )
+ .build();
+ }
+
+ protected void disconnectSensors() {
+ if (mirror != null) mirror.stop();
+ }
+
+ @Override
+ public void destroy() {
+ disconnectSensors();
+ }
+
+ public static class RemoteEffector<T> extends EffectorBody<T> {
+ public final String remoteEffectorName;
+ public final Function<byte[], T> resultParser;
+
+ /** creates an effector implementation which POSTs to a remote
effector endpoint, optionally converting
+ * the byte[] response (if resultParser is null then null is
returned) */
+ public RemoteEffector(String remoteEffectorName, @Nullable
Function<byte[],T> resultParser) {
+ this.remoteEffectorName = remoteEffectorName;
+ this.resultParser = resultParser;
+ }
+
+ @Override
+ public T call(ConfigBag parameters) {
+ String baseUri =
Preconditions.checkNotNull(entity().getConfig(MIRRORED_ENTITY_URL), "Cannot be
invoked without an entity URL");
+ HttpClientBuilder builder = HttpTool.httpClientBuilder()
+ .trustAll()
+ .laxRedirect(true)
+ .uri(baseUri);
+ if (entity().getConfig(MANAGEMENT_USER)!=null)
+ builder.credentials(new
UsernamePasswordCredentials(entity().getConfig(MANAGEMENT_USER),
entity().getConfig(MANAGEMENT_PASSWORD)));
+ HttpClient client = builder.build();
+
+ byte[] result = submit(client,
URI.create(Urls.mergePaths(baseUri, "effectors/"+remoteEffectorName)),
parameters.getAllConfig());
--- End diff --
Path escape remoteEffectorName?
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