| /** |
| * 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.heron.scheduler.dryrun; |
| |
| import com.fasterxml.jackson.core.JsonProcessingException; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| import org.apache.heron.spi.packing.PackingPlan; |
| import org.apache.heron.spi.packing.Resource; |
| |
| public class JsonFormatterUtils { |
| |
| private final ObjectMapper mapper; |
| |
| public JsonFormatterUtils() { |
| mapper = new ObjectMapper(); |
| } |
| |
| public String renderPackingPlan(String topologyName, String packingClass, |
| PackingPlan packingPlan) throws JsonProcessingException { |
| ObjectNode topLevel = mapper.createObjectNode(); |
| topLevel.put("packingClass", packingClass); |
| topLevel.put("topology", topologyName); |
| |
| ArrayNode containers = mapper.createArrayNode(); |
| |
| for (PackingPlan.ContainerPlan containerPlan : packingPlan.getContainers()) { |
| ObjectNode planNode = mapper.createObjectNode(); |
| planNode.put("taskId", containerPlan.getId()); |
| containers.add(renderContainerPlan(containerPlan)); |
| } |
| |
| topLevel.set("containers", containers); |
| |
| return mapper.writeValueAsString(topLevel); |
| } |
| |
| ObjectNode renderContainerPlan(PackingPlan.ContainerPlan containerPlan) { |
| Resource requiredResources = containerPlan.getRequiredResource(); |
| ObjectNode resources = mapper.createObjectNode(); |
| resources.put("cpu", requiredResources.getCpu()); |
| resources.put("ram", requiredResources.getRam().asBytes()); |
| resources.put("disk", requiredResources.getDisk().asBytes()); |
| |
| ObjectNode containerNode = mapper.createObjectNode(); |
| containerNode.put("id", containerPlan.getId()); |
| containerNode.set("resources", resources); |
| |
| ArrayNode components = mapper.createArrayNode(); |
| for (PackingPlan.InstancePlan instancePlan : containerPlan.getInstances()) { |
| components.add(renderInstancePlan(instancePlan)); |
| } |
| |
| containerNode.set("components", components); |
| |
| return containerNode; |
| } |
| |
| ObjectNode renderInstancePlan(PackingPlan.InstancePlan instancePlan) { |
| Resource resources = instancePlan.getResource(); |
| ObjectNode resourcesNode = mapper.createObjectNode(); |
| resourcesNode.put("cpu", resources.getCpu()); |
| resourcesNode.put("ram", resources.getRam().asBytes()); |
| resourcesNode.put("disk", resources.getDisk().asBytes()); |
| |
| ObjectNode instancePlanNode = mapper.createObjectNode(); |
| instancePlanNode.put("component", instancePlan.getComponentName()); |
| instancePlanNode.put("id", instancePlan.getTaskId()); |
| instancePlanNode.put("index", instancePlan.getComponentIndex()); |
| instancePlanNode.set("resources", resourcesNode); |
| |
| return instancePlanNode; |
| } |
| } |