Example usage for com.google.gson JsonElement getAsJsonObject

Introduction

In this page you can find the example usage for com.google.gson JsonElement getAsJsonObject.

Prototype

public JsonObject getAsJsonObject()

Source Link

Document

convenience method to get this element as a JsonObject .

Usage

From source file:co.cask.cdap.proto.codec.IdTypeAdapter.java

License:Apache License

@Override
public Id deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject map = json.getAsJsonObject();
    JsonElement elementTypeJson = map.get("elementType");
    if (elementTypeJson == null) {
        throw new JsonParseException("Expected elementType in Id JSON");
    }/*from w w  w .  j  a  v  a 2s  .com*/

    String elementTypeString = elementTypeJson.getAsString();
    EntityType type = EntityType.valueOf(elementTypeString);
    if (type == null) {
        throw new JsonParseException("Invalid elementType: " + elementTypeString);
    }

    return context.deserialize(json, type.getIdClass());
}

From source file:co.cask.cdap.proto.codec.MapReduceSpecificationCodec.java

License:Apache License

@Override
public MapReduceSpecification deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject jsonObj = json.getAsJsonObject();

    String className = jsonObj.get("className").getAsString();
    String name = jsonObj.get("name").getAsString();
    String description = jsonObj.get("description").getAsString();
    Resources driverResources = deserializeResources(jsonObj, "driver", context);
    Resources mapperResources = deserializeResources(jsonObj, "mapper", context);
    Resources reducerResources = deserializeResources(jsonObj, "reducer", context);
    JsonElement inputDataSetElem = jsonObj.get("inputDataSet");
    String inputDataSet = inputDataSetElem == null ? null : inputDataSetElem.getAsString();
    JsonElement outputDataSetElem = jsonObj.get("outputDataSet");
    String outputDataSet = outputDataSetElem == null ? null : outputDataSetElem.getAsString();

    Set<String> dataSets = deserializeSet(jsonObj.get("datasets"), context, String.class);
    Map<String, String> properties = deserializeMap(jsonObj.get("properties"), context, String.class);
    return new MapReduceSpecification(className, name, description, inputDataSet, outputDataSet, dataSets,
            properties, driverResources, mapperResources, reducerResources);
}

From source file:co.cask.cdap.proto.codec.NamespacedIdCodec.java

License:Apache License

@Override
public Id.NamespacedId deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject jsonObj = json.getAsJsonObject();
    JsonObject id = jsonObj.getAsJsonObject("id");
    String type = jsonObj.get("type").getAsString();
    switch (type) {
    case "application":
        return deserializeApplicationId(id);
    case "program":
        return deserializeProgramId(id);
    case "flow":
        return deserializeFlowId(id);
    case "flowlet":
        return deserializeFlowletId(id);
    case "service":
        return deserializeServiceId(id);
    case "schedule":
        return deserializeSchedule(id);
    case "worker":
        return deserializeWorkerId(id);
    case "workflow":
        return deserializeWorkflowId(id);
    case "datasetinstance":
        return deserializeDatasetInstanceId(id);
    case "stream":
        return deserializeStreamId(id);
    case "view":
        return deserializeViewId(id);
    case "artifact":
        return deserializeArtifactId(id);
    default://w  ww.j a  v a2 s.com
        throw new UnsupportedOperationException(String.format(
                "Unsupported object of type %s found. Deserialization of only %s, %s, %s, %s, %s, %s, %s, "
                        + "%s, %s, %s, %s, %s is supported.",
                type, Id.Application.class.getSimpleName(), Id.Program.class.getSimpleName(),
                Id.Flow.class.getSimpleName(), Id.Flow.Flowlet.class.getSimpleName(),
                Id.Service.class.getSimpleName(), Id.Schedule.class.getSimpleName(),
                Id.Worker.class.getSimpleName(), Id.Workflow.class.getSimpleName(),
                Id.DatasetInstance.class.getSimpleName(), Id.Stream.class.getSimpleName(),
                Id.Stream.View.class.getSimpleName(), Id.Artifact.class.getSimpleName()));
    }
}

From source file:co.cask.cdap.proto.codec.ScheduleSpecificationCodec.java

License:Apache License

@Override
public ScheduleSpecification deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject jsonObj = json.getAsJsonObject();

    JsonElement scheduleTypeJson = jsonObj.get("scheduleType");
    ScheduleType scheduleType;// ww  w.j a  va2  s  . c o  m
    if (scheduleTypeJson == null) {
        // For backwards compatibility with spec persisted with older versions than 2.8, we need these lines
        scheduleType = null;
    } else {
        scheduleType = context.deserialize(jsonObj.get("scheduleType"), ScheduleType.class);
    }

    Schedule schedule = null;
    if (scheduleType == null) {
        JsonObject scheduleObj = jsonObj.get("schedule").getAsJsonObject();
        String name = context.deserialize(scheduleObj.get("name"), String.class);
        String description = context.deserialize(scheduleObj.get("description"), String.class);
        String cronEntry = context.deserialize(scheduleObj.get("cronEntry"), String.class);
        schedule = Schedules.builder(name).setDescription(description).createTimeSchedule(cronEntry);
    } else {
        switch (scheduleType) {
        case TIME:
            schedule = context.deserialize(jsonObj.get("schedule"), TimeSchedule.class);
            break;
        case STREAM:
            schedule = context.deserialize(jsonObj.get("schedule"), StreamSizeSchedule.class);
            break;
        }
    }

    ScheduleProgramInfo program = context.deserialize(jsonObj.get("program"), ScheduleProgramInfo.class);
    Map<String, String> properties = deserializeMap(jsonObj.get("properties"), context, String.class);
    return new ScheduleSpecification(schedule, program, properties);
}

From source file:co.cask.cdap.proto.codec.SparkSpecificationCodec.java

License:Apache License

@Override
public SparkSpecification deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject jsonObj = json.getAsJsonObject();

    String className = jsonObj.get("className").getAsString();
    String name = jsonObj.get("name").getAsString();
    String description = jsonObj.get("description").getAsString();
    String mainClassName = jsonObj.get("mainClassName").getAsString();
    Map<String, String> properties = deserializeMap(jsonObj.get("properties"), context, String.class);

    Resources driverResources = deserializeResources(jsonObj, "driver", context);
    Resources executorResources = deserializeResources(jsonObj, "executor", context);

    return new SparkSpecification(className, name, description, mainClassName, properties, driverResources,
            executorResources);//from w  w  w.j a va 2 s  . co m
}

From source file:co.cask.cdap.proto.codec.WorkflowActionSpecificationCodec.java

License:Apache License

@Override
public WorkflowActionSpecification deserialize(JsonElement json, Type typeOfT,
        JsonDeserializationContext context) throws JsonParseException {
    JsonObject jsonObj = json.getAsJsonObject();

    String className = jsonObj.get("className").getAsString();
    String name = jsonObj.get("name").getAsString();
    String description = jsonObj.get("description").getAsString();
    Set<String> datasets = deserializeSet(jsonObj.get("datasets"), context, String.class);
    Map<String, String> properties = deserializeMap(jsonObj.get("properties"), context, String.class);

    return new DefaultWorkflowActionSpecification(className, name, description, properties, datasets);
}

From source file:co.cask.cdap.proto.codec.WorkflowNodeCodec.java

License:Apache License

@Override
public WorkflowNode deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject jsonObj = json.getAsJsonObject();

    WorkflowNodeType type = context.deserialize(jsonObj.get("nodeType"), WorkflowNodeType.class);

    switch (type) {
    case ACTION:/*from   w  w  w.  j a v  a 2  s .  c o m*/
        return context.deserialize(json, WorkflowActionNode.class);
    case FORK:
        return context.deserialize(json, WorkflowForkNode.class);
    case CONDITION:
        return context.deserialize(json, WorkflowConditionNode.class);
    }
    return null;
}

From source file:co.cask.cdap.proto.codec.WorkflowNodeThrowableCodec.java

License:Apache License

@Override
public WorkflowNodeThrowable deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject jsonObj = json.getAsJsonObject();
    String className = jsonObj.get("className").getAsString();
    String message = jsonObj.get("message").getAsString();
    JsonArray stackTraces = jsonObj.get("stackTraces").getAsJsonArray();
    StackTraceElement[] stackTraceElements = context.deserialize(stackTraces, StackTraceElement[].class);
    JsonElement cause = jsonObj.get("cause");
    WorkflowNodeThrowable dfc = null;/*from  www  .  j  a v a2 s.c o m*/
    if (cause != null) {
        dfc = context.deserialize(cause, WorkflowNodeThrowable.class);
    }
    return new WorkflowNodeThrowable(className, message, stackTraceElements, dfc);
}

From source file:co.cask.cdap.proto.codec.WorkflowSpecificationCodec.java

License:Apache License

@Override
public WorkflowSpecification deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    JsonObject jsonObj = json.getAsJsonObject();

    String className = jsonObj.get("className").getAsString();
    String name = jsonObj.get("name").getAsString();
    String description = jsonObj.get("description").getAsString();
    Map<String, String> properties = deserializeMap(jsonObj.get("properties"), context, String.class);
    List<WorkflowNode> nodes = deserializeList(jsonObj.get("nodes"), context, WorkflowNode.class);
    Map<String, DatasetCreationSpec> localDatasetSpec = deserializeMap(jsonObj.get("localDatasetSpecs"),
            context, DatasetCreationSpec.class);

    return new WorkflowSpecification(className, name, description, properties, nodes, localDatasetSpec);
}

From source file:co.cask.cdap.proto.codec.WorkflowTokenDetailCodec.java

License:Apache License

@Override
public WorkflowTokenDetail deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    Map<String, List<WorkflowTokenDetail.NodeValueDetail>> tokenData = new HashMap<>();
    for (Map.Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
        List<WorkflowTokenDetail.NodeValueDetail> nodeValueDetails = deserializeList(entry.getValue(), context,
                WorkflowTokenDetail.NodeValueDetail.class);
        tokenData.put(entry.getKey(), nodeValueDetails);
    }/*from   w w  w .j  a  v a  2 s  . co  m*/
    return new WorkflowTokenDetail(tokenData);
}