Examples with TextdbWebResponse edu.uci.ics.textdb.web.response.TextdbWebResponse used on opensource projects

Example 1 with TextdbWebResponse

use of edu.uci.ics.textdb.web.response.TextdbWebResponse in project textdb by TextDB.

the class NewQueryPlanResource method executeQueryPlan.

/**
     * This is the edu.uci.ics.textdb.web.request handler for the execution of a Query Plan.
     * @param logicalPlanJson, the json representation of the logical plan
     * @return - Generic TextdbWebResponse object
     */
@POST
@Path("/execute")
public // TODO: investigate how to use LogicalPlan directly
TextdbWebResponse executeQueryPlan(String logicalPlanJson) {
    try {
        LogicalPlan logicalPlan = new ObjectMapper().readValue(logicalPlanJson, LogicalPlan.class);
        Plan plan = logicalPlan.buildQueryPlan();
        ISink sink = plan.getRoot();
        // send response back to frontend
        if (sink instanceof TupleSink) {
            TupleSink tupleSink = (TupleSink) sink;
            tupleSink.open();
            List<Tuple> results = tupleSink.collectAllTuples();
            tupleSink.close();
            ArrayNode arrayNode = new ObjectMapper().createArrayNode();
            for (Tuple tuple : results) {
                arrayNode.add(tuple.getReadableJson());
            }
            return new TextdbWebResponse(0, new ObjectMapper().writeValueAsString(arrayNode));
        } else {
            // execute the plan and return success message
            Engine.getEngine().evaluate(plan);
            ObjectNode objectNode = new ObjectMapper().createObjectNode();
            objectNode.put("status", "plan sucessfully executed");
            return new TextdbWebResponse(0, new ObjectMapper().writeValueAsString(objectNode));
        }
    } catch (IOException | RuntimeException e) {
        // TODO remove RuntimeException after the exception refactor
        e.printStackTrace();
        throw new TextdbWebException(e.getMessage());
    }
}

Example 2 with TextdbWebResponse

use of edu.uci.ics.textdb.web.response.TextdbWebResponse in project textdb by TextDB.

the class PlanStoreResource method updateQueryPlan.

@PUT
@Path("/{plan_name}")
public TextdbWebResponse updateQueryPlan(@PathParam("plan_name") String planName, String queryPlanBeanJson) {
    try {
        QueryPlanBean queryPlanBean = new ObjectMapper().readValue(queryPlanBeanJson, QueryPlanBean.class);
        // Updating the plan in the plan store
        planStore.updatePlan(planName, queryPlanBean.getDescription(), mapper.writeValueAsString(queryPlanBean.getQueryPlan()));
    } catch (IOException | TextDBException e) {
        throw new TextdbWebException(e.getMessage());
    }
    return new TextdbWebResponse(0, "Success");
}

Example 3 with TextdbWebResponse

use of edu.uci.ics.textdb.web.response.TextdbWebResponse in project textdb by TextDB.

the class PlanStoreResource method addQueryPlan.

@POST
public TextdbWebResponse addQueryPlan(String queryPlanBeanJson) {
    try {
        QueryPlanBean queryPlanBean = new ObjectMapper().readValue(queryPlanBeanJson, QueryPlanBean.class);
        // Adding the query plan to the PlanStore
        planStore.addPlan(queryPlanBean.getName(), queryPlanBean.getDescription(), mapper.writeValueAsString(queryPlanBean.getQueryPlan()));
    } catch (TextDBException e) {
        throw new TextdbWebException(e.getMessage());
    } catch (IOException e) {
        e.printStackTrace();
    }
    return new TextdbWebResponse(0, "Success");
}