use of edu.uci.ics.textdb.api.exception.TextDBException in project textdb by TextDB.
the class ScanBasedSourceOperator method open.
@Override
public void open() throws TextDBException {
if (isOpen) {
return;
}
try {
dataReader.open();
isOpen = true;
} catch (Exception e) {
throw new DataFlowException(e.getMessage(), e);
}
}
use of edu.uci.ics.textdb.api.exception.TextDBException in project textdb by TextDB.
the class AbstractSingleInputOperator method getNextTuple.
@Override
public Tuple getNextTuple() throws TextDBException {
if (cursor == CLOSED) {
throw new DataFlowException(ErrorMessages.OPERATOR_NOT_OPENED);
}
if (resultCursor >= limit + offset - 1) {
return null;
}
try {
Tuple resultTuple = null;
while (true) {
resultTuple = computeNextMatchingTuple();
if (resultTuple == null) {
break;
}
resultCursor++;
if (resultCursor >= offset) {
break;
}
}
return resultTuple;
} catch (Exception e) {
throw new DataFlowException(e.getMessage(), e);
}
}
use of edu.uci.ics.textdb.api.exception.TextDBException 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");
}
use of edu.uci.ics.textdb.api.exception.TextDBException in project textdb by TextDB.
the class PlanStoreResource method getQueryPlan.
@GET
@Path("/{plan_name}")
public QueryPlanBean getQueryPlan(@PathParam("plan_name") String planName) {
try {
Tuple tuple = planStore.getPlan(planName);
if (tuple == null) {
throw new TextdbWebException("Plan with the given name does not exist");
}
QueryPlanBean queryPlanBean = new QueryPlanBean(tuple.getField(PlanStoreConstants.NAME).getValue().toString(), tuple.getField(PlanStoreConstants.DESCRIPTION).getValue().toString(), mapper.readValue(tuple.getField(PlanStoreConstants.LOGICAL_PLAN_JSON).getValue().toString(), LogicalPlan.class));
return queryPlanBean;
} catch (TextDBException e) {
throw new TextdbWebException(e.getMessage());
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
use of edu.uci.ics.textdb.api.exception.TextDBException 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");
}
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