Examples with ConstantExpressionExecutor io.siddhi.core.executor.ConstantExpressionExecutor used on opensource projects

Example 1 with ConstantExpressionExecutor

use of io.siddhi.core.executor.ConstantExpressionExecutor in project siddhi by wso2.

the class ExpressionBatchWindowProcessor method init.

@Override
protected StateFactory init(MetaStreamEvent metaStreamEvent, AbstractDefinition inputDefinition, ExpressionExecutor[] attributeExpressionExecutors, ConfigReader configReader, StreamEventClonerHolder streamEventClonerHolder, boolean outputExpectsExpiredEvents, boolean findToBeExecuted, SiddhiQueryContext siddhiQueryContext) {
    if (attributeExpressionExecutors[0] instanceof ConstantExpressionExecutor) {
        expressionString = (String) ((ConstantExpressionExecutor) attributeExpressionExecutors[0]).getValue();
        constructExpression(metaStreamEvent, siddhiQueryContext);
    } else {
        for (Attribute attribute : inputDefinition.getAttributeList()) {
            metaStreamEvent.addData(attribute);
        }
        expressionStringExecutor = attributeExpressionExecutors[0];
    }
    if (attributeExpressionExecutors.length > 1) {
        if (attributeExpressionExecutors[1] instanceof ConstantExpressionExecutor) {
            includeTriggeringEvent = (Boolean) ((ConstantExpressionExecutor) attributeExpressionExecutors[1]).getValue();
        } else {
            includeTriggeringEventExecutor = attributeExpressionExecutors[1];
        }
        if (attributeExpressionExecutors.length > 2 && attributeExpressionExecutors[2] instanceof ConstantExpressionExecutor) {
            streamInputEvents = (Boolean) ((ConstantExpressionExecutor) attributeExpressionExecutors[2]).getValue();
        }
    }
    return () -> new WindowState();
}

Example 2 with ConstantExpressionExecutor

use of io.siddhi.core.executor.ConstantExpressionExecutor in project siddhi by wso2.

the class ExternalTimeBatchWindowProcessor method init.

@Override
protected StateFactory init(ExpressionExecutor[] attributeExpressionExecutors, ConfigReader configReader, StreamEventClonerHolder streamEventClonerHolder, boolean outputExpectsExpiredEvents, boolean findToBeExecuted, SiddhiQueryContext siddhiQueryContext) {
    this.outputExpectsExpiredEvents = outputExpectsExpiredEvents;
    this.findToBeExecuted = findToBeExecuted;
    if (attributeExpressionExecutors.length >= 2 && attributeExpressionExecutors.length <= 5) {
        if (!(attributeExpressionExecutors[0] instanceof VariableExpressionExecutor)) {
            throw new SiddhiAppValidationException("ExternalTime window's 1st parameter timestamp should be a" + " variable, but found " + attributeExpressionExecutors[0].getClass());
        }
        if (attributeExpressionExecutors[0].getReturnType() != Attribute.Type.LONG) {
            throw new SiddhiAppValidationException("ExternalTime window's 1st parameter timestamp should be " + "type long, but found " + attributeExpressionExecutors[0].getReturnType());
        }
        timestampExpressionExecutor = (VariableExpressionExecutor) attributeExpressionExecutors[0];
        if (attributeExpressionExecutors[1].getReturnType() == Attribute.Type.INT) {
            timeToKeep = (Integer) ((ConstantExpressionExecutor) attributeExpressionExecutors[1]).getValue();
        } else if (attributeExpressionExecutors[1].getReturnType() == Attribute.Type.LONG) {
            timeToKeep = (Long) ((ConstantExpressionExecutor) attributeExpressionExecutors[1]).getValue();
        } else {
            throw new SiddhiAppValidationException("ExternalTimeBatch window's 2nd parameter windowTime " + "should be either int or long, but found " + attributeExpressionExecutors[1].getReturnType());
        }
        if (attributeExpressionExecutors.length >= 3) {
            isStartTimeEnabled = true;
            if ((attributeExpressionExecutors[2] instanceof ConstantExpressionExecutor)) {
                if (attributeExpressionExecutors[2].getReturnType() == Attribute.Type.INT) {
                    commonStartTime = Integer.parseInt(String.valueOf(((ConstantExpressionExecutor) attributeExpressionExecutors[2]).getValue()));
                } else if (attributeExpressionExecutors[2].getReturnType() == Attribute.Type.LONG) {
                    commonStartTime = Long.parseLong(String.valueOf(((ConstantExpressionExecutor) attributeExpressionExecutors[2]).getValue()));
                } else {
                    throw new SiddhiAppValidationException("ExternalTimeBatch window's 3rd parameter " + "startTime should either be a constant (of type int or long) or an attribute (of type" + " long), but found " + attributeExpressionExecutors[2].getReturnType());
                }
            } else if (attributeExpressionExecutors[2].getReturnType() != Attribute.Type.LONG) {
                throw new SiddhiAppValidationException("ExternalTimeBatch window's 3rd parameter startTime " + "should either be a constant (of type int or long) or an attribute (of type long), but " + "found " + attributeExpressionExecutors[2].getReturnType());
            } else {
                startTimeAsVariable = attributeExpressionExecutors[2];
            }
        }
        if (attributeExpressionExecutors.length >= 4) {
            if (attributeExpressionExecutors[3].getReturnType() == Attribute.Type.INT) {
                schedulerTimeout = Integer.parseInt(String.valueOf(((ConstantExpressionExecutor) attributeExpressionExecutors[3]).getValue()));
            } else if (attributeExpressionExecutors[3].getReturnType() == Attribute.Type.LONG) {
                schedulerTimeout = Long.parseLong(String.valueOf(((ConstantExpressionExecutor) attributeExpressionExecutors[3]).getValue()));
            } else {
                throw new SiddhiAppValidationException("ExternalTimeBatch window's 4th parameter timeout " + "should be either int or long, but found " + attributeExpressionExecutors[3].getReturnType());
            }
        }
        if (attributeExpressionExecutors.length == 5) {
            if (attributeExpressionExecutors[4].getReturnType() == Attribute.Type.BOOL) {
                replaceTimestampWithBatchEndTime = Boolean.parseBoolean(String.valueOf(((ConstantExpressionExecutor) attributeExpressionExecutors[4]).getValue()));
            } else {
                throw new SiddhiAppValidationException("ExternalTimeBatch window's 5th parameter " + "replaceTimestampWithBatchEndTime should be bool, but found " + attributeExpressionExecutors[4].getReturnType());
            }
        }
    } else {
        throw new SiddhiAppValidationException("ExternalTimeBatch window should only have two to five " + "parameters (<long> timestamp, <int|long|time> windowTime, <long> startTime, <int|long|time> " + "timeout, <bool> replaceTimestampWithBatchEndTime), but found " + attributeExpressionExecutors.length + " input attributes");
    }
    return () -> new WindowState(outputExpectsExpiredEvents, schedulerTimeout, commonStartTime);
}

Example 3 with ConstantExpressionExecutor

use of io.siddhi.core.executor.ConstantExpressionExecutor in project siddhi by wso2.

the class ExpressionWindowProcessor method init.

@Override
protected StateFactory init(MetaStreamEvent metaStreamEvent, AbstractDefinition inputDefinition, ExpressionExecutor[] attributeExpressionExecutors, ConfigReader configReader, StreamEventClonerHolder streamEventClonerHolder, boolean outputExpectsExpiredEvents, boolean findToBeExecuted, SiddhiQueryContext siddhiQueryContext) {
    if (attributeExpressionExecutors[0] instanceof ConstantExpressionExecutor) {
        expressionString = (String) ((ConstantExpressionExecutor) attributeExpressionExecutors[0]).getValue();
        constructExpression(metaStreamEvent, siddhiQueryContext);
    } else {
        for (Attribute attribute : inputDefinition.getAttributeList()) {
            metaStreamEvent.addData(attribute);
        }
        expressionStringExecutor = attributeExpressionExecutors[0];
    }
    return () -> new WindowState();
}

Example 4 with ConstantExpressionExecutor

use of io.siddhi.core.executor.ConstantExpressionExecutor in project siddhi by wso2.

the class LogStreamProcessor method init.

/**
 * The init method of the StreamFunction
 *
 * @param metaStreamEvent              the  stream event meta
 * @param inputDefinition              the incoming stream definition
 * @param attributeExpressionExecutors the executors for the function parameters
 * @param configReader                 this hold the {@link LogStreamProcessor} configuration reader.
 * @param streamEventClonerHolder      streamEventCloner Holder
 * @param findToBeExecuted             find will be executed
 * @param siddhiQueryContext           current siddhi query context
 * @return the additional output attributes introduced by the function
 */
@Override
protected StateFactory init(MetaStreamEvent metaStreamEvent, AbstractDefinition inputDefinition, ExpressionExecutor[] attributeExpressionExecutors, ConfigReader configReader, StreamEventClonerHolder streamEventClonerHolder, boolean outputExpectsExpiredEvents, boolean findToBeExecuted, SiddhiQueryContext siddhiQueryContext) {
    int inputExecutorLength = attributeExpressionExecutors.length;
    if (inputExecutorLength == 1) {
        if (attributeExpressionExecutors[0].getReturnType() == Attribute.Type.STRING) {
            logMessageExpressionExecutor = attributeExpressionExecutors[0];
        } else if (attributeExpressionExecutors[0].getReturnType() == Attribute.Type.BOOL) {
            isLogEventExpressionExecutor = attributeExpressionExecutors[0];
        } else {
            throw new SiddhiAppValidationException("Input attribute is expected to be 'isEventLogged (Bool)' " + "or 'logMessage (String)' or 'isEventLogged (Bool), logMessage (String)' or 'priority " + "(String), isEventLogged (Bool), logMessage (String)', but its 1st attribute is " + attributeExpressionExecutors[0].getReturnType());
        }
    } else if (inputExecutorLength == 2) {
        if (attributeExpressionExecutors[0].getReturnType() == Attribute.Type.STRING && attributeExpressionExecutors[1].getReturnType() == Attribute.Type.BOOL) {
            logMessageExpressionExecutor = attributeExpressionExecutors[0];
            isLogEventExpressionExecutor = attributeExpressionExecutors[1];
        } else if (attributeExpressionExecutors[0].getReturnType() == Attribute.Type.STRING && attributeExpressionExecutors[1].getReturnType() == Attribute.Type.STRING) {
            if (attributeExpressionExecutors[0] instanceof ConstantExpressionExecutor) {
                logPriority = LogPriority.valueOf(((String) attributeExpressionExecutors[0].execute(null)).toUpperCase());
            } else {
                logPriorityExpressionExecutor = attributeExpressionExecutors[0];
            }
            logMessageExpressionExecutor = attributeExpressionExecutors[1];
        } else {
            throw new SiddhiAppValidationException("Input attribute is expected to be 'logMessage (String), " + "isEventLogged (Bool)' or 'priority (String), logMessage (String)', but its returning are '" + attributeExpressionExecutors[0].getReturnType() + ", " + attributeExpressionExecutors[1].getReturnType() + "'");
        }
    } else if (inputExecutorLength == 3) {
        if (attributeExpressionExecutors[0].getReturnType() == Attribute.Type.STRING) {
            if (attributeExpressionExecutors[0] instanceof ConstantExpressionExecutor) {
                logPriority = LogPriority.valueOf(((String) attributeExpressionExecutors[0].execute(null)).toUpperCase());
            } else {
                logPriorityExpressionExecutor = attributeExpressionExecutors[0];
            }
        } else {
            throw new SiddhiAppValidationException("Input attribute is expected to be 'priority (String), " + "logMessage (String), isEventLogged (Bool)', but its 1st attribute is returning " + attributeExpressionExecutors[0].getReturnType());
        }
        if (attributeExpressionExecutors[1].getReturnType() == Attribute.Type.STRING) {
            logMessageExpressionExecutor = attributeExpressionExecutors[1];
        } else {
            throw new SiddhiAppValidationException("Input attribute is expected to be 'priority (String), " + "logMessage (String), isEventLogged (Bool)', but its 2nd attribute is returning " + attributeExpressionExecutors[1].getReturnType());
        }
        if (attributeExpressionExecutors[2].getReturnType() == Attribute.Type.BOOL) {
            isLogEventExpressionExecutor = attributeExpressionExecutors[2];
        } else {
            throw new SiddhiAppValidationException("Input attribute is expected to be 'priority (String), " + "logMessage (String), isEventLogged (Bool)', but its 3rd attribute is returning " + attributeExpressionExecutors[2].getReturnType());
        }
    } else if (inputExecutorLength > 3) {
        throw new SiddhiAppValidationException("Input parameters for Log can be logMessage (String), " + "isEventLogged (Bool), but there are " + attributeExpressionExecutors.length + " in the input!");
    }
    logPrefix = siddhiQueryContext.getSiddhiAppContext().getName() + ": ";
    return null;
}

Example 5 with ConstantExpressionExecutor

use of io.siddhi.core.executor.ConstantExpressionExecutor in project siddhi by wso2.

the class EventTestCase method testConditionExpressionExecutorValidation.

@Test(expectedExceptions = OperationNotSupportedException.class)
public void testConditionExpressionExecutorValidation() {
    // StreamDefinition streamDefinition = StreamDefinition.id("cseEventStream").attribute("symbol", Attribute
    // .Type.STRING).attribute("price", Attribute.Type.FLOAT).attribute("volume", Attribute.Type.INT);
    VariableExpressionExecutor volumeVariableExpressionExecutor = new VariableExpressionExecutor(new Attribute("volume", Attribute.Type.INT), 0, 0);
    volumeVariableExpressionExecutor.setPosition(new int[] { 0, SiddhiConstants.UNKNOWN_STATE, SiddhiConstants.OUTPUT_DATA_INDEX, 2 });
    ConstantExpressionExecutor constantExpressionExecutor = new ConstantExpressionExecutor(10f, Attribute.Type.FLOAT);
    ExpressionExecutor compareGreaterThanExecutor = new GreaterThanCompareConditionExpressionExecutorIntInt(new ConstantExpressionExecutor(10, Attribute.Type.INT), volumeVariableExpressionExecutor);
    ExpressionExecutor andExecutor = new AndConditionExpressionExecutor(constantExpressionExecutor, compareGreaterThanExecutor);
}