org.apache.skywalking.oap.server.storage.plugin.iotdb

Class IoTDBClient

java.lang.Object

org.apache.skywalking.oap.server.storage.plugin.iotdb.IoTDBClient

All Implemented Interfaces:

Client, HealthCheckable

public class IoTDBClient
extends Object
implements Client, HealthCheckable

Field Summary

Fields

Modifier and Type	Field and Description
static String	ALIGN_BY_DEVICE
static String	DOT
static String	TIME
static String	TIME_BUCKET
static String	TIMESTAMP

Constructor Summary

Constructors

Constructor and Description
IoTDBClient(IoTDBStorageConfig config)

Method Summary

Modifier and Type	Method and Description
void	connect()
void	deleteData(String device, long deleteTime) Delete data <= deleteTime in one timeseries
List<? super StorageData>	filterQuery(String modelName, String querySQL, StorageBuilder<? extends StorageData> storageBuilder) Normal filter query for a list of data.
IoTDBStorageConfig	getConfig()
org.apache.iotdb.session.pool.SessionPool	getSessionPool()
String	getStorageGroup()
List<Double>	queryWithAgg(String querySQL) Query with aggregation function: count, sum, avg, last_value, first_value, min_time, max_time, min_value, max_value
void	registerChecker(org.apache.skywalking.oap.server.library.util.HealthChecker healthChecker)
void	shutdown()
void	write(IoTDBInsertRequest request) Write data to IoTDB
void	write(List<IoTDBInsertRequest> requestList) Write a list of data into IoTDB

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DOT

public static final String DOT

See Also:

Constant Field Values

ALIGN_BY_DEVICE

public static final String ALIGN_BY_DEVICE

See Also:

Constant Field Values

TIME_BUCKET

public static final String TIME_BUCKET

See Also:

Constant Field Values

TIME

public static final String TIME

See Also:

Constant Field Values

TIMESTAMP

public static final String TIMESTAMP

See Also:

Constant Field Values

Constructor Detail

IoTDBClient

public IoTDBClient(IoTDBStorageConfig config)

Method Detail

connect

public void connect()
             throws org.apache.iotdb.rpc.IoTDBConnectionException,
                    org.apache.iotdb.rpc.StatementExecutionException

Specified by:

connect in interface Client

Throws:

org.apache.iotdb.rpc.IoTDBConnectionException

org.apache.iotdb.rpc.StatementExecutionException

shutdown

public void shutdown()

Specified by:

shutdown in interface Client

registerChecker

public void registerChecker(org.apache.skywalking.oap.server.library.util.HealthChecker healthChecker)

Specified by:

registerChecker in interface HealthCheckable

getSessionPool

public org.apache.iotdb.session.pool.SessionPool getSessionPool()

getConfig

public IoTDBStorageConfig getConfig()

write

public void write(IoTDBInsertRequest request)
           throws IOException

Write data to IoTDB

Parameters:

request - an IoTDBInsertRequest

Throws:

IOException - IoTDBConnectionException or StatementExecutionException

write

public void write(List<IoTDBInsertRequest> requestList)
           throws IOException

Write a list of data into IoTDB

Parameters:

requestList - a list of IoTDBInsertRequest

Throws:

IOException - IoTDBConnectionException or StatementExecutionException

filterQuery

public List<? super StorageData> filterQuery(String modelName,
                                             String querySQL,
                                             StorageBuilder<? extends StorageData> storageBuilder)
                                      throws IOException

Normal filter query for a list of data. querySQL must contain "align by device"

Parameters:

modelName - model name

querySQL - the SQL for query which must contain "align by device"

storageBuilder - storage builder for transforming storage result map to entity

Returns:

a list of result data

Throws:

IOException - IoTDBConnectionException or StatementExecutionException

queryWithAgg

public List<Double> queryWithAgg(String querySQL)
                          throws IOException

Query with aggregation function: count, sum, avg, last_value, first_value, min_time, max_time, min_value, max_value

Parameters:

querySQL - the SQL for query which should contain aggregation function

Returns:

the result of aggregation function

Throws:

IOException - IoTDBConnectionException or StatementExecutionException

deleteData

public void deleteData(String device,
                       long deleteTime)
                throws IOException

Delete data <= deleteTime in one timeseries

Parameters:

device - device name

deleteTime - deleteTime

Throws:

IOException - IoTDBConnectionException or StatementExecutionException

getStorageGroup

public String getStorageGroup()