lizhizhou commented on code in PR #6416: URL: https://github.com/apache/nifi/pull/6416#discussion_r1053102304
########## nifi-nar-bundles/nifi-iotdb-bundle/nifi-iotdb-processors/src/main/java/org/apache/nifi/processors/PutIoTDBRecord.java: ########## @@ -0,0 +1,283 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.nifi.processors; + +import java.io.InputStream; +import java.time.format.DateTimeFormatter; +import java.util.Set; +import java.util.List; +import java.util.HashMap; +import java.util.Map; +import java.util.concurrent.atomic.AtomicBoolean; + +import org.apache.nifi.processor.ProcessorInitializationContext; +import org.apache.nifi.processors.model.IoTDBSchema; +import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType; +import org.apache.iotdb.tsfile.write.record.Tablet; +import org.apache.iotdb.tsfile.write.schema.MeasurementSchema; +import org.apache.nifi.annotation.behavior.InputRequirement; +import org.apache.nifi.annotation.documentation.CapabilityDescription; +import org.apache.nifi.annotation.documentation.Tags; +import org.apache.nifi.components.PropertyDescriptor; +import org.apache.nifi.expression.ExpressionLanguageScope; +import org.apache.nifi.flowfile.FlowFile; +import org.apache.nifi.processor.ProcessContext; +import org.apache.nifi.processor.ProcessSession; +import org.apache.nifi.processor.Relationship; +import org.apache.nifi.processor.exception.ProcessException; +import org.apache.nifi.processor.util.StandardValidators; +import org.apache.nifi.processors.model.ValidationResult; +import org.apache.nifi.serialization.RecordReader; +import org.apache.nifi.serialization.RecordReaderFactory; +import org.apache.nifi.serialization.record.Record; +import java.sql.Timestamp; +import java.sql.Time; +import java.sql.Date; + +@Tags({"iotdb", "insert", "tablet"}) +@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED) +@CapabilityDescription( + "This is a record aware processor that reads the content of the incoming FlowFile as individual records using the " + + "configured 'Record Reader' and writes them to Apache IoTDB using native interface.") +public class PutIoTDBRecord extends AbstractIoTDB { + + static final PropertyDescriptor RECORD_READER_FACTORY = + new PropertyDescriptor.Builder() + .name("Record Reader") + .description( + "Specifies the type of Record Reader controller service to use for parsing the incoming data " + + "and determining the schema") + .identifiesControllerService(RecordReaderFactory.class) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .required(true) + .build(); + + static final PropertyDescriptor SCHEMA = + new PropertyDescriptor.Builder() + .name("Schema Template") + .description( + "The Apache IoTDB Schema Template defined using JSON.\n" + + "The Processor will infer the IoTDB Schema when this property is not configured.\n" + + "Besides, you can set encoding type and compression type by this method.\n" + + "If you want to know more detail about this, you can browse this link: https://iotdb.apache.org/UserGuide/Master/Ecosystem-Integration/NiFi-IoTDB.html";) + .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .required(false) + .build(); + + static final PropertyDescriptor PREFIX = + new PropertyDescriptor.Builder() + .name("Prefix") + .description( + "The Prefix begin with root. that will be add to the tsName in data.\n") + .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .required(true) + .build(); + + static final PropertyDescriptor ALIGNED = + new PropertyDescriptor.Builder() + .name("Aligned") + .description("Whether to use the Apache IoTDB Aligned Timeseries interface") + .allowableValues("true", "false") + .defaultValue("false") + .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .required(false) + .defaultValue("false") + .build(); + + static final PropertyDescriptor MAX_ROW_NUMBER = + new PropertyDescriptor.Builder() + .name("Max Row Number") + .description( + "Specifies the max row number of each Apache IoTDB Tablet") + .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .required(false) + .defaultValue("1024") + .build(); + + private static final String ROOTPREFIX = "root."; + + @Override + protected void init(final ProcessorInitializationContext context) { + super.init(context); + descriptors.add(RECORD_READER_FACTORY); + descriptors.add(SCHEMA); + descriptors.add(PREFIX); + descriptors.add(ALIGNED); + descriptors.add(MAX_ROW_NUMBER); + } + + @Override + protected List<PropertyDescriptor> getSupportedPropertyDescriptors() { + return descriptors; + } + + @Override + public Set<Relationship> getRelationships() { + return relationships; + } + + @Override + public void onTrigger(ProcessContext processContext, ProcessSession processSession) + throws ProcessException { + + FlowFile flowFile = processSession.get(); + + if (flowFile == null) { + return; + } + + String schemaProperty = processContext.getProperty(SCHEMA).evaluateAttributeExpressions(flowFile).getValue(); + String alignedProperty = processContext.getProperty(ALIGNED).evaluateAttributeExpressions(flowFile).getValue(); + String maxRowNumberProperty = processContext.getProperty(MAX_ROW_NUMBER).evaluateAttributeExpressions(flowFile).getValue(); + String prefix = processContext.getProperty(PREFIX).evaluateAttributeExpressions(flowFile).getValue(); + final RecordReaderFactory recordParserFactory = + processContext + .getProperty(RECORD_READER_FACTORY) + .asControllerService(RecordReaderFactory.class); + + if (!prefix.startsWith(ROOTPREFIX) || !prefix.endsWith(".")) { + getLogger().error("The prefix is not begin with root and end with .", flowFile); + processSession.transfer(flowFile, REL_FAILURE); + return; + } + + final boolean aligned = Boolean.valueOf(alignedProperty); + int maxRowNumber = Integer.valueOf(maxRowNumberProperty); + + try (final InputStream inputStream = processSession.read(flowFile); + final RecordReader recordReader = + recordParserFactory.createRecordReader(flowFile, inputStream, getLogger())) { + IoTDBSchema schema = getSchema(schemaProperty, recordReader); + + List<String> fieldNames = schema.getFieldNames(prefix); + + HashMap<String, Tablet> tablets = generateTablets(schema, prefix, maxRowNumber); + DateTimeFormatter format = null; + + Record record; + + while ((record = recordReader.nextRecord()) != null) { + long timestamp = getTimestamp(schema, record); + boolean isFulled = false; + + for (Map.Entry<String, Tablet> entry : tablets.entrySet()) { + String device = entry.getKey(); + Tablet tablet = entry.getValue(); + int rowIndex = tablet.rowSize++; + + tablet.addTimestamp(rowIndex, timestamp); + List<MeasurementSchema> measurements = tablet.getSchemas(); + for (MeasurementSchema measurement : measurements) { + String id = measurement.getMeasurementId(); + TSDataType type = measurement.getType(); + Object value = getValue(record.getValue(id), type); + tablet.addValue(id, rowIndex, value); + } + isFulled = tablet.rowSize == tablet.getMaxRowNumber(); + } + if (isFulled) { + if (aligned) { + session.get().insertAlignedTablets(tablets); + } else { + session.get().insertTablets(tablets); + } + tablets.values().forEach(tablet -> tablet.reset()); + } + } + + AtomicBoolean hasRest = new AtomicBoolean(false); + tablets.forEach( + (device, tablet) -> { + if (hasRest.get() == false && tablet.rowSize != 0) { + hasRest.set(true); + } + }); + if (hasRest.get()) { + if (aligned) { + session.get().insertAlignedTablets(tablets); + } else { + session.get().insertTablets(tablets); + } + } + } catch (Exception e) { + getLogger().error("Processing failed {}", flowFile, e); + processSession.transfer(flowFile, REL_FAILURE); + e.printStackTrace(); Review Comment: Reslove -- This is an automated message from the Apache Git Service. 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