org.apache.beam.sdk.io.gcp.healthcare

Class HL7v2IO.HL7v2Read.FetchHL7v2Message

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<HL7v2ReadParameter>,HL7v2IO.HL7v2Read.Result>

org.apache.beam.sdk.io.gcp.healthcare.HL7v2IO.HL7v2Read.FetchHL7v2Message

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

HL7v2IO.HL7v2Read

public static class HL7v2IO.HL7v2Read.FetchHL7v2Message
extends org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<HL7v2ReadParameter>,HL7v2IO.HL7v2Read.Result>

PTransform to fetch a message from an Google Cloud Healthcare HL7v2 store based on msgID.

This DoFn consumes a PCollection of HL7v2ReadParameter, and fetches the HL7v2Message object based on the messageId in HL7v2ReadParameter, and will output a PCollectionTuple which contains the output and dead-letter PCollection.

The PCollectionTuple output will contain the following PCollection:

• HL7v2IO.Read.OUT - Contains all PCollection of HL7v2ReadResponse records successfully read from the HL7v2 store.
• HL7v2IO.Read.DEAD_LETTER - Contains all PCollection of HealthcareIOError message IDs which failed to be fetched from the HL7v2 store, with error message and stacktrace.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HL7v2IO.HL7v2Read.FetchHL7v2Message.HL7v2MessageGetFn DoFn for fetching messages from the HL7v2 store with error handling.

Field Summary

Fields inherited from class org.apache.beam.sdk.transforms.PTransform

annotations, displayData, name, resourceHints

Constructor Summary

Constructors

Constructor and Description
FetchHL7v2Message() Instantiates a new Fetch HL7v2 message DoFn.

Method Summary

Modifier and Type	Method and Description
HL7v2IO.HL7v2Read.Result	expand(org.apache.beam.sdk.values.PCollection<HL7v2ReadParameter> input)

Methods inherited from class org.apache.beam.sdk.transforms.PTransform

addAnnotation, compose, compose, getAdditionalInputs, getAnnotations, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setDisplayData, setResourceHints, toString, validate, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

FetchHL7v2Message

public FetchHL7v2Message()

Instantiates a new Fetch HL7v2 message DoFn.

Method Detail

expand

public HL7v2IO.HL7v2Read.Result expand(org.apache.beam.sdk.values.PCollection<HL7v2ReadParameter> input)

Specified by:

expand in class org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<HL7v2ReadParameter>,HL7v2IO.HL7v2Read.Result>