The Tesseract Ocr Elastic Cache Lookup component can be configured using the Aspire workflow section. It requires the following entities to be created

Below are the examples of how to configure the component.

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Create Workflow

NOTE: Some options in the following table collapse or are displayed only when selecting other options, such as a checkbox or selects.

Field

Required

Default

Multiple

Notes

Example

description

Yes

-

No

Name of the component application.

"

tesseract-ocr

properties	Yes	-	No	Configuration object
Elastic Cache Lookup"

tesseractPath


Server url	Yes	-	No	Complete URL where

the tesseract application is installed

C:\Tesseract-OCR\tesseract

processTimeout

Yes

600000

the feeds will be sent.	http://localhost:9200/bulk_
Authentication	No	None	Yes	User with the permissions to read from the Elastic index specified.	none, basic, aws
Index	Yes	-	No	The elastic index to crawl. Index name limitations: 1) Lowercase only. 2) Cannot include \\, \/, ?, \", <, >, \|, (space character), ,, # 3) Cannot start with -, _, + 4)	[{"index":"index1"}]
Idle connection timeout	Yes	3600000	No	Maximum time (in milliseconds) to

wait for the process

600000

imageDirectory

keep an idle connection open.	3600000
Max connections	Yes

-

100

No

Directory used to store the temporary files generated during OCR

C:\tempDir

maxSize

Maximum number of connections to be opened.	100
Connections per target	Yes

10mb

10

No

Apply image correction only for those images falls under this size. (i.e. 250kb, 5mb, 1gb)

10mb

Maximum number of connections opened for the same target.	10
Connection timeout	Yes	15000	No	Maximum time (in milliseconds) to wait for the connection.	15000
Socket timeout	Yes	15000	No	Maximum time (in milliseconds) to wait for a socket response.	15000
Throttling period	Yes	5000	No	Time period (in milliseconds) to throttle the connection.	5000
Max connections per period	Yes	500	No	Maximum number of connections used during the throttling period.	500
Maximum retries	Yes	3	No	Maximum number of retries for a failed document.	3
Retry delay	Yes	5000	No	Time (in milliseconds) to wait before a retry.	5000
Max number of entries	No	1000	No	Max total number of entries to keep in the cache.	1000
Max Total Weight (MB)	No	500	No	Specifies the maximum weight of entries the cache must contain.	500
Time (min)	No	5	No	Remove records that have been idle for an amount of time in minutes.	5
Index lookup field	Yes	-	No	Elastic index field name for the lookup,	[{"index":"index1"}]
Source lookup field	Yes	-	No	Specify field name from the incoming AspireObject for the lookup. Field availability will be searched first in 'doc' and then in 'doc.connectorSpecific' section.	myid
Uppercase the source lookup field value	No	true	No	Convert the value of the source field into UPPERCASE value.	FALSE
Lookup output field	Yes	-	No	Output fields from the lookup will be placed under this configured object.	myidOutput
Debug

confidenceThreshold

Yes

80.0

No

Minimum confidence value to accept the ocr output

80.0

outputFormat

Yes

-

No

Image format of the output

png

imageType

Yes

-

No

Image color scale of the output

bilevel

dpi

Yes

300

No

Image dots per inch of the output

300

mimeTypeXPath

Yes

/doc/mimeType

No

Xpath expression to get the document Mime type

/doc/normalizedMimeType

pdfMimeTypes

Yes

-

Yes

Mime type for PDF documents

aspire/pdf

imageMimeTypes

Yes

-

No

Mime type for image documents

aspire/drawing

startPage

Yes

0

No

Page to start processing with OCR. If value is 0 will start from the first page

0

endPage

Yes

20

No

Last page to process with OCR

20

processThreads

Yes

8

No

Max number of threads used by the application

8

processQueue

Yes

30

No

Size of application process queue, should be at least 3 times the process threads

30

backoffTime

Yes

1000

No

Time (in milliseconds) to wait before trying to add a job to the queue when it is full

1000

debug

	No	false	No	Option if you want debug messages enabled.	FALSE
Hit size	No	1000	No	Max mount of hits returned by the cache lookup. If -1 all hits will be returned.	1000

Example

NOTE: The following structure is not ordered by the sections of the component configuration, as found on the Elastic Cache Lookup App Bundle page

Code Block

theme	RDark
title	PUT aspire/_api/credentials/2a5ca234-e328-4d40-bb2a-2df3e550b065

{
      
	"typedescription": "applicationElastic Cache Lookup",
	"_type    "properties": "application",
{
	 	"appNameurl": "Tesseract Ocrhttp://localhost:9200",
	"appType        "authType": "tesseract-ocrnone",
	"config        "index": "com.accenture.aspire:app-ocr-processorindex_name",
		"descriptionidleConnectionTimeout": "tesseract-ocr"3600000,
	"properties        "maxConnections": {
		"tesseractPath": "C:\\Tesseract-OCR\\tesseract",
		"processTimeout": 600000,
		"imageDirectory": "C:\\dev\\tempDir",
		"maxSize": "10mb",
		"confidenceThreshold": 80,
		"outputFormat": "png",
		"imageType": "bilevel",
		"dpi": 300,
		"mimeTypeXPath": "/doc/normalizedMimeType",
		"pdfMimeTypes": "aspire/pdf",
		"imageMimeTypes": "aspire/drawing",
		"startPage": 0,
		"endPage": 20,
		"processThreads": 8,
		"processQueue": 30,
		"backoffTime": 1000,
		"debug": true
	} 100,
        "maxConnectionsPerRoute": 10,
        "connectionTimeout": 15000,
        "socketTimeout": 15000,
        "useThrottling": false,
        "maxRetries": 3,
        "retryWaitTime": 5000,
		"cache": true,
        "eviction": "size",
        "evictionMaxSize": 1000,
		"esIndexLookupField": "indexNaame",
        "sourceLookupField": "myid",
        "sourceLookupFieldToUpperCase": false,
        "lookupOutputField": "myidOutput",
        "debug": false,
        "size": 1000       
	}
}

Update Workflow

Field

Required

Default

Multiple

Notes

Example

description

Yes

-

No

Name of the component application.

"

tesseract-ocr

Elastic Cache Lookup"
properties	Yes	-	No	Configuration object

tesseractPath


Server url	Yes	-	No	Complete URL where

the tesseract application is installed

C:\Tesseract-OCR\tesseract

processTimeout

Yes

600000

properties	Yes	-	No	Configuration object
the feeds will be sent.	http://localhost:9200/bulk_
Authentication	No	None	Yes	User with the permissions to read from the Elastic index specified.	none, basic, aws
Index	Yes	-	No	The elastic index to crawl. Index name limitations: 1) Lowercase only. 2) Cannot include \\, \/, ?, \", <, >, \|, (space character), ,, # 3) Cannot start with -, _, + 4)	[{"index":"index1"}]
Idle connection timeout	Yes	3600000	No	Maximum time (in milliseconds) to

wait for the process

600000

imageDirectory

keep an idle connection open.	3600000
Max connections	Yes

-

100

No

Directory used to store the temporary files generated during OCR

C:\tempDir

maxSize

Maximum number of connections to be opened.	100
Connections per target	Yes

10mb

10

No

Apply image correction only for those images falls under this size. (i.e. 250kb, 5mb, 1gb)

10mb

Maximum number of connections opened for the same target.	10
Connection timeout	Yes	15000	No	Maximum time (in milliseconds) to wait for the connection.	15000
Socket timeout	Yes	15000	No	Maximum time (in milliseconds) to wait for a socket response.	15000
Throttling period	Yes	5000	No	Time period (in milliseconds) to throttle the connection.	5000
Max connections per period	Yes	500	No	Maximum number of connections used during the throttling period.	500
Maximum retries	Yes	3	No	Maximum number of retries for a failed document.	3
Retry delay	Yes	5000	No	Time (in milliseconds) to wait before a retry.	5000
Max number of entries	No	1000	No	Max total number of entries to keep in the cache.	1000
Max Total Weight (MB)	No	500	No	Specifies the maximum weight of entries the cache must contain.	500
Time (min)	No	5	No	Remove records that have been idle for an amount of time in minutes.	5
Index lookup field	Yes	-	No	Elastic index field name for the lookup,	[{"index":"index1"}]
Source lookup field	Yes	-	No	Specify field name from the incoming AspireObject for the lookup. Field availability will be searched first in 'doc' and then in 'doc.connectorSpecific' section.	myid
Uppercase the source lookup field value	No	true	No	Convert the value of the source field into UPPERCASE value.	TRUE
Lookup output field	Yes	-	No	Output fields from the lookup will be placed under this configured object.	myidOutput
Debug

confidenceThreshold

Yes

80.0

No

Minimum confidence value to accept the ocr output

80.0

outputFormat

Yes

-

No

Image format of the output

png

imageType

Yes

-

No

Image color scale of the output

bilevel

dpi

Yes

300

No

Image dots per inch of the output

300

mimeTypeXPath

Yes

/doc/mimeType

No

Xpath expression to get the document Mime type

/doc/normalizedMimeType

pdfMimeTypes

Yes

-

Yes

Mime type for PDF documents

aspire/pdf

imageMimeTypes

Yes

-

No

Mime type for image documents

aspire/drawing

startPage

Yes

0

No

Page to start processing with OCR. If value is 0 will start from the first page

0

endPage

Yes

20

No

Last page to process with OCR

20

processThreads

Yes

8

No

Max number of threads used by the application

8

processQueue

Yes

30

No

Size of application process queue, should be at least 3 times the process threads

30

backoffTime

Yes

1000

No

Time (in milliseconds) to wait before trying to add a job to the queue when it is full

1000

debug

	No	false	No	Option if you want debug messages enabled.	TRUE
Hit size	No	1000	No	Max mount of hits returned by the cache lookup.

FALSE

If -1 all hits will be returned.

1000

Example

Code Block

theme	RDark

{
    	
	"description": "tesseract-ocrElastic Cache Lookup",
	    "properties": {
	 	"tesseractPathurl": "C:\\Tesseract-OCR\\tesseract",
		"processTimeout": 600000,
		"imageDirectory": "C:\\dev\\tempDirhttp://localhost:9200",
        "authType": "none",
        "index": "index_name",
		"maxSizeidleConnectionTimeout": "10mb",
		"confidenceThreshold3600000,
        "maxConnections": 100,
        "maxConnectionsPerRoute": 8010,
		"outputFormat": "png",
		"imageType": "bilevel",
		"dpi": 300        "connectionTimeout": 15000,
        "socketTimeout": 15000,
        "useThrottling": true,
        "maxRetries": 3,
        "retryWaitTime": 5000,
		"mimeTypeXPathcache": "/doc/normalizedMimeType",
		"pdfMimeTypestrue,
        "eviction": "aspire/pdfsize",
		"imageMimeTypes        "evictionMaxSize": "aspire/drawing"1000,
		"startPageesIndexLookupField": 0"indexNaame",
		"endPage        "sourceLookupField": 20"myid",
		"processThreads        "sourceLookupFieldToUpperCase": 8true,
		"processQueue        "lookupOutputField": 30"myidOutput",
		"backoffTime        "debug": 1000true,
		"debug": true        "size": 1000       
	} 
}

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Old Version 12

New Version 13

Key

Create Workflow

Example

Update Workflow

Example

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Versions Compared

Old Version 12

New Version 13

Key

Create Workflow

Example

Update Workflow

Example