String manipulation methods reference

This topic describes workflow elements that can be used for manipulation of string input and passing the manipulated string output to another element in a workflow.

Related topics

Workflow designer elements overview

Adding process input variables to a workflow

Adding a process context variable to a workflow

String manipulation activities overview

Workflow designer provides a set of string manipulation activities grouped together on the Palette, in the String Utils section.

The following screenshot shows the String Utils workflow activities and a simple example of a workflow in which one of these activities is used:

This topic provides a full reference of the available string manipulation elements:

Index Of
Last Index Of
Insert
Json Parser
Length
Matches
Replace
Replace All
Substring
To Upper Case
To Lower Case

Index Of

Returns the first index within a search string in a specified text.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Input text.
	Search Characters	Required	String	String to search for.
	Start Position	Optional	Integer	Start position of the text to search from.
Output	Output	Not applicable	Integer	The first index within the Search Characters string found in the Text string starting from the position specified by the Start Position value. Returns -1 if the specified search characters are not found in the text. Click here to view examples of output... (null, ) = -1 (, null) = -1 ("", "") = 0 ("", ) = -1 (except when = "") ("aabaabaa", "a") = 0 ("aabaabaa", "b") = 2 ("aabaabaa", "ab") = 1 ("aabaabaa", "") = 0

Last Index Of

Returns the last index within a search string in a specified text.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Input text.
	Search Characters	Required	String	String to search for.
	Start Position	Optional	Integer	Start position of the text to search from.
Output	Output	Not applicable	Integer	The last index within the Search Characters string found in the Text string starting from the position specified by the Start Position value. Returns -1 if no match is found. Click here to view examples of output... (null, , ) = -1 (, null, ) = -1 ("aabaabaa", "a", 8) = 7 ("aabaabaa", "b", 8) = 5 ("aabaabaa", "ab", 8) = 4 ("aabaabaa", "b", 9) = 5 ("aabaabaa", "b", -1) = -1 ("aabaabaa", "a", 0) = 0 ("aabaabaa", "b", 0) = -1 ("aabaabaa", "b", 1) = -1 ("aabaabaa", "b", 2) = 2 ("aabaabaa", "ba", 2) = -1 ("aabaabaa", "ba", 2) = 2

Insert

Inserts a string in a specified text.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Input text.
	Offset	Optional	Integer	The distance between the beginning of the text and a string to be inserted. The offset argument must be greater than or equal to 0, and less than or equal to the length of this sequence.
	Insertion	Required	String	Text to insert.
Output	Output	Not applicable	String	The text with inserted string.

Json Parser

Retrieves a string from a specified Json.

Parameter type	Parameter name	Required	Data type	Description
Input	Json	Required	Array	Json string.
	Path For Search	Required	String	A path from the Json string to retrieve. For information about syntax for this field, see JsonPath syntax .
	Limit	Optional	Integer	1 is the default value.
Output	Output	Not applicable	String	Retrieves the specified string from the Json.

For an example workflow, see Using the Json Parser string manipulation method to retrieve information.

Length

Counts the character length of a specified text.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Input string text.
Output	Output	Not applicable	Integer	A count of characters in a specified input string.

Matches

Matches a regular expression against an input string.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Input text.
Input	Regexp	Required	String	Regular expression to search for.
Output	Output	Not applicable	Integer	Returns 1 if true, and 0 if false.

Replace

Replaces all occurrences of a string within another string.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Text to search and replace in. Can be empty.
	Search Text	Required	String	Search string to search for.
	Replacement	Required	String	String to replace it with.
Output	Output	Not applicable	String	The text with replacements.

Replace All

Replaces every substring of a text string that matches the given regular expression with the given replacement.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	The text to modify.
	Regexp	Required	String	Regular expression matching the text to be replaced.
	Replacement	Required	String	Replacement string to be substituted for each match.
Output	Output	Not applicable	String	The text with any processed replacements. Click here to view examples of output... (null, , ) = null ("any", null, ) = "any" ("any", , null) = "any" ("", "", "zzz") = "zzz" ("", ".", "zzz") = "zzz" ("", ".+", "zzz") = "" ("abc", "", "ZZ") = "ZZaZZbZZcZZ" ("<__>\n<__>", "<.>", "z") = "z\nz" ("<__>\n<__>", "(?s)<.*>", "z") = "z" ("ABCabc123", "[a-z]", "_") = "ABC___123" ("ABCabc123", "[^A-Z0-9]+", "_") = "ABC_123" ("ABCabc123", "[^A-Z0-9]+", "") = "ABC123" ("Lorem ipsum dolor sit", "( +)([a-z]+)", "_$2") = "Lorem_ipsum_dolor_sit"

Substring

Retrieves a substring from a specified text.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Text to search in.
	Start Position	Optional	Integer	The position to start from. A negative start position can be used to start characters from the end of the string.
	End Position	Optional	Integer	The position to end at.
Output	Output	Not applicable	String	A string between a specified start position and end position retrieved from the input text. Click here to view examples of output... (null, ) = null ("", ) = "" ("abc", 0) = "abc" ("abc", 2) = "c" ("abc", 4) = "" ("abc", -2) = "bc" ("abc", -4) = "abc"

To Upper Case

Converts input text string to uppercase text.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Input text.
Output	Output	Not applicable	String	Converted text.

To Lower Case

Converts input text string to lowercase text.

Parameter type	Parameter name	Required	Data type	Description
Input	Text	Required	String	Input text.
Output	Output	Not applicable	String	Converted text.

Example: Workflow that uses the Json Parser activity

The following example shows how the Json Parser method is used in a workflow.

The Send HTTP Request activity sends its Json output to the Json Parser activity. The Json Parser activity searches for the Json string that the Json Path defines, and sends no more than three returned Json strings (the limit defined in the Limit parameter) to the Send In App notification activity.

Click here to view JSON of this workflow.

{
  "version": null,
  "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
  "lastChangedBy": "hannah_admin",
  "owner": "hannah_admin",
  "name": "myit-sb:Get Json code with loop",
  "tags": null,
  "description": null,
  "overlayGroupId": "TNGADG1AAP0ICAP0KT5BPJOB1GZHAG",
  "developerId": null,
  "scope": "BUNDLE",
  "guid": "rx-84097e4f-c2c5-4e37-b3a6-1da0fb7bf15c",
  "flowElements": [
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      "resourceType": "com.bmc.arsys.rx.services.process.domain.SequenceFlowDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
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      "sourceNode": "rx-429f378b-20c5-4468-a2d7-b97e11e8222f",
      "targetNode": "rx-5199ea6d-c38b-4bc5-aab0-3a36d574c8c9",
      "condition": ""
    },
    {
      "resourceType": "com.bmc.arsys.rx.services.process.domain.ServiceTaskDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "Send In App Notification",
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      "description": null,
      "overlayGroupId": null,
      "developerId": null,
      "guid": "rx-32afced7-6fe1-4322-95db-f22d6af27537",
      "multiInstanceLoopDefinition": {
        "isSequential": true,
        "loopDataInputRef": "${activityResults.rx-5199ea6d-c38b-4bc5-aab0-3a36d574c8c9.output}",
        "inputDataItem": "Object",
        "completionCondition": null
      },
      "actionTypeName": "myit-sb:sendInAppNotification",
      "inputMap": [
        {
          "assignTarget": "receiver",
          "expression": "\"hannah_admin\""
        },
        {
          "assignTarget": "title",
          "expression": "\"Json code from URL\""
        },
        {
          "assignTarget": "content",
          "expression": "${processContext.Object.description}"
        }
      ],
      "outputMap": [],
      "runAsUser": null,
      "label": "Send In App Notification"
    },
    {
      "resourceType": "com.bmc.arsys.rx.services.process.domain.SequenceFlowDefinition",
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      "targetNode": "rx-9f472454-2350-4865-b1f7-c1cbb40a1459",
      "condition": ""
    },
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      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "Send Http Request",
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      "guid": "rx-429f378b-20c5-4468-a2d7-b97e11e8222f",
      "multiInstanceLoopDefinition": null,
      "actionTypeName": "com.bmc.myservice.connect.rest:sendHttpRequest",
      "inputMap": [
        {
          "assignTarget": "bodyParser",
          "expression": "\"auto\""
        },
        {
          "assignTarget": "connectionId",
          "expression": "\"8c9821dc-6a69-48ec-8751-6a0b986c4e09\""
        },
        {
          "assignTarget": "method",
          "expression": "\"GET\""
        },
        {
          "assignTarget": "uri",
          "expression": "${processContext.URL}"
        }
      ],
      "outputMap": [],
      "runAsUser": null,
      "label": "Send Http Request"
    },
    {
      "resourceType": "com.bmc.arsys.rx.services.process.domain.EndEventDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
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      "owner": "hannah_admin",
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      "label": ""
    },
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      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "Sequence Flow",
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      "guid": "rx-f4e6123a-81f5-441e-8352-c63e2a46b40e",
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      "targetNode": "rx-429f378b-20c5-4468-a2d7-b97e11e8222f",
      "condition": ""
    },
    {
      "resourceType": "com.bmc.arsys.rx.services.process.domain.ServiceTaskDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "Json Parser",
      "tags": null,
      "description": null,
      "overlayGroupId": null,
      "developerId": null,
      "guid": "rx-5199ea6d-c38b-4bc5-aab0-3a36d574c8c9",
      "multiInstanceLoopDefinition": null,
      "actionTypeName": "myit-sb:jsonParser",
      "inputMap": [
        {
          "assignTarget": "json",
          "expression": "${activityResults.rx-429f378b-20c5-4468-a2d7-b97e11e8222f.output}"
        },
        {
          "assignTarget": "pathForSearch",
          "expression": "${processContext.JsonPath}"
        },
        {
          "assignTarget": "limit (default -1(all))",
          "expression": "3"
        }
      ],
      "outputMap": [],
      "runAsUser": null,
      "label": "Json Parser"
    },
    {
      "resourceType": "com.bmc.arsys.rx.services.process.domain.StartEventDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "Start",
      "tags": null,
      "description": null,
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      "guid": "rx-546486a0-b510-48ad-89de-f652a1610f4a",
      "label": ""
    },
    {
      "resourceType": "com.bmc.arsys.rx.services.process.domain.SequenceFlowDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "Sequence Flow",
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      "guid": "rx-f3770aee-ed41-41e7-adfb-eede6823908c",
      "sourceNode": "rx-5199ea6d-c38b-4bc5-aab0-3a36d574c8c9",
      "targetNode": "rx-32afced7-6fe1-4322-95db-f22d6af27537",
      "condition": ""
    }
  ],
  "inputParams": [
    {
      "resourceType": "com.bmc.arsys.rx.standardlib.record.CharacterFieldDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "URL",
      "tags": null,
      "description": "",
      "overlayGroupId": null,
      "developerId": null,
      "id": 536870913,
      "fieldOption": "OPTIONAL",
      "permissions": null,
      "fieldTypeName": "com.bmc.arsys.rx.services.record.domain.DefaultFieldType",
      "isInherited": false,
      "explicitPermissions": null,
      "overlayDescriptor": null,
      "fieldMapping": null,
      "allowPermissionsOverlay": true,
      "allowOtherPropertiesOverlay": true,
      "auditOption": null,
      "maxLength": 0,
      "defaultValue": null,
      "searchDefinition": null,
      "namedListDefinition": null,
      "shouldPersistEncrypted": false,
      "anyUserAllowedToSubmit": false
    },
    {
      "resourceType": "com.bmc.arsys.rx.standardlib.record.CharacterFieldDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "JsonPath",
      "tags": null,
      "description": "",
      "overlayGroupId": null,
      "developerId": null,
      "id": 536870915,
      "fieldOption": "REQUIRED",
      "permissions": null,
      "fieldTypeName": "com.bmc.arsys.rx.services.record.domain.DefaultFieldType",
      "isInherited": false,
      "explicitPermissions": null,
      "overlayDescriptor": null,
      "fieldMapping": null,
      "allowPermissionsOverlay": true,
      "allowOtherPropertiesOverlay": true,
      "auditOption": null,
      "maxLength": 0,
      "defaultValue": null,
      "searchDefinition": null,
      "namedListDefinition": null,
      "shouldPersistEncrypted": false,
      "anyUserAllowedToSubmit": false
    }
  ],
  "outputParams": [],
  "localVariables": [
    {
      "resourceType": "com.bmc.arsys.rx.standardlib.record.CharacterFieldDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "Text",
      "tags": null,
      "description": "",
      "overlayGroupId": null,
      "developerId": null,
      "id": 536870912,
      "fieldOption": "OPTIONAL",
      "permissions": null,
      "fieldTypeName": "com.bmc.arsys.rx.services.record.domain.DefaultFieldType",
      "isInherited": false,
      "explicitPermissions": null,
      "overlayDescriptor": null,
      "fieldMapping": null,
      "allowPermissionsOverlay": true,
      "allowOtherPropertiesOverlay": true,
      "auditOption": null,
      "maxLength": 0,
      "defaultValue": null,
      "searchDefinition": null,
      "namedListDefinition": null,
      "shouldPersistEncrypted": false,
      "anyUserAllowedToSubmit": false
    },
    {
      "resourceType": "com.bmc.arsys.rx.services.process.domain.record.ObjectFieldDefinition",
      "version": null,
      "lastUpdateTime": "2018-07-17T11:59:17.601+0000",
      "lastChangedBy": "hannah_admin",
      "owner": "hannah_admin",
      "name": "Object",
      "tags": null,
      "description": "",
      "overlayGroupId": null,
      "developerId": null,
      "id": 536870914,
      "fieldOption": "OPTIONAL",
      "permissions": null,
      "fieldTypeName": "com.bmc.arsys.rx.services.process.domain.record.ObjectFieldType",
      "isInherited": false,
      "explicitPermissions": null,
      "overlayDescriptor": null,
      "fieldMapping": null,
      "allowPermissionsOverlay": true,
      "allowOtherPropertiesOverlay": true,
      "auditOption": null,
      "anyUserAllowedToSubmit": false
    }
  ],
  "contextKeyParam": "JsonPath",
  "isEnabled": true,
  "permissions": [
    {
      "ownerId": {
        "value": 1000013,
        "type": "GROUP",
        "name": "sbe-public-computed"
      },
      "type": "EXECUTE"
    }
  ],
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  "runAsUser": false,
  "synchronous": true,
  "overlayDescriptor": null,
  "allowOverlay": false,
  "localizableStrings": {}
}

You can save a copy of a service that uses this workflow, export it to your environment, and see how it works.