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Pattern 3

2025-12-02 12:45:22.544 | DEBUG    | cwl_loader:load_cwl_from_location:228 - Loading CWL document from ../cwl-workflow/pattern-3.cwl...

2025-12-02 12:45:22.545 | DEBUG    | cwl_loader:_load_cwl_from_stream:231 - Reading stream from ../cwl-workflow/pattern-3.cwl...

2025-12-02 12:45:22.567 | DEBUG    | cwl_loader:load_cwl_from_stream:203 - CWL data of type <class 'ruamel.yaml.comments.CommentedMap'> successfully loaded from stream

2025-12-02 12:45:22.568 | DEBUG    | cwl_loader:load_cwl_from_yaml:130 - Updating the model from version 'v1.0' to version 'v1.2'...

2025-12-02 12:45:22.568 | DEBUG    | cwl_loader:load_cwl_from_yaml:141 - Raw CWL document successfully updated to v1.2!

2025-12-02 12:45:22.569 | DEBUG    | cwl_loader:load_cwl_from_yaml:145 - Parsing the raw CWL document to the CWL Utils DOM...

2025-12-02 12:45:22.649 | DEBUG    | cwl_loader:load_cwl_from_yaml:158 - Raw CWL document successfully parsed to the CWL Utils DOM!

2025-12-02 12:45:22.649 | DEBUG    | cwl_loader:load_cwl_from_yaml:160 - Dereferencing the steps[].run...

2025-12-02 12:45:22.650 | DEBUG    | cwl_loader:_on_process:78 - Checking if ../cwl-workflow/pattern-3.cwl#clt must be externally imported...

2025-12-02 12:45:22.650 | DEBUG    | cwl_loader:_on_process:82 - run_url: ../cwl-workflow/pattern-3.cwl - uri: ../cwl-workflow/pattern-3.cwl

2025-12-02 12:45:22.651 | DEBUG    | cwl_loader:load_cwl_from_yaml:167 - steps[].run successfully dereferenced! Dereferencing the FQNs...

2025-12-02 12:45:22.651 | DEBUG    | cwl_loader:load_cwl_from_yaml:171 - CWL document successfully dereferenced! Now verifying steps[].run integrity...

2025-12-02 12:45:22.651 | DEBUG    | cwl_loader:load_cwl_from_yaml:175 - All steps[].run link are resolvable!

2025-12-02 12:45:22.652 | DEBUG    | cwl_loader:load_cwl_from_yaml:178 - Sorting Process instances by dependencies....

2025-12-02 12:45:22.654 | DEBUG    | cwl_loader:load_cwl_from_yaml:180 - Sorting process is over.

2025-12-02 12:45:22.655 | DEBUG    | cwl_loader:_load_cwl_from_stream:240 - Stream from ../cwl-workflow/pattern-3.cwl successfully load!

Application Package Pattern 3¶

The CWL includes:

scatter on an input parameter of type Directory[]
one output parameter of type Directory

This scenario typically takes as input a stack of acquisitions, applies an aggregation algorithm and produces a result

Implementation: detect water bodies taking as input a list of Landsat-8/9 acquisitions producing a STAC Catalog with n STAC Items

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Inputs¶

Id	Type	Label	Doc
`aoi`	`string`	area of interest	area of interest as a bounding box
`epsg`	`string`	EPSG code	EPSG code
`bands`	`string[]`	bands used for the NDWI	bands used for the NDWI
`items`	`Directory[]`	Landsat-8/9 acquisition reference	Landsat-8/9 acquisition reference

Steps¶

Id	Runs	Label	Doc
`step`	`#clt`	None	None

Outputs¶

Id	Type	Label	Doc
`water_bodies`	`Directory[]`	Water bodies detected	Water bodies detected based on the NDWI and otsu threshold

Data flow management¶

2025-12-02 12:45:23.314 | DEBUG    | cwl_loader:load_cwl_from_location:228 - Loading CWL document from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-in.cwl...

2025-12-02 12:45:23.348 | DEBUG    | cwl_loader:_load_cwl_from_stream:231 - Reading stream from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-in.cwl...

2025-12-02 12:45:23.354 | DEBUG    | cwl_loader:load_cwl_from_stream:203 - CWL data of type <class 'ruamel.yaml.comments.CommentedMap'> successfully loaded from stream

2025-12-02 12:45:23.354 | DEBUG    | cwl_loader:load_cwl_from_yaml:130 - Updating the model from version 'v1.0' to version 'v1.2'...

2025-12-02 12:45:23.355 | DEBUG    | cwl_loader:load_cwl_from_yaml:141 - Raw CWL document successfully updated to v1.2!

2025-12-02 12:45:23.355 | DEBUG    | cwl_loader:load_cwl_from_yaml:145 - Parsing the raw CWL document to the CWL Utils DOM...

2025-12-02 12:45:23.519 | DEBUG    | cwl_loader:load_cwl_from_yaml:158 - Raw CWL document successfully parsed to the CWL Utils DOM!

2025-12-02 12:45:23.519 | DEBUG    | cwl_loader:load_cwl_from_yaml:160 - Dereferencing the steps[].run...

2025-12-02 12:45:23.520 | DEBUG    | cwl_loader:load_cwl_from_yaml:167 - steps[].run successfully dereferenced! Dereferencing the FQNs...

2025-12-02 12:45:23.521 | DEBUG    | cwl_loader:load_cwl_from_yaml:171 - CWL document successfully dereferenced! Now verifying steps[].run integrity...

2025-12-02 12:45:23.521 | DEBUG    | cwl_loader:load_cwl_from_yaml:175 - All steps[].run link are resolvable!

2025-12-02 12:45:23.521 | DEBUG    | cwl_loader:load_cwl_from_yaml:178 - Sorting Process instances by dependencies....

2025-12-02 12:45:23.522 | DEBUG    | cwl_loader:load_cwl_from_yaml:180 - Sorting process is over.

2025-12-02 12:45:23.522 | DEBUG    | cwl_loader:_load_cwl_from_stream:240 - Stream from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-in.cwl successfully load!

2025-12-02 12:45:23.523 | DEBUG    | cwl_loader:load_cwl_from_location:228 - Loading CWL document from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-in-file.cwl...

2025-12-02 12:45:23.556 | DEBUG    | cwl_loader:_load_cwl_from_stream:231 - Reading stream from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-in-file.cwl...

2025-12-02 12:45:23.561 | DEBUG    | cwl_loader:load_cwl_from_stream:203 - CWL data of type <class 'ruamel.yaml.comments.CommentedMap'> successfully loaded from stream

2025-12-02 12:45:23.562 | DEBUG    | cwl_loader:load_cwl_from_yaml:130 - Updating the model from version 'v1.0' to version 'v1.2'...

2025-12-02 12:45:23.563 | DEBUG    | cwl_loader:load_cwl_from_yaml:141 - Raw CWL document successfully updated to v1.2!

2025-12-02 12:45:23.563 | DEBUG    | cwl_loader:load_cwl_from_yaml:145 - Parsing the raw CWL document to the CWL Utils DOM...

2025-12-02 12:45:23.722 | DEBUG    | cwl_loader:load_cwl_from_yaml:158 - Raw CWL document successfully parsed to the CWL Utils DOM!

2025-12-02 12:45:23.723 | DEBUG    | cwl_loader:load_cwl_from_yaml:160 - Dereferencing the steps[].run...

2025-12-02 12:45:23.723 | DEBUG    | cwl_loader:load_cwl_from_yaml:167 - steps[].run successfully dereferenced! Dereferencing the FQNs...

2025-12-02 12:45:23.724 | DEBUG    | cwl_loader:load_cwl_from_yaml:171 - CWL document successfully dereferenced! Now verifying steps[].run integrity...

2025-12-02 12:45:23.724 | DEBUG    | cwl_loader:load_cwl_from_yaml:175 - All steps[].run link are resolvable!

2025-12-02 12:45:23.724 | DEBUG    | cwl_loader:load_cwl_from_yaml:178 - Sorting Process instances by dependencies....

2025-12-02 12:45:23.725 | DEBUG    | cwl_loader:load_cwl_from_yaml:180 - Sorting process is over.

2025-12-02 12:45:23.725 | DEBUG    | cwl_loader:_load_cwl_from_stream:240 - Stream from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-in-file.cwl successfully load!

2025-12-02 12:45:23.726 | DEBUG    | cwl_loader:load_cwl_from_location:228 - Loading CWL document from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-out.cwl...

2025-12-02 12:45:23.758 | DEBUG    | cwl_loader:_load_cwl_from_stream:231 - Reading stream from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-out.cwl...

2025-12-02 12:45:23.767 | DEBUG    | cwl_loader:load_cwl_from_stream:203 - CWL data of type <class 'ruamel.yaml.comments.CommentedMap'> successfully loaded from stream

2025-12-02 12:45:23.768 | DEBUG    | cwl_loader:load_cwl_from_yaml:130 - Updating the model from version 'v1.0' to version 'v1.2'...

2025-12-02 12:45:23.768 | DEBUG    | cwl_loader:load_cwl_from_yaml:141 - Raw CWL document successfully updated to v1.2!

2025-12-02 12:45:23.769 | DEBUG    | cwl_loader:load_cwl_from_yaml:145 - Parsing the raw CWL document to the CWL Utils DOM...

2025-12-02 12:45:23.943 | DEBUG    | cwl_loader:load_cwl_from_yaml:158 - Raw CWL document successfully parsed to the CWL Utils DOM!

2025-12-02 12:45:23.943 | DEBUG    | cwl_loader:load_cwl_from_yaml:160 - Dereferencing the steps[].run...

2025-12-02 12:45:23.944 | DEBUG    | cwl_loader:load_cwl_from_yaml:167 - steps[].run successfully dereferenced! Dereferencing the FQNs...

2025-12-02 12:45:23.944 | DEBUG    | cwl_loader:load_cwl_from_yaml:171 - CWL document successfully dereferenced! Now verifying steps[].run integrity...

2025-12-02 12:45:23.945 | DEBUG    | cwl_loader:load_cwl_from_yaml:175 - All steps[].run link are resolvable!

2025-12-02 12:45:23.945 | DEBUG    | cwl_loader:load_cwl_from_yaml:178 - Sorting Process instances by dependencies....

2025-12-02 12:45:23.946 | DEBUG    | cwl_loader:load_cwl_from_yaml:180 - Sorting process is over.

2025-12-02 12:45:23.946 | DEBUG    | cwl_loader:_load_cwl_from_stream:240 - Stream from https://raw.githubusercontent.com/eoap/application-package-patterns/refs/heads/develop/templates/stage-out.cwl successfully load!

2025-12-02 12:45:23.947 | INFO     | eoap_cwlwrap.types:_validate_stage_in:281 - Validating stage-in 'my-asthonishing-stage-in-directory'...

2025-12-02 12:45:23.947 | INFO     | eoap_cwlwrap.types:_validate_stage_in:303 - stage-in 'my-asthonishing-stage-in-directory' is valid

2025-12-02 12:45:23.947 | INFO     | eoap_cwlwrap.types:_validate_stage_in:281 - Validating stage-in 'my-asthonishing-stage-in-file'...

2025-12-02 12:45:23.948 | INFO     | eoap_cwlwrap.types:_validate_stage_in:303 - stage-in 'my-asthonishing-stage-in-file' is valid

2025-12-02 12:45:23.948 | INFO     | eoap_cwlwrap.types:validate_stage_out:339 - Validating stage-out 'my-super-stage-out'...

2025-12-02 12:45:23.949 | INFO     | eoap_cwlwrap.types:validate_stage_out:361 - stage-out 'my-super-stage-out' is valid

2025-12-02 12:45:23.949 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:101 - Building the CWL Orchestrator Workflow...

2025-12-02 12:45:23.950 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:130 - Analyzing pattern-3 inputs...

2025-12-02 12:45:23.950 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:146 - * pattern-3/aoi: string

2025-12-02 12:45:23.951 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:146 - * pattern-3/epsg: string

2025-12-02 12:45:23.951 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:146 - * pattern-3/bands: string[]

2025-12-02 12:45:23.952 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:146 - * pattern-3/items: Directory[]

2025-12-02 12:45:23.952 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:159 -   Directory type detected, creating a related 'directory_stage_in_0'...

2025-12-02 12:45:23.953 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:161 -   Converting Directory[] to URL-compatible type...

2025-12-02 12:45:23.953 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:165 -   Directory[] converted to https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI[]

2025-12-02 12:45:23.954 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:186 -   Array detected, 'scatter' required for reference:items

2025-12-02 12:45:23.954 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:206 -   Connecting 'app/items' to 'directory_stage_in_0' output...

2025-12-02 12:45:23.955 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:257 - Analyzing pattern-3 outputs...

2025-12-02 12:45:23.955 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:263 - * pattern-3/water_bodies: Directory[]

2025-12-02 12:45:23.956 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:268 -   Directory type detected, creating a related 'stage_out_0'...

2025-12-02 12:45:23.956 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:270 -   Converting Directory[] to URL-compatible type...

2025-12-02 12:45:23.957 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:274 -   Directory[] converted to https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI[]

2025-12-02 12:45:23.958 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:295 -   Array detected, scatter required for stac_catalog:app/water_bodies

2025-12-02 12:45:23.958 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:315 -   Connecting 'app/water_bodies' to 'stage_out_0' output...

2025-12-02 12:45:23.959 | INFO     | eoap_cwlwrap:_build_orchestrator_workflow:390 - Orchestrator Workflow built in 0.0099 seconds

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Workflow components diagram¶

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Inputs¶

Id	Type	Label	Doc
`aoi`	`string`	area of interest - pattern-3/aoi	area of interest as a bounding box - This parameter is derived from pattern-3/aoi
`epsg`	`string`	EPSG code - pattern-3/epsg	EPSG code - This parameter is derived from pattern-3/epsg
`bands`	`string[]`	bands used for the NDWI - pattern-3/bands	bands used for the NDWI - This parameter is derived from pattern-3/bands
`another_input`	`string`	Another Input - my-asthonishing-stage-in-directory/another_input	An additional input for demonstration purposes - This parameter is derived from my-asthonishing-stage-in-directory/another_input
`items`	`https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI[]`	Landsat-8/9 acquisition reference - pattern-3/items	Landsat-8/9 acquisition reference - This parameter is derived from pattern-3/items
`s3_bucket`	`string`	my-super-stage-out/s3_bucket	This parameter is derived from: my-super-stage-out/s3_bucket
`sub_path`	`string`	my-super-stage-out/sub_path	This parameter is derived from: my-super-stage-out/sub_path
`aws_access_key_id`	`string`	my-super-stage-out/aws_access_key_id	This parameter is derived from: my-super-stage-out/aws_access_key_id
`aws_secret_access_key`	`string`	my-super-stage-out/aws_secret_access_key	This parameter is derived from: my-super-stage-out/aws_secret_access_key
`region_name`	`string`	my-super-stage-out/region_name	This parameter is derived from: my-super-stage-out/region_name
`endpoint_url`	`string`	my-super-stage-out/endpoint_url	This parameter is derived from: my-super-stage-out/endpoint_url

Steps¶

Id	Runs	Label	Doc
`directory_stage_in_0`	`#my-asthonishing-stage-in-directory`	None	None
`app`	`#pattern-3`	None	None
`stage_out_0`	`#my-super-stage-out`	None	None

Outputs¶

Id	Type	Label	Doc
`water_bodies`	`https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI[]`	Water bodies detected	Water bodies detected based on the NDWI and otsu threshold

Execution¶

Inputs¶

{
  "aoi": "-118.985,38.432,-118.183,38.938",
  "epsg": "EPSG:4326",
  "bands": [
    "green",
    "nir08"
  ],
  "items": [
    {
      "class": "https://raw.githubusercontent.com/eoap/schemas/main/url.yaml#URL",
      "value": "https://planetarycomputer.microsoft.com/api/stac/v1/collections/landsat-c2-l2/items/LC08_L2SP_042033_20231007_02_T1"
    },
    {
      "class": "https://raw.githubusercontent.com/eoap/schemas/main/url.yaml#URL",
      "value": "https://planetarycomputer.microsoft.com/api/stac/v1/collections/landsat-c2-l2/items/LC09_L2SP_042033_20231015_02_T1"
    }
  ]
}

Outputs¶

{
    "water_bodies": [
        {
            "value": "s3://my-bucket/my/sub/path-oeh1v0/catalog.json",
            "type": "https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI"
        },
        {
            "value": "s3://my-bucket/my/sub/path-xpiak7/catalog.json",
            "type": "https://raw.githubusercontent.com/eoap/schemas/main/string_format.yaml#URI"
        }
    ]
}