ARC to WARC Migration and CDX Index Comparison

Created: 2014-04-23 13:31:02

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Workflow for migrating ARC to WARC and comparing the CDX index files (Linux).

The workflow has an input port “input_directory” which is a local path to the directory containing the ARC files, and an input port “output_directory” which is the directory where the workflow outputs are created. The files in the input directory are migrated using the “arc2warc_migration_cli” tool service component to perform the migration. The “cdx_creator_arc” and “cdx_creator_warc” tool service components create cdx index files for both, the original ARC file and the migrated WARC file which, subsequently, are compared by the “cdx_comparison” tool service component that uses the CSV file comparison tool csvdiff (http://csvdiff.sourceforge.net) to compare defined columns of the two CSV files.

Command line applications used by the tool service components:

arc2warc_migration_cli: https://github.com/openplanets/hawarp/tree/master/arc2warc-migration-cli cdx_creator_(w)arc: https://github.com/internetarchive/webarchive-commons diff_cdx: http://csvdiff.sourceforge.net

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Workflow Components

Authors (1)

Titles (1)

Descriptions (1)

Dependencies (0)

Inputs (2)

Name	Description
input_directory	Local input directory containing ARC files
output_directory	Local output directory where the migrated WARC files will be stored

Processors (11)

Name	Type	Description
arc2warc_migration_cli	externaltool
arc2warc_jar	stringconstant	Value /home/onbscs/Development/scape-dev/hawarp/arc2warc-migration-cli/target/arc2warc-migration-cli-1.0-jar-with-dependencies.jar
cdx_creator_arc	externaltool
List_Files_by_Extension	localworker	Script class FileExtFilter implements FileFilter { public FileExtFilter(String ext) { this.ext = ext; } public boolean accept(File file) { return file.getName().endsWith(ext); } String ext = null; } if (extension == void \|\| extension.equals("")) { throw new RuntimeException( "The 'extension' parameter cannot be null. Please enter a valid file extension."); } if (directory == void \|\| directory.equals("")) { throw new RuntimeException( "The 'directory' parameter cannot be null. Please enter a valid file directory."); } File dirObj = new File(directory); if (!dirObj.exists()) { throw new RuntimeException("The 'directory' parameter specified:" + directory + "does not exist. Please enter a valid file directory."); } File[] fileObjList = dirObj.listFiles(new FileExtFilter(extension)); List filelist = new ArrayList(); for (int i = 0; i < fileObjList.length; i++) { filelist.add(fileObjList[i].getAbsolutePath()); }
arc.gz	stringconstant	Value arc.gz
List_Files_by_Extension_2	localworker	Script class FileExtFilter implements FileFilter { public FileExtFilter(String ext) { this.ext = ext; } public boolean accept(File file) { return file.getName().endsWith(ext); } String ext = null; } if (extension == void \|\| extension.equals("")) { throw new RuntimeException( "The 'extension' parameter cannot be null. Please enter a valid file extension."); } if (directory == void \|\| directory.equals("")) { throw new RuntimeException( "The 'directory' parameter cannot be null. Please enter a valid file directory."); } File dirObj = new File(directory); if (!dirObj.exists()) { throw new RuntimeException("The 'directory' parameter specified:" + directory + "does not exist. Please enter a valid file directory."); } File[] fileObjList = dirObj.listFiles(new FileExtFilter(extension)); List filelist = new ArrayList(); for (int i = 0; i < fileObjList.length; i++) { filelist.add(fileObjList[i].getAbsolutePath()); }
warc	stringconstant	Value warc
cdx_creator_warc	externaltool
webarchive_commons_jar	stringconstant	Value /home/onbscs/Development/scape-dev/webarchive-commons/target/webarchive-commons-jar-with-dependencies.jar
create_temp_dir	externaltool
diff_cdx	externaltool

Beanshells (0)

Outputs (5)

Name	Description
arc2warc_STDOUT
arc2warc_STDERR
arc_cdx
warc_cdx
diff_out

Datalinks (19)

Source	Sink
arc2warc_jar:value	arc2warc_migration_cli:arc2warc_jar_path
input_directory	arc2warc_migration_cli:input_directory
output_directory	arc2warc_migration_cli:output_directory
List_Files_by_Extension:filelist	cdx_creator_arc:inputfile
webarchive_commons_jar:value	cdx_creator_arc:archmdextr_jar_path
create_temp_dir:STDOUT	cdx_creator_arc:temp_dir
input_directory	List_Files_by_Extension:directory
arc.gz:value	List_Files_by_Extension:extension
output_directory	List_Files_by_Extension_2:directory
warc:value	List_Files_by_Extension_2:extension
List_Files_by_Extension_2:filelist	cdx_creator_warc:inputfile
webarchive_commons_jar:value	cdx_creator_warc:archmdextr_jar_path
create_temp_dir:STDOUT	cdx_creator_warc:temp_dir
create_temp_dir:STDOUT	diff_cdx:temp_dir
arc2warc_migration_cli:STDOUT	arc2warc_STDOUT
arc2warc_migration_cli:STDERR	arc2warc_STDERR
cdx_creator_arc:STDOUT	arc_cdx
cdx_creator_warc:STDOUT	warc_cdx
diff_cdx:STDOUT	diff_out

Coordinations (5)

Controller	Target
cdx_creator_arc	diff_cdx
arc2warc_migration_cli	cdx_creator_warc
cdx_creator_warc	diff_cdx
arc2warc_migration_cli	List_Files_by_Extension_2
arc2warc_migration_cli	cdx_creator_arc