123 lines
3.8 KiB
Markdown
123 lines
3.8 KiB
Markdown
# Datenintegration für noah.nrw
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Harvesting von OAI-PMH-Schnittstellen und Transformation in METS/MODS für das Portal [noah.nrw](https://noah.nrw/)
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## Datenfluss
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## Verwendete Tools
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* Harvesting (mit Cache): [metha](https://github.com/miku/metha/)
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* Transformation: [OpenRefine](https://github.com/OpenRefine/OpenRefine) und [openrefine-client](https://github.com/opencultureconsulting/openrefine-client)
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* Task Runner: [Task](https://github.com/go-task/task)
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## Systemvoraussetzungen
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* GNU/Linux (getestet mit Fedora 32)
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* JAVA 8+
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## Installation
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1. Git Repository klonen
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```sh
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git clone https://github.com/opencultureconsulting/noah.git
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cd noah
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```
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2. [OpenRefine 3.4.1](https://github.com/OpenRefine/OpenRefine/releases/tag/3.4.1) (benötigt JAVA 8+)
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```sh
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# download OpenRefine
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wget -O openrefine.tar.gz https://github.com/OpenRefine/OpenRefine/releases/download/3.4.1/openrefine-linux-3.4.1.tar.gz
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# install OpenRefine in subdirectory openrefine
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mkdir -p openrefine
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tar -xzf openrefine.tar.gz -C openrefine --strip 1 && rm openrefine.tar.gz
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# do not try to open OpenRefine in browser
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sed -i '$ a JAVA_OPTIONS=-Drefine.headless=true' "openrefine/refine.ini"
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# set autosave period from 5 minutes to 25 hours
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sed -i 's/#REFINE_AUTOSAVE_PERIOD=60/REFINE_AUTOSAVE_PERIOD=1440/' "openrefine/refine.ini"
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```
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3. [openrefine-client 0.3.10](https://github.com/opencultureconsulting/openrefine-client/releases/tag/v0.3.10)
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```sh
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# install openrefine-client in subdirectory openrefine
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mkdir -p openrefine
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wget -O openrefine/openrefine-client https://github.com/opencultureconsulting/openrefine-client/releases/download/v0.3.10/openrefine-client_0-3-10_linux
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chmod +x openrefine/openrefine-client
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```
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4. [metha 0.2.20](https://github.com/miku/metha/releases/tag/v0.2.20)
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a) RPM-basiert (Fedora, CentOS, SLES, etc.)
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```sh
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# download and install rpm package
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wget https://github.com/miku/metha/releases/download/v0.2.20/metha-0.2.20-0.x86_64.rpm
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sudo dnf install ./metha-0.2.20-0.x86_64.rpm && rm metha-0.2.20-0.x86_64.rpm
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```
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b) DEB-basiert (Debian, Ubuntu etc.)
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```sh
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# download and install deb package
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wget https://github.com/miku/metha/releases/download/v0.2.20/metha_0.2.20_amd64.deb
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sudo apt install ./metha_0.2.20_amd64.deb && rm metha_0.2.20_amd64.deb
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```
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5. [Task 3.2.2](https://github.com/go-task/task/releases/tag/v3.2.2)
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a) RPM-basiert (Fedora, CentOS, SLES, etc.)
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```sh
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# download and install rpm package
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wget https://github.com/go-task/task/releases/download/v3.2.2/task_linux_amd64.rpm
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sudo dnf install ./task_linux_amd64.rpm && rm task_linux_amd64.rpm
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```
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b) DEB-basiert (Debian, Ubuntu etc.)
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```sh
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# download and install deb package
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wget https://github.com/go-task/task/releases/download/v3.2.2/task_linux_amd64.deb
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sudo apt install ./task_linux_amd64.deb && rm task_linux_amd64.deb
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```
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## Nutzung
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* Alle Datenquellen harvesten und transformieren (parallelisiert)
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```
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task default
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```
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* Eine Datenquelle harvesten und transformieren
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```
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task siegen:default
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```
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* Cache einer Datenquelle löschen
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```
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task siegen:delete
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```
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* Verfügbare Tasks auflisten
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```
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task --list
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```
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## Konfiguration
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* Umgebungsvariablen in [Taskfile.yml](Taskfile.yml)
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* Workflow für die Datenquellen in [tasks](tasks)
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* Beispiel: [tasks/siegen.yml](tasks/siegen.yml)
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* Transformationsregeln in [rules](rules)
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* Beispiel: [rules/siegen/hbz.json](rules/siegen/hbz.json)
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## OAI-PMH Data Provider
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Für die Bereitstellung der transformierten Daten wird der dateibasierte OAI-PMH Data Provider [oai_pmh](https://github.com/opencultureconsulting/oai_pmh) genutzt. Installations- und Nutzungshinweise sind dort zu finden. |