Add OpenAIRE Graph API search fetcher

[Copilot]

Adds OpenAIRE as a search source in JabRef's web search, using the OpenAIRE Graph API v2.

Changes

• OpenAireFetcher — New SearchBasedParserFetcher implementation:

  • Endpoint: https://api.openaire.eu/graph/v2/researchProducts
  • Query mapped to search parameter via DefaultQueryTransformer; results sorted by relevance, 10 per page
  • Parses JSON response fields: mainTitle, description, publicationDate, authors[].fullName, pid[scheme=doi].value, publisher, journal (name/ISSN/volume/issue/pages), subjects
  • Maps OpenAIRE types (publication, dataset, software, other) to JabRef entry types
  • Defensive subject parsing handles both flat {"value": "..."} and nested {"subject": {"value": "..."}} structures
  • Journal page fields handle both sp/ep and startPage/endPage naming variants

• WebFetchers — Registers OpenAireFetcher in getSearchBasedFetchers()

• OpenAireFetcherTest — Tests for URL construction, empty query handling, and live search result validation

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• api.foojay.io
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED -Xmx6g -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant (dns block)
• api.openaire.eu
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (dns block)
  • Triggering command: /usr/bin/curl curl -s REDACTED (dns block)
  • Triggering command: /usr/bin/curl curl -s --max-time 10 REDACTED ions-3.1.jar basename ttings-builder-3.9.12.jar -9.4.1.jar basename 3.0.jar basename net.�� ssworlds-2.9.0.jar basename 1.37.jar aspec-4.2.1.jar basename oto-2.3.0.jar basename (dns block)
• central.sonatype.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED --add-opens=java.base/java.time=ALL-UNNAMED -Xmx6g -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant (dns block)
• files.jabref.org
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java -Xmx64m -Xms64m -Dorg.gradle.appname=gradlew -jar /home/REDACTED/work/jabref/jabref/gradle/wrapper/gradle-wrapper.jar :jablib:compileJava --no-daemon -q (dns block)
• graph.openaire.eu
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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[InAnYan]

Could you please study other fetchers and n]ensure that you wrote a fetcher in a similar way other fetchers are made?

[Copilot]

Could you please study other fetchers and n]ensure that you wrote a fetcher in a similar way other fetchers are made?

Updated in commit 06007e2. Key changes to align with other fetchers:

• Switched from SearchBasedParserFetcher to PagedSearchBasedParserFetcher (consistent with ScholarArchiveFetcher, SemanticScholar, LOBIDFetcher)
• Changed withField → setField (consistent with OpenAlex, ScholarArchiveFetcher, LOBIDFetcher, etc.)
• Used AuthorList.parse() for author name normalization (like BiodiversityLibrary, ScholarArchiveFetcher)
• Renamed parsing method to parseJSONtoBibEntry (matches naming in other fetchers)
• Removed @NullMarked annotation (not used in most fetchers)
• URL construction now uses the paged getURLForQuery(queryNode, pageNumber) signature with 1-based page numbers as the OpenAIRE API expects