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feat: avoid creating temporary files when loading json-ld document ca…
…che (#3290) * feat: avoid creating temporary files when loading json-ld document cache * fix failing test * Trigger build * Print DEPENDENCIES file on ci console
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119 changes: 119 additions & 0 deletions
119
extensions/common/json-ld/src/main/java/org/eclipse/edc/jsonld/document/JarLoader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| /* | ||
| * Copyright (c) 2023 Bayerische Motoren Werke Aktiengesellschaft (BMW AG) | ||
| * | ||
| * This program and the accompanying materials are made available under the | ||
| * terms of the Apache License, Version 2.0 which is available at | ||
| * https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * Contributors: | ||
| * Bayerische Motoren Werke Aktiengesellschaft (BMW AG) - initial API and implementation | ||
| * | ||
| */ | ||
|
|
||
| package org.eclipse.edc.jsonld.document; | ||
|
|
||
| import com.apicatalog.jsonld.JsonLdError; | ||
| import com.apicatalog.jsonld.JsonLdErrorCode; | ||
| import com.apicatalog.jsonld.StringUtils; | ||
| import com.apicatalog.jsonld.document.Document; | ||
| import com.apicatalog.jsonld.document.JsonDocument; | ||
| import com.apicatalog.jsonld.document.RdfDocument; | ||
| import com.apicatalog.jsonld.http.media.MediaType; | ||
| import com.apicatalog.jsonld.loader.DocumentLoader; | ||
| import com.apicatalog.jsonld.loader.DocumentLoaderOptions; | ||
| import org.eclipse.edc.spi.result.Result; | ||
| import org.jetbrains.annotations.NotNull; | ||
|
|
||
| import java.io.FileNotFoundException; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.net.URI; | ||
| import java.nio.file.NoSuchFileException; | ||
| import java.util.Optional; | ||
| import java.util.function.Function; | ||
|
|
||
| /** | ||
| * Enables loading documents from jar files | ||
| */ | ||
| public class JarLoader implements DocumentLoader { | ||
|
|
||
| @Override | ||
| public Document loadDocument(URI uri, DocumentLoaderOptions options) throws JsonLdError { | ||
| if (!"jar".equalsIgnoreCase(uri.getScheme())) { | ||
| throw new JsonLdError(JsonLdErrorCode.LOADING_DOCUMENT_FAILED, "Unsupported URL scheme [" + uri.getScheme() + "]. JarLoader accepts only jar scheme."); | ||
| } | ||
|
|
||
| try (var is = uri.toURL().openStream()) { | ||
| var document = createDocument(uri) | ||
| .apply(is) | ||
| .orElseThrow(f -> new JsonLdError(JsonLdErrorCode.LOADING_DOCUMENT_FAILED, f.getFailureDetail())); | ||
| document.setDocumentUrl(uri); | ||
| return document; | ||
|
|
||
| } catch (NoSuchFileException | FileNotFoundException e) { | ||
| throw new JsonLdError(JsonLdErrorCode.LOADING_DOCUMENT_FAILED, "File not found [" + uri + "]: " + e.getMessage()); | ||
| } catch (IOException e) { | ||
| throw new JsonLdError(JsonLdErrorCode.LOADING_DOCUMENT_FAILED, e); | ||
| } | ||
| } | ||
|
|
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| @NotNull | ||
| private Function<InputStream, Result<Document>> createDocument(URI uri) { | ||
| var type = detectedContentType(uri.getSchemeSpecificPart().toLowerCase()) | ||
| .orElse(MediaType.JSON); | ||
|
|
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| if (JsonDocument.accepts(type)) { | ||
| return jsonDocumentResolver(type); | ||
| } | ||
|
|
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| if (RdfDocument.accepts(type)) { | ||
| return rdfDocumentResolver(type); | ||
| } | ||
|
|
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| return s -> Result.failure("cannot read document"); | ||
| } | ||
|
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| @NotNull | ||
| private Function<InputStream, Result<Document>> jsonDocumentResolver(MediaType type) { | ||
| return stream -> { | ||
| try { | ||
| return Result.success(JsonDocument.of(type, stream)); | ||
| } catch (JsonLdError e) { | ||
| return Result.failure(e.getMessage()); | ||
| } | ||
| }; | ||
| } | ||
|
|
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| @NotNull | ||
| private Function<InputStream, Result<Document>> rdfDocumentResolver(MediaType type) { | ||
| return stream -> { | ||
| try { | ||
| return Result.success(RdfDocument.of(type, stream)); | ||
| } catch (JsonLdError e) { | ||
| return Result.failure(e.getMessage()); | ||
| } | ||
| }; | ||
| } | ||
|
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| private Optional<MediaType> detectedContentType(String name) { | ||
| if (name == null || StringUtils.isBlank(name)) { | ||
| return Optional.empty(); | ||
| } | ||
| if (name.endsWith(".nq")) { | ||
| return Optional.of(MediaType.N_QUADS); | ||
| } | ||
| if (name.endsWith(".json")) { | ||
| return Optional.of(MediaType.JSON); | ||
| } | ||
| if (name.endsWith(".jsonld")) { | ||
| return Optional.of(MediaType.JSON_LD); | ||
| } | ||
| if (name.endsWith(".html")) { | ||
| return Optional.of(MediaType.HTML); | ||
| } | ||
|
|
||
| return Optional.empty(); | ||
| } | ||
| } |
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