#429 Initial investigation

sparql-anything-slides/pom.xml

@@ -0,0 +1,61 @@
+<?xml version="1.0"?>
+<!--
+  ~ Copyright (c) 2023 SPARQL Anything Contributors @ http://github.com/sparql-anything
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>io.github.sparql-anything</groupId>
+		<artifactId>sparql-anything-parent</artifactId>
+		<version>${revision}</version>
+	</parent>
+	<properties>
+		<revision>0.9.0-SNAPSHOT</revision>
+	</properties>
+	<artifactId>sparql-anything-slides</artifactId>
+	<dependencies>
+		<dependency>
+			<groupId>io.github.sparql-anything</groupId>
+			<artifactId>sparql-anything-model</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>io.github.sparql-anything</groupId>
+			<artifactId>sparql-anything-testutils</artifactId>
+			<version>${project.version}</version>
+			<scope>test</scope>
+		</dependency>
+
+		<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
+		<dependency>
+			<groupId>org.apache.poi</groupId>
+			<artifactId>poi-ooxml</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+
+	</dependencies>
+
+</project>

sparql-anything-slides/src/main/java/io/github/sparqlanything/slides/PptxTriplifier.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2023 SPARQL Anything Contributors @ http://github.com/sparql-anything
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.github.sparqlanything.slides;
+
+import io.github.sparqlanything.model.*;
+import org.apache.poi.xslf.usermodel.XMLSlideShow;
+import org.apache.poi.xslf.usermodel.XSLFSlide;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.Properties;
+import java.util.Set;
+
+public class PptxTriplifier implements Triplifier {
+
+	public final static String MERGE_PARAGRAPHS = "docs.merge-paragraphs";
+	public final static String TABLE_HEADERS = "docs.table-headers";
+
+	private static final Logger logger = LoggerFactory.getLogger(PptxTriplifier.class);
+
+	private static void addOptionalValue(FacadeXGraphBuilder builder, String dataSourceId, String containerId, String slotKey, String type, Object value){
+		if(value!=null){
+			String newContainer = containerId + "/" +
+			builder.addValue(dataSourceId, containerId, slotKey, value);
+		}
+	}
+
+	@Override
+	public void triplify(Properties properties, FacadeXGraphBuilder builder) throws IOException, TriplifierHTTPException {
+		URL url = Triplifier.getLocation(properties);
+		if (url == null)
+			return;
+		String dataSourceId = "";
+		String namespace = PropertyUtils.getStringProperty(properties, IRIArgument.NAMESPACE);
+
+		builder.addRoot(dataSourceId);
+
+		InputStream is = url.openStream();
+		int slideNumber = 1;
+
+		try (XMLSlideShow slides = new XMLSlideShow(is)) {
+
+			builder.addType(dataSourceId, SPARQLAnythingConstants.ROOT_ID, "Presentation");
+
+			for(XSLFSlide slide : slides.getSlides()){
+				String slideId = dataSourceId + "_slide_" + slideNumber;
+				builder.addContainer(dataSourceId, SPARQLAnythingConstants.ROOT_ID, 1, slideId);
+				slideNumber ++;
+
+				builder.addType(dataSourceId, slideId, "Slide");
+				addOptionalValue(builder, dataSourceId, slideId, "title", slide.getTitle() );
+				addOptionalValue(builder, dataSourceId, slideId, "name", slide.getSlideName() );
+				addOptionalValue(builder, dataSourceId, slideId, "number", slide.getSlideNumber() );
+				addOptionalValue(builder, dataSourceId, slideId, "number", slide.get );
+
+
+			}
+		}
+
+
+	}
+
+	@Override
+	public Set<String> getMimeTypes() {
+//		return Sets.newHashSet("application/vnd.openxmlformats-officedocument.wordprocessingml.document");
+		return null;
+	}
+
+	@Override
+	public Set<String> getExtensions() {
+//		return Sets.newHashSet("docx");
+		return null;
+	}
+
+}