Modified CLI and renamed packages.

2025-10-16 06:23:10 +00:00 · 2022-01-20 17:50:24 -08:00
parent 618db16b31
commit 53cb1505f4
11 changed files with 36 additions and 66 deletions
--- a/dspace-api/src/main/java/org/dspace/iiif/IIIFApiQueryServiceImpl.java
+++ b/dspace-api/src/main/java/org/dspace/iiif/IIIFApiQueryServiceImpl.java
@@ -0,0 +1,82 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.iiif;
+
+import static org.dspace.iiif.canvasdimension.Util.checkDimensions;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.apache.logging.log4j.Logger;
+import org.dspace.content.Bitstream;
+import org.dspace.iiif.util.IIIFSharedUtils;
+
+
+/**
+ * Queries the configured IIIF server for image dimensions. Used for
+ * formats that cannot be easily read using ImageIO (jpeg 2000).
+ *
+ * @author Michael Spalti mspalti@willamette.edu
+ */
+public class IIIFApiQueryServiceImpl implements IIIFApiQueryService {
+
+    private static final Logger log = org.apache.logging.log4j.LogManager.getLogger(IIIFApiQueryServiceImpl.class);
+
+    @Override
+    public int[] getImageDimensions(Bitstream bitstream) {
+        return getIiifImageDimensions(bitstream);
+    }
+
+    /**
+     * Retrieves image dimensions from the image server (IIIF Image API v.2.1.1).
+     * @param bitstream the bitstream DSO
+     * @return image dimensions
+     */
+    private int[] getIiifImageDimensions(Bitstream bitstream) {
+        int[] arr = new int[2];
+        String path = IIIFSharedUtils.getInfoJsonPath(bitstream);
+        URL url;
+        BufferedReader in = null;
+        try {
+            url = new URL(path);
+            HttpURLConnection con = (HttpURLConnection) url.openConnection();
+            con.setRequestMethod("GET");
+            in = new BufferedReader(
+                new InputStreamReader(con.getInputStream()));
+            String inputLine;
+            StringBuilder response = new StringBuilder();
+            while ((inputLine = in.readLine()) != null) {
+                response.append(inputLine);
+            }
+            JsonNode parent = new ObjectMapper().readTree(response.toString());
+            // return dimensions if found.
+            if (parent.has("width") && parent.has("height")) {
+                arr[0] = parent.get("width").asInt();
+                arr[1] = parent.get("height").asInt();
+                return checkDimensions(arr);
+            }
+        } catch (IOException e) {
+            log.error(e.getMessage(), e);
+        } finally {
+            if (in != null) {
+                try {
+                    in.close();
+                } catch (IOException e) {
+                    log.error(e.getMessage(), e);
+                }
+            }
+        }
+        return null;
+    }
+
+}