src: format Java files with google-java-format

Using AOSP format so we get four spaces instead of two.

.github/workflows/maven.yml

@@ -0,0 +1,24 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: Build
+
+on:
+  push:
+    branches: [ dspace6 ]
+  pull_request:
+    branches: [ dspace6 ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml

.gitignore

@@ -70,4 +70,10 @@ fabric.properties
 # Android studio 3.1+ serialized cache file
 .idea/caches/build_file_checksums.ser
 
+# VS Code settings
+.vscode
+
+# asdf-vm tool-versions file
+.tool-versions
+
 target/

.travis.yml

@@ -1,8 +0,0 @@
-dist: bionic
-language: java
-jdk:
-  - openjdk8
-script:
-  - mvn package -B
-
-# vim: ts=2 sw=2 et

CHANGELOG.md

@@ -0,0 +1,15 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Unreleased
+### Updated
+- Update dependencies in `pom.xml`
+
+### Changed
+- Java compiler and target from JDK 7 to JDK 8
+
+### Added
+- New `FixLowQualityThumbnails` script to detect and remove more low-quality thumbnails

README.md

@@ -1,10 +1,11 @@
-# CGSpace Java Helpers [![Build Status](https://travis-ci.org/ilri/cgspace-java-helpers.svg?branch=master)](https://travis-ci.org/ilri/dspace-curation-tasks)
+# CGSpace Java Helpers [![GitHub Actions](https://github.com/ilri/cgspace-java-helpers/workflows/Build/badge.svg)](https://github.com/ilri/cgspace-java-helpers/actions)
 DSpace curation tasks and other Java-based helpers used on the [CGSpace](https://cgspace.cgiar.org) institutional repository:
 
 - **CountryCodeTagger**: add ISO 3166-1 Alpha2 country codes to items based on their existing country metadata
-- **FixJpgJpgThumbnails**: Fix low-quality ".jpg.jpg" thumbnails by replacing them with their originals
+- **FixJpgJpgThumbnails**: fix low-quality ".jpg.jpg" thumbnails by replacing them with their originals
+- **FixLowQualityThumbnails**: remove low-quality thumbnails when PDF bitstreams are present
 
-Tested on DSpace 5.8. Read more about the [DSpace curation system](https://wiki.lyrasis.org/display/DSDOC5x/Curation+System).
+Tested on DSpace 6.3. Read more about the [DSpace curation system](https://wiki.lyrasis.org/display/DSDOC5x/Curation+System).
 
 ## Build and Install
 
@@ -15,7 +16,7 @@ To use these curation tasks in a DSpace project add the following dependency to
 <dependency>
   <groupId>io.github.ilri.cgspace</groupId>
   <artifactId>cgspace-java-helpers</artifactId>
-  <version>5.1</version>
+  <version>6.1-SNAPSHOT</version>
 </dependency>
 ```
 
@@ -24,49 +25,25 @@ The jar will be copied to all DSpace applications.
 ### Manual Build and Install
 To build the standalone jar:
 
-```
+```console
 $ mvn package
 ```
 
 Copy the resulting jar to the DSpace `lib` directory:
 
-```
+```console
-$ cp target/cgspace-java-helpers-5.1.jar ~/dspace/lib
+$ cp target/cgspace-java-helpers-6.1-SNAPSHOT.jar ~/dspace/lib/
 ```
 
 ## Configuration
-Add the curation task to DSpace's `config/modules/curate.cfg`:
+Please refer to the appropriate README.md file:
 
-```
+- Curation Tasks: [src/main/java/io/github/ilri/cgspace/ctasks/README.md](https://github.com/ilri/cgspace-java-helpers/blob/dspace6/src/main/java/io/github/ilri/cgspace/ctasks/README.md)
-plugin.named.org.dspace.curate.CurationTask = \
+- Scripts: [src/main/java/io/github/ilri/cgspace/scripts/README.md](https://github.com/ilri/cgspace-java-helpers/blob/dspace6/src/main/java/io/github/ilri/cgspace/scripts/README.md)
-...
-    io.github.ilri.cgspace.ctasks.CountryCodeTagger = countrycodetagger \
-    io.github.ilri.cgspace.ctasks.CountryCodeTagger = countrycodetagger.force
-```
 
-And then add a configuration file for the task in `config/modules/countrycodetagger.cfg`:
+## TODO
 
-```
+- Add a curation task to normalize DOIs to "https://doi.org" format
-# name of the field containing ISO 3166-1 country names
-iso3166.field = cg.coverage.country
-
-# name of the field containing ISO 3166-1 Alpha2 country codes
-iso3166-alpha2.field = cg.coverage.iso3166-alpha2
-
-# only add country codes if an item doesn't have any (default false)
-#forceupdate = false
-```
-
-*Note*: DSpace's curation system supports "profiles" where you can use the same task with different options, for example above I have a normal country code tagger and a "force" variant. To use the "force" variant you create a new configuration file with the overridden options in `config/modules/countrycodetagger.force.cfg`. The "force" profile clears all existing country codes and updates everything.
-
-## Invocation
-Once the jar is installed and you have added appropriate configuration in `~/dspace/config/modules`:
-
-```
-$ ~/dspace/bin/dspace curate -t countrycodetagger -i 10568/3 -r - -l 500 -s object
-```
-
-*Note*: it is very important to set the cache limit (`-l`) and the database transaction scope to something sensible (`object`) if you're curating a community or collection with more than a few hundred items.
 
 ## Notes
 This project was initially created according to the [Maven Getting Started Guide](https://maven.apache.org/guides/getting-started/):
@@ -75,12 +52,6 @@ This project was initially created according to the [Maven Getting Started Guide
 $ mvn -B archetype:generate -DgroupId=io.github.ilri.cgspace -DartifactId=cgspace-java-helpers -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4
 ```
 
-## TODO
-
-- Make sure this doesn't work on items in the workflow
-- Check for existence of metadata field before trying to add metadata
-- Add tests
-
 ## License
 This work is licensed under the [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html).
 

pom.xml

@@ -6,7 +6,7 @@
 
   <groupId>io.github.ilri.cgspace</groupId>
   <artifactId>cgspace-java-helpers</artifactId>
-  <version>5.1</version>
+  <version>6.1-SNAPSHOT</version>
 
   <name>cgspace-java-helpers</name>
   <url>https://github.com/ilri/cgspace-java-helpers</url>
@@ -28,26 +28,20 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.7</maven.compiler.target>
+    <maven.compiler.target>1.8</maven.compiler.target>
   </properties>
 
   <dependencies>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>4.11</version>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>
-      <version>2.2.1</version>
+      <version>2.9.1</version>
     </dependency>
     <dependency>
       <groupId>org.dspace</groupId>
       <artifactId>dspace-api</artifactId>
-      <version>5.8</version>
+      <version>6.3</version>
       <scope>provided</scope>
     </dependency>
   </dependencies>
@@ -75,41 +69,41 @@
         <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
         <plugin>
           <artifactId>maven-clean-plugin</artifactId>
-          <version>3.1.0</version>
+          <version>3.2.0</version>
         </plugin>
         <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
         <plugin>
           <artifactId>maven-resources-plugin</artifactId>
-          <version>3.0.2</version>
+          <version>3.3.0</version>
         </plugin>
         <plugin>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.8.0</version>
+          <version>3.10.1</version>
         </plugin>
         <plugin>
           <artifactId>maven-surefire-plugin</artifactId>
-          <version>2.22.1</version>
+          <version>3.0.0-M7</version>
         </plugin>
         <plugin>
           <artifactId>maven-jar-plugin</artifactId>
-          <version>3.0.2</version>
+          <version>3.3.0</version>
         </plugin>
         <plugin>
           <artifactId>maven-install-plugin</artifactId>
-          <version>2.5.2</version>
+          <version>3.0.1</version>
         </plugin>
         <plugin>
           <artifactId>maven-deploy-plugin</artifactId>
-          <version>2.8.2</version>
+          <version>3.3.0</version>
         </plugin>
         <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
         <plugin>
           <artifactId>maven-site-plugin</artifactId>
-          <version>3.7.1</version>
+          <version>3.12.1</version>
         </plugin>
         <plugin>
           <artifactId>maven-project-info-reports-plugin</artifactId>
-          <version>3.0.0</version>
+          <version>3.4.1</version>
         </plugin>
       </plugins>
     </pluginManagement>

src/main/java/io/github/ilri/cgspace/ctasks/CGSpaceCountriesVocabulary.java

@@ -1,20 +1,8 @@
 /*
-DSpace Curation Tasks
+ * Copyright (C) 2020 Alan Orth
-Copyright (C) 2020  Alan Orth
+ *
-
+ * SPDX-License-Identifier: GPL-3.0-or-later
-This program is free software: you can redistribute it and/or modify
+ */
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
 
 package io.github.ilri.cgspace.ctasks;
 

src/main/java/io/github/ilri/cgspace/ctasks/CountriesVocabulary.java

@@ -1,20 +1,8 @@
 /*
-    DSpace Curation Tasks
+ * Copyright (C) 2020 Alan Orth
-    Copyright (C) 2020  Alan Orth
+ *
-
+ * SPDX-License-Identifier: GPL-3.0-or-later
-    This program is free software: you can redistribute it and/or modify
+ */
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
 
 package io.github.ilri.cgspace.ctasks;
 
@@ -23,26 +11,29 @@ import javax.annotation.Nullable;
 public class CountriesVocabulary {
 
     class Country {
-        private String name;            //required
+        private String name; // required
-        private String common_name;     //optional
+        private String common_name; // optional
-        private String official_name;   //optional
+        private String official_name; // optional
-        private String cgspace_name;    //optional
+        private String cgspace_name; // optional
-        private String numeric;         //required Hmmmm need to cast this...
+        private String numeric; // required Hmmmm need to cast this...
-        private String alpha_2;         //required
+        private String alpha_2; // required
-        private String alpha_3;         //required
+        private String alpha_3; // required
 
-        public Country(String name,
+        public Country(
-                       @Nullable String common_name,
+                String name,
-                       @Nullable String official_name,
+                @Nullable String common_name,
-                       @Nullable String cgspace_name,
+                @Nullable String official_name,
-                       String numeric,
+                @Nullable String cgspace_name,
-                       String alpha_2,
+                String numeric,
-                       String alpha_3) {
+                String alpha_2,
+                String alpha_3) {
             this.name = name;
             this.common_name = common_name;
             this.official_name = official_name;
             this.cgspace_name = cgspace_name;
-            this.numeric = numeric; // fuuuuu this is a string and we can't cast to Integer because some values are zeropadded like "004"
+            this.numeric =
+                    numeric; // fuuuuu this is a string and we can't cast to Integer because some
+                             // values are zeropadded like "004"
             this.alpha_2 = alpha_2;
             this.alpha_3 = alpha_3;
         }

src/main/java/io/github/ilri/cgspace/ctasks/CountryCodeTagger.java

@@ -1,29 +1,18 @@
 /*
-    DSpace Curation Tasks
+ * Copyright (C) 2020 Alan Orth
-    Copyright (C) 2020  Alan Orth
+ *
-
+ * SPDX-License-Identifier: GPL-3.0-or-later
-    This program is free software: you can redistribute it and/or modify
+ */
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
 
 package io.github.ilri.cgspace.ctasks;
 
 import com.google.gson.Gson;
+
 import org.apache.log4j.Logger;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
-import org.dspace.content.Metadatum;
+import org.dspace.content.MetadataValue;
 import org.dspace.core.Constants;
 import org.dspace.curate.AbstractCurationTask;
 import org.dspace.curate.Curator;
@@ -35,11 +24,11 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 
-public class CountryCodeTagger extends AbstractCurationTask
+public class CountryCodeTagger extends AbstractCurationTask {
-{
     public class CountryCodeTaggerConfig {
         private final String isocodesJsonPath = "/io/github/ilri/cgspace/ctasks/iso_3166-1.json";
-        private final String cgspaceCountriesJsonPath = "/io/github/ilri/cgspace/ctasks/cgspace-countries.json";
+        private final String cgspaceCountriesJsonPath =
+                "/io/github/ilri/cgspace/ctasks/cgspace-countries.json";
         private final String iso3166Field = taskProperty("iso3166.field");
         private final String iso3166Alpha2Field = taskProperty("iso3166-alpha2.field");
         private final boolean forceupdate = taskBooleanProperty("forceupdate", false);
@@ -69,73 +58,100 @@ public class CountryCodeTagger extends AbstractCurationTask
     }
 
     @Override
-    public int perform(DSpaceObject dso) throws IOException
+    public int perform(DSpaceObject dso) throws IOException {
-    {
         // gotta define this here so we can access it after the if context...
         CountryCodeTaggerResult alpha2Result = new CountryCodeTaggerResult();
 
-		if (dso.getType() == Constants.ITEM)
+        if (dso.getType() == Constants.ITEM) {
-        {
             // Load configuration
             CountryCodeTaggerConfig config = new CountryCodeTaggerConfig();
 
-            Item item = (Item)dso;
+            Item item = (Item) dso;
 
-            alpha2Result = performAlpha2(item, config);
+            try {
+                alpha2Result = performAlpha2(item, config);
+            } catch (SQLException throwables) {
+                throwables.printStackTrace();
+            }
 
             setResult(alpha2Result.getResult());
             report(alpha2Result.getResult());
-		}
+        }
 
-		return alpha2Result.getStatus();
+        return alpha2Result.getStatus();
     }
 
-    public CountryCodeTaggerResult performAlpha2(Item item, CountryCodeTaggerConfig config) throws IOException
+    public CountryCodeTaggerResult performAlpha2(Item item, CountryCodeTaggerConfig config)
-    {
+            throws IOException, SQLException {
         CountryCodeTaggerResult alpha2Result = new CountryCodeTaggerResult();
         String itemHandle = item.getHandle();
 
-        Metadatum[] itemCountries = item.getMetadataByMetadataString(config.iso3166Field);
+        List<MetadataValue> itemCountries =
+                itemService.getMetadataByMetadataString(item, config.iso3166Field);
 
         // skip items that don't have country metadata
-        if (itemCountries.length == 0) {
+        if (itemCountries.size() == 0) {
             alpha2Result.setResult(itemHandle + ": no countries, skipping.");
             alpha2Result.setStatus(Curator.CURATE_SKIP);
         } else {
             Gson gson = new Gson();
 
-            // TODO: convert to try: https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html
+            // TODO: convert to try:
-            BufferedReader reader = new BufferedReader(new InputStreamReader(this.getClass().getResourceAsStream(config.isocodesJsonPath)));
+            // https://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html
-            ISO3166CountriesVocabulary isocodesCountriesJson = gson.fromJson(reader, ISO3166CountriesVocabulary.class);
+            BufferedReader reader =
+                    new BufferedReader(
+                            new InputStreamReader(
+                                    this.getClass().getResourceAsStream(config.isocodesJsonPath)));
+            ISO3166CountriesVocabulary isocodesCountriesJson =
+                    gson.fromJson(reader, ISO3166CountriesVocabulary.class);
             reader.close();
 
-            reader = new BufferedReader(new InputStreamReader(this.getClass().getResourceAsStream(config.cgspaceCountriesJsonPath)));
+            reader =
-            CGSpaceCountriesVocabulary cgspaceCountriesJson = gson.fromJson(reader, CGSpaceCountriesVocabulary.class);
+                    new BufferedReader(
+                            new InputStreamReader(
+                                    this.getClass()
+                                            .getResourceAsStream(config.cgspaceCountriesJsonPath)));
+            CGSpaceCountriesVocabulary cgspaceCountriesJson =
+                    gson.fromJson(reader, CGSpaceCountriesVocabulary.class);
             reader.close();
 
-            // split the alpha2 country code field into schema, element, and qualifier so we can use it with item.addMetadata()
+            // split the alpha2 country code field into schema, element, and qualifier so we can use
+            // it with item.addMetadata()
             String[] iso3166Alpha2FieldParts = config.iso3166Alpha2Field.split("\\.");
 
             if (config.forceupdate) {
-                item.clearMetadata(iso3166Alpha2FieldParts[0], iso3166Alpha2FieldParts[1], iso3166Alpha2FieldParts[2], Item.ANY);
+                itemService.clearMetadata(
+                        Curator.curationContext(),
+                        item,
+                        iso3166Alpha2FieldParts[0],
+                        iso3166Alpha2FieldParts[1],
+                        iso3166Alpha2FieldParts[2],
+                        Item.ANY);
             }
 
             // check the item's country codes, if any
-            Metadatum[] itemAlpha2CountryCodes = item.getMetadataByMetadataString(config.iso3166Alpha2Field);
+            List<MetadataValue> itemAlpha2CountryCodes =
+                    itemService.getMetadataByMetadataString(item, config.iso3166Alpha2Field);
 
-            if (itemAlpha2CountryCodes.length == 0) {
+            if (itemAlpha2CountryCodes.size() == 0) {
                 List<String> newAlpha2Codes = new ArrayList<String>();
-                for (Metadatum itemCountry : itemCountries) {
+                for (MetadataValue itemCountry : itemCountries) {
-                    //check ISO 3166-1 countries
+                    // check ISO 3166-1 countries
                     for (CountriesVocabulary.Country country : isocodesCountriesJson.countries) {
-                        if (itemCountry.value.equalsIgnoreCase(country.getName()) || itemCountry.value.equalsIgnoreCase(country.get_official_name()) || itemCountry.value.equalsIgnoreCase(country.get_common_name())) {
+                        if (itemCountry.getValue().equalsIgnoreCase(country.getName())
+                                || itemCountry
+                                        .getValue()
+                                        .equalsIgnoreCase(country.get_official_name())
+                                || itemCountry
+                                        .getValue()
+                                        .equalsIgnoreCase(country.get_common_name())) {
                             newAlpha2Codes.add(country.getAlpha_2());
                         }
                     }
 
-                    //check CGSpace countries
+                    // check CGSpace countries
                     for (CountriesVocabulary.Country country : cgspaceCountriesJson.countries) {
-                        if (itemCountry.value.equalsIgnoreCase(country.getCgspace_name())) {
+                        if (itemCountry.getValue().equalsIgnoreCase(country.getCgspace_name())) {
                             newAlpha2Codes.add(country.getAlpha_2());
                         }
                     }
@@ -143,16 +159,26 @@ public class CountryCodeTagger extends AbstractCurationTask
 
                 if (newAlpha2Codes.size() > 0) {
                     try {
-                        // add metadata values (casting the List<String> to an array)
+                        itemService.addMetadata(
-                        item.addMetadata(iso3166Alpha2FieldParts[0], iso3166Alpha2FieldParts[1], iso3166Alpha2FieldParts[2], "en_US", newAlpha2Codes.toArray(new String[0]));
+                                Curator.curationContext(),
-                        item.update();
+                                item,
+                                iso3166Alpha2FieldParts[0],
+                                iso3166Alpha2FieldParts[1],
+                                iso3166Alpha2FieldParts[2],
+                                "en_US",
+                                newAlpha2Codes);
+                        itemService.update(Curator.curationContext(), item);
                     } catch (SQLException | AuthorizeException sqle) {
                         config.log.debug(sqle.getMessage());
                         alpha2Result.setResult(itemHandle + ": error");
                         alpha2Result.setStatus(Curator.CURATE_ERROR);
                     }
 
-                    alpha2Result.setResult(itemHandle + ": added " + newAlpha2Codes.size() + " alpha2 country code(s)");
+                    alpha2Result.setResult(
+                            itemHandle
+                                    + ": added "
+                                    + newAlpha2Codes.size()
+                                    + " alpha2 country code(s)");
                 } else {
                     alpha2Result.setResult(itemHandle + ": no matching countries found");
                 }

src/main/java/io/github/ilri/cgspace/ctasks/ISO3166CountriesVocabulary.java

@@ -1,27 +1,18 @@
 /*
-DSpace Curation Tasks
+ * Copyright (C) 2020 Alan Orth
-Copyright (C) 2020  Alan Orth
+ *
-
+ * SPDX-License-Identifier: GPL-3.0-or-later
-This program is free software: you can redistribute it and/or modify
+ */
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
 
 package io.github.ilri.cgspace.ctasks;
 
 import com.google.gson.annotations.SerializedName;
+
 import java.util.List;
 
 public class ISO3166CountriesVocabulary extends CountriesVocabulary {
-    // support reading iso_3166-1.json from Debian's iso-codes package using SerializedName since our class needs to match the JSON exactly
+    // support reading iso_3166-1.json from Debian's iso-codes package using SerializedName since
-    @SerializedName("3166-1") List<Country> countries;
+    // our class needs to match the JSON exactly
+    @SerializedName("3166-1")
+    List<Country> countries;
 }

src/main/java/io/github/ilri/cgspace/ctasks/README.md

@@ -0,0 +1,72 @@
+# Curation Tasks
+DSpace curation tasks used on the [CGSpace](https://cgspace.cgiar.org) institutional repository:
+
+- **CountryCodeTagger**: add ISO 3166-1 Alpha2 country codes to items based on their existing country metadata
+
+Tested on DSpace 6.3. Read more about the [DSpace curation system](https://wiki.lyrasis.org/display/DSDOC5x/Curation+System).
+
+## Build and Install
+
+### Integrate into DSpace Build
+To use these curation tasks in a DSpace project add the following dependency to `dspace/modules/additions/pom.xml`:
+
+```
+<dependency>
+  <groupId>io.github.ilri.cgspace</groupId>
+  <artifactId>cgspace-java-helpers</artifactId>
+  <version>6.1-SNAPSHOT</version>
+</dependency>
+```
+
+The jar will be copied to all DSpace applications.
+
+### Manual Build and Install
+To build the standalone jar:
+
+```
+$ mvn package
+```
+
+Copy the resulting jar to the DSpace `lib` directory:
+
+```
+$ cp target/cgspace-java-helpers-6.1-SNAPSHOT.jar ~/dspace/lib/
+```
+
+## Configuration
+Add the curation task to DSpace's `config/modules/curate.cfg`:
+
+```
+plugin.named.org.dspace.curate.CurationTask = io.github.ilri.cgspace.ctasks.CountryCodeTagger = countrycodetagger
+plugin.named.org.dspace.curate.CurationTask = io.github.ilri.cgspace.ctasks.CountryCodeTagger = countrycodetagger.force
+```
+
+And then add the following variables to your `local.cfg` or some other [configuration file that is included](https://wiki.lyrasis.org/display/DSDOC6x/Configuration+Reference#ConfigurationReference-IncludingotherPropertyFiles):
+
+```
+# name of the field containing ISO 3166-1 country names
+countrycodetagger.iso3166.field = cg.coverage.country
+
+# name of the field containing ISO 3166-1 Alpha2 country codes
+countrycodetagger.iso3166-alpha2.field = cg.coverage.iso3166-alpha2
+
+# only add country codes if an item doesn't have any (default false)
+#countrycodetagger.forceupdate = false
+```
+
+*Note*: DSpace's curation system supports "profiles" where you can use the same task with different options, for example above I have a normal country code tagger task and a "force" variant. The "force" variant is the same task, but it looks for configuration variables using the `countrycodetagger.force` instead. To use the "force" variant you simply need to add these new variables with the `forceupdate` parameter overridden to the same configuration file where you put the other variables. The "force" profile clears all existing country codes and updates everything.
+
+## Invocation
+Once the jar is installed and you have added appropriate configuration in `~/dspace/config/modules`:
+
+```
+$ ~/dspace/bin/dspace curate -t countrycodetagger -i 10568/3 -r - -s object
+```
+
+*Note*: it is very important to set the database transaction scope to something sensible (`object`) if you're curating a community or collection with more than a few hundred items.
+
+## TODO
+
+- Make sure this doesn't work on items in the workflow
+- Check for existence of metadata field before trying to add metadata
+- Add tests

src/main/java/io/github/ilri/cgspace/scripts/FixJpgJpgThumbnails.java

@@ -1,107 +1,173 @@
+/*
+ * Copyright (C) 2020 Alan Orth
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
 package io.github.ilri.cgspace.scripts;
 
 import org.apache.commons.lang.StringUtils;
 import org.dspace.authorize.AuthorizeException;
-import org.dspace.content.*;
+import org.dspace.content.Bitstream;
+import org.dspace.content.Bundle;
+import org.dspace.content.Collection;
+import org.dspace.content.Community;
+import org.dspace.content.DSpaceObject;
+import org.dspace.content.Item;
+import org.dspace.content.MetadataValue;
+import org.dspace.content.factory.ContentServiceFactory;
+import org.dspace.content.service.BundleService;
+import org.dspace.content.service.ItemService;
 import org.dspace.core.Constants;
 import org.dspace.core.Context;
-import org.dspace.handle.HandleManager;
+import org.dspace.handle.factory.HandleServiceFactory;
+import org.dspace.handle.service.HandleService;
 
 import java.io.IOException;
 import java.sql.SQLException;
+import java.util.Iterator;
+import java.util.List;
 
 /**
  * @author Andrea Schweer schweer@waikato.ac.nz for the LCoNZ Institutional Research Repositories
  * @author Alan Orth for the International Livestock Research Institute
- * @version 5.1-SNAPSHOT
+ * @version 6.1
- * @since 5.1-SNAPSHOT
+ * @since 5.1
  */
 public class FixJpgJpgThumbnails {
+    // note: static members belong to the class itself, not any one instance
+    public static ItemService itemService = ContentServiceFactory.getInstance().getItemService();
+    public static HandleService handleService =
+            HandleServiceFactory.getInstance().getHandleService();
+    public static BundleService bundleService =
+            ContentServiceFactory.getInstance().getBundleService();
 
-	public static void main(String[] args) {
+    public static void main(String[] args) {
-		String parentHandle = null;
+        String parentHandle = null;
-		if (args.length >= 1) {
+        if (args.length >= 1) {
-			parentHandle = args[0];
+            parentHandle = args[0];
-		}
+        }
 
-		Context context = null;
+        Context context = null;
-		try {
+        try {
-			context = new Context();
+            context = new Context();
-			context.turnOffAuthorisationSystem();
+            context.turnOffAuthorisationSystem();
 
-			if (StringUtils.isBlank(parentHandle)) {
+            if (StringUtils.isBlank(parentHandle)) {
-				process(context, Item.findAll(context));
+                process(context, itemService.findAll(context));
-			} else {
+            } else {
-				DSpaceObject parent = HandleManager.resolveToObject(context, parentHandle);
+                DSpaceObject parent = handleService.resolveToObject(context, parentHandle);
-				if (parent != null) {
+                if (parent != null) {
-					switch (parent.getType()) {
+                    switch (parent.getType()) {
-						case Constants.COLLECTION:
+                        case Constants.COLLECTION:
-							process(context, ((Collection) parent).getAllItems()); // getAllItems because we want to work on non-archived ones as well
+                            process(
-							break;
+                                    context,
-						case Constants.COMMUNITY:
+                                    itemService.findByCollection(context, (Collection) parent));
-							Collection[] collections = ((Community) parent).getCollections();
+                            break;
-							for (Collection collection : collections) {
+                        case Constants.COMMUNITY:
-								process(context, collection.getAllItems()); // getAllItems because we want to work on non-archived ones as well
+                            List<Collection> collections = ((Community) parent).getCollections();
-							}
+                            for (Collection collection : collections) {
-							break;
+                                process(
-						case Constants.SITE:
+                                        context,
-							process(context, Item.findAll(context));
+                                        itemService.findAllByCollection(context, collection));
-							break;
+                            }
-						case Constants.ITEM:
+                            break;
-							processItem((Item) parent);
+                        case Constants.SITE:
-							context.commit();
+                            process(context, itemService.findAll(context));
-							break;
+                            break;
-					}
+                        case Constants.ITEM:
-				}
+                            processItem(context, (Item) parent);
-			}
+                            context.commit();
-		} catch (SQLException | AuthorizeException | IOException e) {
+                            break;
-			e.printStackTrace(System.err);
+                    }
-		} finally {
+                }
-			if (context != null && context.isValid()) {
+            }
-				context.abort();
+        } catch (SQLException | AuthorizeException | IOException e) {
-			}
+            e.printStackTrace(System.err);
-		}
+        } finally {
-	}
+            if (context != null && context.isValid()) {
+                context.abort();
+            }
+        }
+    }
 
-	private static void process(Context context, ItemIterator items) throws SQLException, IOException, AuthorizeException {
+    private static void process(Context context, Iterator<Item> items)
-		while (items.hasNext()) {
+            throws SQLException, IOException, AuthorizeException {
-			Item item = items.next();
+        while (items.hasNext()) {
-			processItem(item);
+            Item item = items.next();
-			context.commit();
+            processItem(context, item);
-			item.decache();
+            itemService.update(context, item);
-		}
+        }
-	}
+    }
 
-	private static void processItem(Item item) throws SQLException, AuthorizeException, IOException {
+    private static void processItem(Context context, Item item)
-		Bundle[] thumbnailBundles = item.getBundles("THUMBNAIL");
+            throws SQLException, AuthorizeException, IOException {
-		for (Bundle thumbnailBundle : thumbnailBundles) {
+        // Some bitstreams like Infographics and Maps are large JPEGs and put in the ORIGINAL bundle
-			Bitstream[] thumbnailBundleBitstreams = thumbnailBundle.getBitstreams();
+        // on purpose so we shouldn't
-			for (Bitstream thumbnailBitstream : thumbnailBundleBitstreams) {
+        // swap them.
-				String thumbnailName = thumbnailBitstream.getName();
+        List<MetadataValue> itemTypes =
+                itemService.getMetadataByMetadataString(item, "dcterms.type");
+        for (MetadataValue itemType : itemTypes) {
+            if (itemType.getValue().equals("Infographic") || itemType.getValue().equals("Map")) {
+                System.out.println(
+                        item.getHandle() + ": item has an Infographic or Map, skipping.");
+                return;
+            }
+        }
 
-				if (thumbnailName.contains(".jpg.jpg")) {
+        List<Bundle> thumbnailBundles = item.getBundles("THUMBNAIL");
-					Bundle[] originalBundles = item.getBundles("ORIGINAL");
+        for (Bundle thumbnailBundle : thumbnailBundles) {
-					for (Bundle originalBundle : originalBundles) {
+            List<Bitstream> thumbnailBundleBitstreams = thumbnailBundle.getBitstreams();
-						Bitstream[] originalBundleBitstreams = originalBundle.getBitstreams();
+            for (Bitstream thumbnailBitstream : thumbnailBundleBitstreams) {
+                String thumbnailName = thumbnailBitstream.getName();
+                String thumbnailDescription = thumbnailBitstream.getDescription();
 
-						for(Bitstream originalBitstream : originalBundleBitstreams) {
+                // There is no point continuing if the thumbnail's description is empty or null
-							String originalName = originalBitstream.getName();
+                if (StringUtils.isEmpty(thumbnailDescription)) {
+                    continue;
+                }
 
-							//check if the original file name is the same as the thumbnail name minus the extra ".jpg"
+                if (thumbnailName.toLowerCase().contains(".jpg.jpg")) {
-							if (originalName.equals(StringUtils.removeEndIgnoreCase(thumbnailName, ".jpg")) && "Generated Thumbnail".equals(thumbnailBitstream.getDescription())) {
+                    List<Bundle> originalBundles = item.getBundles("ORIGINAL");
-								System.out.println(item.getHandle() + ": replacing " + thumbnailName + " with " + originalName);
+                    for (Bundle originalBundle : originalBundles) {
+                        List<Bitstream> originalBundleBitstreams = originalBundle.getBitstreams();
 
-								//add the original bitstream to the THUMBNAIL bundle
+                        for (Bitstream originalBitstream : originalBundleBitstreams) {
-								thumbnailBundle.addBitstream(originalBitstream);
+                            String originalName = originalBitstream.getName();
-								//remove the original bitstream from the ORIGINAL bundle
+
-								originalBundle.removeBitstream(originalBitstream);
+                            long originalBitstreamBytes = originalBitstream.getSize();
-								//remove the JpgJpg bitstream from the THUMBNAIL bundle
+
-								thumbnailBundle.removeBitstream(thumbnailBitstream);
+                            /*
-							}
+                            - check if the original file name is the same as the thumbnail name minus the extra ".jpg"
-						}
+                            - check if the thumbnail description indicates it was automatically generated
-					}
+                            - check if the original bitstream is less than ~100KiB
-				}
+                                - Note: in my tests there were 4022 items with ".jpg.jpg" thumbnails totaling 394549249
-			}
+                                  bytes for an average of about 98KiB so ~100KiB seems like a good cut off
-		}
+                            */
-	}
+                            if (originalName.equalsIgnoreCase(
+                                            StringUtils.removeEndIgnoreCase(thumbnailName, ".jpg"))
+                                    && ("Generated Thumbnail".equals(thumbnailDescription)
+                                            || "IM Thumbnail".equals(thumbnailDescription))
+                                    && originalBitstreamBytes < 100000) {
+                                System.out.println(
+                                        item.getHandle()
+                                                + ": replacing "
+                                                + thumbnailName
+                                                + " with "
+                                                + originalName);
+
+                                // add the original bitstream to the THUMBNAIL bundle
+                                bundleService.addBitstream(
+                                        context, thumbnailBundle, originalBitstream);
+                                // remove the original bitstream from the ORIGINAL bundle
+                                originalBundle.removeBitstream(originalBitstream);
+                                // remove the JpgJpg bitstream from the THUMBNAIL bundle
+                                thumbnailBundle.removeBitstream(thumbnailBitstream);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
 }

src/main/java/io/github/ilri/cgspace/scripts/FixLowQualityThumbnails.java

@@ -0,0 +1,275 @@
+/*
+ * Copyright (C) 2022 Alan Orth
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package io.github.ilri.cgspace.scripts;
+
+import org.apache.commons.lang.StringUtils;
+import org.dspace.authorize.AuthorizeException;
+import org.dspace.content.Bitstream;
+import org.dspace.content.Bundle;
+import org.dspace.content.Collection;
+import org.dspace.content.Community;
+import org.dspace.content.DSpaceObject;
+import org.dspace.content.Item;
+import org.dspace.content.factory.ContentServiceFactory;
+import org.dspace.content.service.BundleService;
+import org.dspace.content.service.ItemService;
+import org.dspace.core.Constants;
+import org.dspace.core.Context;
+import org.dspace.handle.factory.HandleServiceFactory;
+import org.dspace.handle.service.HandleService;
+
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * Fix low-quality thumbnails in a DSpace repository.
+ *
+ * <p>Search the DSpace repository for items containing bitstreams matching the following criteria:
+ *
+ * <ul>
+ *   <li>If an item has an <code>IM Thumbnail</code> and a <code>Generated Thumbnail</code> in the
+ *       <code>THUMBNAIL</code> bundle, remove the <code>Generated Thumbnail</code>.
+ *   <li>If an item has a PDF bitstream and a JPEG bitstream with description "thumbnail" in the
+ *       <code>ORIGINAL</code> bundle, remove the "thumbnail" bitstream in the ORIGINAL bundle.
+ * </ul>
+ *
+ * <p>The general idea is that we should always prefer thumbnails generated from PDFs by ImageMagick
+ * to manually uploaded JPEGs because ImageMagick Thumbnails can be regenerated with higher quality,
+ * resolution, etc. Furthermore, if there are JPEG bitstreams in the ORIGINAL bundle DSpace will
+ * automatically create ".jpg.jpg" thumbnails from them in the THUMBNAIL bundle so we should remove
+ * those as well!
+ *
+ * @author Andrea Schweer schweer@waikato.ac.nz for the LCoNZ Institutional Research Repositories
+ * @author Alan Orth for the International Livestock Research Institute
+ * @version 6.1
+ * @since 6.1
+ * @see FixJpgJpgThumbnails
+ */
+public class FixLowQualityThumbnails {
+    // note: static members belong to the class itself, not any one instance
+    public static ItemService itemService = ContentServiceFactory.getInstance().getItemService();
+    public static HandleService handleService =
+            HandleServiceFactory.getInstance().getHandleService();
+    public static BundleService bundleService =
+            ContentServiceFactory.getInstance().getBundleService();
+
+    public static void main(String[] args) {
+        String parentHandle = null;
+        if (args.length >= 1) {
+            parentHandle = args[0];
+        }
+
+        Context context = null;
+        try {
+            context = new Context();
+            context.turnOffAuthorisationSystem();
+
+            if (StringUtils.isBlank(parentHandle)) {
+                process(context, itemService.findAll(context));
+            } else {
+                DSpaceObject parent = handleService.resolveToObject(context, parentHandle);
+                if (parent != null) {
+                    switch (parent.getType()) {
+                        case Constants.COLLECTION:
+                            process(
+                                    context,
+                                    itemService.findByCollection(context, (Collection) parent));
+                            break;
+                        case Constants.COMMUNITY:
+                            List<Collection> collections = ((Community) parent).getCollections();
+                            for (Collection collection : collections) {
+                                process(
+                                        context,
+                                        itemService.findAllByCollection(context, collection));
+                            }
+                            break;
+                        case Constants.SITE:
+                            process(context, itemService.findAll(context));
+                            break;
+                        case Constants.ITEM:
+                            processItem(context, (Item) parent);
+                            context.commit();
+                            break;
+                    }
+                }
+            }
+        } catch (SQLException | AuthorizeException | IOException e) {
+            e.printStackTrace(System.err);
+        } finally {
+            if (context != null && context.isValid()) {
+                context.abort();
+            }
+        }
+    }
+
+    private static void process(Context context, Iterator<Item> items)
+            throws SQLException, IOException, AuthorizeException {
+        while (items.hasNext()) {
+            Item item = items.next();
+            processItem(context, item);
+            itemService.update(context, item);
+        }
+    }
+
+    private static void processItem(Context context, Item item)
+            throws SQLException, AuthorizeException, IOException {
+        // Set some state for the item before we iterate over the THUMBNAIL bundle
+        boolean itemHasImThumbnail = false;
+
+        // Iterate over the THUMBNAIL bundle to first identify if this item has an "IM Thumbnail"
+        List<Bundle> thumbnailBundles = item.getBundles("THUMBNAIL");
+        for (Bundle thumbnailBundle : thumbnailBundles) {
+            List<Bitstream> thumbnailBundleBitstreams = thumbnailBundle.getBitstreams();
+            for (Bitstream thumbnailBitstream : thumbnailBundleBitstreams) {
+                String thumbnailDescription = thumbnailBitstream.getDescription();
+
+                if (StringUtils.isEmpty(thumbnailDescription)) {
+                    continue;
+                }
+
+                // Check if this item has a bitstream in the THUMBNAIL bundle with description "IM
+                // Thumbnail", but only if we haven't already seen one in another iteration for this
+                // bundle.
+                if (!itemHasImThumbnail && "IM Thumbnail".equals(thumbnailDescription)) {
+                    itemHasImThumbnail = true;
+                }
+            }
+
+            // If this item has an IM Thumbnail we can be reasonably sure that there is a PDF
+            // in the ORIGINAL bundle and we don't need any other thumbnails.
+            if (itemHasImThumbnail) {
+                // Iterate over the bitstreams in the THUMBNAIL bundle again.
+                for (Bitstream thumbnailBitstream : thumbnailBundleBitstreams) {
+                    String thumbnailName = thumbnailBitstream.getName();
+                    String thumbnailDescription = thumbnailBitstream.getDescription();
+
+                    if (StringUtils.isEmpty(thumbnailDescription)) {
+                        continue;
+                    }
+
+                    // If this item has a "Generated Thumbnail" we can remove it, because those
+                    // typically come from other JPEGs in the ORIGINAL bundle and we would prefer
+                    // the IM Thumbnail generated from a PDF anyway. The DSpace-generated descri-
+                    // ption will *always* be "Generated Thumbnail".
+                    if ("Generated Thumbnail".equals(thumbnailDescription)) {
+                        System.out.print("\u001b[33m");
+                        System.out.println("Deleting (" + item.getHandle() + "):");
+                        System.out.println("> Name: »" + thumbnailName + "«");
+                        System.out.println("> Description: »" + thumbnailDescription + "«");
+                        System.out.print("\u001b[0m");
+
+                        // Remove the "Generated Thumbnail" bitstream from the THUMBNAIL bundle
+                        thumbnailBundle.removeBitstream(thumbnailBitstream);
+
+                        // If this item has a bitstream with the word "thumbnail" in it then we can
+                        // remove it because we already know this item has an IM Thumbnail and we
+                        // prefer that one.
+                    } else if (thumbnailDescription.toLowerCase().contains("thumbnail")
+                            && !"IM Thumbnail".equals(thumbnailDescription)) {
+                        System.out.print("\u001b[33m");
+                        System.out.println("Deleting (" + item.getHandle() + "):");
+                        System.out.println("> Name: »" + thumbnailName + "«");
+                        System.out.println("> Description: »" + thumbnailDescription + "«");
+                        System.out.print("\u001b[0m");
+
+                        // Remove the "thumbnail" bitstream from the THUMBNAIL bundle
+                        thumbnailBundle.removeBitstream(thumbnailBitstream);
+
+                        // Otherwise skip it because it might be something uploaded manually, like
+                        // a thumbnail for a journal or a limited access item.
+                    } else {
+                        System.out.print("\u001b[34m");
+                        System.out.println("Skipping (" + item.getHandle() + "):");
+                        System.out.println("> Name: »" + thumbnailName + "«");
+                        System.out.println("> Description: »" + thumbnailDescription + "«");
+                        System.out.print("\u001b[0m");
+                    }
+
+                    // Print a blank line
+                    System.out.println();
+                }
+            }
+        }
+
+        // Set some state before we iterate over the ORIGINAL bundle
+        boolean itemHasOriginalPdfBitstream = false;
+        boolean itemHasOriginalJpegBitstream = false;
+
+        // Iterate over the ORIGINAL bundle to delete manually-uploaded JPEG
+        // bitstreams labeled "Thumbnail" whenever we have a PDF because they
+        // don't belong in the ORIGINAL bundle and DSpace will automatically
+        // create a better thumbnail from the PDF anyway.
+        List<Bundle> originalBundles = item.getBundles("ORIGINAL");
+        for (Bundle originalBundle : originalBundles) {
+            List<Bitstream> originalBundleBitstreams = originalBundle.getBitstreams();
+            for (Bitstream originalBitstream : originalBundleBitstreams) {
+                String originalFormat = originalBitstream.getFormat(context).getMIMEType();
+
+                // Check if this item has a PDF bitstream in the ORIGINAL bundle,
+                // but only if we haven't already seen one in another iteration
+                // for this bundle. DSpace will return "format application/pdf"
+                // for the MIME type.
+                if (!itemHasOriginalPdfBitstream && originalFormat.contains("application/pdf")) {
+                    itemHasOriginalPdfBitstream = true;
+                }
+
+                // Check if this item has a JPEG bitstream in the ORIGINAL bundle,
+                // but only if we haven't already seen one in another iteration
+                // for this bundle. DSpace will return "format image/jpeg" for
+                // the MIME type.
+                if (!itemHasOriginalJpegBitstream && originalFormat.contains("image/jpeg")) {
+                    itemHasOriginalJpegBitstream = true;
+                }
+            }
+
+            // Check if we found a PDF *and* a JPEG in this item's ORIGINAL
+            // bundle.
+            if (itemHasOriginalPdfBitstream && itemHasOriginalJpegBitstream) {
+                // Yes! Now iterate over the bitstreams in the ORIGINAL bundle
+                // again to see if the JPEG is a manually uploaded "Thumbnail"
+                for (Bitstream originalBitstream : originalBundleBitstreams) {
+                    String originalName = originalBitstream.getName();
+                    String originalDescription = originalBitstream.getDescription();
+                    String originalFormat = originalBitstream.getFormat(context).getMIMEType();
+
+                    if (StringUtils.isEmpty(originalDescription)) {
+                        continue;
+                    }
+
+                    /*
+                    - check if the bitstream is a JPEG based on its MIME Type
+                    - check if the bitstream's name or description is "Thumbnail"
+                    */
+                    if (originalFormat.toLowerCase().contains("image/jpeg")
+                            && (originalName.toLowerCase().contains("thumbnail")
+                                    || originalDescription.toLowerCase().contains("thumbnail"))) {
+                        System.out.print("\u001b[33m");
+                        System.out.println("Removing (" + item.getHandle() + "):");
+                        System.out.println("> Name: »" + originalName + "«");
+                        System.out.println("> Description: »" + originalDescription + "«");
+                        System.out.print("\u001b[0m");
+
+                        // Remove the original bitstream from the ORIGINAL bundle
+                        originalBundle.removeBitstream(originalBitstream);
+
+                    } else {
+                        System.out.print("\u001b[34m");
+                        System.out.println("Skipping (" + item.getHandle() + "):");
+                        System.out.println("> Name: »" + originalName + "«");
+                        System.out.println("> Description: »" + originalDescription + "«");
+                        System.out.print("\u001b[0m");
+                    }
+
+                    // Print a blank line
+                    System.out.println();
+                }
+            }
+        }
+    }
+}

src/main/java/io/github/ilri/cgspace/scripts/README.md

@@ -0,0 +1,42 @@
+# Scripts
+Java-based helpers used on the [CGSpace](https://cgspace.cgiar.org) institutional repository:
+
+- **FixJpgJpgThumbnails**: fix low-quality ".jpg.jpg" thumbnails by replacing them with their originals
+- **FixLowQualityThumbnails**: remove low-quality thumbnails when PDF bitstreams are present
+
+Tested on DSpace 6.3. Read more about the [DSpace curation system](https://wiki.lyrasis.org/display/DSDOC6x/Curation+System).
+
+## Build and Install
+
+### Integrate into DSpace Build
+To use these curation tasks in a DSpace project add the following dependency to `dspace/modules/additions/pom.xml`:
+
+```xml
+<dependency>
+  <groupId>io.github.ilri.cgspace</groupId>
+  <artifactId>cgspace-java-helpers</artifactId>
+  <version>6.1-SNAPSHOT</version>
+</dependency>
+```
+
+The jar will be copied to all DSpace applications.
+
+### Manual Build and Install
+To build the standalone jar:
+
+```console
+$ mvn package
+```
+
+Copy the resulting jar to the DSpace `lib` directory:
+
+```console
+$ cp target/cgspace-java-helpers-6.1-SNAPSHOT.jar ~/dspace/lib/
+```
+
+## Invocation
+The scripts take only one argument, which is a community, collection, or item:
+
+```console
+$ dspace dsrun io.github.ilri.cgspace.scripts.FixJpgJpgThumbnails 10568/83389
+```