[GH-309] Allow running in development mode without configuring mail s…

…erver.

src/main/java/cz/cvut/kbss/termit/service/mail/Postman.java

@@ -19,6 +19,7 @@
 
 import cz.cvut.kbss.termit.exception.PostmanException;
 import cz.cvut.kbss.termit.exception.ValidationException;
+import cz.cvut.kbss.termit.util.Utils;
 import jakarta.mail.MessagingException;
 import jakarta.mail.internet.InternetAddress;
 import jakarta.mail.internet.MimeMessage;
@@ -65,7 +66,12 @@ public Postman(Environment env, @Autowired(required = false) JavaMailSender mail
 
     @PostConstruct
     public void postConstruct() {
-        if(mailSender == null) {
+        if (mailSender == null) {
+            if (Utils.isDevelopmentProfile(env.getActiveProfiles())) {
+                LOG.warn(
+                        "Mail server not configured but running in development mode. Will not be able to send messages.");
+                return;
+            }
             throw new ValidationException("Mail server not configured.");
         }
     }
@@ -86,7 +92,8 @@ public void sendMessage(Message message) {
 
             final MimeMessage mail = mailSender.createMimeMessage();
             final MimeMessageHelper helper = new MimeMessageHelper(mail, true);
-            helper.setFrom(new InternetAddress(sender != null ? sender : senderUsername, FROM_NICKNAME, StandardCharsets.UTF_8.toString()));
+            helper.setFrom(new InternetAddress(sender != null ? sender : senderUsername, FROM_NICKNAME,
+                                               StandardCharsets.UTF_8.toString()));
             helper.setTo(message.getRecipients().toArray(new String[]{}));
             helper.setSubject(message.getSubject());
             helper.setText(message.getContent(), true);

src/main/java/cz/cvut/kbss/termit/util/Constants.java

@@ -153,6 +153,23 @@ public class Constants {
                     "Notation", "Example", "References")
     );
 
+
+    /**
+     * the maximum amount of data to buffer when sending messages to a WebSocket session
+     */
+    public static final int WEBSOCKET_SEND_BUFFER_SIZE_LIMIT = Integer.MAX_VALUE;
+
+    /**
+     * Set the maximum time allowed in milliseconds after the WebSocket connection is established
+     * and before the first sub-protocol message is received.
+     */
+    public static final int WEBSOCKET_TIME_TO_FIRST_MESSAGE = 15 * 1000 /* 15s */;
+
+    /**
+     * Development Spring profile.
+     */
+    public static final String DEVELOPMENT_PROFILE = "development";
+
     private Constants() {
         throw new AssertionError();
     }
@@ -247,32 +264,4 @@ private QueryParams() {
             throw new AssertionError();
         }
     }
-
-    public static final class DebouncingGroups {
-
-        /**
-         * Text analysis of all terms in specific vocabulary
-         */
-        public static final String TEXT_ANALYSIS_VOCABULARY_TERMS_ALL_DEFINITIONS = "TEXT_ANALYSIS_VOCABULARY_TERMS_ALL_DEFINITIONS";
-
-        /**
-         * Text analysis of all vocabularies
-         */
-        public static final String TEXT_ANALYSIS_VOCABULARY = "TEXT_ANALYSIS_VOCABULARY";
-
-        private DebouncingGroups() {
-            throw new AssertionError();
-        }
-    }
-
-    /**
-     * the maximum amount of data to buffer when sending messages to a WebSocket session
-     */
-    public static final int WEBSOCKET_SEND_BUFFER_SIZE_LIMIT = Integer.MAX_VALUE;
-
-    /**
-     * Set the maximum time allowed in milliseconds after the WebSocket connection is established
-     * and before the first sub-protocol message is received.
-     */
-    public static final int WEBSOCKET_TIME_TO_FIRST_MESSAGE = 15 * 1000 /* 15s */;
 }

src/main/java/cz/cvut/kbss/termit/util/Utils.java

@@ -44,6 +44,7 @@
 import java.time.Instant;
 import java.time.temporal.ChronoUnit;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
@@ -194,13 +195,20 @@ public static String getVocabularyIri(final Set<String> conceptUris, String term
         if (conceptUris.isEmpty()) {
             throw new IllegalArgumentException("No namespace candidate.");
         }
-
         final Iterator<String> i = conceptUris.iterator();
-
         final String conceptUri = i.next();
+        final String namespace = extractNamespace(termSeparator, conceptUri);
+        for (final String s : conceptUris) {
+            if (!s.startsWith(namespace)) {
+                throw new IllegalArgumentException(
+                        "Not all Concept IRIs have the same namespace: " + conceptUri + " vs. " + namespace);
+            }
+        }
+        return namespace;
+    }
 
+    private static String extractNamespace(String termSeparator, String conceptUri) {
         final String separator;
-
         if (conceptUri.lastIndexOf(termSeparator) > 0) {
             separator = termSeparator;
         } else if (conceptUri.lastIndexOf("#") > 0) {
@@ -210,16 +218,7 @@ public static String getVocabularyIri(final Set<String> conceptUris, String term
         } else {
             throw new IllegalArgumentException("The IRI does not have a proper format: " + conceptUri);
         }
-
-        final String namespace = conceptUri.substring(0, conceptUri.lastIndexOf(separator));
-
-        for (final String s : conceptUris) {
-            if (!s.startsWith(namespace)) {
-                throw new IllegalArgumentException(
-                        "Not all Concept IRIs have the same namespace: " + conceptUri + " vs. " + namespace);
-            }
-        }
-        return namespace;
+        return conceptUri.substring(0, conceptUri.lastIndexOf(separator));
     }
 
     /**
@@ -402,15 +401,25 @@ public static void pruneBlankTranslations(MultilingualString str) {
 
     /**
      * Converts the map into a string
-     * @return Empty string when the map is {@code null}, otherwise the String in format
-     * {@code {key=value, key=value}}
+     *
+     * @return Empty string when the map is {@code null}, otherwise the String in format {@code {key=value, key=value}}
      */
     public static <A, B> String mapToString(Map<A, B> map) {
         if (map == null) {
             return "";
         }
         return map.keySet().stream()
-                           .map(key -> key + "=" + map.get(key))
-                           .collect(Collectors.joining(", ", "{", "}"));
+                  .map(key -> key + "=" + map.get(key))
+                  .collect(Collectors.joining(", ", "{", "}"));
+    }
+
+    /**
+     * Checks whether the {@code development} profile is active.
+     *
+     * @param activeProfiles Array of active profiles
+     * @return {@code true} if the {@code development} profile is active, {@code false} otherwise
+     */
+    public static boolean isDevelopmentProfile(String[] activeProfiles) {
+        return Arrays.binarySearch(activeProfiles, Constants.DEVELOPMENT_PROFILE) != -1;
     }
 }