Merge pull request #355 from metafacture/354-base64

Add to_base64 function #354
metafacture · Jun 4, 2024 · c403afa · c403afa
2 parents f4f0900 + aa8f647
commit c403afa
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diff --git a/README.md b/README.md
@@ -833,6 +833,16 @@ to_json("<sourceField>"[, pretty: "<boolean>"][, error_string: "<errorValue>"])
 
 [Java Code](https://github.com/search?type=code&q=repo:metafacture/metafacture-fix+path:FixMethod.java+"+to_json+{")
 
+##### `to_base64`
+
+Replaces the value with its Base64 encoding.
+
+```perl
+to_base64("<sourceField>")
+```
+
+[Java Code](https://github.com/search?type=code&q=repo:metafacture/metafacture-fix+path:FixMethod.java+"+to_base64+{")
+
 ##### `trim`
 
 Deletes whitespace at the beginning and the end of a field value.

diff --git a/metafix/src/main/java/org/metafacture/metafix/FixMethod.java b/metafix/src/main/java/org/metafacture/metafix/FixMethod.java
@@ -27,6 +27,7 @@
 import java.io.File;
 import java.io.IOException;
 import java.util.Arrays;
+import java.util.Base64;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -626,6 +627,12 @@ public void apply(final Metafix metafix, final Record record, final List<String>
             );
         }
     },
+    to_base64 {
+        @Override
+        public void apply(final Metafix metafix, final Record record, final List<String> params, final Map<String, String> options) {
+            record.transform(params.get(0), s -> Base64.getEncoder().encodeToString(s.getBytes()));
+        }
+    },
     to_json {
         @Override
         public void apply(final Metafix metafix, final Record record, final List<String> params, final Map<String, String> options) {

diff --git a/metafix/src/test/java/org/metafacture/metafix/MetafixMethodTest.java b/metafix/src/test/java/org/metafacture/metafix/MetafixMethodTest.java
@@ -4062,4 +4062,26 @@ public void shouldUriEncodePathSegmentWithoutSafeChars() {
         );
     }
 
+    @Test
+    public void shouldTransformStringToBase64() {
+        MetafixTestHelpers.assertFix(streamReceiver, Arrays.asList(
+                "to_base64('data.title')"
+            ),
+            i -> {
+                i.startRecord("1");
+                i.startEntity("data");
+                i.literal("title", "this-is-a-test");
+                i.endEntity();
+                i.endRecord();
+            },
+            o -> {
+                o.get().startRecord("1");
+                o.get().startEntity("data");
+                o.get().literal("title", "dGhpcy1pcy1hLXRlc3Q=");
+                o.get().endEntity();
+                o.get().endRecord();
+            }
+        );
+    }
+
 }