Add command to get an attachment (#1080)

[signal-cli] / src / main / java / org / asamk / signal / json / JsonStreamSerializer.java

diff --git a/src/main/java/org/asamk/signal/json/JsonStreamSerializer.java b/src/main/java/org/asamk/signal/json/JsonStreamSerializer.java
new file mode 100644 (file)
index 0000000..6eb359c
--- /dev/null
+++ b/src/main/java/org/asamk/signal/json/JsonStreamSerializer.java
@@ -0,0 +1,20 @@
+package org.asamk.signal.json;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.SerializerProvider;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+public class JsonStreamSerializer extends JsonSerializer<InputStream> {
+
+    @Override
+    public void serialize(
+            final InputStream value,
+            final JsonGenerator jsonGenerator,
+            final SerializerProvider serializers
+    ) throws IOException {
+        jsonGenerator.writeBinary(value, -1);
+    }
+}