Introduce "service identifiers"

service/src/main/java/org/whispersystems/textsecuregcm/util/ServiceIdentifierAdapter.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2023 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.whispersystems.textsecuregcm.util;
+
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import java.io.IOException;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import org.whispersystems.textsecuregcm.identity.ServiceIdentifier;
+import org.whispersystems.textsecuregcm.identity.AciServiceIdentifier;
+import org.whispersystems.textsecuregcm.identity.PniServiceIdentifier;
+
+public class ServiceIdentifierAdapter {
+
+  public static class ServiceIdentifierSerializer extends JsonSerializer<ServiceIdentifier> {
+
+    @Override
+    public void serialize(final ServiceIdentifier identifier, final JsonGenerator jsonGenerator, final SerializerProvider serializers)
+        throws IOException {
+
+      jsonGenerator.writeString(identifier.toServiceIdentifierString());
+    }
+  }
+
+  public static class AciServiceIdentifierDeserializer extends JsonDeserializer<AciServiceIdentifier> {
+
+    @Override
+    public AciServiceIdentifier deserialize(final JsonParser parser, final DeserializationContext context)
+        throws IOException {
+
+      return AciServiceIdentifier.valueOf(parser.getValueAsString());
+    }
+  }
+
+  public static class PniServiceIdentifierDeserializer extends JsonDeserializer<PniServiceIdentifier> {
+
+    @Override
+    public PniServiceIdentifier deserialize(final JsonParser parser, final DeserializationContext context)
+        throws IOException {
+
+      return PniServiceIdentifier.valueOf(parser.getValueAsString());
+    }
+  }
+
+  public static class ServiceIdentifierDeserializer extends JsonDeserializer<ServiceIdentifier> {
+
+    @Override
+    public ServiceIdentifier deserialize(final JsonParser parser, final DeserializationContext context)
+        throws IOException {
+
+      return ServiceIdentifier.valueOf(parser.getValueAsString());
+    }
+  }
+}