Add support for changing phone numbers

service/src/main/java/org/whispersystems/textsecuregcm/entities/ChangePhoneNumberRequest.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2013-2021 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.whispersystems.textsecuregcm.entities;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import javax.annotation.Nullable;
+import javax.validation.constraints.NotBlank;
+
+public class ChangePhoneNumberRequest {
+
+  @JsonProperty
+  @NotBlank
+  final String number;
+
+  @JsonProperty
+  @NotBlank
+  final String code;
+
+  @JsonProperty("reglock")
+  @Nullable
+  final String registrationLock;
+
+  @JsonCreator
+  public ChangePhoneNumberRequest(@JsonProperty("number") final String number,
+      @JsonProperty("code") final String code,
+      @JsonProperty("reglock") @Nullable final String registrationLock) {
+
+    this.number = number;
+    this.code = code;
+    this.registrationLock = registrationLock;
+  }
+
+  public String getNumber() {
+    return number;
+  }
+
+  public String getCode() {
+    return code;
+  }
+
+  @Nullable
+  public String getRegistrationLock() {
+    return registrationLock;
+  }
+}