5 files changed, 23 insertions, 8 deletions
diff --git a/server/sonar-webserver-webapi/src/main/java/org/sonar/server/newcodeperiod/ws/SetAction.java b/server/sonar-webserver-webapi/src/main/java/org/sonar/server/newcodeperiod/ws/SetAction.java
index 3837853b3f4..0394cc27a70 100644
--- a/server/sonar-webserver-webapi/src/main/java/org/sonar/server/newcodeperiod/ws/SetAction.java
+++ b/server/sonar-webserver-webapi/src/main/java/org/sonar/server/newcodeperiod/ws/SetAction.java
@@ -20,9 +20,11 @@
 package org.sonar.server.newcodeperiod.ws;
 
 import com.google.common.base.Preconditions;
+import java.util.Arrays;
 import java.util.EnumSet;
 import java.util.Locale;
 import java.util.Set;
+import java.util.stream.Collectors;
 import javax.annotation.Nullable;
 import org.sonar.api.server.ws.Request;
 import org.sonar.api.server.ws.Response;
@@ -93,7 +95,13 @@ public class SetAction implements NewCodePeriodsWsAction {
       .setDescription("Branch key");
     action.createParam(PARAM_TYPE)
       .setRequired(true)
-      .setDescription("Type");
+      .setDescription("Type<br/>" +
+        "Only new code periods of the following types are allowed:" +
+        "<ul>" +
+        Arrays.stream(NewCodePeriodType.values())
+          .map(newCodePeriodType -> "<li>" + newCodePeriodType.name() + "</li>")
+          .collect(Collectors.joining()) +
+        "</ul>");
     action.createParam(PARAM_VALUE)
       .setDescription("Value");
   }
@@ -139,7 +147,7 @@ public class SetAction implements NewCodePeriodsWsAction {
   }
 
   private void setValue(DbSession dbSession, NewCodePeriodDto dto, NewCodePeriodType type, @Nullable ComponentDto projectBranch,
-    @Nullable String branch, @Nullable String value) {
+                        @Nullable String branch, @Nullable String value) {
     switch (type) {
       case PREVIOUS_VERSION:
         Preconditions.checkArgument(value == null, "Unexpected value for type '%s'", type);
diff --git a/server/sonar-webserver-webapi/src/main/java/org/sonar/server/newcodeperiod/ws/ShowAction.java b/server/sonar-webserver-webapi/src/main/java/org/sonar/server/newcodeperiod/ws/ShowAction.java
index 86f95269dfe..c46343aca4b 100644
--- a/server/sonar-webserver-webapi/src/main/java/org/sonar/server/newcodeperiod/ws/ShowAction.java
+++ b/server/sonar-webserver-webapi/src/main/java/org/sonar/server/newcodeperiod/ws/ShowAction.java
@@ -42,7 +42,7 @@ import static com.google.common.base.Preconditions.checkArgument;
 import static java.lang.String.format;
 import static org.sonar.server.component.ComponentFinder.ParamNames.PROJECT_ID_AND_KEY;
 import static org.sonar.server.ws.WsUtils.writeProtobuf;
-import static org.sonarqube.ws.NewCodePeriods.*;
+import static org.sonarqube.ws.NewCodePeriods.ShowWSResponse;
 
 public class ShowAction implements NewCodePeriodsWsAction {
   private static final String PARAM_BRANCH = "branch";
@@ -70,7 +70,7 @@ public class ShowAction implements NewCodePeriodsWsAction {
         "<li>'Administer' rights on the specified component</li>" +
         "</ul>")
       .setSince("8.0")
-      .setResponseExample(getClass().getResource("show_new_code_period-example.json"))
+      .setResponseExample(getClass().getResource("show-example.json"))
       .setHandler(this);
 
     action.createParam(PARAM_PROJECT)
@@ -90,7 +90,7 @@ public class ShowAction implements NewCodePeriodsWsAction {
 
     try (DbSession dbSession = dbClient.openSession(false)) {
 
-      ComponentDto projectBranch = null;
+      ComponentDto projectBranch;
       String projectUuid = null;
       String branchUuid = null;
 
diff --git a/server/sonar-webserver-webapi/src/main/resources/org/sonar/server/newcodeperiods/ws/list-example.json b/server/sonar-webserver-webapi/src/main/resources/org/sonar/server/newcodeperiod/ws/list-example.json
index 537c0ecebfd..537c0ecebfd 100644
--- a/server/sonar-webserver-webapi/src/main/resources/org/sonar/server/newcodeperiods/ws/list-example.json
+++ b/server/sonar-webserver-webapi/src/main/resources/org/sonar/server/newcodeperiod/ws/list-example.json
diff --git a/server/sonar-webserver-webapi/src/main/resources/org/sonar/server/newcodeperiod/ws/show-example.json b/server/sonar-webserver-webapi/src/main/resources/org/sonar/server/newcodeperiod/ws/show-example.json
new file mode 100644
index 00000000000..59786307e94
--- /dev/null
+++ b/server/sonar-webserver-webapi/src/main/resources/org/sonar/server/newcodeperiod/ws/show-example.json
@@ -0,0 +1,6 @@
+{
+  "projectKey": "org.sonarsource.project:project",
+  "branchKey": "branch-1.1",
+  "type": "PREVIOUS_VERSION",
+  "inherited": true
+}
diff --git a/sonar-ws/src/main/protobuf/ws-newcodeperiods.proto b/sonar-ws/src/main/protobuf/ws-newcodeperiods.proto
index 7bf16771ac9..73b7fdc5350 100644
--- a/sonar-ws/src/main/protobuf/ws-newcodeperiods.proto
+++ b/sonar-ws/src/main/protobuf/ws-newcodeperiods.proto
@@ -40,7 +40,8 @@ message ListWSResponse {
 }
 
 enum NewCodePeriodType {
-    PREVIOUS_VERSION = 0;
-    NUMBER_OF_DAYS = 1;
-    SPECIFIC_ANALYSIS = 2;
+    UNKNOWN = 0;
+    PREVIOUS_VERSION = 1;
+    NUMBER_OF_DAYS = 2;
+    SPECIFIC_ANALYSIS = 3;
 }