(refs #121)Create WebHookPayload only when web hook has been registered.

src/main/scala/app/RepositorySettingsController.scala

@@ -137,13 +137,16 @@ trait RepositorySettingsControllerBase extends ControllerBase with FlashMapSuppo
         .setMaxCount(3)
         .call.iterator.asScala.map(new CommitInfo(_))
 
-      callWebHook(repository.owner, repository.name,
-        WebHookPayload(
-          git,
-          "refs/heads/" + repository.repository.defaultBranch,
-          repository,
-          commits.toList,
-          getAccountByUserName(repository.owner).get))
+      val webHookURLs = getWebHookURLs(repository.owner, repository.name)
+      if(webHookURLs.nonEmpty){
+        callWebHook(repository.owner, repository.name, webHookURLs,
+          WebHookPayload(
+            git,
+            "refs/heads/" + repository.repository.defaultBranch,
+            repository,
+            commits.toList,
+            getAccountByUserName(repository.owner).get))
+      }
 
       flash += "info" -> "Test payload deployed!"
     }

src/main/scala/service/WebHookService.scala

@@ -29,7 +29,7 @@ trait WebHookService {
   def deleteWebHookURL(owner: String, repository: String, url :String): Unit =
     Query(WebHooks).filter(_.byPrimaryKey(owner, repository, url)).delete
 
-  def callWebHook(owner: String, repository: String, payload: WebHookPayload): Unit = {
+  def callWebHook(owner: String, repository: String, webHookURLs: List[WebHook], payload: WebHookPayload): Unit = {
     import org.json4s._
     import org.json4s.jackson.Serialization
     import org.json4s.jackson.Serialization.{read, write}
@@ -41,8 +41,6 @@ trait WebHookService {
     logger.debug("start callWebHook")
     implicit val formats = Serialization.formats(NoTypeHints)
 
-    val webHookURLs = getWebHookURLs(owner, repository)
-
     if(webHookURLs.nonEmpty){
       val json = write(payload)
       val httpClient = new DefaultHttpClient()

src/main/scala/servlet/GitRepositoryServlet.scala

@@ -129,14 +129,17 @@ class CommitLogHook(owner: String, repository: String, userName: String, baseURL
         }
 
         // call web hook
-        val payload = WebHookPayload(
-          git,
-          command.getRefName,
-          getRepository(owner, repository, baseURL).get,
-          newCommits,
-          getAccountByUserName(owner).get)
+        val webHookURLs = getWebHookURLs(owner, repository)
+        if(webHookURLs.nonEmpty){
+          val payload = WebHookPayload(
+            git,
+            command.getRefName,
+            getRepository(owner, repository, baseURL).get,
+            newCommits,
+            getAccountByUserName(owner).get)
 
-        callWebHook(owner, repository, payload)
+          callWebHook(owner, repository, webHookURLs, payload)
+        }
       }
     }
     // update repository last modified time.