Downloading a File

To download a file, you need a TeaOperation that returns a Datasource pointing to the file you want to download. While developing the UI, you must invoke the TeaOperation using the teaObjectService.

1. The downloadLog() method defines a TeaOperation that returns a Datasource that points to the file you want to download. The sample downloads the license file shipped with the product.

   @Customize(value = "label:DownloadLicense;internal:true")
   @TeaOperation(name = "downloadLicense", description = "Download Tomcat license file", 
   internal = true, methodType = MethodType.UPDATE)
   public DataSource downloadLog(){
      return new FileDataSource(this.tomcatAgentConfig.getInstallationDir()+ "/LICENSE");
   }
   

2. While developing the UI, invoke the TeaOperation using the teaObjectService.

   $scope.downloadFile = function(view) {
                 teaObjectService.invoke({
                        agentType : $scope.object.type.agentType,
                        objectType : $scope.object.type.name,
                        agentId : $scope.object.agentId,
                        objectKey : $scope.object.key,
                        operation : "downloadLicense",
                        methodType : "UPDATE",
                        params : {}
                 }).then(function(data) {
                        var url = document.location.origin + '/tea/' + data;
                        if(view){
                              document.location.href = url;
                        } else {
                              document.location.href = url +"?download=true";
                        }
                 }, function(error) {
                        $scope.errorMessage = error.message;
                        if (error && error.params) {
                              for ( var param in $scope.params) {
                                     if (typeof $scope.params[param] === 'object') {
                                            $scope.params[param].error = error.params[param];
                                     }
                              }
                        }
                 });
          }