[ 
https://issues.apache.org/jira/browse/BEAM-13429?focusedWorklogId=708298&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-708298
 ]

ASF GitHub Bot logged work on BEAM-13429:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 13/Jan/22 13:45
            Start Date: 13/Jan/22 13:45
    Worklog Time Spent: 10m 
      Work Description: KhaninArtur commented on a change in pull request 
#16482:
URL: https://github.com/apache/beam/pull/16482#discussion_r783963670



##########
File path: playground/backend/internal/preparers/go_preparators_test.go
##########
@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and

Review comment:
       ditto

##########
File path: playground/backend/internal/preparers/java_preparators.go
##########
@@ -13,11 +13,10 @@
 // See the License for the specific language governing permissions and

Review comment:
       ditto

##########
File path: playground/backend/internal/preparers/java_preparators_test.go
##########
@@ -88,25 +88,39 @@ func Test_replace(t *testing.T) {
        }
 }
 
-func TestGetJavaPreparators(t *testing.T) {
+func TestGetJavaPreparers(t *testing.T) {
        type args struct {
-               filePath string
+               filePath   string
+               isUnitTest bool
+               isKata     bool
        }
        tests := []struct {
                name string
                args args
                want int
        }{
                {
-                       name: "all success",
-                       args: args{"MOCK_FILEPATH"},
-                       want: 4,
+                       name: "Test number of preparers for code",
+                       args: args{"MOCK_FILEPATH", false, false},
+                       want: 2,
+               },
+               {
+                       name: "Test number of preparers for unit test",
+                       args: args{"MOCK_FILEPATH", false, false},
+                       want: 2,
+               },
+               {
+                       name: "Test number of preparers for kata",
+                       args: args{"MOCK_FILEPATH", false, false},

Review comment:
       Seems like you should put true as a third argument

##########
File path: playground/backend/internal/preparers/python_preparators.go
##########
@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and

Review comment:
       ditto

##########
File path: playground/backend/internal/preparers/go_preparators.go
##########
@@ -13,33 +13,61 @@
 // See the License for the specific language governing permissions and

Review comment:
       Could you please also rename the file to `go_preparers.go`?

##########
File path: playground/backend/internal/preparers/java_preparators_test.go
##########
@@ -13,7 +13,7 @@
 // See the License for the specific language governing permissions and

Review comment:
       ditto

##########
File path: playground/backend/internal/preparers/java_preparators_test.go
##########
@@ -88,25 +88,39 @@ func Test_replace(t *testing.T) {
        }
 }
 
-func TestGetJavaPreparators(t *testing.T) {
+func TestGetJavaPreparers(t *testing.T) {
        type args struct {
-               filePath string
+               filePath   string
+               isUnitTest bool
+               isKata     bool
        }
        tests := []struct {
                name string
                args args
                want int
        }{
                {
-                       name: "all success",
-                       args: args{"MOCK_FILEPATH"},
-                       want: 4,
+                       name: "Test number of preparers for code",
+                       args: args{"MOCK_FILEPATH", false, false},
+                       want: 2,
+               },
+               {
+                       name: "Test number of preparers for unit test",
+                       args: args{"MOCK_FILEPATH", false, false},

Review comment:
       Seems like you should put `true` as a second argument

##########
File path: playground/backend/internal/preparers/preparator.go
##########
@@ -13,10 +13,38 @@
 // See the License for the specific language governing permissions and

Review comment:
       ditto

##########
File path: playground/backend/internal/preparers/java_preparators.go
##########
@@ -40,47 +38,85 @@ const (
        publicClassNamePattern            = "public class (.*?) 
[{|implements(.*)]"
 )
 
-// GetJavaPreparators returns preparation methods that should be applied to 
Java code
-func GetJavaPreparators(filePath string) *[]Preparator {
-       removePublicClassPreparator := Preparator{
+//JavaPreparersBuilder facet of PreparersBuilder
+type JavaPreparersBuilder struct {
+       PreparersBuilder
+}
+
+//JavaPreparers chains to type *PreparersBuilder and returns a 
*JavaPreparersBuilder
+func (builder *PreparersBuilder) JavaPreparers() *JavaPreparersBuilder {
+       return &JavaPreparersBuilder{*builder}
+}
+
+//WithPublicClassRemover adds preparer to remove public class
+func (builder *JavaPreparersBuilder) WithPublicClassRemover() 
*JavaPreparersBuilder {
+       removePublicClassPreparer := Preparer{
                Prepare: removePublicClassModifier,
-               Args:    []interface{}{filePath, 
classWithPublicModifierPattern, classWithoutPublicModifierPattern},
+               Args:    []interface{}{builder.filePath, 
classWithPublicModifierPattern, classWithoutPublicModifierPattern},
        }
-       changePackagePreparator := Preparator{
+       builder.AddPreparer(removePublicClassPreparer)
+       return builder
+}
+
+//WithPackageChanger adds preparer to change package
+func (builder *JavaPreparersBuilder) WithPackageChanger() 
*JavaPreparersBuilder {
+       changePackagePreparer := Preparer{
                Prepare: changePackage,
-               Args:    []interface{}{filePath, packagePattern, 
importStringPattern},
+               Args:    []interface{}{builder.filePath, packagePattern, 
importStringPattern},
        }
-       removePackagePreparator := Preparator{
+       builder.AddPreparer(changePackagePreparer)
+       return builder
+}
+
+//WithPackageRemover adds preparer to remove package
+func (builder *JavaPreparersBuilder) WithPackageRemover() 
*JavaPreparersBuilder {
+       removePackagePreparer := Preparer{
                Prepare: removePackage,
-               Args:    []interface{}{filePath, packagePattern, 
newLinePattern},
+               Args:    []interface{}{builder.filePath, packagePattern, 
newLinePattern},
        }
-       unitTestFileNameChanger := Preparator{
+       builder.AddPreparer(removePackagePreparer)
+       return builder
+}
+
+//WithFileNameChanger adds preparer to remove package
+func (builder *JavaPreparersBuilder) WithFileNameChanger() 
*JavaPreparersBuilder {
+       unitTestFileNameChanger := Preparer{
                Prepare: changeJavaTestFileName,
-               Args:    []interface{}{filePath},
+               Args:    []interface{}{builder.filePath},
+       }
+       builder.AddPreparer(unitTestFileNameChanger)
+       return builder
+}
+
+// GetJavaPreparers returns preparation methods that should be applied to Java 
code
+func GetJavaPreparers(builder *PreparersBuilder, isUnitTest bool, isKata bool) 
{
+       if !isUnitTest && !isKata {
+               builder.JavaPreparers().
+                       WithPublicClassRemover().
+                       WithPackageChanger()
+       }
+       if isUnitTest {
+               builder.JavaPreparers().
+                       WithPackageChanger().
+                       WithFileNameChanger()
+       }
+       if isKata {
+               builder.JavaPreparers().
+                       WithPublicClassRemover().
+                       WithPackageRemover()
        }
-       return &[]Preparator{removePublicClassPreparator, 
changePackagePreparator, removePackagePreparator, unitTestFileNameChanger}
 }
 
 //changePackage changes the 'package' to 'import' and the last directory in 
the package value to '*'
 func changePackage(args ...interface{}) error {
-       validationResults := args[3].(*sync.Map)
-       isKata, ok := validationResults.Load(validators.KatasValidatorName)
-       if ok && isKata.(bool) {
-               return nil
-       }
        err := replace(args...)
        return err
 }
 
 //removePackage remove the package line in the katas.
 func removePackage(args ...interface{}) error {
-       validationResults := args[3].(*sync.Map)
-       isKata, ok := validationResults.Load(validators.KatasValidatorName)
-       if ok && isKata.(bool) {
-               err := replace(args...)
-               return err
-       }
-       return nil
+       err := replace(args...)
+       return err
 }

Review comment:
       Do we even need this function if we can directly use `replace`?




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 708298)
    Time Spent: 1h 20m  (was: 1h 10m)

>  [Playground] Improve preparators by the introducing of builder
> ---------------------------------------------------------------
>
>                 Key: BEAM-13429
>                 URL: https://issues.apache.org/jira/browse/BEAM-13429
>             Project: Beam
>          Issue Type: Improvement
>          Components: beam-playground
>            Reporter: Daria Malkova
>            Assignee: Daria Malkova
>            Priority: P3
>              Labels: beam-playground-backend, beam-playground-sprint-6, 
> beam-playground-sprint-7
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> Investigate and implement (if need) a usage of a builder for preparators to 
> construct the necessary builders for each SDK/unit-test/not-unit-test



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