SiLeBAT/FSK-Lab

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de.bund.bfr.knime.fsklab.nodes/src/de/bund/bfr/knime/fsklab/nodes/PythonJsonHandler.java

Summary

Maintainability
C
7 hrs
Test Coverage

Method saveOutputParameters has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
Open

  @Override
  public void saveOutputParameters(FskPortObject fskObj, Path workingDirectory)
      throws VariableNotGlobalException, IOException, ParameterJsonConversionException,
      URISyntaxException {
    // create script to store variables in hdf5 file

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Method saveInputParameters has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  @Override
  public void saveInputParameters(FskPortObject fskObj, Path workingDirectory) throws Exception {
    String path = workingDirectory.toString() + File.separator + JSON_FILE_NAME;
    parameterJson = new ParameterJson(new File(path));

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Define a constant instead of duplicating this literal "DataFrame" 5 times.
Open

            .contains("DataFrame");

Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.

On the other hand, constants can be referenced from many places, but only need to be updated in a single place.

Noncompliant Code Example

With the default threshold of 3:

public void run() {
  prepare("action1");                              // Noncompliant - "action1" is duplicated 3 times
  execute("action1");
  release("action1");
}

@SuppressWarning("all")                            // Compliant - annotations are excluded
private void method1() { /* ... */ }
@SuppressWarning("all")
private void method2() { /* ... */ }

public String method3(String a) {
  System.out.println("'" + a + "'");               // Compliant - literal "'" has less than 5 characters and is excluded
  return "";                                       // Compliant - literal "" has less than 5 characters and is excluded
}

Compliant Solution

private static final String ACTION_1 = "action1";  // Compliant

public void run() {
  prepare(ACTION_1);                               // Compliant
  execute(ACTION_1);
  release(ACTION_1);
}

Exceptions

To prevent generating some false-positives, literals having less than 5 characters are excluded.

Similar blocks of code found in 2 locations. Consider refactoring.
Open

      if (p.getClassification() != Parameter.ClassificationEnum.OUTPUT) {
        StringBuilder script = new StringBuilder();
        script.append("#JSON_PARAMETER_OUTUT\n");
        convertParamToJsonSerializable(p.getId(), Parameter.ClassificationEnum.INPUT);
        script.append("print(toSerializable)\n"); // important to get a return from controller
de.bund.bfr.knime.fsklab.nodes/src/de/bund/bfr/knime/fsklab/nodes/PythonJsonHandler.java on lines 86..99

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 156.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

        try {
          StringBuilder script = new StringBuilder();
          script.append("#JSON_PARAMETER_OUTUT\n");
          convertParamToJsonSerializable(p.getId(), Parameter.ClassificationEnum.OUTPUT);
          script.append("print(toSerializable)"); // important to get a return from controller
de.bund.bfr.knime.fsklab.nodes/src/de/bund/bfr/knime/fsklab/nodes/PythonJsonHandler.java on lines 54..71

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 156.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

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