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Muntazir Fadhel
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Nov 11, 2024
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42 changes: 42 additions & 0 deletions
42
src/main/java/com/hadii/striff/metrics/AfferentCouplingMetric.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| package com.hadii.striff.metrics; | ||
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| import com.hadii.clarpse.reference.ComponentReference; | ||
| import com.hadii.clarpse.sourcemodel.Component; | ||
| import com.hadii.clarpse.sourcemodel.OOPSourceCodeModel; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.stream.Collectors; | ||
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| /** | ||
| * Represents the Afferent Class Coupling metric, which is a measure of the | ||
| * number of classes that reference the given class. | ||
| */ | ||
| public class AfferentCouplingMetric implements Metric { | ||
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| private final Map<String, Double> references = new HashMap<>(); | ||
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| public AfferentCouplingMetric(OOPSourceCodeModel srcModel) { | ||
| this.calculate(srcModel); | ||
| } | ||
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| private void calculate(OOPSourceCodeModel srcModel) { | ||
| for (Component tempCmp : srcModel.components().collect(Collectors.toList())) { | ||
| if (tempCmp.componentType().isBaseComponent()) { | ||
| for (ComponentReference cmpRef : tempCmp | ||
| .references()) { | ||
| references.put(cmpRef.invokedComponent(), | ||
| references.getOrDefault(cmpRef.invokedComponent(), 0.0) + 1); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| public double value(String cmpId) { | ||
| return this.references.getOrDefault(cmpId, 0.0); | ||
| } | ||
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| @Override | ||
| public String acronym() { | ||
| return "AC"; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,46 +1,46 @@ | ||
| package com.hadii.striff.metrics; | ||
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| import com.hadii.clarpse.reference.ComponentReference; | ||
| import com.hadii.clarpse.sourcemodel.Component; | ||
| import com.hadii.clarpse.sourcemodel.OOPSourceCodeModel; | ||
| import com.hadii.clarpse.sourcemodel.OOPSourceModelConstants; | ||
|
|
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| import java.util.Optional; | ||
|
|
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| /** | ||
| * Represents a Depth of Inheritance metric, which is a measure of how far down a class is declared in | ||
| * the inheritance hierarchy. | ||
| * Represents a Depth of Inheritance metric, which is a measure of how far down | ||
| * a class is declared in the inheritance hierarchy. | ||
| */ | ||
| public class DITMetric implements Metric { | ||
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| private final double value; | ||
| private final OOPSourceCodeModel srcModel; | ||
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| public DITMetric(Component component, OOPSourceCodeModel srcModel) { | ||
| public DITMetric(OOPSourceCodeModel srcModel) { | ||
| this.srcModel = srcModel; | ||
| this.value = calculateDit(component); | ||
| } | ||
|
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| private int calculateDit(Component cmp) { | ||
| if (cmp.componentType() == OOPSourceModelConstants.ComponentType.INTERFACE) { | ||
| return 1; | ||
| } | ||
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| int currentHighestScore = 1; | ||
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| for (ComponentReference cmpRef : cmp.references(OOPSourceModelConstants.TypeReferences.EXTENSION)) { | ||
| Optional<Component> invkCmp = this.srcModel.getComponent(cmpRef.invokedComponent()); | ||
| if (invkCmp.isPresent()) { | ||
| int hierarchyScore = 1 + calculateDit(invkCmp.get()); | ||
| if (hierarchyScore > currentHighestScore) { | ||
| currentHighestScore = hierarchyScore; | ||
| } | ||
| } | ||
| private Double calculateDit(String cmpId) { | ||
| double currentHighestScore = 1; | ||
| Optional<Component> componentOpt = this.srcModel.getComponent(cmpId); | ||
| // Calculate the highest score if the component is present and not an interface | ||
| if (componentOpt.isPresent() | ||
| && componentOpt.get().componentType() != OOPSourceModelConstants.ComponentType.INTERFACE) { | ||
| currentHighestScore = componentOpt.get() | ||
| .references(OOPSourceModelConstants.TypeReferences.EXTENSION).stream() | ||
| .map(cmpRef -> this.srcModel.getComponent(cmpRef.invokedComponent())) | ||
| .filter(Optional::isPresent) | ||
| .mapToDouble(invkCmp -> 1.0 + calculateDit(invkCmp.get().uniqueName())) | ||
| .max() | ||
| .orElse(currentHighestScore); | ||
| } | ||
| return currentHighestScore; | ||
| } | ||
|
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| public double value() { | ||
| return this.value; | ||
| public double value(String cmpUniqueName) { | ||
| return this.calculateDit(cmpUniqueName); | ||
| } | ||
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| @Override | ||
| public String acronym() { | ||
| return "DIT"; | ||
| } | ||
| } |
33 changes: 33 additions & 0 deletions
33
src/main/java/com/hadii/striff/metrics/EfferentCouplingMetric.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| package com.hadii.striff.metrics; | ||
|
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| import com.hadii.clarpse.sourcemodel.Component; | ||
| import com.hadii.clarpse.sourcemodel.OOPSourceCodeModel; | ||
|
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| import java.util.Optional; | ||
|
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| /** | ||
| * Represents the Efferent Class Coupling metric, which is a measure of the | ||
| * number of other classes referenced by a class. | ||
| */ | ||
| public class EfferentCouplingMetric implements Metric { | ||
|
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| private final OOPSourceCodeModel srcModel; | ||
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| public EfferentCouplingMetric(OOPSourceCodeModel srcModel) { | ||
| this.srcModel = srcModel; | ||
| } | ||
|
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| public double value(String cmpId) { | ||
| Optional<Component> componentOpt = this.srcModel.getComponent(cmpId); | ||
| if (componentOpt.isPresent()) { | ||
| return componentOpt.get().references().size(); | ||
| } else { | ||
| throw new IllegalArgumentException("Could not find component: " + cmpId + "!"); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public String acronym() { | ||
| return "EC"; | ||
| } | ||
| } |
45 changes: 45 additions & 0 deletions
45
src/main/java/com/hadii/striff/metrics/EncapsulationMetric.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| package com.hadii.striff.metrics; | ||
|
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| import com.hadii.clarpse.sourcemodel.Component; | ||
| import com.hadii.clarpse.sourcemodel.OOPSourceCodeModel; | ||
|
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| /** | ||
| * The Encapsulation Ratio measures how well a class hides its data, | ||
| * focusing on the accessibility of its fields and methods. A higher | ||
| * encapsulation ratio suggests better data hiding, which is a core | ||
| * principle of OOP. | ||
| */ | ||
| public class EncapsulationMetric implements Metric { | ||
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| private OOPSourceCodeModel srcModel; | ||
|
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| public EncapsulationMetric(OOPSourceCodeModel srcModel) { | ||
| this.srcModel = srcModel; | ||
| } | ||
|
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| public double value(String cmpId) { | ||
| if (srcModel.containsComponent(cmpId)) { | ||
| int privateMembers = 0; | ||
| Component currComponent = srcModel.getComponent(cmpId).get(); | ||
| // Iterate over children to count private/protected modifiers | ||
| for (String child : currComponent.children()) { | ||
| if (srcModel.containsComponent(child)) { | ||
| Component childCmp = srcModel.getComponent(child).get(); | ||
| if (childCmp.modifiers().contains("private") || childCmp.modifiers().contains("protected")) { | ||
| privateMembers++; | ||
| } | ||
| } | ||
| } | ||
| // Avoid division by zero if there are no children | ||
| int totalChildren = currComponent.children().size(); | ||
| return totalChildren > 0 ? (double) privateMembers / totalChildren : 0.0; | ||
| } else { | ||
| throw new IllegalArgumentException("Could not find component: " + cmpId + "!"); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public String acronym() { | ||
| return "ENC"; | ||
| } | ||
| } |
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