From: Svjatoslav Agejenko <svjatoslav@svjatoslav.eu>
Date: Thu, 21 Nov 2013 20:27:08 +0000 (+0200)
Subject: count class extensions as references when calculating orphaned classes
X-Git-Tag: javainspect-1.3~10
X-Git-Url: http://www2.svjatoslav.eu/gitweb/?a=commitdiff_plain;h=8285a2e198a01177b14e528f8e12de2f7d5273e9;p=javainspect.git

count class extensions as references when calculating orphaned classes
---

diff --git a/src/main/java/eu/svjatoslav/inspector/java/structure/ClassDescriptor.java b/src/main/java/eu/svjatoslav/inspector/java/structure/ClassDescriptor.java
index c0be547..eae630b 100644
--- a/src/main/java/eu/svjatoslav/inspector/java/structure/ClassDescriptor.java
+++ b/src/main/java/eu/svjatoslav/inspector/java/structure/ClassDescriptor.java
@@ -59,6 +59,8 @@ public class ClassDescriptor implements GraphElement {
 	 */
 	private int incomingReferencesCount = 0;
 
+	private int extensionsCount = 0;
+
 	public ClassDescriptor(final Class<? extends Object> clazz,
 			final ClassGraph dump) {
 		classGraph = dump;
@@ -87,10 +89,17 @@ public class ClassDescriptor implements GraphElement {
 
 		indexMethods(clazz);
 
-		for (final Class interfaceClass : clazz.getInterfaces())
-			interfaces.add(dump.addClass(interfaceClass));
+		for (final Class interfaceClass : clazz.getInterfaces()) {
+			final ClassDescriptor classDescriptor = dump
+					.addClass(interfaceClass);
+			classDescriptor.registerExtension();
+			interfaces.add(classDescriptor);
+		}
 
 		superClass = dump.addClass(clazz.getSuperclass());
+		if (superClass != null)
+			superClass.registerExtension();
+
 	}
 
 	public boolean areReferencesShown() {
@@ -299,7 +308,7 @@ public class ClassDescriptor implements GraphElement {
 	public String getGraphId() {
 		final String result = "class_"
 				+ fullyQualifiedName.replace('.', '_').replace(";", "")
-				.replace("[L", "").replace('$', '_');
+						.replace("[L", "").replace('$', '_');
 		return result;
 	}
 
@@ -310,25 +319,38 @@ public class ClassDescriptor implements GraphElement {
 		return interfaceColor;
 	}
 
-	public String getPackageName() {
+	private int getOutgoingReferencesCount() {
+		int result = 0;
 
-		final int i = fullyQualifiedName.lastIndexOf('.');
+		// count method references
+		for (final MethodDescriptor methodDescriptor : methods)
+			result += methodDescriptor.getOutsideVisibleReferencesCount();
 
-		if (i == -1)
-			return "";
+		// count field references
+		for (final FieldDescriptor fieldDescriptor : nameToFieldMap.values())
+			result += fieldDescriptor.getOutsideVisibleReferencesCount();
 
-		return fullyQualifiedName.substring(0, i).replace("[L", "");
+		// count implemented interfaces
+		for (final ClassDescriptor classDescriptor : interfaces)
+			if (classDescriptor.isVisible())
+				result++;
+
+		// count superclass
+		if (superClass != null)
+			if (superClass.isVisible())
+				result++;
+
+		return result;
 	}
 
-	public String getParentClassesName() {
-		int i = fullyQualifiedName.lastIndexOf('.');
-		final String fullClassName = fullyQualifiedName.substring(i + 1);
+	public String getPackageName() {
+
+		final int i = fullyQualifiedName.lastIndexOf('.');
 
-		i = fullClassName.lastIndexOf('$');
 		if (i == -1)
 			return "";
-		final String parentClassesName = fullClassName.substring(0, i);
-		return parentClassesName.replace('$', '.');
+
+		return fullyQualifiedName.substring(0, i).replace("[L", "");
 	}
 
 	// public String getReadableName() {
@@ -345,6 +367,17 @@ public class ClassDescriptor implements GraphElement {
 	// return fullyQualifiedName;
 	// }
 
+	public String getParentClassesName() {
+		int i = fullyQualifiedName.lastIndexOf('.');
+		final String fullClassName = fullyQualifiedName.substring(i + 1);
+
+		i = fullClassName.lastIndexOf('$');
+		if (i == -1)
+			return "";
+		final String parentClassesName = fullClassName.substring(0, i);
+		return parentClassesName.replace('$', '.');
+	}
+
 	public String getSuperClassColor() {
 		if (superClassColor == null)
 			superClassColor = Utils.getNextLightColor();
@@ -356,29 +389,19 @@ public class ClassDescriptor implements GraphElement {
 		isShown = false;
 	}
 
-	public boolean hideClassIfNoReferences() {
+	public void hideClassIfNoReferences() {
 		if (!isVisible())
-			return false;
-
-		int outgoingVisibleReferencesCount = 0;
-
-		for (final MethodDescriptor methodDescriptor : methods)
-			outgoingVisibleReferencesCount += methodDescriptor
-			.getOutsideVisibleReferencesCount();
-
-		for (final FieldDescriptor fieldDescriptor : nameToFieldMap.values())
-			outgoingVisibleReferencesCount += fieldDescriptor
-			.getOutsideVisibleReferencesCount();
+			return;
 
-		final int totalReferencesCount = outgoingVisibleReferencesCount
-				+ incomingReferencesCount;
+		final int totalReferencesCount = getOutgoingReferencesCount()
+				+ incomingReferencesCount + extensionsCount;
 
 		if (totalReferencesCount == 0) {
 			hide();
-			return true;
+			return;
 		}
 
-		return false;
+		return;
 	}
 
 	public void indexFields(final Field[] fields) {
@@ -415,6 +438,14 @@ public class ClassDescriptor implements GraphElement {
 		return isShown;
 	}
 
+	/**
+	 * Register event when another class is extending this one, or is
+	 * implementing interface declared by this class.
+	 */
+	public void registerExtension() {
+		extensionsCount++;
+	}
+
 	public void registerReference() {
 		incomingReferencesCount++;
 	}
diff --git a/src/main/java/eu/svjatoslav/inspector/java/structure/FieldDescriptor.java b/src/main/java/eu/svjatoslav/inspector/java/structure/FieldDescriptor.java
index 42ecfcf..5b141e3 100644
--- a/src/main/java/eu/svjatoslav/inspector/java/structure/FieldDescriptor.java
+++ b/src/main/java/eu/svjatoslav/inspector/java/structure/FieldDescriptor.java
@@ -22,7 +22,7 @@ public class FieldDescriptor implements GraphElement {
 	 */
 
 	public String name;
-	public ClassDescriptor type;
+	private ClassDescriptor type;
 	private ClassDescriptor parent;
 	List<ClassDescriptor> typeArguments = new ArrayList<ClassDescriptor>();
 
@@ -131,8 +131,9 @@ public class FieldDescriptor implements GraphElement {
 		if (!isVisible())
 			return 0;
 
-		if (type.isVisible())
-			return 1;
+		if (type != null)
+			if (type.isVisible())
+				return 1;
 
 		return 0;
 	}