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package act.util;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import org.osgl.$;
import org.osgl.util.C;
import org.osgl.util.E;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
public class ClassNode {
private transient ClassInfoRepository infoBase;
private String name;
private String canonicalName;
private int modifiers;
private ClassNode parent;
private Set children = new HashSet<>();
private Set descendants = new HashSet<>();
Map interfaces = new HashMap<>();
Set annotations = new HashSet<>();
Set annotated = new HashSet<>();
ClassNode(String name, int modifiers, ClassInfoRepository infoBase) {
this(name, name.replace('$', '.'), modifiers, infoBase);
}
ClassNode(String name, String canonicalName, int modifiers, ClassInfoRepository infoBase) {
this(name, canonicalName, infoBase);
this.modifiers = modifiers;
}
ClassNode(String name, ClassInfoRepository infoBase) {
this(name, name.replace('$', '.'), infoBase);
}
ClassNode(String name, String canonicalName, ClassInfoRepository infoBase) {
E.NPE(name, infoBase);
this.name = name;
this.canonicalName = canonicalName;
this.infoBase = infoBase;
}
public String name() {
return name;
}
public String canonicalName() {
return canonicalName;
}
public ClassNode modifiers(int modifiers) {
this.modifiers = modifiers;
return this;
}
public int modifiers() {
return modifiers;
}
public boolean isPublic() {
return Modifier.isPublic(modifiers);
}
public boolean isInterface() {
return Modifier.isInterface(modifiers);
}
public boolean isAbstract() {
return Modifier.isAbstract(modifiers) || Modifier.isInterface(modifiers);
}
public boolean publicNotAbstract() {
return isPublic() && !isAbstract();
}
public void setInfoBase(ClassInfoRepository repo) {
this.infoBase = $.requireNotNull(repo);
}
public ClassNode parent() {
return parent;
}
/**
* Specify the class represented by this `ClassNode` extends
* a class with the name specified
* @param name the name of the parent class
* @return this `ClassNode` instance
*/
public ClassNode parent(String name) {
this.parent = infoBase.node(name);
this.parent.addChild(this);
for (ClassNode intf : parent.interfaces.values()) {
addInterface(intf);
}
return this;
}
/**
* Specify the class represented by this `ClassNode` implements
* an interface specified by the given name
*
* @param name the name of the interface class
* @return this `ClassNode` instance
*/
public ClassNode addInterface(String name) {
ClassNode intf = infoBase.node(name);
addInterface(intf);
return this;
}
void addInterface(ClassNode classNode) {
this.interfaces.put(classNode.name(), classNode);
classNode.addChild(this);
for (ClassNode child : children) {
child.addInterface(classNode);
}
}
public boolean hasInterfaces() {
return !interfaces.isEmpty();
}
public boolean hasInterface(String name) {
return interfaces.containsKey(name);
}
/**
* Specify the class represented by this `ClassNode` is annotated
* by an annotation class specified by the name
* @param name the name of the annotation class
* @return this `ClassNode` instance
*/
public ClassNode annotatedWith(String name) {
ClassNode anno = infoBase.node(name);
this.annotations.add(anno);
anno.annotated.add(this);
return this;
}
void addAnnotation(ClassNode classNode) {
this.annotations.add(classNode);
}
void addAnnontated(ClassNode classNode) {
this.annotated.add(classNode);
}
/**
* Accept a visitor that visit all descendants of the class represented
* by this `ClassNode` including this `ClassNode` itself
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitTree($.Function visitor) {
visitTree(visitor, new HashSet());
return this;
}
private void visitTree($.Function visitor, Set visited) {
visitSubTree(visitor, visited);
if (!visited.contains(this)) {
visitor.apply(this);
}
}
private void visitSubTree($.Function visitor, Set visited) {
for (ClassNode child : children) {
if (!visited.contains(child)) {
child.visitTree(visitor, visited);
visited.add(child);
}
}
}
private static $.Predicate classNodeFilter(final boolean publicOnly, final boolean noAbstract) {
return new $.Predicate() {
@Override
public boolean test(ClassNode classNode) {
if (publicOnly && !classNode.isPublic()) {
return false;
}
if (noAbstract && classNode.isAbstract()) {
return false;
}
return true;
}
};
}
/**
* Accept a visitor that visit all descendants of the class represetned by
* this `ClassNode` including this `ClassNode` itself.
* @param visitor the visitor
* @param publicOnly specify if only public class shall be visited
* @param noAbstract specify if abstract class can be visited
* @return this `ClassNode` instance
*/
public ClassNode visitTree($.Visitor visitor, final boolean publicOnly, final boolean noAbstract) {
return visitTree($.guardedVisitor(classNodeFilter(publicOnly, noAbstract), visitor));
}
/**
* Accept a visitor that visit all descendants of the class represented
* by this `ClassNode` NOT including this `ClassNode` itself
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitSubTree($.Visitor visitor) {
visitSubTree(visitor, new HashSet());
return this;
}
/**
* Accept a visitor that visit all descendants of the class represetned by
* this `ClassNode` NOT including this `ClassNode` itself.
* @param visitor the visitor
* @param publicOnly specify if only public class shall be visited
* @param noAbstract specify if abstract class can be visited
* @return this `ClassNode` instance
*/
public ClassNode visitSubTree($.Visitor visitor, final boolean publicOnly, final boolean noAbstract) {
return visitSubTree($.guardedVisitor(classNodeFilter(publicOnly, noAbstract), visitor));
}
/**
* Accept a visitor that visit all public and non-abstract descendants of the
* class represented by this `ClassNode` including this `ClassNode` itself
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitPublicTreeNodes($.Visitor visitor) {
return visitTree($.guardedVisitor(new $.Predicate() {
@Override
public boolean test(ClassNode classNode) {
return classNode.isPublic();
}
}, visitor));
}
/**
* Accept a visitor that visit all public and non-abstract descendants of the
* class represented by this `ClassNode` NOT including this `ClassNode` itself
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitPublicSubTreeNodes($.Visitor visitor) {
return visitSubTree($.guardedVisitor(new $.Predicate() {
@Override
public boolean test(ClassNode classNode) {
return classNode.isPublic();
}
}, visitor));
}
/**
* Accept a visitor that visit all public descendants of the
* class represented by this `ClassNode` NOT including this `ClassNode` itself
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitPublicNotAbstractSubTreeNodes($.Visitor visitor) {
return visitSubTree($.guardedVisitor(new $.Predicate() {
@Override
public boolean test(ClassNode classNode) {
return classNode.publicNotAbstract();
}
}, visitor));
}
/**
* Accept a visitor that visit all public descendants of the
* class represented by this `ClassNode` including this `ClassNode` itself
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitPublicNotAbstractTreeNodes($.Visitor visitor) {
return visitTree($.guardedVisitor(new $.Predicate() {
@Override
public boolean test(ClassNode classNode) {
return classNode.publicNotAbstract();
}
}, visitor));
}
/**
* Returns a set of `ClassNode` that has been annotated by the annotation
* class represented by this `ClassNode`
* @return the annotated class node set
*/
public Set annotatedClasses() {
return C.set(annotated);
}
/**
* Accept a visitor that visit all class node that has been annotated by the
* class represented by this `ClassNode`
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitAnnotatedClasses($.Visitor visitor) {
for (ClassNode annotated : this.annotated) {
visitor.apply(annotated);
}
return this;
}
/**
* Accept a visitor that visit all class node that has been annotated by the
* class represented by this `ClassNode`
* @param visitor the function that take `ClassNode` as argument
* @param publicOnly specify whether non-public class shall be scanned
* @param noAbstract specify whether abstract class shall be scanned
* @return this `ClassNode` instance
*/
public ClassNode visitAnnotatedClasses($.Visitor visitor, boolean publicOnly, boolean noAbstract) {
return visitAnnotatedClasses($.guardedVisitor(classNodeFilter(publicOnly, noAbstract), visitor));
}
/**
* Accept a visitor that visit all public class node
* that has been annotated by the class represented by this `ClassNode`
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitPublicAnnotatedClasses($.Visitor visitor) {
return visitAnnotatedClasses($.guardedVisitor(new $.Predicate() {
@Override
public boolean test(ClassNode classNode) {
return classNode.isPublic();
}
}, visitor));
}
/**
* Accept a visitor that visit all public and non-abstract class node
* that has been annotated by the class represented by this `ClassNode`
* @param visitor the function that take `ClassNode` as argument
* @return this `ClassNode` instance
*/
public ClassNode visitPublicNotAbstractAnnotatedClasses($.Visitor visitor) {
return visitAnnotatedClasses($.guardedVisitor(new $.Predicate() {
@Override
public boolean test(ClassNode classNode) {
return classNode.publicNotAbstract();
}
}, visitor));
}
/**
* Returns a set of class node that annotated the class represented by this
* `ClassNode`
* @return the annotation class node set
*/
public Set annotations() {
return C.set(annotations);
}
@Override
public String toString() {
return name;
}
@Override
public int hashCode() {
return name.hashCode();
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof ClassNode) {
ClassNode that = (ClassNode) obj;
return $.eq(that.name, this.name);
}
return false;
}
public boolean isMyDescendant(ClassNode node) {
return descendants.contains(node);
}
public boolean isMyAncestor(ClassNode node) {
return node.isMyDescendant(this);
}
ClassNodeDTO toDTO() {
return new ClassNodeDTO(this);
}
ClassNode addChild(ClassNode node) {
children.add(node);
for (ClassNode intf : interfaces.values()) {
node.addInterface(intf);
}
addDescendant(node);
return this;
}
private void addDescendant(ClassNode node) {
descendants.addAll(node.descendants);
descendants.add(node);
if (null != parent) {
parent.addDescendant(node);
}
}
}
