/*
* @(#)ClassTree.java 1.13 00/02/02
*
* Copyright 1998-2000 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the proprietary information of Sun Microsystems, Inc.
* Use is subject to license terms.
*
*/
package com.sun.tools.doclets;
import com.sun.javadoc.*;
import java.io.*;
import java.lang.*;
import java.util.*;
/**
* Build Class Hierarchy for all the Classes. This class builds the Class
* Tree and the Interface Tree separately.
*
* @see java.util.HashMap
* @see java.util.List
* @see com.sun.javadoc.Type
* @see com.sun.javadoc.ClassDoc
* @author Atul M Dambalkar
*/
public class ClassTree {
/**
* List of baseclasses. Contains only java.lang.Object. Can be used to get
* the mapped listing of sub-classes.
*/
private List baseclasses = new ArrayList();
/**
* Mapping for each Class with their SubClasses
*/
private Map subclasses = new HashMap();
/**
* List of base-interfaces. Contains list of all the interfaces who do not
* have super-interfaces. Can be used to get the mapped listing of
* sub-interfaces.
*/
private List baseinterfaces = new ArrayList();
/**
* Mapping for each Interface with their SubInterfaces
*/
private Map subinterfaces = new HashMap();
/**
* Mapping for each Interface with classes who implement it.
*/
private Map implementingclasses = new HashMap();
/**
* Constructor. Build the Tree using the Root of this Javadoc run.
*
* @param root Root of the Document.
* @param noDeprecated Don't add deprecated classes in the class tree, if
* true.
*/
public ClassTree(RootDoc root, boolean noDeprecated) {
Configuration.message.notice("doclet.Building_Tree");
buildTree(root.classes(), noDeprecated);
}
/**
* Constructor. Build the tree for the given array of classes.
*
* @param classes Array of classes.
* @param noDeprecated Don't add deprecated classes in the class tree, if
* true.
*/
public ClassTree(ClassDoc[] classes, boolean noDeprecated) {
buildTree(classes, noDeprecated);
}
/**
* Generate mapping for the sub-classes for every class in this run.
* Return the sub-class list for java.lang.Object which will be having
* sub-class listing for itself and also for each sub-class itself will
* have their own sub-class lists.
*
* @param classes all the classes in this run.
* @param noDeprecated Don't add deprecated classes in the class tree, if
* true.
*/
private void buildTree(ClassDoc[] classes, boolean noDeprecated) {
for (int i = 0; i < classes.length; i++) {
if (noDeprecated && classes[i].tags("deprecated").length > 0) {
continue;
}
if (classes[i].isClass()) {
processClass(classes[i]);
} else { // this is an interface.
processInterface(classes[i]);
List list = (List)implementingclasses.get(classes[i]);
if (list != null) {
Collections.sort(list);
}
}
}
Collections.sort(baseinterfaces);
for (Iterator it = subinterfaces.values().iterator(); it.hasNext(); ) {
Collections.sort((List)it.next());
}
for (Iterator it = subclasses.values().iterator(); it.hasNext(); ) {
Collections.sort((List)it.next());
}
}
/**
* For the class passed map it to it's own sub-class listing.
* For the Class passed, get the super class,
* if superclass is non null, (it is not "java.lang.Object")
* get the "value" from the hashmap for this key Class
* if entry not found create one and get that.
* add this Class as a sub class in the list
* Recurse till hits java.lang.Object Null SuperClass.
*
* @param cd class for which sub-class mapping to be generated.
*/
private void processClass(ClassDoc cd) {
ClassDoc superclass = cd.superclass();
if (superclass != null) {
if (!add(subclasses, superclass, cd)) {
return;
} else {
processClass(superclass); // Recurse
}
} else { // cd is java.lang.Object, add it once to the list
if (!baseclasses.contains(cd)) {
baseclasses.add(cd);
}
}
ClassDoc[] intfacs = cd.interfaces();
for (int i = 0; i < intfacs.length; i++) {
add(implementingclasses, intfacs[i], cd);
}
}
/**
* For the interface passed get the interfaces which it extends, and then
* put this interface in the sub-interface list of those interfaces. Do it
* recursively. If a interface doesn't have super-interface just attach
* that interface in the list of all the baseinterfaces.
*
* @param cd Interface under consideration.
*/
private void processInterface(ClassDoc cd) {
ClassDoc[] intfacs = cd.interfaces();
if (intfacs.length > 0) {
for (int i = 0; i < intfacs.length; i++) {
if (!add(subinterfaces, intfacs[i], cd)) {
return;
} else {
processInterface(intfacs[i]); // Recurse
}
}
} else {
// we need to add all the interfaces who do not have
// super-interfaces to baseinterfaces list to traverse them
if (!baseinterfaces.contains(cd)) {
baseinterfaces.add(cd);
}
}
}
/**
* Adjust the Class Tree. Add the class interface in to it's super-class'
* or super-interface's sub-interface list.
*
* @param map the entire map.
* @param superclass java.lang.Object or the super-interface.
* @param cd sub-interface to be mapped.
* @returns boolean true if class added, false if class already processed.
*/
private boolean add(Map map, ClassDoc superclass, ClassDoc cd) {
List list = (List)map.get(superclass);
if (list == null) {
list = new ArrayList();
map.put(superclass, list);
}
if (list.contains(cd)) {
return false;
} else {
list.add(cd);
}
return true;
}
/**
* From the map return the list of sub-classes or sub-interfaces. If list
* is null create a new one and return it.
*
* @param map The entire map.
* @param cd class for which the sub-class list is requested.
* @returns List Sub-Class list for the class passed.
*/
private List get(Map map, ClassDoc cd) {
List list = (List)map.get(cd);
if (list == null) {
return new ArrayList();
}
return list;
}
/**
* Return the sub-class list for the class passed.
*
* @param cd class whose sub-class list is required.
*/
public List subclasses(ClassDoc cd) {
return get(subclasses, cd);
}
/**
* Return the sub-interface list for the interface passed.
*
* @param cd interface whose sub-interface list is required.
*/
public List subinterfaces(ClassDoc cd) {
return get(subinterfaces, cd);
}
/**
* Return the list of classes which implement the interface passed.
*
* @param cd interface whose implementing-classes list is required.
*/
public List implementingclasses(ClassDoc cd) {
return get(implementingclasses, cd);
}
/**
* Return the sub-class/interface list for the class/interface passed.
*
* @param cd class/interface whose sub-class/interface list is required.
*/
public List subs(ClassDoc cd) {
return get(cd.isInterface()? subinterfaces: subclasses, cd);
}
/**
* Return a list of all direct or indirect, sub-classes and subinterfaces
* of the ClassDoc argument.
*
* @param cd ClassDoc whose sub-classes or sub-interfaces are requested.
*/
public List allSubs(ClassDoc cd) {
List list = get(cd.isInterface()? subinterfaces: subclasses, cd);
for (int i = 0; i < list.size(); i++) {
cd = (ClassDoc)list.get(i);
List tlist = get(cd.isInterface()? subinterfaces: subclasses, cd);
for (int j = 0; j < tlist.size(); j++) {
ClassDoc tcd = (ClassDoc)tlist.get(j);
if (!list.contains(tcd)) {
list.add(tcd);
}
}
}
Collections.sort(list);
return list;
}
/**
* Return the base-classes list. This will have only one element namely
* thw classdoc for java.lang.Object, since this is the base class for all
* classes.
*/
public List baseclasses() {
return baseclasses;
}
/**
* Return the list of base interfaces. This is the list of interfaces
* which do not have super-interface.
*/
public List baseinterfaces() {
return baseinterfaces;
}
}
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