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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.tools.doclets.internal.toolkit.util;
import com.sun.tools.doclets.internal.toolkit.*;
import com.sun.javadoc.*;
import java.util.*;
/**
* Build the mapping of each Unicode character with it's member lists
* containing members names starting with it. Also build a list for all the
* Unicode characters which start a member name. Member name is
* classkind or field or method or constructor name.
*
* This code is not part of an API.
* It is implementation that is subject to change.
* Do not use it as an API
*
* @since 1.2
* @see java.lang.Character
* @author Atul M Dambalkar
*/
public class IndexBuilder {
/**
* Mapping of each Unicode Character with the member list containing
* members with names starting with it.
*/
private Map indexmap = new HashMap();
/**
* Don't generate deprecated information if true.
*/
private boolean noDeprecated;
/**
* Build this Index only for classes?
*/
private boolean classesOnly;
// make ProgramElementDoc[] when new toArray is available
protected final Object[] elements;
/**
* A comparator used to sort classes and members.
* Note: Maybe this compare code belongs in the tool?
*/
private class DocComparator implements Comparator {
public int compare(Object d1, Object d2) {
String doc1 = (((Doc) d1).name());
String doc2 = (((Doc) d2).name());
int compareResult;
if ((compareResult = doc1.compareToIgnoreCase(doc2)) != 0) {
return compareResult;
} else if (d1 instanceof ProgramElementDoc && d2 instanceof ProgramElementDoc) {
doc1 = (((ProgramElementDoc) d1).qualifiedName());
doc2 = (((ProgramElementDoc) d2).qualifiedName());
return doc1.compareToIgnoreCase(doc2);
} else {
return 0;
}
}
}
/**
* Constructor. Build the index map.
*
* @param configuration the current configuration of the doclet.
* @param noDeprecated true if -nodeprecated option is used,
* false otherwise.
*/
public IndexBuilder(Configuration configuration, boolean noDeprecated) {
this(configuration, noDeprecated, false);
}
/**
* Constructor. Build the index map.
*
* @param configuration the current configuration of the doclet.
* @param noDeprecated true if -nodeprecated option is used,
* false otherwise.
* @param classesOnly Include only classes in index.
*/
public IndexBuilder(Configuration configuration, boolean noDeprecated,
boolean classesOnly) {
if (classesOnly) {
configuration.message.notice("doclet.Building_Index_For_All_Classes");
} else {
configuration.message.notice("doclet.Building_Index");
}
this.noDeprecated = noDeprecated;
this.classesOnly = classesOnly;
buildIndexMap(configuration.root);
Set set = indexmap.keySet();
elements = set.toArray();
Arrays.sort(elements);
}
/**
* Sort the index map. Traverse the index map for all it's elements and
* sort each element which is a list.
*/
protected void sortIndexMap() {
for (Iterator it = indexmap.values().iterator(); it.hasNext(); ) {
Collections.sort((List)it.next(), new DocComparator());
}
}
/**
* Get all the members in all the Packages and all the Classes
* given on the command line. Form separate list of those members depending
* upon their names.
*
* @param root Root of the documemt.
*/
protected void buildIndexMap(RootDoc root) {
PackageDoc[] packages = root.specifiedPackages();
ClassDoc[] classes = root.classes();
if (!classesOnly) {
if (packages.length == 0) {
Set set = new HashSet();
PackageDoc pd;
for (int i = 0; i < classes.length; i++) {
pd = classes[i].containingPackage();
if (pd != null && pd.name().length() > 0) {
set.add(pd);
}
}
adjustIndexMap((PackageDoc[]) set.toArray(packages));
} else {
adjustIndexMap(packages);
}
}
adjustIndexMap(classes);
if (!classesOnly) {
for (int i = 0; i < classes.length; i++) {
if (shouldAddToIndexMap(classes[i])) {
putMembersInIndexMap(classes[i]);
}
}
}
sortIndexMap();
}
/**
* Put all the members(fields, methods and constructors) in the classdoc
* to the indexmap.
*
* @param classdoc ClassDoc whose members will be added to the indexmap.
*/
protected void putMembersInIndexMap(ClassDoc classdoc) {
adjustIndexMap(classdoc.fields());
adjustIndexMap(classdoc.methods());
adjustIndexMap(classdoc.constructors());
}
/**
* Adjust list of members according to their names. Check the first
* character in a member name, and then add the member to a list of members
* for that particular unicode character.
*
* @param elements Array of members.
*/
protected void adjustIndexMap(Doc[] elements) {
for (int i = 0; i < elements.length; i++) {
if (shouldAddToIndexMap(elements[i])) {
String name = elements[i].name();
char ch = (name.length()==0)?
'*' :
Character.toUpperCase(name.charAt(0));
Character unicode = new Character(ch);
List list = (List)indexmap.get(unicode);
if (list == null) {
list = new ArrayList();
indexmap.put(unicode, list);
}
list.add(elements[i]);
}
}
}
/**
* Should this doc element be added to the index map?
*/
protected boolean shouldAddToIndexMap(Doc element) {
return !(noDeprecated && element.tags("deprecated").length > 0);
}
/**
* Return a map of all the individual member lists with Unicode character.
*
* @return Map index map.
*/
public Map getIndexMap() {
return indexmap;
}
/**
* Return the sorted list of members, for passed Unicode Character.
*
* @param index index Unicode character.
* @return List member list for specific Unicode character.
*/
public List getMemberList(Character index) {
return (List)indexmap.get(index);
}
/**
* Array of IndexMap keys, Unicode characters.
*/
public Object[] elements() {
return elements;
}
}