/*
* Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.doclets.internal.toolkit.taglets;
import com.sun.javadoc.*;
import com.sun.tools.doclets.internal.toolkit.Configuration;
import com.sun.tools.doclets.internal.toolkit.Content;
import com.sun.tools.doclets.internal.toolkit.util.*;
/**
* An inline Taglet representing the <b>inheritDoc</b> tag. This tag should only
* be used with a method. It is used to inherit documentation from overriden
* and implemented methods.
*
* <p><b>This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own risk.
* This code and its internal interfaces are subject to change or
* deletion without notice.</b>
*
* @author Jamie Ho
* @since 1.4
*/
@Deprecated
public class InheritDocTaglet extends BaseInlineTaglet {
/**
* The inline tag that would appear in the documentation if
* the writer wanted documentation to be inherited.
*/
public static final String INHERIT_DOC_INLINE_TAG = "{@inheritDoc}";
/**
* Construct a new InheritDocTaglet.
*/
public InheritDocTaglet () {
name = "inheritDoc";
}
/**
* Will return false because this inline tag may
* not appear in Fields.
* @return false
*/
public boolean inField() {
return false;
}
/**
* Will return false because this inline tag may
* not appear in Constructors.
* @return false
*/
public boolean inConstructor() {
return false;
}
/**
* Will return false because this inline tag may
* not appear in Overview.
* @return false
*/
public boolean inOverview() {
return false;
}
/**
* Will return false because this inline tag may
* not appear in Packages.
* @return false
*/
public boolean inPackage() {
return false;
}
/**
* Will return true because this inline tag may
* appear in Type (Class).
* @return true
*/
public boolean inType() {
return true;
}
/**
* Given a <code>MethodDoc</code> item, a <code>Tag</code> in the
* <code>MethodDoc</code> item and a String, replace all occurrences
* of @inheritDoc with documentation from it's superclass or superinterface.
*
* @param writer the writer that is writing the output.
* @param ped the {@link ProgramElementDoc} that we are documenting.
* @param holderTag the tag that holds the inheritDoc tag or null for type
* (class) docs.
* @param isFirstSentence true if we only want to inherit the first sentence.
*/
private Content retrieveInheritedDocumentation(TagletWriter writer,
ProgramElementDoc ped, Tag holderTag, boolean isFirstSentence) {
Content replacement = writer.getOutputInstance();
Configuration configuration = writer.configuration();
Taglet inheritableTaglet = holderTag == null ?
null : configuration.tagletManager.getTaglet(holderTag.name());
if (inheritableTaglet != null &&
!(inheritableTaglet instanceof InheritableTaglet)) {
String message = ped.name() +
((ped instanceof ExecutableMemberDoc)
? ((ExecutableMemberDoc)ped).flatSignature()
: "");
//This tag does not support inheritence.
configuration.message.warning(ped.position(),
"doclet.noInheritedDoc", message);
}
DocFinder.Output inheritedDoc =
DocFinder.search(configuration, new DocFinder.Input(ped,
(InheritableTaglet) inheritableTaglet, holderTag,
isFirstSentence, true));
if (inheritedDoc.isValidInheritDocTag) {
if (inheritedDoc.inlineTags.length > 0) {
replacement = writer.commentTagsToOutput(inheritedDoc.holderTag,
inheritedDoc.holder, inheritedDoc.inlineTags, isFirstSentence);
}
} else {
String message = ped.name() +
((ped instanceof ExecutableMemberDoc)
? ((ExecutableMemberDoc)ped).flatSignature()
: "");
configuration.message.warning(ped.position(),
"doclet.noInheritedDoc", message);
}
return replacement;
}
/**
* Given the <code>Tag</code> representation of this custom
* tag, return its string representation, which is output
* to the generated page.
* @param tag the <code>Tag</code> representation of this custom tag.
* @param tagletWriter the taglet writer for output.
* @return the Content representation of this <code>Tag</code>.
*/
public Content getTagletOutput(Tag tag, TagletWriter tagletWriter) {
if (! (tag.holder() instanceof ProgramElementDoc)) {
return tagletWriter.getOutputInstance();
}
return tag.name().equals("@inheritDoc") ?
retrieveInheritedDocumentation(tagletWriter, (ProgramElementDoc) tag.holder(), null, tagletWriter.isFirstSentence) :
retrieveInheritedDocumentation(tagletWriter, (ProgramElementDoc) tag.holder(), tag, tagletWriter.isFirstSentence);
}
}