diff -r 000000000000 -r 9a66ca7c79fa src/share/classes/com/sun/tools/doclets/internal/toolkit/taglets/ThrowsTaglet.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/classes/com/sun/tools/doclets/internal/toolkit/taglets/ThrowsTaglet.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,184 @@ +/* + * Copyright 2001-2004 Sun Microsystems, Inc. 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. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.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.util.*; +import java.util.*; + +/** + * A taglet that represents the @throws tag. + * + * This code is not part of an API. + * It is implementation that is subject to change. + * Do not use it as an API + * + * @author Jamie Ho + * @since 1.4 + */ +public class ThrowsTaglet extends BaseExecutableMemberTaglet + implements InheritableTaglet { + + public ThrowsTaglet() { + name = "throws"; + } + + /** + * {@inheritDoc} + */ + public void inherit(DocFinder.Input input, DocFinder.Output output) { + ClassDoc exception; + if (input.tagId == null) { + ThrowsTag throwsTag = (ThrowsTag) input.tag; + exception = throwsTag.exception(); + input.tagId = exception == null ? + throwsTag.exceptionName() : + throwsTag.exception().qualifiedName(); + } else { + exception = input.method.containingClass().findClass(input.tagId); + } + + ThrowsTag[] tags = input.method.throwsTags(); + for (int i = 0; i < tags.length; i++) { + if (input.tagId.equals(tags[i].exceptionName()) || + (tags[i].exception() != null && + (input.tagId.equals(tags[i].exception().qualifiedName())))) { + output.holder = input.method; + output.holderTag = tags[i]; + output.inlineTags = input.isFirstSentence ? + tags[i].firstSentenceTags() : tags[i].inlineTags(); + output.tagList.add(tags[i]); + } else if (exception != null && tags[i].exception() != null && + tags[i].exception().subclassOf(exception)) { + output.tagList.add(tags[i]); + } + } + } + + /** + * Add links for exceptions that are declared but not documented. + */ + private TagletOutput linkToUndocumentedDeclaredExceptions( + Type[] declaredExceptionTypes, Set alreadyDocumented, + TagletWriter writer) { + TagletOutput result = writer.getOutputInstance(); + //Add links to the exceptions declared but not documented. + for (int i = 0; i < declaredExceptionTypes.length; i++) { + if (declaredExceptionTypes[i].asClassDoc() != null && + ! alreadyDocumented.contains( + declaredExceptionTypes[i].asClassDoc().name()) && + ! alreadyDocumented.contains( + declaredExceptionTypes[i].asClassDoc().qualifiedName())) { + if (alreadyDocumented.size() == 0) { + result.appendOutput(writer.getThrowsHeader()); + } + result.appendOutput(writer.throwsTagOutput(declaredExceptionTypes[i])); + alreadyDocumented.add(declaredExceptionTypes[i].asClassDoc().name()); + } + } + return result; + } + + /** + * Inherit throws documentation for exceptions that were declared but not + * documented. + */ + private TagletOutput inheritThrowsDocumentation(Doc holder, + Type[] declaredExceptionTypes, Set alreadyDocumented, + TagletWriter writer) { + TagletOutput result = writer.getOutputInstance(); + if (holder instanceof MethodDoc) { + Set declaredExceptionTags = new LinkedHashSet(); + for (int j = 0; j < declaredExceptionTypes.length; j++) { + DocFinder.Output inheritedDoc = + DocFinder.search(new DocFinder.Input((MethodDoc) holder, this, + declaredExceptionTypes[j].typeName())); + if (inheritedDoc.tagList.size() == 0) { + inheritedDoc = DocFinder.search(new DocFinder.Input( + (MethodDoc) holder, this, + declaredExceptionTypes[j].qualifiedTypeName())); + } + declaredExceptionTags.addAll(inheritedDoc.tagList); + } + result.appendOutput(throwsTagsOutput( + (ThrowsTag[]) declaredExceptionTags.toArray(new ThrowsTag[] {}), + writer, alreadyDocumented, false)); + } + return result; + } + + /** + * {@inheritDoc} + */ + public TagletOutput getTagletOutput(Doc holder, TagletWriter writer) { + ExecutableMemberDoc execHolder = (ExecutableMemberDoc) holder; + ThrowsTag[] tags = execHolder.throwsTags(); + TagletOutput result = writer.getOutputInstance(); + HashSet alreadyDocumented = new HashSet(); + if (tags.length > 0) { + result.appendOutput(throwsTagsOutput( + execHolder.throwsTags(), writer, alreadyDocumented, true)); + } + result.appendOutput(inheritThrowsDocumentation(holder, + execHolder.thrownExceptionTypes(), alreadyDocumented, writer)); + result.appendOutput(linkToUndocumentedDeclaredExceptions( + execHolder.thrownExceptionTypes(), alreadyDocumented, writer)); + return result; + } + + + /** + * Given an array of Tags representing this custom + * tag, return its string representation. + * @param throwTags the array of ThrowsTags to convert. + * @param writer the TagletWriter that will write this tag. + * @param alreadyDocumented the set of exceptions that have already + * been documented. + * @param allowDups True if we allow duplicate throws tags to be documented. + * @return the TagletOutput representation of this Tag. + */ + protected TagletOutput throwsTagsOutput(ThrowsTag[] throwTags, + TagletWriter writer, Set alreadyDocumented, boolean allowDups) { + TagletOutput result = writer.getOutputInstance(); + if (throwTags.length > 0) { + for (int i = 0; i < throwTags.length; ++i) { + ThrowsTag tt = throwTags[i]; + ClassDoc cd = tt.exception(); + if ((!allowDups) && (alreadyDocumented.contains(tt.exceptionName()) || + (cd != null && alreadyDocumented.contains(cd.qualifiedName())))) { + continue; + } + if (alreadyDocumented.size() == 0) { + result.appendOutput(writer.getThrowsHeader()); + } + result.appendOutput(writer.throwsTagOutput(tt)); + alreadyDocumented.add(cd != null ? + cd.qualifiedName() : tt.exceptionName()); + } + } + return result; + } +}