Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 1997, 2012, 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.javadoc;

 import java.io.IOException;

 import java.io.InputStream;

 import javax.tools.FileObject;

 import com.sun.javadoc.*;

 import com.sun.source.util.TreePath;

 import com.sun.tools.javac.code.Attribute;

 import com.sun.tools.javac.code.Scope;

 import com.sun.tools.javac.code.Symbol.ClassSymbol;

 import com.sun.tools.javac.code.Symbol.PackageSymbol;

 import com.sun.tools.javac.tree.JCTree;

 import com.sun.tools.javac.tree.JCTree.JCCompilationUnit;

 import com.sun.tools.javac.util.List;

 import com.sun.tools.javac.util.ListBuffer;

 import com.sun.tools.javac.util.Name;

 import com.sun.tools.javac.util.Position;

 /**

  * Represents a java package.  Provides access to information

  * about the package, the package's comment and tags, and the

  * classes in the package.

  *

  *  <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>

  *

  * @since 1.2

  * @author Kaiyang Liu (original)

  * @author Robert Field (rewrite)

  * @author Neal Gafter (rewrite)

  * @author Scott Seligman (package-info.java)

  */

 public class PackageDocImpl extends DocImpl implements PackageDoc {

     protected PackageSymbol sym;

     private JCCompilationUnit tree = null;    // for source position

     public FileObject docPath = null;

     private boolean foundDoc;   // found a doc comment in either

                                 // package.html or package-info.java

     boolean isIncluded = false;  // Set in RootDocImpl.

     public boolean setDocPath = false;  //Flag to avoid setting doc path multiple times.

     /**

      * Constructor

      */

     public PackageDocImpl(DocEnv env, PackageSymbol sym) {

         this(env, sym, null);

     }

     /**

      * Constructor

      */

     public PackageDocImpl(DocEnv env, PackageSymbol sym, TreePath treePath) {

         super(env, treePath);

         this.sym = sym;

         this.tree = (treePath == null) ? null : (JCCompilationUnit) treePath.getCompilationUnit();

         foundDoc = (documentation != null);

     }

     void setTree(JCTree tree) {

         this.tree = (JCCompilationUnit) tree;

     }

     public void setTreePath(TreePath treePath) {

         super.setTreePath(treePath);

         checkDoc();

     }

     /**

      * Do lazy initialization of "documentation" string.

      */

     protected String documentation() {

         if (documentation != null)

             return documentation;

         if (docPath != null) {

             // read from file

             try {

                 InputStream s = docPath.openInputStream();

                 documentation = readHTMLDocumentation(s, docPath);

             } catch (IOException exc) {

                 documentation = "";

                 env.error(null, "javadoc.File_Read_Error", docPath.getName());

             }

         } else {

             // no doc file to be had

             documentation = "";

         }

         return documentation;

     }

     /**

      * Cache of all classes contained in this package, including

      * member classes of those classes, and their member classes, etc.

      * Includes only those classes at the specified protection level

      * and weaker.

      */

     private List<ClassDocImpl> allClassesFiltered = null;

     /**

      * Cache of all classes contained in this package, including

      * member classes of those classes, and their member classes, etc.

      */

     private List<ClassDocImpl> allClasses = null;

     /**

      * Return a list of all classes contained in this package, including

      * member classes of those classes, and their member classes, etc.

      */

     private List<ClassDocImpl> getClasses(boolean filtered) {

         if (allClasses != null && !filtered) {

             return allClasses;

         }

         if (allClassesFiltered != null && filtered) {

             return allClassesFiltered;

         }

         ListBuffer<ClassDocImpl> classes = new ListBuffer<ClassDocImpl>();

         for (Scope.Entry e = sym.members().elems; e != null; e = e.sibling) {

             if (e.sym != null) {

                 ClassSymbol s = (ClassSymbol)e.sym;

                 ClassDocImpl c = env.getClassDoc(s);

                 if (c != null && !c.isSynthetic())

                     c.addAllClasses(classes, filtered);

             }

         }

         if (filtered)

             return allClassesFiltered = classes.toList();

         else

             return allClasses = classes.toList();

     }

     /**

      * Add all included classes (including Exceptions and Errors)

      * and interfaces.

      */

     public void addAllClassesTo(ListBuffer<ClassDocImpl> list) {

         list.appendList(getClasses(true));

     }

     /**

      * Get all classes (including Exceptions and Errors)

      * and interfaces.

      * @since J2SE1.4.

      *

      * @return all classes and interfaces in this package, filtered to include

      * only the included classes if filter==true.

      */

     public ClassDoc[] allClasses(boolean filter) {

         List<ClassDocImpl> classes = getClasses(filter);

         return classes.toArray(new ClassDocImpl[classes.length()]);

     }

     /**

      * Get all included classes (including Exceptions and Errors)

      * and interfaces.  Same as allClasses(true).

      *

      * @return all included classes and interfaces in this package.

      */

     public ClassDoc[] allClasses() {

         return allClasses(true);

     }

     /**

      * Get ordinary classes (that is, exclude exceptions, errors,

      * enums, interfaces, and annotation types) in this package.

      *

      * @return included ordinary classes in this package.

      */

     public ClassDoc[] ordinaryClasses() {

         ListBuffer<ClassDocImpl> ret = new ListBuffer<ClassDocImpl>();

         for (ClassDocImpl c : getClasses(true)) {

             if (c.isOrdinaryClass()) {

                 ret.append(c);

             }

         }

         return ret.toArray(new ClassDocImpl[ret.length()]);

     }

     /**

      * Get Exception classes in this package.

      *

      * @return included Exceptions in this package.

      */

     public ClassDoc[] exceptions() {

         ListBuffer<ClassDocImpl> ret = new ListBuffer<ClassDocImpl>();

         for (ClassDocImpl c : getClasses(true)) {

             if (c.isException()) {

                 ret.append(c);

             }

         }

         return ret.toArray(new ClassDocImpl[ret.length()]);

     }

     /**

      * Get Error classes in this package.

      *

      * @return included Errors in this package.

      */

     public ClassDoc[] errors() {

         ListBuffer<ClassDocImpl> ret = new ListBuffer<ClassDocImpl>();

         for (ClassDocImpl c : getClasses(true)) {

             if (c.isError()) {

                 ret.append(c);

             }

         }

         return ret.toArray(new ClassDocImpl[ret.length()]);

     }

     /**

      * Get included enum types in this package.

      *

      * @return included enum types in this package.

      */

     public ClassDoc[] enums() {

         ListBuffer<ClassDocImpl> ret = new ListBuffer<ClassDocImpl>();

         for (ClassDocImpl c : getClasses(true)) {

             if (c.isEnum()) {

                 ret.append(c);

             }

         }

         return ret.toArray(new ClassDocImpl[ret.length()]);

     }

     /**

      * Get included interfaces in this package, omitting annotation types.

      *

      * @return included interfaces in this package.

      */

     public ClassDoc[] interfaces() {

         ListBuffer<ClassDocImpl> ret = new ListBuffer<ClassDocImpl>();

         for (ClassDocImpl c : getClasses(true)) {

             if (c.isInterface()) {

                 ret.append(c);

             }

         }

         return ret.toArray(new ClassDocImpl[ret.length()]);

     }

     /**

      * Get included annotation types in this package.

      *

      * @return included annotation types in this package.

      */

     public AnnotationTypeDoc[] annotationTypes() {

         ListBuffer<AnnotationTypeDocImpl> ret =

             new ListBuffer<AnnotationTypeDocImpl>();

         for (ClassDocImpl c : getClasses(true)) {

             if (c.isAnnotationType()) {

                 ret.append((AnnotationTypeDocImpl)c);

             }

         }

         return ret.toArray(new AnnotationTypeDocImpl[ret.length()]);

     }

     /**

      * Get the annotations of this package.

      * Return an empty array if there are none.

      */

     public AnnotationDesc[] annotations() {

         AnnotationDesc res[] = new AnnotationDesc[sym.getRawAttributes().length()];

         int i = 0;

         for (Attribute.Compound a : sym.getRawAttributes()) {

             res[i++] = new AnnotationDescImpl(env, a);

         }

         return res;

     }

     /**

      * Lookup for a class within this package.

      *

      * @return ClassDocImpl of found class, or null if not found.

      */

     public ClassDoc findClass(String className) {

         final boolean filtered = true;

         for (ClassDocImpl c : getClasses(filtered)) {

             if (c.name().equals(className)) {

                 return c;

             }

         }

         return null;

     }

     /**

      * Return true if this package is included in the active set.

      */

     public boolean isIncluded() {

         return isIncluded;

     }

     /**

      * Get package name.

      *

      * Note that we do not provide a means of obtaining the simple

      * name of a package -- package names are always returned in their

      * uniquely qualified form.

      */

     public String name() {

         return qualifiedName();

     }

     /**

      * Get package name.

      */

     public String qualifiedName() {

         Name fullname = sym.getQualifiedName();

         // Some bogus tests depend on the interned "" being returned.

         // See 6457276.

         return fullname.isEmpty() ? "" : fullname.toString();

     }

     /**

      * set doc path for an unzipped directory

      */

     public void setDocPath(FileObject path) {

         setDocPath = true;

         if (path == null)

             return;

         if (!path.equals(docPath)) {

             docPath = path;

             checkDoc();

         }

     }

     // Has checkDoc() sounded off yet?

     private boolean checkDocWarningEmitted = false;

     /**

      * Invoked when a source of package doc comments is located.

      * Emits a diagnostic if this is the second one.

      */

     private void checkDoc() {

         if (foundDoc) {

             if (!checkDocWarningEmitted) {

                 env.warning(null, "javadoc.Multiple_package_comments", name());

                 checkDocWarningEmitted = true;

             }

         } else {

             foundDoc = true;

         }

     }

     /**

      * Return the source position of the entity, or null if

      * no position is available.

      */

     public SourcePosition position() {

         return (tree != null)

                 ? SourcePositionImpl.make(tree.sourcefile, tree.pos, tree.lineMap)

                 : SourcePositionImpl.make(docPath, Position.NOPOS, null);

     }

 }