langtools/src/jdk.javadoc/share/classes/com/sun/tools/javadoc/main/PackageDocImpl.java
changeset 37938 42baa89d2156
parent 36526 3b41f1c69604
child 38617 d93a7f64e231
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.javadoc/share/classes/com/sun/tools/javadoc/main/PackageDocImpl.java	Mon May 09 16:52:15 2016 -0700
@@ -0,0 +1,389 @@
+/*
+ * Copyright (c) 1997, 2015, 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.main;
+
+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.Symbol;
+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;
+
+import static com.sun.tools.javac.code.Scope.LookupKind.NON_RECURSIVE;
+
+/**
+ * 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 {
+
+    public final 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<>();
+        for (Symbol enumerated : sym.members().getSymbols(NON_RECURSIVE)) {
+            if (enumerated != null) {
+                ClassSymbol s = (ClassSymbol)enumerated;
+                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<>();
+        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<>();
+        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<>();
+        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<>();
+        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<>();
+        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<>();
+        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() {
+        if (qualifiedName == null) {
+            Name fullname = sym.getQualifiedName();
+            // Some bogus tests depend on the interned "" being returned.
+            // See 6457276.
+            qualifiedName = fullname.isEmpty() ? "" : fullname.toString();
+        }
+        return qualifiedName;
+    }
+
+    private String qualifiedName;
+
+    /**
+     * 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);
+    }
+}