--- a/langtools/src/share/classes/com/sun/mirror/util/DeclarationFilter.java Tue Feb 21 05:44:29 2012 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,319 +0,0 @@
-/*
- * Copyright (c) 2004, 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.mirror.util;
-
-
-import java.util.ArrayList;
-import java.util.Collection;
-
-import com.sun.mirror.declaration.Declaration;
-import com.sun.mirror.declaration.Modifier;
-
-import static com.sun.mirror.declaration.Modifier.*;
-
-
-/**
- * A filter for selecting just the items of interest
- * from a collection of declarations.
- * The filter is said to <i>select</i> or to <i>match</i> those declarations.
- * Filters can be created in several ways:
- * by the static methods described below,
- * by negating or composing existing filters,
- * or by subclasses that implement arbitrary matching rules.
- *
- * <p> A subclass can create an arbitrary filter simply by implementing
- * the {@link #matches(Declaration)} method.
- *
- * <p> Examples.
- * <p> Selecting the <tt>public</tt> declarations from a collection:
- * <blockquote><pre>
- * result = FILTER_PUBLIC.filter(decls); </pre></blockquote>
- * Selecting class declarations (including enums):
- * <blockquote><pre>
- * classFilter = DeclarationFilter.getFilter(ClassDeclaration.class);
- * result = classFilter.filter(decls); </pre></blockquote>
- * Selecting class declarations but excluding enums:
- * <blockquote><pre>
- * enumFilter = DeclarationFilter.getFilter(EnumDeclaration.class);
- * compoundFilter = classFilter.and(enumFilter.not());
- * result = compoundFilter.filter(decls); </pre></blockquote>
- * Selecting declarations named "Bob":
- * <blockquote><pre>
- * nameFilter = new DeclarationFilter() {
- * public boolean matches(Declaration d) {
- * return d.getSimpleName().equals("Bob");
- * }
- * };
- * result = nameFilter.filter(decls); </pre></blockquote>
- *
- * @deprecated All components of this API have been superseded by the
- * standardized annotation processing API. The replacement for the
- * functionality of this class is {@link
- * javax.lang.model.util.ElementFilter}.
- *
- * @author Joseph D. Darcy
- * @author Scott Seligman
- * @since 1.5
- */
-@Deprecated
-@SuppressWarnings("deprecation")
-public class DeclarationFilter {
-
- // Predefined filters for convenience.
-
- /**
- * A filter that selects only <tt>public</tt> declarations.
- */
- public static final DeclarationFilter FILTER_PUBLIC =
- new AccessFilter(PUBLIC);
-
- /**
- * A filter that selects only <tt>protected</tt> declarations.
- */
- public static final DeclarationFilter FILTER_PROTECTED =
- new AccessFilter(PROTECTED);
-
- /**
- * A filter that selects only <tt>public</tt> or <tt>protected</tt>
- * declarations.
- */
- public static final DeclarationFilter FILTER_PUBLIC_OR_PROTECTED =
- new AccessFilter(PUBLIC, PROTECTED);
-
- /**
- * A filter that selects only package-private (<i>default</i>)
- * declarations.
- */
- public static final DeclarationFilter FILTER_PACKAGE =
- new AccessFilter();
-
- /**
- * A filter that selects only <tt>private</tt> declarations.
- */
- public static final DeclarationFilter FILTER_PRIVATE =
- new AccessFilter(PRIVATE);
-
-
- /**
- * Constructs an identity filter: one that selects all declarations.
- */
- public DeclarationFilter() {
- }
-
-
-
- // Methods to create a filter.
-
- /**
- * Returns a filter that selects declarations containing all of a
- * collection of modifiers.
- *
- * @param mods the modifiers to match (non-null)
- * @return a filter that matches declarations containing <tt>mods</tt>
- */
- public static DeclarationFilter getFilter(
- final Collection<Modifier> mods) {
- return new DeclarationFilter() {
- public boolean matches(Declaration d) {
- return d.getModifiers().containsAll(mods);
- }
- };
- }
-
- /**
- * Returns a filter that selects declarations of a particular kind.
- * For example, there may be a filter that selects only class
- * declarations, or only fields.
- * The filter will select declarations of the specified kind,
- * and also any subtypes of that kind; for example, a field filter
- * will also select enum constants.
- *
- * @param kind the kind of declarations to select
- * @return a filter that selects declarations of a particular kind
- */
- public static DeclarationFilter getFilter(
- final Class<? extends Declaration> kind) {
- return new DeclarationFilter() {
- public boolean matches(Declaration d) {
- return kind.isInstance(d);
- }
- };
- }
-
- /**
- * Returns a filter that selects those declarations selected
- * by both this filter and another.
- *
- * @param f filter to be composed with this one
- * @return a filter that selects those declarations selected by
- * both this filter and another
- */
- public DeclarationFilter and(DeclarationFilter f) {
- final DeclarationFilter f1 = this;
- final DeclarationFilter f2 = f;
- return new DeclarationFilter() {
- public boolean matches(Declaration d) {
- return f1.matches(d) && f2.matches(d);
- }
- };
- }
-
- /**
- * Returns a filter that selects those declarations selected
- * by either this filter or another.
- *
- * @param f filter to be composed with this one
- * @return a filter that selects those declarations selected by
- * either this filter or another
- */
- public DeclarationFilter or(DeclarationFilter f) {
- final DeclarationFilter f1 = this;
- final DeclarationFilter f2 = f;
- return new DeclarationFilter() {
- public boolean matches(Declaration d) {
- return f1.matches(d) || f2.matches(d);
- }
- };
- }
-
- /**
- * Returns a filter that selects those declarations not selected
- * by this filter.
- *
- * @return a filter that selects those declarations not selected
- * by this filter
- */
- public DeclarationFilter not() {
- return new DeclarationFilter() {
- public boolean matches(Declaration d) {
- return !DeclarationFilter.this.matches(d);
- }
- };
- }
-
-
-
- // Methods to apply a filter.
-
- /**
- * Tests whether this filter matches a given declaration.
- * The default implementation always returns <tt>true</tt>;
- * subclasses should override this.
- *
- * @param decl the declaration to match
- * @return <tt>true</tt> if this filter matches the given declaration
- */
- public boolean matches(Declaration decl) {
- return true;
- }
-
- /**
- * Returns the declarations matched by this filter.
- * The result is a collection of the same type as the argument;
- * the {@linkplain #filter(Collection, Class) two-parameter version}
- * of <tt>filter</tt> offers control over the result type.
- *
- * @param <D> type of the declarations being filtered
- * @param decls declarations being filtered
- * @return the declarations matched by this filter
- */
- public <D extends Declaration> Collection<D> filter(Collection<D> decls) {
- ArrayList<D> res = new ArrayList<D>(decls.size());
- for (D d : decls) {
- if (matches(d)) {
- res.add(d);
- }
- }
- return res;
- }
-
- /**
- * Returns the declarations matched by this filter, with the result
- * being restricted to declarations of a given kind.
- * Similar to the simpler
- * {@linkplain #filter(Collection) single-parameter version}
- * of <tt>filter</tt>, but the result type is specified explicitly.
- *
- * @param <D> type of the declarations being returned
- * @param decls declarations being filtered
- * @param resType type of the declarations being returned --
- * the reflective view of <tt>D</tt>
- * @return the declarations matched by this filter, restricted to those
- * of the specified type
- */
- public <D extends Declaration> Collection<D>
- filter(Collection<? extends Declaration> decls, Class<D> resType) {
- ArrayList<D> res = new ArrayList<D>(decls.size());
- for (Declaration d : decls) {
- if (resType.isInstance(d) && matches(d)) {
- res.add(resType.cast(d));
- }
- }
- return res;
- }
-
-
-
- /*
- * A filter based on access modifiers.
- */
- private static class AccessFilter extends DeclarationFilter {
-
- // The first access modifier to filter on, or null if we're looking
- // for declarations with no access modifiers.
- private Modifier mod1 = null;
-
- // The second access modifier to filter on, or null if none.
- private Modifier mod2 = null;
-
- // Returns a filter that matches declarations with no access
- // modifiers.
- AccessFilter() {
- }
-
- // Returns a filter that matches m.
- AccessFilter(Modifier m) {
- mod1 = m;
- }
-
- // Returns a filter that matches either m1 or m2.
- AccessFilter(Modifier m1, Modifier m2) {
- mod1 = m1;
- mod2 = m2;
- }
-
- public boolean matches(Declaration d) {
- Collection<Modifier> mods = d.getModifiers();
- if (mod1 == null) { // looking for package private
- return !(mods.contains(PUBLIC) ||
- mods.contains(PROTECTED) ||
- mods.contains(PRIVATE));
- }
- return mods.contains(mod1) &&
- (mod2 == null || mods.contains(mod2));
- }
- }
-}