--- a/langtools/src/jdk.dev/share/classes/com/sun/tools/jdeps/ClassFileReader.java Thu May 28 16:13:55 2015 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,398 +0,0 @@
-/*
- * Copyright (c) 2012, 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.jdeps;
-
-import com.sun.tools.classfile.ClassFile;
-import com.sun.tools.classfile.ConstantPoolException;
-import com.sun.tools.classfile.Dependencies.ClassFileError;
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.FileSystem;
-import java.nio.file.FileSystems;
-import java.nio.file.FileVisitResult;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.SimpleFileVisitor;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.util.*;
-import java.util.jar.JarEntry;
-import java.util.jar.JarFile;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-/**
- * ClassFileReader reads ClassFile(s) of a given path that can be
- * a .class file, a directory, or a JAR file.
- */
-public class ClassFileReader {
- /**
- * Returns a ClassFileReader instance of a given path.
- */
- public static ClassFileReader newInstance(Path path) throws IOException {
- if (!Files.exists(path)) {
- throw new FileNotFoundException(path.toString());
- }
-
- if (Files.isDirectory(path)) {
- return new DirectoryReader(path);
- } else if (path.getFileName().toString().endsWith(".jar")) {
- return new JarFileReader(path);
- } else {
- return new ClassFileReader(path);
- }
- }
-
- /**
- * Returns a ClassFileReader instance of a given JarFile.
- */
- public static ClassFileReader newInstance(Path path, JarFile jf) throws IOException {
- return new JarFileReader(path, jf);
- }
-
- protected final Path path;
- protected final String baseFileName;
- protected final List<String> skippedEntries = new ArrayList<>();
- protected ClassFileReader(Path path) {
- this.path = path;
- this.baseFileName = path.getFileName() != null
- ? path.getFileName().toString()
- : path.toString();
- }
-
- public String getFileName() {
- return baseFileName;
- }
-
- public List<String> skippedEntries() {
- return skippedEntries;
- }
-
- /**
- * Returns the ClassFile matching the given binary name
- * or a fully-qualified class name.
- */
- public ClassFile getClassFile(String name) throws IOException {
- if (name.indexOf('.') > 0) {
- int i = name.lastIndexOf('.');
- String pathname = name.replace('.', File.separatorChar) + ".class";
- if (baseFileName.equals(pathname) ||
- baseFileName.equals(pathname.substring(0, i) + "$" +
- pathname.substring(i+1, pathname.length()))) {
- return readClassFile(path);
- }
- } else {
- if (baseFileName.equals(name.replace('/', File.separatorChar) + ".class")) {
- return readClassFile(path);
- }
- }
- return null;
- }
-
- public Iterable<ClassFile> getClassFiles() throws IOException {
- return new Iterable<ClassFile>() {
- public Iterator<ClassFile> iterator() {
- return new FileIterator();
- }
- };
- }
-
- protected ClassFile readClassFile(Path p) throws IOException {
- InputStream is = null;
- try {
- is = Files.newInputStream(p);
- return ClassFile.read(is);
- } catch (ConstantPoolException e) {
- throw new ClassFileError(e);
- } finally {
- if (is != null) {
- is.close();
- }
- }
- }
-
- class FileIterator implements Iterator<ClassFile> {
- int count;
- FileIterator() {
- this.count = 0;
- }
- public boolean hasNext() {
- return count == 0 && baseFileName.endsWith(".class");
- }
-
- public ClassFile next() {
- if (!hasNext()) {
- throw new NoSuchElementException();
- }
- try {
- ClassFile cf = readClassFile(path);
- count++;
- return cf;
- } catch (IOException e) {
- throw new ClassFileError(e);
- }
- }
-
- public void remove() {
- throw new UnsupportedOperationException("Not supported yet.");
- }
- }
-
- public String toString() {
- return path.toString();
- }
-
- private static class DirectoryReader extends ClassFileReader {
- protected final String fsSep;
- DirectoryReader(Path path) throws IOException {
- this(FileSystems.getDefault(), path);
- }
- DirectoryReader(FileSystem fs, Path path) throws IOException {
- super(path);
- this.fsSep = fs.getSeparator();
- }
-
- public ClassFile getClassFile(String name) throws IOException {
- if (name.indexOf('.') > 0) {
- int i = name.lastIndexOf('.');
- String pathname = name.replace(".", fsSep) + ".class";
- Path p = path.resolve(pathname);
- if (!Files.exists(p)) {
- p = path.resolve(pathname.substring(0, i) + "$" +
- pathname.substring(i+1, pathname.length()));
- }
- if (Files.exists(p)) {
- return readClassFile(p);
- }
- } else {
- Path p = path.resolve(name + ".class");
- if (Files.exists(p)) {
- return readClassFile(p);
- }
- }
- return null;
- }
-
- public Iterable<ClassFile> getClassFiles() throws IOException {
- final Iterator<ClassFile> iter = new DirectoryIterator();
- return new Iterable<ClassFile>() {
- public Iterator<ClassFile> iterator() {
- return iter;
- }
- };
- }
-
- private List<Path> entries;
- protected synchronized List<Path> walkTree() throws IOException {
- if (entries == null) {
- entries = new ArrayList<>();
- Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
- public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
- throws IOException {
- if (file.getFileName().toString().endsWith(".class")) {
- entries.add(file);
- }
- return FileVisitResult.CONTINUE;
- }
- });
- }
- return entries;
- }
-
- class DirectoryIterator implements Iterator<ClassFile> {
- private List<Path> entries;
- private int index = 0;
- DirectoryIterator() throws IOException {
- entries = walkTree();
- index = 0;
- }
-
- public boolean hasNext() {
- return index != entries.size();
- }
-
- public ClassFile next() {
- if (!hasNext()) {
- throw new NoSuchElementException();
- }
- Path path = entries.get(index++);
- try {
- return readClassFile(path);
- } catch (IOException e) {
- throw new ClassFileError(e);
- }
- }
-
- public void remove() {
- throw new UnsupportedOperationException("Not supported yet.");
- }
- }
- }
-
- static class JarFileReader extends ClassFileReader {
- private final JarFile jarfile;
- JarFileReader(Path path) throws IOException {
- this(path, new JarFile(path.toFile(), false));
- }
-
- JarFileReader(Path path, JarFile jf) throws IOException {
- super(path);
- this.jarfile = jf;
- }
-
- public ClassFile getClassFile(String name) throws IOException {
- if (name.indexOf('.') > 0) {
- int i = name.lastIndexOf('.');
- String entryName = name.replace('.', '/') + ".class";
- JarEntry e = jarfile.getJarEntry(entryName);
- if (e == null) {
- e = jarfile.getJarEntry(entryName.substring(0, i) + "$"
- + entryName.substring(i + 1, entryName.length()));
- }
- if (e != null) {
- return readClassFile(jarfile, e);
- }
- } else {
- JarEntry e = jarfile.getJarEntry(name + ".class");
- if (e != null) {
- return readClassFile(jarfile, e);
- }
- }
- return null;
- }
-
- protected ClassFile readClassFile(JarFile jarfile, JarEntry e) throws IOException {
- InputStream is = null;
- try {
- is = jarfile.getInputStream(e);
- return ClassFile.read(is);
- } catch (ConstantPoolException ex) {
- throw new ClassFileError(ex);
- } finally {
- if (is != null)
- is.close();
- }
- }
-
- public Iterable<ClassFile> getClassFiles() throws IOException {
- final Iterator<ClassFile> iter = new JarFileIterator(this, jarfile);
- return new Iterable<ClassFile>() {
- public Iterator<ClassFile> iterator() {
- return iter;
- }
- };
- }
- }
-
- class JarFileIterator implements Iterator<ClassFile> {
- protected final JarFileReader reader;
- protected Enumeration<JarEntry> entries;
- protected JarFile jf;
- protected JarEntry nextEntry;
- protected ClassFile cf;
- JarFileIterator(JarFileReader reader) {
- this(reader, null);
- }
- JarFileIterator(JarFileReader reader, JarFile jarfile) {
- this.reader = reader;
- setJarFile(jarfile);
- }
-
- void setJarFile(JarFile jarfile) {
- if (jarfile == null) return;
-
- this.jf = jarfile;
- this.entries = jf.entries();
- this.nextEntry = nextEntry();
- }
-
- public boolean hasNext() {
- if (nextEntry != null && cf != null) {
- return true;
- }
- while (nextEntry != null) {
- try {
- cf = reader.readClassFile(jf, nextEntry);
- return true;
- } catch (ClassFileError | IOException ex) {
- skippedEntries.add(nextEntry.getName());
- }
- nextEntry = nextEntry();
- }
- return false;
- }
-
- public ClassFile next() {
- if (!hasNext()) {
- throw new NoSuchElementException();
- }
- ClassFile classFile = cf;
- cf = null;
- nextEntry = nextEntry();
- return classFile;
- }
-
- protected JarEntry nextEntry() {
- while (entries.hasMoreElements()) {
- JarEntry e = entries.nextElement();
- String name = e.getName();
- if (name.endsWith(".class")) {
- return e;
- }
- }
- return null;
- }
-
- public void remove() {
- throw new UnsupportedOperationException("Not supported yet.");
- }
- }
-
- /**
- * ClassFileReader for modules.
- */
- static class ModuleClassReader extends DirectoryReader {
- final String modulename;
- ModuleClassReader(FileSystem fs, String mn, Path root) throws IOException {
- super(fs, root);
- this.modulename = mn;
- }
-
- public Set<String> packages() throws IOException {
- return walkTree().stream()
- .map(this::toPackageName)
- .sorted()
- .collect(Collectors.toSet());
- }
-
- String toPackageName(Path p) {
- if (p.getParent() == null) {
- return "";
- }
- return path.relativize(p.getParent()).toString().replace(fsSep, ".");
- }
- }
-}