import java.util.*;
import java.util.zip.*;
+
import java.io.*;
+import java.net.URI;
+import java.nio.file.DirectoryStream;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.NoSuchFileException;
+import java.nio.file.Path;
+import java.nio.file.attribute.BasicFileAttributeView;
+import java.nio.file.attribute.BasicFileAttributes;
/**
* Responsible for loading (class) files from the CLASSPATH. Inspired by
* sun.tools.ClassPath.
*
* @version $Id: ClassPath.java,v 1.5 2009/09/09 19:56:20 aclement Exp $
- * @author
<A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
*/
public class ClassPath implements Serializable {
- private static ClassPath SYSTEM_CLASS_PATH = null;
-
- private PathEntry[] paths;
- private String class_path;
-
- public static ClassPath getSystemClassPath() {
- if (SYSTEM_CLASS_PATH == null) {
- SYSTEM_CLASS_PATH = new ClassPath();
- }
- return SYSTEM_CLASS_PATH;
- }
- /**
- * Search for classes in given path.
- */
- public ClassPath(String class_path) {
- this.class_path = class_path;
-
- ArrayList<PathEntry> vec = new ArrayList<PathEntry>();
-
- for(StringTokenizer tok=new StringTokenizer(class_path,
- System.getProperty("path.separator"));
- tok.hasMoreTokens();)
- {
- String path = tok.nextToken();
-
- if(!path.equals("")) {
- File file = new File(path);
-
- try {
- if(file.exists()) {
- if(file.isDirectory())
- vec.add(new Dir(path));
- else
- vec.add(new Zip(new ZipFile(file)));
- }
- } catch(IOException e) {
- System.err.println("CLASSPATH component " + file + ": " + e);
+ private static ClassPath SYSTEM_CLASS_PATH = null;
+
+ private PathEntry[] paths;
+ private String class_path;
+
+ public static ClassPath getSystemClassPath() {
+ if (SYSTEM_CLASS_PATH == null) {
+ SYSTEM_CLASS_PATH = new ClassPath();
+ }
+ return SYSTEM_CLASS_PATH;
}
- }
- }
-
- paths = new PathEntry[vec.size()];
- vec.toArray(paths);
- }
-
- /**
- * Search for classes in CLASSPATH.
- * @deprecated Use SYSTEM_CLASS_PATH constant
- */
- public ClassPath() {
- this(getClassPath());
- }
-
- /** @return used class path string
- */
- public String toString() {
- return class_path;
- }
-
- public int hashCode() {
- return class_path.hashCode();
- }
-
- public boolean equals(Object o) {
- if(o instanceof ClassPath) {
- return class_path.equals(((ClassPath)o).class_path);
- }
-
- return false;
- }
-
- private static final void getPathComponents(String path, ArrayList<String> list) {
- if(path != null) {
- StringTokenizer tok = new StringTokenizer(path, File.pathSeparator);
-
- while(tok.hasMoreTokens()) {
- String name = tok.nextToken();
- File file = new File(name);
-
- if(file.exists())
- list.add(name);
- }
- }
- }
-
- /** Checks for class path components in the following properties:
- * "java.class.path", "sun.boot.class.path", "java.ext.dirs"
- *
- * @return class path as used by default by BCEL
- */
- public static final String getClassPath() {
- String class_path = System.getProperty("java.class.path");
- String boot_path = System.getProperty("sun.boot.class.path");
- String ext_path = System.getProperty("java.ext.dirs");
-
- ArrayList<String> list = new ArrayList<String>();
-
- getPathComponents(class_path, list);
- getPathComponents(boot_path, list);
-
- ArrayList<String> dirs = new ArrayList<String>();
- getPathComponents(ext_path, dirs);
-
- for(Iterator<String> e = dirs.iterator(); e.hasNext(); ) {
- File ext_dir = new File(e.next());
- String[] extensions = ext_dir.list(new FilenameFilter() {
- public boolean accept(File dir, String name) {
- name = name.toLowerCase();
- return name.endsWith(".zip") || name.endsWith(".jar");
+
+ /**
+ * Search for classes in given path.
+ */
+ public ClassPath(String class_path) {
+ this.class_path = class_path;
+
+ ArrayList<PathEntry> vec = new ArrayList<PathEntry>();
+
+ for (StringTokenizer tok = new StringTokenizer(class_path, System.getProperty("path.separator")); tok
+ .hasMoreTokens();) {
+ String path = tok.nextToken();
+
+ if (!path.equals("")) {
+ File file = new File(path);
+
+ try {
+ if (file.exists()) {
+ if (file.isDirectory())
+ vec.add(new Dir(path));
+ else if (file.getName().endsWith(".jimage")) {
+ vec.add(new JImage(file));
+ } else {
+ vec.add(new Zip(new ZipFile(file)));
+ }
+ }
+ } catch (IOException e) {
+ System.err.println("CLASSPATH component " + file + ": " + e);
+ }
+ }
+ }
+
+ paths = new PathEntry[vec.size()];
+ vec.toArray(paths);
}
- });
-
- if(extensions != null)
- for(int i=0; i < extensions.length; i++)
- list.add(ext_path + File.separatorChar + extensions[i]);
- }
-
- StringBuffer buf = new StringBuffer();
-
- for(Iterator<String> e = list.iterator(); e.hasNext(); ) {
- buf.append(e.next());
-
- if(e.hasNext())
- buf.append(File.pathSeparatorChar);
- }
-
- return buf.toString().intern();
- }
-
- /**
- * @param name fully qualified class name, e.g. java.lang.String
- * @return input stream for class
- */
- public InputStream getInputStream(String name) throws IOException {
- return getInputStream(name, ".class");
- }
-
- /**
- * Return stream for class or resource on CLASSPATH.
- *
- * @param name fully qualified file name, e.g. java/lang/String
- * @param suffix file name ends with suff, e.g. .java
- * @return input stream for file on class path
- */
- public InputStream getInputStream(String name, String suffix) throws IOException {
- InputStream is = null;
-
- try {
- is = getClass().getClassLoader().getResourceAsStream(name + suffix);
- } catch(Exception e) { }
-
- if(is != null)
- return is;
-
- return getClassFile(name, suffix).getInputStream();
- }
-
- /**
- * @param name fully qualified file name, e.g. java/lang/String
- * @param suffix file name ends with suff, e.g. .java
- * @return class file for the java class
- */
- public ClassFile getClassFile(String name, String suffix) throws IOException {
- for(int i=0; i < paths.length; i++) {
- ClassFile cf;
-
- if((cf = paths[i].getClassFile(name, suffix)) != null)
- return cf;
- }
-
- throw new IOException("Couldn't find: " + name + suffix);
- }
-
- /**
- * @param name fully qualified class name, e.g. java.lang.String
- * @return input stream for class
- */
- public ClassFile getClassFile(String name) throws IOException {
- return getClassFile(name, ".class");
- }
-
- /**
- * @param name fully qualified file name, e.g. java/lang/String
- * @param suffix file name ends with suffix, e.g. .java
- * @return byte array for file on class path
- */
- public byte[] getBytes(String name, String suffix) throws IOException {
- InputStream is = getInputStream(name, suffix);
-
- if(is == null)
- throw new IOException("Couldn't find: " + name + suffix);
-
- DataInputStream dis = new DataInputStream(is);
- byte[] bytes = new byte[is.available()];
- dis.readFully(bytes);
- dis.close(); is.close();
-
- return bytes;
- }
-
- /**
- * @return byte array for class
- */
- public byte[] getBytes(String name) throws IOException {
- return getBytes(name, ".class");
- }
-
- /**
- * @param name name of file to search for, e.g. java/lang/String.java
- * @return full (canonical) path for file
- */
- public String getPath(String name) throws IOException {
- int index = name.lastIndexOf('.');
- String suffix = "";
-
- if(index > 0) {
- suffix = name.substring(index);
- name = name.substring(0, index);
- }
-
- return getPath(name, suffix);
- }
-
- /**
- * @param name name of file to search for, e.g. java/lang/String
- * @param suffix file name suffix, e.g. .java
- * @return full (canonical) path for file, if it exists
- */
- public String getPath(String name, String suffix) throws IOException {
- return getClassFile(name, suffix).getPath();
- }
-
- private static abstract class PathEntry implements Serializable {
- abstract ClassFile getClassFile(String name, String suffix) throws IOException;
- }
-
- /** Contains information about file/ZIP entry of the Java class.
- */
- public interface ClassFile {
- /** @return input stream for class file.
- */
- public abstract InputStream getInputStream() throws IOException;
-
- /** @return canonical path to class file.
- */
- public abstract String getPath();
-
- /** @return base path of found class, i.e. class is contained relative
- * to that path, which may either denote a directory, or zip file
- */
- public abstract String getBase();
-
- /** @return modification time of class file.
- */
- public abstract long getTime();
-
- /** @return size of class file.
- */
- public abstract long getSize();
- }
-
- private static class Dir extends PathEntry {
- private String dir;
-
- Dir(String d) { dir = d; }
-
- ClassFile getClassFile(String name, String suffix) throws IOException {
- final File file = new File(dir + File.separatorChar +
- name.replace('.', File.separatorChar) + suffix);
-
- return file.exists()? new ClassFile() {
- public InputStream getInputStream() throws IOException { return new FileInputStream(file); }
-
- public String getPath() { try {
- return file.getCanonicalPath();
- } catch(IOException e) { return null; }
+ /**
+ * Search for classes in CLASSPATH.
+ *
+ * @deprecated Use SYSTEM_CLASS_PATH constant
+ */
+ public ClassPath() {
+ this(getClassPath());
}
- public long getTime() { return file.lastModified(); }
- public long getSize() { return file.length(); }
- public String getBase() { return dir; }
- } : null;
- }
+ /**
+ * @return used class path string
+ */
+ public String toString() {
+ return class_path;
+ }
- public String toString() { return dir; }
- }
+ public int hashCode() {
+ return class_path.hashCode();
+ }
- private static class Zip extends PathEntry {
- private ZipFile zip;
+ public boolean equals(Object o) {
+ if (o instanceof ClassPath) {
+ return class_path.equals(((ClassPath) o).class_path);
+ }
- Zip(ZipFile z) { zip = z; }
+ return false;
+ }
- ClassFile getClassFile(String name, String suffix) throws IOException {
- final ZipEntry entry = zip.getEntry(name.replace('.', '/') + suffix);
+ private static final void getPathComponents(String path, ArrayList<String> list) {
+ if (path != null) {
+ StringTokenizer tok = new StringTokenizer(path, File.pathSeparator);
- return (entry != null)? new ClassFile() {
- public InputStream getInputStream() throws IOException { return zip.getInputStream(entry); }
- public String getPath() { return entry.toString(); }
- public long getTime() { return entry.getTime(); }
- public long getSize() { return entry.getSize(); }
- public String getBase() {
- return zip.getName();
+ while (tok.hasMoreTokens()) {
+ String name = tok.nextToken();
+ File file = new File(name);
+
+ if (file.exists())
+ list.add(name);
+ }
+ }
}
- } : null;
- }
- }
-}
+ /**
+ * Checks for class path components in the following properties:
+ * "java.class.path", "sun.boot.class.path", "java.ext.dirs"
+ *
+ * @return class path as used by default by BCEL
+ */
+ public static final String getClassPath() {
+ String class_path = System.getProperty("java.class.path");
+ String boot_path = System.getProperty("sun.boot.class.path");
+ String ext_path = System.getProperty("java.ext.dirs");
+
+ ArrayList<String> list = new ArrayList<String>();
+
+ getPathComponents(class_path, list);
+ getPathComponents(boot_path, list);
+
+ ArrayList<String> dirs = new ArrayList<String>();
+ getPathComponents(ext_path, dirs);
+
+ for (Iterator<String> e = dirs.iterator(); e.hasNext();) {
+ File ext_dir = new File(e.next());
+ String[] extensions = ext_dir.list(new FilenameFilter() {
+ public boolean accept(File dir, String name) {
+ name = name.toLowerCase();
+ return name.endsWith(".zip") || name.endsWith(".jar");
+ }
+ });
+
+ if (extensions != null)
+ for (int i = 0; i < extensions.length; i++)
+ list.add(ext_path + File.separatorChar + extensions[i]);
+ }
+
+ StringBuffer buf = new StringBuffer();
+
+ for (Iterator<String> e = list.iterator(); e.hasNext();) {
+ buf.append(e.next());
+
+ if (e.hasNext())
+ buf.append(File.pathSeparatorChar);
+ }
+
+ return buf.toString().intern();
+ }
+
+ /**
+ * @param name
+ * fully qualified class name, e.g. java.lang.String
+ * @return input stream for class
+ */
+ public InputStream getInputStream(String name) throws IOException {
+ return getInputStream(name, ".class");
+ }
+
+ /**
+ * Return stream for class or resource on CLASSPATH.
+ *
+ * @param name
+ * fully qualified file name, e.g. java/lang/String
+ * @param suffix
+ * file name ends with suff, e.g. .java
+ * @return input stream for file on class path
+ */
+ public InputStream getInputStream(String name, String suffix) throws IOException {
+ InputStream is = null;
+
+ try {
+ is = getClass().getClassLoader().getResourceAsStream(name + suffix);
+ } catch (Exception e) {
+ }
+
+ if (is != null)
+ return is;
+
+ return getClassFile(name, suffix).getInputStream();
+ }
+
+ /**
+ * @param name
+ * fully qualified file name, e.g. java/lang/String
+ * @param suffix
+ * file name ends with suff, e.g. .java
+ * @return class file for the java class
+ */
+ public ClassFile getClassFile(String name, String suffix) throws IOException {
+ for (int i = 0; i < paths.length; i++) {
+ ClassFile cf;
+
+ if ((cf = paths[i].getClassFile(name, suffix)) != null)
+ return cf;
+ }
+
+ throw new IOException("Couldn't find: " + name + suffix);
+ }
+
+ /**
+ * @param name
+ * fully qualified class name, e.g. java.lang.String
+ * @return input stream for class
+ */
+ public ClassFile getClassFile(String name) throws IOException {
+ return getClassFile(name, ".class");
+ }
+
+ /**
+ * @param name
+ * fully qualified file name, e.g. java/lang/String
+ * @param suffix
+ * file name ends with suffix, e.g. .java
+ * @return byte array for file on class path
+ */
+ public byte[] getBytes(String name, String suffix) throws IOException {
+ InputStream is = getInputStream(name, suffix);
+
+ if (is == null)
+ throw new IOException("Couldn't find: " + name + suffix);
+
+ DataInputStream dis = new DataInputStream(is);
+ byte[] bytes = new byte[is.available()];
+ dis.readFully(bytes);
+ dis.close();
+ is.close();
+
+ return bytes;
+ }
+
+ /**
+ * @return byte array for class
+ */
+ public byte[] getBytes(String name) throws IOException {
+ return getBytes(name, ".class");
+ }
+
+ /**
+ * @param name
+ * name of file to search for, e.g. java/lang/String.java
+ * @return full (canonical) path for file
+ */
+ public String getPath(String name) throws IOException {
+ int index = name.lastIndexOf('.');
+ String suffix = "";
+
+ if (index > 0) {
+ suffix = name.substring(index);
+ name = name.substring(0, index);
+ }
+
+ return getPath(name, suffix);
+ }
+
+ /**
+ * @param name
+ * name of file to search for, e.g. java/lang/String
+ * @param suffix
+ * file name suffix, e.g. .java
+ * @return full (canonical) path for file, if it exists
+ */
+ public String getPath(String name, String suffix) throws IOException {
+ return getClassFile(name, suffix).getPath();
+ }
+
+ private static abstract class PathEntry implements Serializable {
+ abstract ClassFile getClassFile(String name, String suffix) throws IOException;
+ }
+
+ /**
+ * Contains information about file/ZIP entry of the Java class.
+ */
+ public interface ClassFile {
+ /**
+ * @return input stream for class file.
+ */
+ public abstract InputStream getInputStream() throws IOException;
+
+ /**
+ * @return canonical path to class file.
+ */
+ public abstract String getPath();
+
+ /**
+ * @return base path of found class, i.e. class is contained relative to
+ * that path, which may either denote a directory, or zip file
+ */
+ public abstract String getBase();
+
+ /**
+ * @return modification time of class file.
+ */
+ public abstract long getTime();
+
+ /**
+ * @return size of class file.
+ */
+ public abstract long getSize();
+ }
+
+ private static class Dir extends PathEntry {
+ private String dir;
+
+ Dir(String d) {
+ dir = d;
+ }
+
+ ClassFile getClassFile(String name, String suffix) throws IOException {
+ final File file = new File(dir + File.separatorChar + name.replace('.', File.separatorChar) + suffix);
+
+ return file.exists() ? new ClassFile() {
+ public InputStream getInputStream() throws IOException {
+ return new FileInputStream(file);
+ }
+
+ public String getPath() {
+ try {
+ return file.getCanonicalPath();
+ } catch (IOException e) {
+ return null;
+ }
+
+ }
+
+ public long getTime() {
+ return file.lastModified();
+ }
+
+ public long getSize() {
+ return file.length();
+ }
+
+ public String getBase() {
+ return dir;
+ }
+ } : null;
+ }
+
+ public String toString() {
+ return dir;
+ }
+ }
+
+ private static class JImage extends PathEntry {
+ private java.nio.file.FileSystem fs;
+
+ private static URI JRT_URI = URI.create("jrt:/"); //$NON-NLS-1$
+
+ private static String MODULES_PATH = "modules"; //$NON-NLS-1$
+ private static String JAVA_BASE_PATH = "java.base"; //$NON-NLS-1$
+
+
+ JImage(File jimage) {
+ // TODO bizarre that you use getFileSystem with just the jrt:/ and not the path !! What happens
+ // if there are two?
+ fs = FileSystems.getFileSystem(JRT_URI);//.create(jimage.getAbsolutePath()));
+ }
+
+ private static class ByteBasedClassFile implements ClassFile {
+
+ private byte[] bytes;
+ private ByteArrayInputStream bais;
+ private String path;
+ private String base;
+ private long time;
+ private long size;
+
+ public ByteBasedClassFile(byte[] bytes, String path, String base, long time, long size) {
+ this.bytes = bytes;
+ this.path = path;
+ this.base = base;
+ this.time = time;
+ this.size = size;
+ }
+
+ public InputStream getInputStream() throws IOException {
+ // TODO too costly to keep these in inflated form in memory?
+ this.bais = new ByteArrayInputStream(bytes);
+ return this.bais;
+ }
+
+ public String getPath() {
+ return this.path;
+ }
+
+ public String getBase() {
+ return this.base;
+ }
+
+ public long getTime() {
+ return this.time;
+ }
+
+ public long getSize() {
+ return this.size;
+ }
+
+ }
+
+ ClassFile getClassFile(String name, String suffix) throws IOException {
+ // Class files are in here under names like this:
+ // /modules/java.base/java/lang/Object.class (jdk9 b74)
+ // so within a modules top level qualifier and then the java.base module
+ String fileName = name + suffix;
+ try {
+ Path p = fs.getPath(MODULES_PATH,JAVA_BASE_PATH,fileName);
+ byte[] bs = Files.readAllBytes(p);
+ BasicFileAttributeView bfav = Files.getFileAttributeView(p, BasicFileAttributeView.class);
+ BasicFileAttributes bfas = bfav.readAttributes();
+ long time = bfas.lastModifiedTime().toMillis();
+ long size = bfas.size();
+ return new ByteBasedClassFile(bs, "jimage",fileName,time,size);
+ } catch (NoSuchFileException nsfe) {
+ // try other modules!
+ Iterable<java.nio.file.Path> roots = fs.getRootDirectories();
+ roots = fs.getRootDirectories();
+ for (java.nio.file.Path path : roots) {
+ DirectoryStream<java.nio.file.Path> stream = Files.newDirectoryStream(path);
+ try {
+ for (java.nio.file.Path module: stream) {
+ // module will be something like /packages or /modules
+ for (java.nio.file.Path submodule: Files.newDirectoryStream(module)) {
+ // submodule will be /modules/java.base or somesuch
+ try {
+ Path p = fs.getPath(submodule.toString(), fileName);
+ byte[] bs = Files.readAllBytes(p);
+ BasicFileAttributeView bfav = Files.getFileAttributeView(p, BasicFileAttributeView.class);
+ BasicFileAttributes bfas = bfav.readAttributes();
+ long time = bfas.lastModifiedTime().toMillis();
+ long size = bfas.size();
+ return new ByteBasedClassFile(bs, "jimage", fileName,time,size);
+ } catch (NoSuchFileException nsfe2) {
+ }
+ }
+ }
+ } finally {
+ stream.close();
+ }
+ }
+ return null;
+ }
+ }
+ }
+
+ private static class Zip extends PathEntry {
+ private ZipFile zip;
+
+ Zip(ZipFile z) {
+ zip = z;
+ }
+
+ ClassFile getClassFile(String name, String suffix) throws IOException {
+ final ZipEntry entry = zip.getEntry(name.replace('.', '/') + suffix);
+
+ return (entry != null) ? new ClassFile() {
+ public InputStream getInputStream() throws IOException {
+ return zip.getInputStream(entry);
+ }
+
+ public String getPath() {
+ return entry.toString();
+ }
+
+ public long getTime() {
+ return entry.getTime();
+ }
+
+ public long getSize() {
+ return entry.getSize();
+ }
+
+ public String getBase() {
+ return zip.getName();
+ }
+ } : null;
+ }
+ }
+}
projects / aspectj.git / commitdiff