info.monitorenter.cpdetector.io.JarArchive Maven / Gradle / Ivy
/*
*
* JarArchive.java cpdetector
* Copyright (C) Achim Westermann, created on 30.10.2004, 01:39:02
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this collection are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the cpDetector code in [sub] packages info.monitorenter and
* cpdetector.
*
* The Initial Developer of the Original Code is
* Achim Westermann .
*
* Portions created by the Initial Developer are Copyright (c) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** *
*
* If you modify or optimize the code in a useful way please let me know.
* [email protected]
*/
package info.monitorenter.cpdetector.io;
import info.monitorenter.cpdetector.util.collections.ITreeNode;
import info.monitorenter.cpdetector.util.collections.TreeNodeUniqueChildren;
import java.io.File;
import java.io.FileFilter;
import java.io.FilenameFilter;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TreeSet;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
/**
* A jar file that pretends to be a simple file by extending {@link java.io.File}.
*
*
* @author Achim Westermann
*
*/
public class JarArchive extends File {
protected JarFile jar;
protected Set childs = new TreeSet();
/**
* @param pathname
* @throws java.io.IOException
*/
public JarArchive(String pathname)
throws IOException {
super(pathname);
this.jar = new JarFile(pathname);
ITreeNode root = this.parseTree();
System.out.println("tree:");
System.out.println(root.toString() + '\n');
this.buildTree(root, this);
}
/**
* Only for the subclass to avoid double-parsing.
*/
private JarArchive(File f) {
super(f.getAbsolutePath());
}
/**
* Build a Tree from the entries.
*
*/
private ITreeNode parseTree() {
ITreeNode root = new TreeNodeUniqueChildren();
ITreeNode newnode, oldnode;
Enumeration entries = this.jar.entries();
String entry;
while (entries.hasMoreElements()) {
newnode = root;
oldnode = root;
entry = ((JarEntry)entries.nextElement()).getName();
System.out.println("Entry: " + entry);
StringTokenizer tokenizer = new StringTokenizer(entry, "/");
while (tokenizer.hasMoreElements()) {
String path = tokenizer.nextToken();
newnode = new TreeNodeUniqueChildren(path);
oldnode.addChildNode(newnode);
oldnode = newnode;
}
}
return root;
}
protected void buildTree(ITreeNode node, JarArchive element) throws IOException {
List childNodes = node.getAllChildren();
Iterator childNodesIt = childNodes.iterator();
ITreeNode childNode;
JarElement child;
JarEntry entry;
String search;
while (childNodesIt.hasNext()) {
childNode = (ITreeNode)childNodesIt.next();
search = getSearchPath(childNode);
System.out.println("Searching for: " + search);
entry = this.jar.getJarEntry(search);
if (entry == null) {
System.err.println("Entry for " + search + " (" + this.jar.getName() + ")is null!!!");
} else {
System.out.println("Entry: " + entry.toString());
child = new JarElement(entry, this);
child.buildTree(childNode, this);
this.childs.add(child);
}
}
System.out.println(this + " has finished building...");
}
/**
* Little helper that transforms (back) the nodes of the tree that was parsed from the entries during initialization
* to canonical strings for entries.
*/
private String getSearchPath(ITreeNode node) {
List l = new LinkedList();
node.getUserObjectPathFromRoot(l);
Iterator it = l.iterator();
StringBuffer ret = new StringBuffer();
int i = 0;
String token;
while (it.hasNext()) {
// avoid the "root" token.
token = it.next().toString();
if (i != 0) {
ret.append(token);
if (it.hasNext()) {
ret.append('/');
}
}
i++;
}
return ret.toString();
}
/*
* (non-Javadoc)
*
* @see java.io.File#canRead()
*/
public boolean canRead() {
return true;
}
/*
* (non-Javadoc)
*
* @see java.io.File#canWrite()
*/
public boolean canWrite() {
return false;
}
/*
* (non-Javadoc)
*
* @see java.io.File#compareTo(java.io.File)
*/
public int compareTo(File pathname) {
return super.compareTo(pathname);
}
/*
* (non-Javadoc)
*
* @see java.io.File#createNewFile()
*/
public boolean createNewFile() throws IOException {
return false;
}
/*
* (non-Javadoc)
*
* @see java.io.File#delete()
*/
public boolean delete() {
return false;
}
/*
* (non-Javadoc)
*
* @see java.io.File#deleteOnExit()
*/
public void deleteOnExit() {
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(Object obj) {
return super.equals(obj);
}
/*
* (non-Javadoc)
*
* @see java.io.File#exists()
*/
public boolean exists() {
return true;
}
/*
* (non-Javadoc)
*
* @see java.io.File#getAbsoluteFile()
*/
public File getAbsoluteFile() {
return super.getAbsoluteFile();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getAbsolutePath()
*/
public String getAbsolutePath() {
String ret = super.getAbsolutePath();
return ret;
}
/*
* (non-Javadoc)
*
* @see java.io.File#getCanonicalFile()
*/
public File getCanonicalFile() throws IOException {
return super.getCanonicalFile();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getCanonicalPath()
*/
public String getCanonicalPath() throws IOException {
return super.getCanonicalPath();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getName()
*/
public String getName() {
return super.getName();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getParent()
*/
public String getParent() {
return super.getParent();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getParentFile()
*/
public File getParentFile() {
return super.getParentFile();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getPath()
*/
public String getPath() {
return super.getPath();
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return super.hashCode();
}
/*
* (non-Javadoc)
*
* @see java.io.File#isAbsolute()
*/
public boolean isAbsolute() {
return super.isAbsolute();
}
/*
* (non-Javadoc)
*
* @see java.io.File#isDirectory()
*/
public boolean isDirectory() {
return true;
}
/*
* (non-Javadoc)
*
* @see java.io.File#isFile()
*/
public boolean isFile() {
return false;
}
/*
* (non-Javadoc)
*
* @see java.io.File#isHidden()
*/
public boolean isHidden() {
return false;
}
/*
* (non-Javadoc)
*
* @see java.io.File#lastModified()
*/
public long lastModified() {
return super.lastModified();
}
/*
* (non-Javadoc)
*
* @see java.io.File#length()
*/
public long length() {
return super.length();
}
/*
* (non-Javadoc)
*
* @see java.io.File#list()
*/
public String[] list() {
String[] ret = new String[this.childs.size()];
Iterator it = this.childs.iterator();
for (int i = 0; it.hasNext(); i++) {
ret[i] = it.next().toString();
}
return ret;
}
/*
* (non-Javadoc)
*
* @see java.io.File#list(java.io.FilenameFilter)
*/
public String[] list(FilenameFilter filter) {
List ret = new LinkedList();
Iterator it = this.childs.iterator();
File next;
while (it.hasNext()) {
next = (File)it.next();
if (filter.accept(next.getParentFile(), next.getName())) {
ret.add(next.toString());
}
}
return (String[])ret.toArray(new String[ret.size()]);
}
/*
* (non-Javadoc)
*
* @see java.io.File#listFiles()
*/
public File[] listFiles() {
File[] ret = new File[this.childs.size()];
Iterator it = this.childs.iterator();
for (int i = 0; it.hasNext(); i++) {
ret[i] = (File)it.next();
}
return ret;
}
/*
* (non-Javadoc)
*
* @see java.io.File#listFiles(java.io.FileFilter)
*/
public File[] listFiles(FileFilter filter) {
List ret = new LinkedList();
Iterator it = this.childs.iterator();
File next;
while (it.hasNext()) {
next = (File)it.next();
if (filter.accept(next)) {
ret.add(next);
}
}
return (File[])ret.toArray(new File[ret.size()]);
}
/*
* (non-Javadoc)
*
* @see java.io.File#listFiles(java.io.FilenameFilter)
*/
public File[] listFiles(FilenameFilter filter) {
List ret = new LinkedList();
Iterator it = this.childs.iterator();
File next;
while (it.hasNext()) {
next = (File)it.next();
if (filter.accept(next.getParentFile(), next.getName())) {
ret.add(next);
}
}
return (File[])ret.toArray(new File[ret.size()]);
}
/*
* (non-Javadoc)
*
* @see java.io.File#mkdir()
*/
public boolean mkdir() {
return false;
}
/*
* (non-Javadoc)
*
* @see java.io.File#mkdirs()
*/
public boolean mkdirs() {
return false;
}
/*
* (non-Javadoc)
*
* @see java.io.File#renameTo(java.io.File)
*/
public boolean renameTo(File dest) {
return false;
}
/*
* (non-Javadoc)
*
* @see java.io.File#setLastModified(long)
*/
public boolean setLastModified(long time) {
return super.setLastModified(time);
}
/*
* (non-Javadoc)
*
* @see java.io.File#setReadOnly()
*/
public boolean setReadOnly() {
return super.setReadOnly();
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
public String toString() {
return super.toString();
}
/*
* (non-Javadoc)
*
* @see java.io.File#toURI()
*/
public URI toURI() {
return super.toURI();
}
/*
* (non-Javadoc)
*
* @see java.io.File#toURL()
*/
public URL toURL() throws MalformedURLException {
return super.toURL();
}
class JarElement extends JarArchive {
private File m_parent;
private JarEntry m_entry;
/**
* Creates an element with the given entry and parent file.
*
* @param entry the contained entry.
*
* @param parent the parent file.
*
* @throws java.io.IOException if sth goes wrong.
*/
JarElement(JarEntry entry, File parent)
throws IOException {
super(new File(JarArchive.this.jar.getName()));
this.m_parent = parent;
if (entry == null) {
System.err.println("Entry is null.");
}
this.m_entry = entry;
this.jar = JarArchive.this.jar;
}
/*
* protected void buildTree(ITreeNode node,JarArchive element) throws IOException{ List childNodes =
* node.getAllChildren(); Iterator childNodesIt = childNodes.iterator(); ITreeNode childNode; JarElement child;
* JarEntry entry; String search; while(childNodesIt.hasNext()){ childNode = (ITreeNode)childNodesIt.next();
* search = this.entry.getName()+"/"+childNode.getUserObject().toString(); entry = this.jar.getJarEntry(search);
* child = new JarElement( entry, this ); this.childs.add(child); child.buildTree(childNode,this); } }
*
*/
/*
* (non-Javadoc)
*
* @see java.io.File#getAbsoluteFile()
*/
public File getAbsoluteFile() {
return this;
}
/*
* (non-Javadoc)
*
* @see java.io.File#getAbsolutePath()
*/
public String getAbsolutePath() {
String prefix = JarArchive.this.jar.getName();
String postfix = this.m_entry.getName();
return prefix + "/" + postfix;
}
/*
* (non-Javadoc)
*
* @see java.io.File#getName()
*/
public String getName() {
return this.m_entry.getName();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getParent()
*/
public String getParent() {
return this.m_parent.getAbsolutePath();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getParentFile()
*/
public File getParentFile() {
return this.m_parent;
}
/*
* (non-Javadoc)
*
* @see java.io.File#isDirectory()
*/
public boolean isDirectory() {
// would not work, don't know why (false, even if is a dir):
// this.entry.isDirectory();
return this.childs.size() != 0;
}
/*
* (non-Javadoc)
*
* @see java.io.File#isFile()
*/
public boolean isFile() {
return !this.isDirectory();
}
/*
* (non-Javadoc)
*
* @see java.io.File#lastModified()
*/
public long lastModified() {
return this.m_entry.getTime();
}
/*
* (non-Javadoc)
*
* @see java.io.File#length()
*/
public long length() {
return this.m_entry.getSize();
}
public String toString() {
return this.m_entry.toString();
}
/*
* (non-Javadoc)
*
* @see java.io.File#getPath()
*/
public String getPath() {
return this.m_entry.getName();
}
}
}