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/*
* MemoryMappedArchive.java
*
* Created on September 6, 2002, 2:58 PM
*/
package com.sun.enterprise.deployment.deploy.shared;
import com.sun.enterprise.util.shared.ArchivistUtils;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.PerLookup;
import org.jvnet.hk2.annotations.Scoped;
import java.io.*;
import java.net.URI;
import java.util.Enumeration;
import java.util.Vector;
import java.util.Collection;
import java.util.jar.JarInputStream;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
import java.util.jar.JarEntry;
import java.util.zip.ZipEntry;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author Jerome Dochez
*/
@Service
@Scoped(PerLookup.class)
public class MemoryMappedArchive extends JarArchive implements ReadableArchive {
private URI uri;
byte[] file;
/** Creates a new instance of MemoryMappedArchive */
protected MemoryMappedArchive() {
// for use by subclasses
}
/** Creates a new instance of MemoryMappedArchive */
public MemoryMappedArchive(InputStream is) throws IOException {
read(is);
}
public MemoryMappedArchive(byte[] bits) {
file = bits;
}
public byte[] getByteArray() {
return file;
}
private void read(InputStream is) throws IOException{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ArchivistUtils.copy(is,baos);
file = baos.toByteArray();
}
public void open(URI uri) throws IOException {
File in = new File(uri);
if (!in.exists()) {
throw new FileNotFoundException(uri.getSchemeSpecificPart());
}
FileInputStream is = null;
try {
is = new FileInputStream(in);
read(is);
} finally {
if (is != null) {
is.close();
}
}
}
// copy constructor
public MemoryMappedArchive(ReadableArchive source) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
JarOutputStream jos = new JarOutputStream(baos);
for (Enumeration elements = source.entries();elements.hasMoreElements();) {
String elementName = (String) elements.nextElement();
InputStream is = source.getEntry(elementName);
jos.putNextEntry(new ZipEntry(elementName));
ArchivistUtils.copyWithoutClose(is, jos);
is.close();
jos.flush();
jos.closeEntry();
}
jos.close();
file = baos.toByteArray();
}
/**
* close the abstract archive
*/
public void close() throws IOException {
}
/**
* delete the archive
*/
public boolean delete() {
return false;
}
/**
* @return an @see java.util.Enumeration of entries in this abstract
* archive
*/
public Enumeration entries() {
return entries(false).elements();
}
public Collection<String> getDirectories() throws IOException {
return entries(true);
}
private Vector<String> entries(boolean directory) {
Vector entries = new Vector();
try {
JarInputStream jis = new JarInputStream(new ByteArrayInputStream(file));
ZipEntry ze;
while ((ze=jis.getNextEntry())!=null) {
if (ze.isDirectory()==directory) {
entries.add(ze.getName());
}
}
jis.close();
} catch(IOException ioe) {
Logger.getAnonymousLogger().log(Level.WARNING,
ioe.getMessage(), ioe);
}
return entries;
}
/**
* @return an @see java.util.Enumeration of entries in this abstract
* archive, providing the list of embedded archive to not count their
* entries as part of this archive
*/
public Enumeration entries(Enumeration embeddedArchives) {
// jar file are not recursive
return entries();
}
/**
* @return true if this archive exists
*/
public boolean exists() {
return false;
}
/**
* @return the archive uri
*/
public String getPath() {
return null;
}
/**
* Get the size of the archive
* @return tje the size of this archive or -1 on error
*/
public long getArchiveSize() throws NullPointerException, SecurityException {
return(file.length);
}
public URI getURI() {
return uri;
}
public void setURI(final URI uri) {
this.uri = uri;
}
/**
* create or obtain an embedded archive within this abstraction.
*
* @param name the name of the embedded archive.
*/
public ReadableArchive getSubArchive(String name) throws IOException {
InputStream is = getEntry(name);
if (is!=null) {
ReadableArchive archive = new MemoryMappedArchive(is);
is.close();
return archive;
}
return null;
}
/**
* Returns the existence of the given entry name
* The file name must be relative to the root of the module.
*
* @param name the file name relative to the root of the module.
* @return the existence the given entry name.
*/
public boolean exists(String name) throws IOException {
return (getEntry(name) != null);
}
/**
* @return a @see java.io.InputStream for an existing entry in
* the current abstract archive
* @param name the entry name
*/
public InputStream getEntry(String name) throws IOException {
JarInputStream jis = new JarInputStream(new ByteArrayInputStream(file));
ZipEntry ze;
while ((ze=jis.getNextEntry())!=null) {
if (ze.getName().equals(name))
return new BufferedInputStream(jis);
}
return null;
}
public JarEntry getJarEntry(String name) {
try {
JarInputStream jis = new JarInputStream(new ByteArrayInputStream(file));
JarEntry ze;
while ((ze=jis.getNextJarEntry())!=null) {
if (ze.getName().equals(name)) {
return ze;
}
}
} catch(IOException e) {
return null;
}
return null;
}
/**
* Returns the entry size for a given entry name or 0 if not known
*
* @param name the entry name
* @return the entry size
*/
public long getEntrySize(String name) {
try {
JarInputStream jis = new JarInputStream(new ByteArrayInputStream(file));
ZipEntry ze;
while ((ze=jis.getNextEntry())!=null) {
if (ze.getName().equals(name)) {
return ze.getSize();
}
}
} catch(IOException e) {
return 0;
}
return 0;
}
/**
* @return the manifest information for this abstract archive
*/
public Manifest getManifest() throws IOException {
JarInputStream jis = new JarInputStream(new ByteArrayInputStream(file));
Manifest m = jis.getManifest();
jis.close();
return m;
}
/**
* rename the archive
*
* @param name the archive name
*/
public boolean renameTo(String name) {
return false;
}
/**
* Returns the name for the archive.
* <p>
* For a MemoryMappedArhive there is no name, so an empty string is returned.
* @return the name of the archive
*
*/
@Override
public String getName() {
return "";
}
}