// serverFileUtils.java
// -------------------------------------------
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
// last major change: 05.08.2004
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
package de.anomic.server;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import java.util.zip.GZIPOutputStream;
import java.util.Set;
import java.util.Map;
import java.util.HashSet;
import java.util.TreeSet;
import java.util.Properties;
import java.util.Hashtable;
import java.util.Iterator;
public final class serverFileUtils {
/**
* Copies an InputStream to an OutputStream.
* @param source InputStream
* @param dest OutputStream
* @return Total number of bytes copied.
* @see copy(InputStream source, File dest)
* @see copyRange(File source, OutputStream dest, int start)
* @see copy(File source, OutputStream dest)
* @see copy(File source, File dest)
*/
public static int copy(InputStream source, OutputStream dest) throws IOException {
byte[] buffer = new byte[4096];
int c, total = 0;
while ((c = source.read(buffer)) > 0) {
dest.write(buffer, 0, c);
dest.flush();
total += c;
}
dest.flush();
return total;
}
/**
* Copies an InputStream to a File.
* @param source InputStream
* @param dest File
* @see copy(InputStream source, OutputStream dest)
* @see copyRange(File source, OutputStream dest, int start)
* @see copy(File source, OutputStream dest)
* @see copy(File source, File dest)
*/
public static void copy(InputStream source, File dest) throws IOException {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(dest);
copy(source, fos);
} finally {
if (fos != null) try {fos.close();} catch (Exception e) {}
}
}
/**
* Copies a part of a File to an OutputStream.
* @param source File
* @param dest OutputStream
* @param start Number of bytes to skip from the beginning of the File
* @see copy(InputStream source, OutputStream dest)
* @see copy(InputStream source, File dest)
* @see copy(File source, OutputStream dest)
* @see copy(File source, File dest)
*/
public static void copyRange(File source, OutputStream dest, int start) throws IOException {
InputStream fis = null;
try {
fis = new FileInputStream(source);
long skipped = fis.skip(start);
if (skipped != start) throw new IllegalStateException("Unable to skip '" + start + "' bytes. Only '" + skipped + "' bytes skipped.");
copy(fis, dest);
} finally {
if (fis != null) try { fis.close(); } catch (Exception e) {}
}
}
/**
* Copies a File to an OutputStream.
* @param source File
* @param dest OutputStream
* @see copy(InputStream source, OutputStream dest)
* @see copy(InputStream source, File dest)
* @see copyRange(File source, OutputStream dest, int start)
* @see copy(File source, File dest)
*/
public static void copy(File source, OutputStream dest) throws IOException {
InputStream fis = null;
try {
fis = new FileInputStream(source);
copy(fis, dest);
} finally {
if (fis != null) try { fis.close(); } catch (Exception e) {}
}
}
/**
* Copies a File to a File.
* @param source File
* @param dest File
* @see copy(InputStream source, OutputStream dest)
* @see copy(InputStream source, File dest)
* @see copyRange(File source, OutputStream dest, int start)
* @see copy(File source, OutputStream dest)
*/
public static void copy(File source, File dest) throws IOException {
FileInputStream fis = null;
FileOutputStream fos = null;
try {
fis = new FileInputStream(source);
fos = new FileOutputStream(dest);
copy(fis, fos);
} finally {
if (fis != null) try {fis.close();} catch (Exception e) {}
if (fos != null) try {fos.close();} catch (Exception e) {}
}
}
public static byte[] read(InputStream source) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
copy(source, baos);
baos.close();
return baos.toByteArray();
}
public static byte[] read(File source) throws IOException {
byte[] buffer = new byte[(int) source.length()];
InputStream fis = null;
try {
fis = new FileInputStream(source);
int p = 0, c;
while ((c = fis.read(buffer, p, buffer.length - p)) > 0) p += c;
} finally {
if (fis != null) try { fis.close(); } catch (Exception e) {}
}
return buffer;
}
public static byte[] readAndZip(File source) throws IOException {
ByteArrayOutputStream byteOut = null;
GZIPOutputStream zipOut = null;
try {
byteOut = new ByteArrayOutputStream((int)(source.length()/2));
zipOut = new GZIPOutputStream(byteOut);
copy(source, zipOut);
zipOut.close();
return byteOut.toByteArray();
} finally {
if (zipOut != null) try { zipOut.close(); } catch (Exception e) {}
if (byteOut != null) try { byteOut.close(); } catch (Exception e) {}
}
}
public static void writeAndGZip(byte[] source, File dest) throws IOException {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(dest);
writeAndGZip(source, fos);
} finally {
if (fos != null) try {fos.close();} catch (Exception e) {}
}
}
public static void writeAndGZip(byte[] source, OutputStream dest) throws IOException {
GZIPOutputStream zipOut = null;
try {
zipOut = new GZIPOutputStream(dest);
write(source, zipOut);
zipOut.close();
} finally {
if (zipOut != null) try { zipOut.close(); } catch (Exception e) {}
}
}
public static void write(byte[] source, OutputStream dest) throws IOException {
copy(new ByteArrayInputStream(source), dest);
}
public static void write(byte[] source, File dest) throws IOException {
copy(new ByteArrayInputStream(source), dest);
}
public static HashSet loadList(File file) {
HashSet set = new HashSet();
BufferedReader br = null;
try {
br = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
String line;
while ((line = br.readLine()) != null) {
line = line.trim();
if ((line.length() > 0) && (!(line.startsWith("#")))) set.add(line.trim().toLowerCase());
}
br.close();
} catch (IOException e) {
} finally {
if (br != null) try { br.close(); } catch (Exception e) {}
}
return set;
}
public static Map loadHashMap(File f) {
// load props
Properties prop = new Properties();
BufferedInputStream bufferedIn = null;
try {
prop.load(bufferedIn = new BufferedInputStream(new FileInputStream(f)));
} catch (IOException e1) {
System.err.println("ERROR: " + f.toString() + " not found in settings path");
prop = null;
} finally {
if (bufferedIn != null)try{bufferedIn.close();}catch(Exception e){}
}
return (Hashtable) prop;
}
public static void saveMap(File file, Map props, String comment) throws IOException {
PrintWriter pw = null;
File tf = new File(file.toString() + "." + (System.currentTimeMillis() % 1000));
pw = new PrintWriter(new BufferedOutputStream(new FileOutputStream(tf)));
pw.println("# " + comment);
Iterator i = props.entrySet().iterator();
String key, value;
Map.Entry entry;
while (i.hasNext()) {
entry = (Map.Entry) i.next();
key = (String) entry.getKey();
value = ((String) entry.getValue()).replaceAll("\n", "\\\\n");
pw.println(key + "=" + value);
}
pw.println("# EOF");
pw.close();
file.delete();
tf.renameTo(file);
}
public static Set loadSet(File file, int chunksize, boolean tree) throws IOException {
Set set = (tree) ? (Set) new TreeSet() : (Set) new HashSet();
byte[] b = read(file);
for (int i = 0; (i + chunksize) <= b.length; i++) {
set.add(new String(b, i, chunksize));
}
return set;
}
public static Set loadSet(File file, String sep, boolean tree) throws IOException {
Set set = (tree) ? (Set) new TreeSet() : (Set) new HashSet();
byte[] b = read(file);
StringTokenizer st = new StringTokenizer(new String(b, "UTF-8"), sep);
while (st.hasMoreTokens()) {
set.add(st.nextToken());
}
return set;
}
public static void saveSet(File file, Set set, String sep) throws IOException {
File tf = new File(file.toString() + "." + (System.currentTimeMillis() % 1000));
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(tf));
Iterator i = set.iterator();
String key;
if (i.hasNext()) {
key = i.next().toString();
bos.write(key.getBytes());
}
while (i.hasNext()) {
key = i.next().toString();
if (sep != null) bos.write(sep.getBytes());
bos.write(key.getBytes());
}
bos.close();
file.delete();
tf.renameTo(file);
}
/**
* Moves all files from a directory to another.
* @param from_dir Directory which contents will be moved.
* @param to_dir Directory to move into. It must exist already.
*/
public static void moveAll(File from_dir, File to_dir) {
if (!(from_dir.isDirectory())) return;
if (!(to_dir.isDirectory())) return;
String[] list = from_dir.list();
for (int i = 0; i < list.length; i++) (new File(from_dir, list[i])).renameTo(new File(to_dir, list[i]));
}
public static void main(String[] args) {
try {
writeAndGZip("ein zwei drei, Zauberei".getBytes(), new File("zauberei.txt.gz"));
} catch (IOException e) {
e.printStackTrace();
}
}
}