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