osd-contiki/tools/coffee-manager/se/sics/coffee/CoffeeManager.java

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/*
* Copyright (c) 2009, Swedish Institute of Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* $Id: CoffeeManager.java,v 1.4 2009/08/11 17:03:59 fros4943 Exp $
*
* @author Nicolas Tsiftes
*
*/
package se.sics.coffee;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class CoffeeManager {
private static CoffeeFS coffeeFS;
public enum Command { INSERT, EXTRACT, REMOVE, LIST, STATS };
public static void main(String args[]) {
String platform = "sky";
String usage = "Usage: java -jar coffee.jar ";
Command command = Command.STATS;
String filename = "";
String fsImage = "";
usage += "[-i|e|r <file>] ";
usage += "[-l|s] ";
usage += "<file system image>";
if (args.length < 1) {
System.err.println(usage);
System.exit(1);
}
if (args.length > 1) {
Pattern validArg = Pattern.compile("-(i|e|r|l|s)");
Matcher m = validArg.matcher(args[0]);
if (!m.matches()) {
System.err.println(usage);
System.exit(1);
}
if (args[0].equals("-i") || args[0].equals("-e") || args[0].equals("-r")) {
if (args.length != 3) {
System.err.println(usage);
System.exit(1);
}
if (args[0].equals("-i")) {
command = Command.INSERT;
} else if (args[0].equals("-r")) {
command = Command.REMOVE;
} else {
command = Command.EXTRACT;
}
filename = args[1];
fsImage = args[2];
} else {
if (args.length != 2) {
System.err.println(usage);
System.exit(1);
}
if (args[0].equals("-l")) {
command = Command.LIST;
} else {
command = Command.STATS;
}
fsImage = args[1];
}
}
try {
CoffeeConfiguration conf = new CoffeeConfiguration(platform + ".properties");
coffeeFS = new CoffeeFS(new CoffeeImageFile(fsImage, conf));
switch (command) {
case INSERT:
if (coffeeFS.getFiles().get(filename) != null) {
System.err.println("error: file \"" +
filename + "\" already exists");
break;
}
if (coffeeFS.insertFile(filename) != null) {
System.out.println("Inserted the local file \"" +
filename +
"\" into the file system image");
}
break;
case EXTRACT:
if (coffeeFS.extractFile(filename) == false) {
System.err.println("Inexistent file: " +
filename);
System.exit(1);
}
System.out.println("Saved the file \"" +
filename + "\"");
break;
case REMOVE:
coffeeFS.removeFile(filename);
System.out.println("Removed the file \"" +
filename +
"\" from the Coffee file system image");
break;
case LIST:
printFiles(coffeeFS.getFiles());
break;
case STATS:
printStatistics(coffeeFS);
break;
default:
System.err.println("Unknown command!");
System.exit(1);
}
} catch (IOException e) {
System.err.println(e.getMessage());
}
}
public static void printStatistics(CoffeeFS coffeeFS) {
int bytesWritten = 0;
int bytesReserved = 0;
int fileCount = 0;
CoffeeConfiguration conf = coffeeFS.getConfiguration();
try {
Iterator<Map.Entry<String, CoffeeFile>> iterator =
coffeeFS.getFiles().entrySet().iterator();
while (iterator.hasNext()) {
Map.Entry<String, CoffeeFile> pair = (Map.Entry<String, CoffeeFile>) iterator.next();
String key = pair.getKey();
CoffeeFile file = pair.getValue();
bytesWritten += file.getLength();
bytesReserved += file.getHeader().getReservedSize();
fileCount++;
}
bytesReserved *= conf.pageSize;
System.out.println("File system size: " +
conf.fsSize / 1024 + "kb");
System.out.println("Allocated files: " + fileCount);
System.out.println("Reserved bytes: " + bytesReserved + " (" +
(100 * ((float) bytesReserved / conf.fsSize)) +
"%)");
System.out.println("Written bytes: " + bytesWritten +
" (" +
(100 * ((float) bytesWritten / conf.fsSize)) +
"%)");
} catch (IOException e) {
System.err.println("failed to determine the file length");
}
}
public static void printFiles(Map<String, CoffeeFile> files) {
try {
Iterator<Map.Entry<String, CoffeeFile>> iterator = files.entrySet().iterator();
while (iterator.hasNext()) {
Map.Entry<String, CoffeeFile> pair = (Map.Entry<String, CoffeeFile>) iterator.next();
String key = pair.getKey();
CoffeeFile file = pair.getValue();
System.out.println(file.getName() + " " + file.getLength());
}
} catch (IOException e) {
System.err.println("failed to determine the file length");
}
}
}