nes-proj/tools/coffee-manager/org/contikios/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.
*
* @author Nicolas Tsiftes
*
*/
package org.contikios.coffee;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import java.util.regex.Pattern;
import org.contikios.coffee.CoffeeFS.CoffeeException;
import org.contikios.coffee.CoffeeFS.CoffeeFileException;
public class CoffeeManager {
public enum Command { INSERT, EXTRACT, REMOVE, LIST, STATS };
public static void main(String args[]) {
String platform = "sky";
Command command = Command.STATS;
String filename = "";
String fsImage = "";
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String usage = "Usage: java -jar coffee.jar " +
"[-p <hardware platform>] " +
"[-i|e|r <file>] " +
"[-l|s] " +
"<file system image>";
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if (args.length < 2) {
System.err.println(usage);
System.exit(1);
}
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Pattern optionArg = Pattern.compile("-(p|i|e|r)");
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for(int i = 0; i < args.length - 1; i++) {
if (optionArg.matcher(args[i]).matches()) {
if(i >= args.length - 2) {
System.err.println(usage);
System.exit(1);
}
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}
if(args[i].equals("-p")) {
platform = args[i + 1];
i++;
} else if (args[i].equals("-i")) {
command = Command.INSERT;
filename = args[i + 1];
i++;
} else if (args[i].equals("-r")) {
command = Command.REMOVE;
filename = args[i + 1];
i++;
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} else if (args[i].equals("-e")) {
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command = Command.EXTRACT;
filename = args[i + 1];
i++;
} else if (args[i].equals("-l")) {
command = Command.LIST;
} else if (args[i].equals("-s")) {
command = Command.STATS;
} else {
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System.err.println(usage);
System.exit(1);
}
}
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fsImage = args[args.length - 1];
try {
CoffeeConfiguration conf = new CoffeeConfiguration(platform + ".properties");
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CoffeeFS 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());
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} catch (CoffeeException e) {
System.err.println(e.getMessage());
} catch (CoffeeFileException 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()) {
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Map.Entry<String, CoffeeFile> pair = iterator.next();
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()) {
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Map.Entry<String, CoffeeFile> pair = iterator.next();
CoffeeFile file = pair.getValue();
System.out.println(file.getName() + " " + file.getLength());
}
} catch (IOException e) {
System.err.println("failed to determine the file length");
}
}
}