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org.jgroups.tests.GridFilesystemTest Maven / Gradle / Ivy
package org.jgroups.tests;
import org.jgroups.blocks.GridFile;
import org.jgroups.blocks.GridFilesystem;
import org.jgroups.blocks.ReplCache;
import org.jgroups.util.Util;
import java.io.*;
import java.util.HashMap;
import java.util.Map;
/**
* @author Bela Ban
* todo: regexp for file ls, rm, down and up
* todo: recursive up and down
*/
public class GridFilesystemTest {
static final Map commands=new HashMap<>();
static String current_dir="/";
static final String HOME=System.getProperty("user.home");
static {
commands.put("mkdir", new mkdir());
commands.put("ls", new ls());
commands.put("cd", new cd());
commands.put("pwd", new pwd());
commands.put("rm", new rm());
commands.put("up", new up());
commands.put("down", new down());
}
public static void main(String[] args) throws Exception {
String props="udp.xml";
String cluster_name="imfs-cluster";
String metadata_cluster_name="metadata-cluster";
short default_repl_count=1;
int default_chunk_size=4000;
GridFilesystem fs;
for(int i=0; i < args.length; i++) {
if(args[i].equals("-props")) {
props=args[++i];
continue;
}
if(args[i].equals("-cluster_name")) {
cluster_name=args[++i];
continue;
}
if(args[i].equals("-metadata_cluster_name")) {
metadata_cluster_name=args[++i];
continue;
}
if(args[i].equals("-repl_count")) {
default_repl_count=Short.parseShort(args[++i]);
continue;
}
if(args[i].equals("-chunk_size")) {
default_chunk_size=Integer.parseInt(args[++i]);
continue;
}
System.out.println("GridFilesystemTest [-props ] [-cluster_name ] " +
"[-metadata_cluster_name ] [-repl_count ] [-chunk_size ]");
return;
}
ReplCache data=new ReplCache<>(props, cluster_name);
ReplCache metadata=new ReplCache<>(props, metadata_cluster_name);
data.start();
metadata.start();
fs=new GridFilesystem(data, metadata, default_repl_count, default_chunk_size);
loop(fs);
data.stop();
metadata.stop();
}
private static void loop(GridFilesystem fs) {
while(true) {
try {
System.out.print("> ");
String line=Util.readLine(System.in);
if(!execute(fs, line))
break;
}
catch(Throwable t) {
t.printStackTrace();
}
}
}
private static boolean execute(GridFilesystem fs, String line) {
String[] comps=parseCommandLine(line);
if(comps == null || comps.length == 0) {
help();
return true;
}
if(comps[0].equalsIgnoreCase("quit") || comps[0].equalsIgnoreCase("exit"))
return false;
if(comps[0].equalsIgnoreCase("help")) {
help();
return true;
}
Command cmd=commands.get(comps[0]);
if(cmd == null) {
System.err.println(comps[0] + " not known");
help();
return true;
}
String[] args=null;
if(comps.length > 1) {
args=new String[comps.length -1];
System.arraycopy(comps, 1, args, 0, args.length);
}
cmd.execute(fs, args);
return true;
}
private static void help() {
StringBuilder sb=new StringBuilder("Valid commands:\nhelp\nquit\nexit\n");
for(Command cmd: commands.values()) {
String help=cmd.help();
if(help != null)
sb.append(help).append("\n");
}
System.out.println(sb.toString());
}
private static String[] parseCommandLine(String line) {
if(line == null)
return null;
return line.trim().split(" ");
}
private static interface Command {
void execute(GridFilesystem fs, String[] args);
String help();
}
private static class ls implements Command {
public void execute(GridFilesystem fs, String[] args) {
String options=parseOptions(args);
boolean recursive=options.contains("R");
boolean detailed=options.contains("l");
String[] files=getNonOptions(args);
if(files == null || files.length == 0)
files=new String[]{current_dir};
for(String str: files) {
if(!str.startsWith(File.separator))
str=current_dir + File.separator + str;
File file=fs.getFile(str);
if(!file.exists()) {
System.err.println("File " + file + " doesn't exist");
continue;
}
print(file, detailed, recursive, 0, file.isDirectory());
}
}
public String help() {
return "ls [-lR] [dirs | files]";
}
}
private static class mkdir implements Command {
public void execute(GridFilesystem fs, String[] args) {
String options=parseOptions(args);
boolean recursive=options.contains("p");
String[] dir_names=getNonOptions(args);
if(dir_names == null || dir_names.length < 1) {
System.err.println(help());
return;
}
for(String dir: dir_names) {
if(!dir.startsWith(File.separator))
dir=current_dir + File.separator + dir;
File file=fs.getFile(dir);
boolean result;
if(recursive)
result=file.mkdirs();
else
result=file.mkdir();
if(!result)
System.err.println("failed creating " + dir);
}
}
public String help() {
return "mkdir [-p] dirs";
}
}
private static class rm implements Command {
public void execute(GridFilesystem fs, String[] args) {
String options=parseOptions(args);
boolean recursive=options.contains("r");
String[] dir_names=getNonOptions(args);
if(dir_names == null || dir_names.length < 1) {
System.err.println(help());
return;
}
for(String dir: dir_names) {
if(!dir.startsWith(File.separator))
dir=current_dir.equals(File.separator)? current_dir + dir : current_dir + File.separator + dir;
File file=fs.getFile(dir);
if(!file.exists()) {
System.err.println(file.getName() + " doesn't exist");
return;
}
if(file.isFile()) {
if(!file.delete())
System.err.println("cannot remove " + file.getName());
return;
}
if(!recursive) {
if(!file.delete())
System.err.println("cannot remove " + file.getName() + ": is a directory");
}
else {
if(!delete(file)) { // recursive delete
System.err.println("recursive removal of " + file.getName() + " failed");
}
}
}
}
public String help() {
return "rm [-fr] ";
}
}
private static class cd implements Command {
public void execute(GridFilesystem fs, String[] args) {
String[] tmp=getNonOptions(args);
String target_dir="~";
if(tmp != null && tmp.length == 1)
target_dir=tmp[0];
if(target_dir.equals(".."))
target_dir=new File(current_dir).getParent();
if(target_dir.contains("~") && HOME != null)
target_dir=target_dir.replace("~", HOME);
if(!target_dir.trim().startsWith(File.separator)) {
target_dir=current_dir.equals(File.separator)?
current_dir + target_dir :
current_dir + File.separator + target_dir;
}
File dir=fs.getFile(target_dir);
if(!dir.exists()) {
System.err.println("Directory " + target_dir + " doesn't exist");
}
else
current_dir=target_dir;
}
public String help() {
return "cd [dir]";
}
}
private static class pwd implements Command {
public void execute(GridFilesystem fs, String[] args) {
System.out.println(current_dir);
}
public String help() {
return "pwd";
}
}
private static class up implements Command {
public void execute(GridFilesystem fs, String[] args) {
String options=parseOptions(args);
String[] real_args=getNonOptions(args);
boolean overwrite=options.contains("f");
if(real_args.length == 0) {
System.err.println(help());
return;
}
String local_path=real_args[0], grid_path=real_args.length > 1? real_args[1] : null;
if(HOME != null && local_path.contains("~"))
local_path=local_path.replace("~", HOME);
String target_path=grid_path != null? grid_path : local_path;
if(target_path.contains("~"))
target_path=target_path.replace("~", HOME);
if(target_path.equals("."))
target_path=current_dir;
File target=fs.getFile(target_path);
if(!overwrite && target.exists() && target.isFile()) {
System.err.println("grid file " + target_path + " already exists; use -f to force overwrite");
return;
}
if(target.exists() && target.isDirectory()) {
String[] comps=Util.components(local_path, File.separator);
String filename=comps[comps.length - 1];
target_path=target_path + (target_path.equals(File.separator)? filename : File.separator + filename);
}
FileInputStream in=null;
OutputStream out=null;
try {
in=new FileInputStream(local_path);
File out_file=fs.getFile(target_path);
if(out_file.exists() && out_file.isDirectory()) {
System.err.println("target " + target_path + " is a directory");
return;
}
if(out_file.exists() && out_file.isFile() && overwrite) {
if(out_file instanceof GridFile)
((GridFile)out_file).delete(true);
else
out_file.delete();
}
out=fs.getOutput((GridFile)out_file);
byte[] buf=new byte[50000];
int len, total=0;
while((len=in.read(buf, 0, buf.length)) != -1) {
out.write(buf, 0, len);
total+=len;
}
System.out.println("uploaded " + local_path + " to " + target_path + " (" + total + " bytes)");
}
catch(FileNotFoundException e) {
System.err.println("local file " + local_path + " not found");
}
catch(IOException e) {
System.err.println("cannot create " + target_path);
}
finally {
Util.close(in);
Util.close(out);
}
}
public String help() {
return "up [-f] []";
}
}
private static class down implements Command {
public void execute(GridFilesystem fs, String[] args) {
String options=parseOptions(args);
String[] real_args=getNonOptions(args);
boolean overwrite=options.contains("f");
if(real_args.length == 0) {
System.err.println(help());
return;
}
String grid_path=real_args[0], local_path=real_args.length > 1? real_args[1] : null;
if(HOME != null && grid_path.contains("~"))
grid_path=grid_path.replace("~", HOME);
String target_path=local_path != null? local_path : grid_path;
if(target_path.contains("~"))
target_path=target_path.replace("~", HOME);
if(target_path.equals("."))
target_path=System.getProperty("user.dir");
File target=new File(target_path);
if(!overwrite && target.exists() && target.isFile()) {
System.err.println("grid file " + target_path + " already exists; use -f to force overwrite");
return;
}
if(target.exists() && target.isDirectory()) {
String[] comps=Util.components(grid_path, File.separator);
String filename=comps[comps.length - 1];
target_path=target_path + (target_path.endsWith(File.separator)? filename : File.separator + filename);
}
InputStream in=null;
FileOutputStream out=null;
try {
in=fs.getInput(grid_path);
File out_file=new File(target_path);
if(out_file.exists() && out_file.isDirectory()) {
System.err.println("target " + target_path + " is a directory");
return;
}
out=new FileOutputStream(out_file);
byte[] buf=new byte[50000];
int len, total=0;
while((len=in.read(buf, 0, buf.length)) != -1) {
out.write(buf, 0, len);
total+=len;
}
System.out.println("downloaded " + local_path + " to " + target_path + " (" + total + " bytes)");
}
catch(FileNotFoundException e) {
System.err.println("local file " + local_path + " not found");
}
catch(IOException e) {
System.err.println("cannot create " + target_path);
}
finally {
Util.close(in);
Util.close(out);
}
}
public String help() {
return "down [-f] []";
}
}
private static String parseOptions(String[] args) {
StringBuilder sb=new StringBuilder();
if(args == null)
return "";
for(String str: args) {
if(str.startsWith("-"))
sb.append(str.substring(1));
}
return sb.toString();
}
private static String[] getNonOptions(String[] args) {
if(args == null)
return null;
int cnt=0;
for(String str: args)
if(!str.startsWith("-"))
cnt++;
String[] retval=new String[cnt];
cnt=0;
for(String str: args)
if(!str.startsWith("-"))
retval[cnt++]=str;
return retval;
}
private static boolean delete(File dir) {
boolean retval=true;
if(dir == null)
return false;
File[] files=dir.listFiles();
if(files != null) {
for(File file: files) {
if(!delete(file))
retval=false;
}
}
boolean rc=dir instanceof GridFile? ((GridFile)dir).delete(true) : dir.delete();
if(!rc)
retval=false;
return retval;
}
private static void print(File file, boolean details, boolean recursive, int indent, boolean exclude_self) {
if(file.isDirectory()) {
if(!exclude_self)
System.out.print(print(file, details, indent));
File[] children=file.listFiles();
for(File child: children) {
if(!recursive)
System.out.print(print(child, details, indent));
else {
print(child, details, recursive, indent +4, false);
}
}
if(children.length > 0)
System.out.println("");
}
else {
String tmp=print(file, details, indent);
System.out.print(tmp);
}
}
private static String print(File file, boolean details, int indent) {
StringBuilder sb=new StringBuilder();
if(file.isDirectory()) {
if(details)
sb.append(indent(indent));
sb.append(file.getName()).append("/");
}
else {
if(details)
sb.append(indent(indent));
sb.append(file.getName());
if(details) {
sb.append(" " + Util.printBytes(file.length()));
if(file instanceof GridFile)
sb.append(", chunk_sise=" + ((GridFile)file).getChunkSize());
}
}
sb.append(details? '\n' : ' ');
return sb.toString();
}
private static String indent(int num) {
StringBuilder sb=new StringBuilder();
for(int i=0; i < num; i++)
sb.append(' ');
return sb.toString();
}
}
