I am working on a application which first require to check the available free disk space before running any operation. We have set some Default required Space limit like 512MB, So if any working drive does not have more then 512mb space my program will prompt for less memory space available, please make sufficient space to run the program.
I am using following code for it.
long freeSpace = FileSystemUtils.freeSpaceKb() * 1024;
here I am coverting size into byte first to compare with our standard required size.
Due to the above statement i am gettign following exception:
Error-Command line returned OS error code '3' for command [cmd.exe, /C, dir /-c "F:\MyApp\"]Stacktrace java.io.IOException: Command line returned OS error code '3' for command [cmd.exe, /C, dir /-c "F:\MyApp"]
at org.apache.commons.io.FileSystemUtils.performCommand(FileSystemUtils.java:506)
at org.apache.commons.io.FileSystemUtils.freeSpaceWindows(FileSystemUtils.java:303)
at org.apache.commons.io.FileSystemUtils.freeSpaceOS(FileSystemUtils.java:270)
at org.apache.commons.io.FileSystemUtils.freeSpaceKb(FileSystemUtils.java:206)
at org.apache.commons.io.FileSystemUtils.freeSpaceKb(FileSystemUtils.java:240)
at org.apache.commons.io.FileSystemUtils.freeSpaceKb(FileSystemUtils.java:222)...
The OS returned Error Code is '3' thats mean it is not normal termination.
So now how can I resolve this issue ?
I also found alternative method available in java 1.6 - How to find how much disk space is left using Java?
new File("c:\\").getFreeSpace();
---------------------------------
**More Details :**
---------------------------------
OS Architecture : amd64
Temp Dir : c:\temp\
OS Name : Windows 7
OS Version : 6.1 amd64
Jre Version : 1.6.0_45-b06
User Home : C:\Users\Tej.Kiran
User Language : en
User Country: US
File Separator : \
Current Working Directory : F:\MyApp\
You can try executing that command from a prompt. Run cmd.exe and enter the following:
cmd.exe /C dir /-c "F:\MyApp\"
echo %errorlevel%
Error code 3 means the path doesn't exist, but in this case I wonder if it is related to permissions. Any non-zero errorlevel is a problem. If your Java app needs to know the free space on the drive it is installed on, you can do something like this:
// returns something like "file:/C:/MyApp/my/pkg/MyClass.class"
// -OR- "jar:file:/C:/MyApp/myjar.jar!/my/pkg/MyClass.class"
String myPath = my.pkg.MyClass.class.getResource(MyClass.class).toString();
int start = myPath.indexOf("file:/") + 6;
FileSystemUtils.freeSpaceKb(myPath.substring(start, myPath.indexOf("/", start));
Obviously this code wouldn't work in an applet, but that shouldn't be surprising. The substring logic should also be more robust, but this is just a simple example.
Related
I've a JavaFX application where I've a list of a bunch of script files. Once the application loads, it reads it and and checks which ones are running.
To do that I use a ProcessHandle, as mentioned in various examples here on StackOverflow and other guides/tutorials on the internet.
The problem is, it never finds any of them. There for I programmatically started one, which I know for a fact that it will be running, via Process process = new ProcessBuilder("/path/to/file/my_script.sh").start(); - and it won't find this one either.
Contents of my_script.sh:
#!/bin/bash
echo "Wait for 5 seconds"
sleep 5
echo "Completed"
Java code:
// List of PIDs which correspond to the processes shown after "INFO COMMAND:"
System.out.println("ALL PROCESSES: " + ProcessHandle.allProcesses().toList());
Optional<ProcessHandle> scriptProcessHandle = ProcessHandle.allProcesses().filter(processHandle -> {
System.out.println("INFO COMMAND: " + processHandle.info().command());
Optional<String> processOptional = processHandle.info().command();
return processOptional.isPresent() && processOptional.get().equals("my_script.sh");
}).findFirst();
System.out.println("Script process handle is present: " + scriptProcessHandle.isPresent());
if (scriptProcessHandle.isPresent()) { // Always false
// Do stuff
}
Thanks to the good old fashioned System.out.println(), I noticed that I get this in my output console every time:
ALL PROCESSES: [1, 2, 28, 85, 128, 6944, 21174, 29029, 29071]
INFO COMMAND: Optional[/usr/bin/bwrap]
INFO COMMAND: Optional[/usr/bin/bash]
INFO COMMAND: Optional[/app/idea-IC/jbr/bin/java]
INFO COMMAND: Optional[/app/idea-IC/bin/fsnotifier]
INFO COMMAND: Optional[/home/username/.jdks/openjdk-17.0.2/bin/java]
INFO COMMAND: Optional[/usr/bin/bash]
INFO COMMAND: Optional[/home/username/.jdks/openjdk-17.0.2/bin/java]
INFO COMMAND: Optional[/home/username/.jdks/openjdk-17.0.2/bin/java]
INFO COMMAND: Optional[/usr/bin/bash]
Script process handle is present: false
The first line in the Javadoc of ProcessHandle.allProcess() reads:
Returns a snapshot of all processes visible to the current process.
So how come I can't see the rest of the operating system's processes?
I'm looking for a non-os-dependent solution, if possible. Why? For better portability and hopefully less maintenance in the future.
Notes:
A popular solution for GNU/Linux seems to be to check the proc entries, but I don't know if that would work for at least the majority of the most popular distributions - if it doesn't, adding support for them in a different way, would create more testing and maintenance workload.
I'm aware of ps, windir, tasklist.exe possible solutions (worst comes to worst).
I found the JavaSysMon library but it seems dead and unfortunately:
CPU speed on Linux only reports correct values for Intel CPUs
Edit 1:
I'm on Pop_OS! and installed IntelliJ via the PopShop as flatpak.
In order to start it as root as suggested by mr mcwolf, I went to /home/username/.local/share/flatpak/app/com.jetbrains.IntelliJ-IDEA-Community/x86_64/stable/active/export/bin and found com.jetbrains.IntelliJ-IDEA-Community file.
When I run sudo ./com.jetbrains.IntelliJ-IDEA-Community or sudo /usr/bin/flatpak run --branch=stable --arch=x86_64 com.jetbrains.IntelliJ-IDEA-Community in my terminal, I get error: app/com.jetbrains.IntelliJ-IDEA-Community/x86_64/stable not installed
So I opened the file and ran its contents:
exec /usr/bin/flatpak run --branch=stable --arch=x86_64 com.jetbrains.IntelliJ-IDEA-Community "$#"
This opens IntelliJ, but not as root, so instead I ran:
exec sudo /usr/bin/flatpak run --branch=stable --arch=x86_64 com.jetbrains.IntelliJ-IDEA-Community "$#"
Which prompts for a password and when I write it in, the terminal crashes.
Edit 1.1:
(╯°□°）╯︵ ┻━┻ "flatpak run" is not intended to be ran with sudo
Edit 2:
As mr mcwolf said, I downloaded the IntelliJ from the official website, extracted it and ran the idea.sh as root.
Now a lot more processes are shown. 1/3 of them show up as INFO COMMAND: Optional.empty.
scriptProcessHandle.isPresent() is still unfortunately returning false. I searched through them and my_script.sh is nowhere to be found. I also tried processOptional.isPresent() && processOptional.get().equals("/absolute/path/to/my_script.sh") but I still get false on isPresent() and it's not in the list of shown processes.
Though the last sentence might be a different problem. I'll do more digging.
Edit 3:
Combining .commandLine() and .contains() (instead of .equals()) solves the problem mentioned in "Edit 2".
Optional<ProcessHandle> scriptProcessHandle = ProcessHandle.allProcesses().filter(processHandle -> {
System.out.println("INFO COMMAND LINE: " + processHandle.info().commandLine());
Optional<String> processOptional = processHandle.info().commandLine();
return processOptional.isPresent() && processOptional.get().contains("/absolute/path/to/my_script.sh");
}).findFirst();
System.out.println("Script process handle is present: " + scriptProcessHandle.isPresent());
if (scriptProcessHandle.isPresent()) { // Returns true
// Do stuff
}
.commandLine() also shows script arguments, so that must be kept in mind.
motivation:
I have a test that needs to write a short temp file (must be < 107 characters).
Currently the test is using
Files.createTempFile(null,".sock");
issue
which when running
I'm trying to figure out the java.io.tmp value when running java test using bazel. The different options I have is:
Setting $TEST_TMPDIR (or without)
Using "local"=True (or without)
Here is the result:
# local=True + TEST_TMPDIR=/btmp:
/btmp/_bazel_ors/719f891d5db9fd5e73ade25b0c847fd1/execroot/__main__/_tmp/8be6e61521c57d3cfc8585efa880e1ac/1638063256753562848.sock
# local=False + TEST_TMPDIR=/btmp:
/btmp/_bazel_ors/719f891d5db9fd5e73ade25b0c847fd1/bazel-sandbox/5561433121200492142/execroot/__main__/_tmp/8be6e61521c57d3cfc8585efa880e1ac/4867903879018296623.sock
# local=True , no TEST_TMPDIR:
/private/var/tmp/_bazel_ors/719f891d5db9fd5e73ade25b0c847fd1/execroot/__main__/_tmp/8be6e61521c57d3cfc8585efa880e1ac/984443110479498941.sock
# local=False , no TEST_TMPDIR:
/private/var/tmp/_bazel_ors/719f891d5db9fd5e73ade25b0c847fd1/bazel-sandbox/6199384508952843116/execroot/__main__/_tmp/8be6e61521c57d3cfc8585efa880e1ac/4588114364301475150.sock
Seems like the shortest temp prefix I can get is:
/private/var/tmp/_bazel_ors/719f891d5db9fd5e73ade25b0c847fd1/execroot/__main__/_tmp/
which is 85 char long (way too long for my needs).
How can I safely play with this configuration and make it a lot shorter?
note:
My env is mac osx sierra and I'm running bazel 0.5.1
Solvable by adding this to the jvm_flags of the test target:
"jvm_flags" = ["-Djava.io.tmpdir=/tmp"],
But note that it would make the test less hermetic
You can also tell bazel where it should store its outputs --output_base=/tmp/foo.
I'm trying to implement the Ruby Java Bridge (RJB) gem to talk to JVM so that I can run the Open-NLP gem. I have Java installed and running on Windows 8. All indications, at least those I know of, are that Java is installed and operational. But, attempts to use RJB fail with the message "can't create Java VM". (I do sometimes get "undefined method `dlopen' for Fiddle:Module" in other cases, which is also indecipherable.)
I initially just installed JDK per defaults. Due to my 64-bit system, this installed 64-bit Java. I wasn't sure whether or not Ruby and RJB would talk to this, so I installed the 32-bit JRE. However, the error is the same.
Is there any further test I can run to ensure that JVM is working outside of Ruby?
Can someone tell me what I might need to do to run Windows/Ruby/RJB/JVM?
Thanks...
I am running Windows 8 with BitNami Rubystack and Ruby 1.9.3p448.
Java seems to be available according to testjava.jsp:
This is the code, including the URL where I found it:
class FiddleTry
# http://devjete.wordpress.com/2011/01/31/installing-rjb-1-3-4-on-windows-7-32bit-wo-vc/
require 'rjb'
out = Rjb::import('java.lang.System').out <== Line 5 is here
out.print('Hello Rjb from ')
p out._classname
end
Here are the error messages:
C:/Users/Richard/RubymineProjects/Utilities/fiddle_try.rb:5:in `import': can't create Java VM (RuntimeError)
from C:/Users/Richard/RubymineProjects/Utilities/fiddle_try.rb:5:in `<class:FiddleTry>'
from C:/Users/Richard/RubymineProjects/Utilities/fiddle_try.rb:1:in `<top (required)>'
from -e:1:in `load'
from -e:1:in `<main>'
I cannot find any additional information as to why it "can't create Java VM". It would really help if additional information was available to me. I would appreciate either that information or a fix for this. Thanks...
EDIT TO ADD INFORMATION REGARDING OPEN-NLP REQUIREMENT FOR RJB...
This is the code I am trying to run, taken from Github/Open-nlp:
class OpenNlpSample
ENV['JAVA_HOME'] = "C:/Program Files/Java/jdk1.7.0_25" if ENV['JAVA_HOME'].nil?
ENV['LD_LIBRARY_PATH'] = "C:/Program Files/Java/jdk1.7.0_25/bin; C:/Program Files (x86)/Java/jre7" if ENV['LD_LIBRARY_PATH'].nil?
# Load the module
require 'open-nlp'
gem_bin = File.join(Gem.loaded_specs['open-nlp'].full_gem_path, 'bin/')
# Set an alternative path to look for the JAR files.
# Default is gem's bin folder.
# OpenNLP.jar_path = '/path_to_jars/'
# OpenNLP.jar_path = File.expand_path('../../ruby/lib/ruby/gems/1.9.1/gems/open-nlp-0.1.4/bin',__FILE__)
OpenNLP.jar_path = gem_bin
# Set an alternative path to look for the model files.
# Default is gem's bin folder.
# OpenNLP.model_path = '/path_to_models/'
OpenNLP.model_path = gem_bin
# Pass some alternative arguments to the Java VM.
# Default is ['-Xms512M', '-Xmx1024M'].
# OpenNLP.jvm_args = ['-option1', '-option2']
OpenNLP.jvm_args = ['-Xms512M', '-Xmx1024M']
# Redirect VM output to log.txt
OpenNLP.log_file = 'log.txt'
# Set default models for a language.
# OpenNLP.use :language
OpenNLP.use :english
=begin
Examples
Simple tokenizer
=end
OpenNLP.load
sent = "The death of the poet was kept from his poems."
tokenizer = OpenNLP::SimpleTokenizer.new
tokens = tokenizer.tokenize(sent).to_a
# => %w[The death of the poet was kept from his poems .]
#Maximum entropy tokenizer, chunker and POS tagger
OpenNLP.load
chunker = OpenNLP::ChunkerME.new
tokenizer = OpenNLP::TokenizerME.new
tagger = OpenNLP::POSTaggerME.new
sent = "The death of the poet was kept from his poems."
tokens = tokenizer.tokenize(sent).to_a
# => %w[The death of the poet was kept from his poems .]
tags = tagger.tag(tokens).to_a
# => %w[DT NN IN DT NN VBD VBN IN PRP$ NNS .]
chunks = chunker.chunk(tokens, tags).to_a
# => %w[B-NP I-NP B-PP B-NP I-NP B-VP I-VP B-PP B-NP I-NP O]
#Abstract Bottom-Up Parser
OpenNLP.load
sent = "The death of the poet was kept from his poems."
parser = OpenNLP::Parser.new
parse = parser.parse(sent)
parse.get_text.should eql sent
parse.get_span.get_start.should eql 0
parse.get_span.get_end.should eql 46
parse.get_child_count.should eql 1
child = parse.get_children[0]
child.text # => "The death of the poet was kept from his poems."
child.get_child_count # => 3
child.get_head_index #=> 5
child.get_type # => "S"
#Maximum Entropy Name Finder*
OpenNLP.load
text = File.read('./spec/sample.txt').gsub!("\n", "")
tokenizer = OpenNLP::TokenizerME.new
segmenter = OpenNLP::SentenceDetectorME.new
ner_models = ['person', 'time', 'money']
ner_finders = ner_models.map do |model|
OpenNLP::NameFinderME.new("en-ner-#{model}.bin")
end
sentences = segmenter.sent_detect(text)
named_entities = []
sentences.each do |sentence|
tokens = tokenizer.tokenize(sentence)
ner_models.each_with_index do |model,i|
finder = ner_finders[i]
name_spans = finder.find(tokens)
name_spans.each do |name_span|
start = name_span.get_start
stop = name_span.get_end-1
slice = tokens[start..stop].to_a
named_entities << [slice, model]
end
end
end
=begin
Loading specific models
Just pass the name of the model file to the constructor. The gem will search for the file in the OpenNLP.model_path folder.
=end
OpenNLP.load
tokenizer = OpenNLP::TokenizerME.new('en-token.bin')
tagger = OpenNLP::POSTaggerME.new('en-pos-perceptron.bin')
name_finder = OpenNLP::NameFinderME.new('en-ner-person.bin')
# etc.
#Loading specific classes
#You may want to load specific classes from the OpenNLP library that are not loaded by default. The gem provides an API to do this:
# Default base class is opennlp.tools.
OpenNLP.load_class('SomeClassName')
# => OpenNLP::SomeClassName
# Here, we specify another base class.
OpenNLP.load_class('SomeOtherClass', 'opennlp.tools.namefind')
# => OpenNLP::SomeOtherClass
end
At this point in the code:
=begin
Examples
Simple tokenizer
=end
OpenNLP.load
The call chain is to dl.rb, fiddle.rb and jar_loader.rb. jarloader.rb starting line 43:
# Load Rjb and create Java VM.
def self.init_rjb
::Rjb::load(nil, self.jvm_args)
set_java_logging if self.log_file
end
At this point, I get the same error creating JVM. So, I reverted to attempting to run RJB. The error chain is as follows:
Fast Debugger (ruby-debug-ide 0.4.17, ruby-debug-base19x 0.11.30.pre12) listens on 127.0.0.1:59488
Uncaught exception: can't create Java VM
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/jar_loader.rb:45:in `load'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/jar_loader.rb:45:in `init_rjb'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/jar_loader.rb:38:in `load_jar_rjb'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/jar_loader.rb:27:in `load'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:63:in `load_jar'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:71:in `block in load_default_jars'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:68:in `each'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:68:in `load_default_jars'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:55:in `bind'
D:/BitNami/rubystack-1.9.3-12/ruby/lib/ruby/gems/1.9.1/gems/open-nlp-0.1.4/lib/open-nlp.rb:14:in `load'
C:/Users/Richard/RubymineProjects/Utilities/open_nlp_sample.rb:32:in `<class:OpenNlpSample>'
C:/Users/Richard/RubymineProjects/Utilities/open_nlp_sample.rb:1:in `<top (required)>'
First, I needed to uninstall Java x64 and install JDK x586 for 32-bit support.
Then, set JAVA_HOME as follows:
JAVA_HOME=C:\Program Files (x86)\Java\jdk1.7.0_40
and add JAVA_HOME to my path:
%JAVA_HOME%\bin;C:\Program Files (x86)\Java\jre7\bin;
This resolved the "can't create Java VM' problem.
Setting $DEBUG=false, or commenting out the line, eliminated all other messages. $DEBUG mode displays error messages that may be caught and resolved so they can be ignored.
After the "can't create Java VM" problem was resolved, all other error messages were of this type and therefore were spurious.
JetBrains support for Rubymine solved this problem for me. They are very good, especially Serge, and I recommend their products because of their support.
I want to call CRF++ toolkit from a java program. I type the following:
Process process = runtime.exec("/home/toshiba/Bureau/CRF++-0.54/.libs/lt-crf_learn /home/toshiba/Bureau/CRF++-0.54/example/atb/template /home/toshiba/Bureau/CRF++-0.54/example/atb/tr_java.data");
process.waitFor();
But, I have the the following error:
CRF++: Yet Another CRF Tool Kit
Copyright (C) 2005-2009 Taku Kudo, All rights reserved.
Usage: /home/toshiba/Bureau/CRF++-0.54/.libs/lt-crf_learn [options] files
-f, --freq=INT use features that occuer no less than INT(default 1)
-m, --maxiter=INT set INT for max iterations in LBFGS routine(default 10k)
-c, --cost=FLOAT set FLOAT for cost parameter(default 1.0)
-e, --eta=FLOAT set FLOAT for termination criterion(default 0.0001)
-C, --convert convert text model to binary model
-t, --textmodel build also text model file for debugging
-a, --algorithm=(CRF|MIRA) select training algorithm
-p, --thread=INT number of threads(default 1)
-H, --shrinking-size=INT set INT for number of iterations variable needs to be optimal before considered for shrinking. (default 20)
-v, --version show the version and exit
-h, --help show this help and exit
I 'm wondering if any one could help me?
I don't think that's a bug in CRF++, since you are able to run it from command line. So the actual question is how to pass arguments properly when starting a process using Runtime.exec(). I would suggest trying the following:
String[] cmd = {"/home/toshiba/Bureau/CRF++-0.54/.libs/lt-crf_learn",
"/home/toshiba/Bureau/CRF++-0.54/example/atb/template",
"/home/toshiba/Bureau/CRF++-0.54/example/atb/tr_java.data"};
Process p = Runtime.getRuntime().exec(cmd);
This may help since Runtime.exec() sometimes splits the command line into arguments in a rather strange fashion.
Another potential problem is mentioned here: Java Runtime.exec()
There's a simple solution for this. Just write your command into a temporary file and execute that file as Runtime.getRuntime.exec("sh <temp-filename>"). Later you can delete this file. I will explain reason behind this if this solution works for you.
I need to run an .sh file and get its output. I need to see the setup of the file as well.
The .sh file simply runs a java app through terminal.
Any ideas? I'm truly stuck on this.....
Elijah
The server.sh file:
echo Starting Jarvis Program D.
ALICE_HOME=.
SERVLET_LIB=lib/servlet.jar
ALICE_LIB=lib/aliceserver.jar
JS_LIB=lib/js.jar
# Set SQL_LIB to the location of your database driver.
SQL_LIB=lib/mysql_comp.jar
# These are for Jetty; you will want to change these if you are using a different http server.
HTTP_SERVER_LIBS=lib/org.mortbay.jetty.jar
PROGRAMD_CLASSPATH=$SERVLET_LIB:$ALICE_LIB:$JS_LIB:$SQL_LIB:$HTTP_SERVER_LIBS
java -classpath $PROGRAMD_CLASSPATH -Xms64m -Xmx128m org.alicebot.server.net.AliceServer $1
My current code:
NSTask *server = [NSTask new];
[server setLaunchPath:#"/bin/sh"];
[server setArguments:[NSArray arrayWithObject:#"/applications/jarvis/brain/server.sh"]];
NSPipe *outputPipe = [NSPipe pipe];
[server setStandardInput:[NSPipe pipe]];
[server setStandardOutput:outputPipe];
[server launch];
NSMutableString *outputString = [NSMutableString string];
while ([outputString rangeOfString:#"Jarvis>"].location == NSNotFound) {
[outputString appendString:[[[NSString alloc] initWithData:[[outputPipe fileHandleForReading] readDataToEndOfFile] encoding:NSUTF8StringEncoding] autorelease]];
NSRunAlertPanel(#"", outputString, #"", #"", #"");
}
The NSRunAlertPanel is just for checking the output. Now my code is freezing and not even getting to the alertpanel.
See answer to this question.
There are a couple of things that should be fixed in your script:
The script should begin with a
shebang. Also make sure that the
script has its executable bit set.
Because the environment variables are set up relative to the shell script directory, you need to make sure that the script directory is the current directory.
You need to export the environment variables that should be visible to the Java process.
In the last line you can use exec to replace the shell process with the Java executable that runs Jetty.
Here is a revised version of your script:
#!/bin/sh
echo Starting Jarvis Program D.
cd "`dirname \"$0\"`"
export ALICE_HOME=.
export SERVLET_LIB=lib/servlet.jar
export ALICE_LIB=lib/aliceserver.jar
export JS_LIB=lib/js.jar
# Set SQL_LIB to the location of your database driver.
export SQL_LIB=lib/mysql_comp.jar
# These are for Jetty; you will want to change these if you are using a different http server.
export HTTP_SERVER_LIBS=lib/org.mortbay.jetty.jar
export PROGRAMD_CLASSPATH=$SERVLET_LIB:$ALICE_LIB:$JS_LIB:$SQL_LIB:$HTTP_SERVER_LIBS
exec java -classpath $PROGRAMD_CLASSPATH -Xms64m -Xmx128m org.alicebot.server.net.AliceServer $1
Invoking the shell script in Objective-C with multiple arguments:
NSTask *server = [NSTask new];
[server setLaunchPath:#"/bin/sh"];
[server setArguments:[NSArray arrayWithObjects:#"/applications/jarvis/brain/server.sh", #"argument", nil]];
...
Using AMShellWrapperTest.app you can filter (save, ...) the stdout stream of server.sh by modifying "- (void)appendOutput:(NSString *)output" in BannerController.m. (... but maybe there is a better way to do this ...)
/*
// output from stdout
- modified AMShellWrapper/AMShellWrapperTest/BannerController.m (http://www.harmless.de/cocoa-code.php)
to print server.sh setup information to "Error Messages:" text output field (or Console.app as an
alternative) and the Q & A dialog to the "Output:" text field
- use of default charliebot, http://sourceforge.net/projects/charliebot/, modified only to run server.sh
with complete path (here: ~/Desktop/charliebot/server.sh) in AMShellWrapperTest.app
*/
- (void)appendOutput:(NSString *)output
{
NSMutableString *outputString = [NSMutableString string];
if (
([output rangeOfString:#"Charlie>"].location != NSNotFound ) || \
([output rangeOfString:#"[Charlie] user>"].location != NSNotFound )
) {
[self write: output];
[self write: #"\n"];
} else {
[outputString appendString: output];
//[outputString writeToFile:#"/dev/console" atomically: NO]; // alternative
[errorOutlet setString:[[errorOutlet string] stringByAppendingString: outputString]];
}
}
yes, but why isn't my code (posted above) not working?
I guess your "Jarvis>" line is the first line of the server.sh ouput stream that expects some user input, which means that this line is incomplete without a terminating newline character "\n". If server.sh had been run in Terminal.app, the user would have to press the return key to let the dialog continue. The conditional code of the while loop (NSNotFound) cannot finish its job on this incomplete line (which would be to abort the while loop) and gets stuck.
You have to drop the while loop and use the 'readInBackgroundAndNotify' mode on NSFileHandle to get non-blocking I/O stdout stream behaviour!
See: NSTask/NSPipe STDIN hangs on large data, sometimes...
So, if you like, just transform the source code of AMShellWrapperTest.app into a pure command-line tool by removing the GUI code.