I've made an app that sends a file from my pc to my phone but I can't figure out how to save it to Internal storage or to a folder I can access. Can someone please help?
Looks like you need to use the FileSystem API. According to the documentation here, you need to first install it:
expo install expo-file-system
And of course, import it where needed:
import * as FileSystem from 'expo-file-system';
After which you should be able to use the method FileSystem.writeAsStringAsync and save the file to the FileSystem.documentDirectory:
FileSystem.writeAsStringAsync(
FileSystem.documentDirectory + 'filename.ext',
"some file contents or variable");
Look around the documentation about FileSystem - there are many useful methods and some examples that should help you.
Related
I am trying to plot maps using Cartopy offline. I've found this post:
Location of stored offline data for cartopy
However, after changing cartopy.config['data_dir'] to 'C:/...' where the downloaded files are located, when I try to draw coastlines, it still wants to download the map.
cartopy.config['data_dir'] = '.../CartopyMaps'
ax = plt.axes(projection=ccrs.PlateCarree())
ax.coastlines()
The console says :
Downloading:
http://naciscdn.org/naturalearth/110m/physical/ne_110m_coastline.zip
However, I have ne_110m_coastline dbf, shp, and shx files in .../CartopyMaps/shapefiles/natural_earth/physical/
Why does Cartopy not see my local maps and how can I help it?
Try using the "pre_existing_data_dir" path instead of the "data_dir".
from os.path import expanduser
import cartopy
cartopy.config['pre_existing_data_dir'] = expanduser('~/cartopy-data/')
i had the similar problem and was confused for quite a while. after i downloaded the whole offline dataset and put them in the right dir, after runing the code
...
states = NaturalEarthFeature(category="cultural", scale="50m",
facecolor="none",
name="admin_1_states_provinces_shp")
...
the console still says:
Downloading:
...50m/cultural/ne_50m_admin_1_states_provinces_lines_shp.zip
however, i found there is a slight difference between the file ne_50m_admin_1_states_provinces_lines.shp i downloaded and the file ne_50m_admin_1_states_provinces_lines_shp.zip cartopy tries to acquire ('_shp').
therefore i changed the command into this and it worked:
states = NaturalEarthFeature(category="cultural", scale="50m",
facecolor="none",
name="admin_1_states_provinces")
I have experience with python, but I just got started learning how to develop addons for Kodi. Having a bit of trouble understanding the docs.
Is it possible to import or otherwise access python code from another plugin or script?
For example if my addon was: script.hello.world and i wanted to use some_method from plugin.video.someplugin.
addon.xml imports the plugin i wish to access:
<requires>
<import addon="xbmc.python" version="2.14.0"/>
<import addon="plugin.video.plexbmc" version="3.4.5" optional="true"/>
</requires>
I was fairly sure this would not work, and i was correct:
from plugin.video.someplugin.default import some_method
The only thing in the docs that looked like it might work was this:
spi = xbmcaddon.Addon ('plugin.video.someplugin')
I can access the xbmc's built in methods of spi, but no way to get to the actual python objects.
Got it! Simply add the desired directory to the system's python path:
spi = xbmcaddon.Addon ('plugin.video.someplugin')
path = spi.getAddonInfo('path')
sys.path.append (xbmc.translatePath( os.path.join( path) ))
from default import some_method
some_method()
How can I create a Java or Javascript JSON webservice to retrieve data from a simple properties file? My intention is to uses this as a global property storage for a Jenkins instance that runs many Unit tests. The master property file also needs to be capable of being manually edited and stored in source control.
I am just wondering what method people would recommend that would be the easiest for a junior level programmer like me. I need read capability at miniumum but, and if its not too hard, write capability also. Therefore, that means it is not required to be REST.
If something like this already exists in Java or Groovy, a link to that resource would be appreciated. I am a SoapUI expert but I am unsure if a mock service could do this sort of thing.
I found something like this in Ruby but I could not get it to work as I am not a Ruby programmer at all.
There are a multitude of Java REST frameworks, but I'm most familiar with Jersey so here's a Groovy script that gives a simple read capability to a properties file.
#Grapes([
#Grab(group='org.glassfish.jersey.containers', module='jersey-container-grizzly2-http', version='2.0'),
#Grab(group='org.glassfish.jersey.core', module='jersey-server', version='2.0'),
#Grab(group='org.glassfish.jersey.media', module='jersey-media-json-jackson', version='2.0')
])
import org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory
import org.glassfish.jersey.jackson.JacksonFeature
import javax.ws.rs.GET
import javax.ws.rs.Path
import javax.ws.rs.Produces
#Path("properties")
class PropertiesResource {
#GET
#Produces("application/json")
Properties get() {
new File("test.properties").withReader { Reader reader ->
Properties p = new Properties()
p.load(reader)
return p
}
}
}
def rc = new org.glassfish.jersey.server.ResourceConfig(PropertiesResource, JacksonFeature);
GrizzlyHttpServerFactory.createHttpServer('http://localhost:8080/'.toURI(), rc).start()
System.console().readLine("Press any key to exit...")
Unfortunately, since Jersey uses the 3.1 version of the asm library, there are conflicts with Groovy's 4.0 version of asm unless you run the script using the groovy-all embeddable jar (it won't work by just calling groovy on the command-line and passing the script). I also had to supply an Apache Ivy dependency. (Hopefully the Groovy team will resolve these in the next release--the asm one in particular has caused me grief in the past.) So you can call it like this (supply the full paths to the classpath jars):
java -cp ivy-2.2.0.jar:groovy-all-2.1.6.jar groovy.lang.GroovyShell restProperties.groovy
All you have to do is create a properties file named test.properties, then copy the above script into a file named restProperties.groovy, then run via the above command line. Then you can run the following in Unix to try it out.
curl http://localhost:8080/properties
And it will return a JSON map of your properties file.
I'm working on a project in C# that involves parsing .pst files and my group has chosen to use the Redemption library to do so. We have successfully parsed the email files in to RDOMail objects, however now we want to write a subset of those emails to a new .pst file. I have successfully written the subset to .eml files using the email.SaveAs() function, but I'm at a loss to figure out how to save that list as a .pst. I've been sifting through the documentation, however it leaves much to be desired. Can anyone who has used Redemption point me in the right direction or provide an example?? Thanks in advance for your help!
You will need to create/open a PST file using RDOSession.Stores.AddPstStore (returns RDOPSTStore object). Once you have the store, you can open/create folders (starting with the RDOStore.IPMRootFolder), create messages (RDOFolder.Items.Add) and copy old messages into new messages (RDOMail.CopyTo(RDOMail/RDOFolder)).
I have been struggling to do this for the last few hours and would like to save that time to others
You have to install redemption and add it as a reference to your project for it to work
RDOSession session = new RDOSession(); // throws exception 1
session.LogonPstStore(#"c:\temp\output.pst");
RDOFolder folder = session.GetDefaultFolder(rdoDefaultFolders.olFolderInbox);
string[] fileEntries = Directory.GetFiles(#"C:\emlFiles\", "*.eml");
foreach (string filePath in fileEntries)
{
RDOMail mail = folder.Items.Add("IPM.Mail");
mail.Sent = true;
mail.Import(filePath, 1024);
// folder.Items.Add(mail);
mail.Save();
}
session.Logoff();
I also created a small sample windows forms app for it, I know the code is ugly but it does the trick
I wrote some code to read a file in my Java Servlet class. (I'm using Netbeans on Windows along with Tomcat server). However, my servlet cannot find the file!
After much digging, I found that I had to place the file I wanted to read in Tomcat/bin folder. That's very surprising. How can I get the path to my Webapps/ folder? Let's assume my website project is called "Web1".
Essentially what I'm doing is I'm trying to read my .xsl file for converting my DOM Document to be an HTML. At first I tried placing this .xsl file everywhere (at the same level as my index.jsp, in the same directory as my servlet class file, etc...but didnt work at all)
Also, when I finished transform(), my HTML file also goes into the Tomcat/bin folder~!
Can you use javax.servlet.ServletContext.getRealPath(String path)?
Returns a String containing the real path for a given virtual path. For example, the path "/index.html" returns the absolute file path on the server's filesystem would be served by a request for "http://host/contextPath/index.html", where contextPath is the context path of this ServletContext..
The real path returned will be in a form appropriate to the computer and operating system on which the servlet container is running, including the proper path separators. This method returns null if the servlet container cannot translate the virtual path to a real path for any reason (such as when the content is being made available from a .war archive).
Where are you consuming that XSL? If from your Java code place the file into src/java/resources so it will end up in the top of your classpath when the WAR is assembled /WEB-INF/classes/foo.xsl. Then you can use Class#getResource("foo.xsl") or even better if you are using DOM4J or equivalent there are ways of loading the file.
Now if it is you JavaScript that performs the transformation on the client that's a different story
Something like this might be more convenient for you:
java.net.URL url = ClassLoader.getSystemResource(file_name);
try {
InputStream is = url.openStream());
//Read the file and do stuff
} catch(IOException e) {
System.err.println("Error: could not load the file");
}
This will allow you to get an InputStream for a file within the classpath (in your case, something in the webapps folder). As for writing results, I'm not sure.