I have a txt-file in my web-app folder which I want to read. It contains a lot of text which should be stored in some database objects during startup so instead of putting the text into bootstrap.groovy, I wrote a reader method in a separate Util-Class. The util-class is placed in Grails utils folder and is injected into bootstrap.groovy. It works perfectly on my local machine when running "grails run-app" but the deployed war on my server just says
2014-01-15 17:38:23,508 [localhost-startStop-1] ERROR context.GrailsContextLoader - Error initializing the application: null java.lang.IllegalArgumentException at FileUtils.readFile(FileUtils.groovy:23) at BootStrap$_closure1.doCall(BootStrap.groovy:260) at grails.util.Environment.evaluateEnvironmentSpecificBlock(Environment.java:308) at grails.util.Environment.executeForEnvironment(Environment.java:301) at grails.util.Environment.executeForCurrentEnvironment(Environment.java:277) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724)
It means this piece of code:
println ("PATH: " + org.codehaus.groovy.grails.web.context.ServletContextHolder.getServletContext().getRealPath('hilfethemen.txt'))
Any suggestions? I've tried a lot but many blog posts are outdated. Thank you!
EDIT: My Bootstrap code looks like this:
class BootStrap {
def statladsService
def init = { servletContext ->
// read helptopics
ArrayList<String> hilfethemen = new ArrayList<String>();
String content = FileUtils.readFile("hilfethemen.txt")
println ("STRING: " + content)
if(content!=null) {
for(String hilfethema : content.split("<hilfethema>")) {
hilfethemen.add(hilfethema);
}
ArrayList<String> clearLines = new ArrayList<String>();
for(String hilfethema : hilfethemen) {
def page = new Page()
for(String line : hilfethema.split("\n")) {
if(line.split("=")[0].equals("title")) {
// title
page.title=line.split("=")[1];
} else if(line.split("=")[0].equals("content")) {
// content
String lineContent=line.split("=")[1];
page.content=lineContent
}
}
page.save(flush:true)
}
}
}
}
Util-Class actually looks like this:
import org.apache.commons.io.IOUtils
import sun.nio.cs.StandardCharsets
import java.io.*;
public class FileUtils {
/**
* Reads a file and returns its content as UTF-8
* @param path
* @return
*/
public static String readFile(String path) {
String content = "";
/*
File fileDir = new File(path);
if(!fileDir.exists()) {
return null;
}
*/
println ("PATH: " + org.codehaus.groovy.grails.web.context.ServletContextHolder.getServletContext().getRealPath('hilfethemen.txt'))
BufferedReader buf = new BufferedReader(new InputStreamReader(new FileInputStream(org.codehaus.groovy.grails.web.context.ServletContextHolder.getServletContext().getRealPath('hilfethemen.txt')), "UTF-8"));
String str;
try {
while ((str = buf.readLine()) != null) {
content+=str+"\n";
}
} catch (IOException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
try {
buf.close();
} catch (IOException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
return content;
}
}
