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package util;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
public class InputOutput {
/**
* Opens a file either compress with gzip or not compressed.
*/
public static BufferedReader openReader(String fileName) throws UnsupportedEncodingException, FileNotFoundException, IOException{
System.out.println("Reading: " + fileName);
BufferedReader reader;
fileName = fileName.trim();
if(fileName.endsWith("gz")){
reader = new BufferedReader(
new InputStreamReader(new GZIPInputStream(new FileInputStream(fileName)),"UTF8"));
}else{
reader = new BufferedReader(new InputStreamReader(
new FileInputStream(fileName), "UTF8"));
}
return reader;
}
public static PrintStream openWriter(String fileName)
throws UnsupportedEncodingException, FileNotFoundException, IOException{
System.out.println("Writting to file: " + fileName);
PrintStream writter;
fileName = fileName.trim();
if(fileName.endsWith("gz")){
writter = new PrintStream(new GZIPOutputStream(new FileOutputStream(fileName)),
true, "UTF-8");
}else{
writter = new PrintStream(new FileOutputStream(fileName),
true, "UTF-8");
}
return writter;
}
public static Properties readPropertiesFile(String fileName) {
Properties properties = new Properties();
try {
properties.load(new FileInputStream(fileName));
} catch (IOException e) {
e.printStackTrace();
throw new AssertionError("Wrong properties file " + fileName);
}
System.out.println(properties.toString());
return properties;
}
}
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