com.spun.util.parser.FileLocator Maven / Gradle / Ivy
package com.spun.util.parser;
import java.io.File;
import java.util.Arrays;
import java.util.HashMap;
public class FileLocator implements ResourceLocator
{
private HashMap paths = new HashMap();
private boolean failOnNotFound = true;
private String[] basePaths;
public FileLocator(String[] basePaths)
{
this(basePaths, true);
}
public FileLocator(String[] basePaths, boolean failOnNotFound)
{
this.basePaths = basePaths;
this.failOnNotFound = failOnNotFound;
}
public String getLocation(String fileName)
{
String absolutePath = paths.get(fileName);
if (absolutePath == null)
{
for (int i = 0; i < basePaths.length; i++)
{
File file = new File(basePaths[i] + File.separator + fileName);
if (file.exists())
{
absolutePath = registerFile(fileName, file);
break;
}
}
}
if (absolutePath == null)
{
if (failOnNotFound)
{
throw new NullPointerException(" The file '" + fileName + "' could not be found in "
+ Arrays.asList(basePaths).toString() + " with base dir = " + new File(".").getAbsolutePath());
}
else
{
File file = new File(basePaths[0] + File.separator + fileName);
absolutePath = registerFile(fileName, file);
}
}
return absolutePath;
}
private String registerFile(String fileName, File file)
{
String absolutePath = file.getAbsolutePath();
paths.put(fileName, absolutePath);
return absolutePath;
}
}