file path in hdfs

I want to read the file from the Hadoop File System.

In order to achieve the correct path of the file, I need host name and port address of the hdfs.

so finally my path of the file will look something like

Path path = new Path("hdfs://123.23.12.4344:9000/user/filename.txt")

Now I want to know to extract the HostName = "123.23.12.4344" & port: 9000?

Basically, I want to access the FileSystem on Amazon EMR but, when I use

 FileSystem fs = FileSystem.get(getConf());

 
You possibly called FileSystem.get(conf) when you should have called FileSystem.get(uri, conf) to obtain a file system supporting your path