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/*******************************************************************************
* Copyright (c) 2016 AT&T Intellectual Property. All rights reserved.
*******************************************************************************/
package com.att.authz.helpers;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Iterator;
public class InputIterator implements Iterable<String> {
private BufferedReader in;
private final PrintStream out;
private final String prompt, instructions;
public InputIterator(BufferedReader in, PrintStream out, String prompt, String instructions) {
this.in = in;
this.out = out;
this.prompt = prompt;
this.instructions = instructions;
}
@Override
public Iterator<String> iterator() {
out.println(instructions);
return new Iterator<String>() {
String input;
@Override
public boolean hasNext() {
out.append(prompt);
try {
input = in.readLine();
} catch (IOException e) {
input = null;
return false;
}
return input.length()>0;
}
@Override
public String next() {
return input;
}
@Override
public void remove() {
}
};
}
}
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