Skip to content

Instantly share code, notes, and snippets.

@jkentjnr
Created May 27, 2015 00:00
Show Gist options
  • Save jkentjnr/8f4217f9027c2427227f to your computer and use it in GitHub Desktop.
Save jkentjnr/8f4217f9027c2427227f to your computer and use it in GitHub Desktop.
Blog - AVOID “REGEX TOO COMPLICATED” ISSUES PROCESSING LARGE FILES
public with sharing class Utility_RowIterator implements Iterator<String>, Iterable<String>
{
private String m_Data;
private Integer m_index = 0;
private String m_rowDelimiter = '\n';
public Utility_RowIterator(String fileData)
{
m_Data = fileData;
}
public Utility_RowIterator(String fileData, String rowDelimiter)
{
m_Data = fileData;
m_rowDelimiter = rowDelimiter;
}
public Boolean hasNext()
{
return m_index < m_Data.length() ? true : false;
}
public String next()
{
Integer key = m_Data.indexOf(m_rowDelimiter, m_index);
if (key == -1)
key = m_Data.length();
String row = m_Data.subString(m_index, key);
m_index = key + 1;
return row;
}
public Iterator<String> Iterator()
{
return this;
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment