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baltoto client lib
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package io.baltoro.client.util;

import java.util.Base64;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import io.baltoro.obj.Base;

public class StringUtil 
{
	public static boolean isNullOrEmpty(String str)
	{
		if(str != null && str.length() > 0)
		{
			return false;
		}
		
		return true;
			
	}
	
	
	public static String pad(String text, int count, char c)
	{
		StringBuilder s = new StringBuilder();
		
		if (count % 2 != 0)
		{
			count++;
		}
		
		int c2 = count-text.length();
		
		int c1 = Math.abs(c2)-2;
		for (int i = 0; i < c1; i++)
		{
			s.append(c);
		}
		
		if(c1 <= 0)
		{
			s.append(text);
			
		}
		else
		{
			s.append(" "+text+" ");
		}
		
		
		for (int i = 0; i < c1; i++)
		{
			s.append(c);
		}
		
		return s.toString();
	}
	
	public static boolean isNullOrEmpty(Object[] objs)
	{
		if(objs != null && objs.length > 0)
		{
			return false;
		}
		
		return true;
			
	}
	
	public static boolean isNullOrEmpty(Collection col)
	{
		if(col != null && col.size() > 0)
		{
			return false;
		}
		
		return true;
			
	}
	
	public static boolean isNotNullAndNotEmpty(String str)
	{
		if(str != null && str.length() > 0)
		{
			return true;
		}
		
		return false;	
	}
	
	public static boolean isNotNullAndNotEmpty(Object[] str)
	{
		if(str != null && str.length > 0)
		{
			return true;
		}
		
		return false;	
	}
	
	public static boolean isNotNullAndNotEmpty(Collection col)
	{
		if(col != null && col.size() > 0)
		{
			return true;
		}
		
		return false;	
	}
	
	
	public static String stripPhoneNumber(String phoneNumber)
	{
		StringBuffer str = new StringBuffer();
		
		char[] chars = phoneNumber.toCharArray();
		for (int i = 0; i < chars.length; i++) 
		{
			char c = chars[i];
			if(c >= '0' && c <= '9')
			{
				str.append(chars[i]);
			}
		}
		return str.toString();
	}

	
	
	public static String encode(byte[] bytes)
	{
		return Base64.getEncoder().encodeToString(bytes);
	}
	
	public static byte[] decode(String str)
	{
		return Base64.getDecoder().decode(str);
	}
	
	
	public static String[] toUuids(Base[] objs)
	{
		String[] uuids = new String[objs.length];
		
		for (int i=0;i list)
	{
		if(list == null || list.size() == 0)
		{
			return "";
		}
		
		StringBuilder buffer = new StringBuilder(list.size() * 10); 
		for (Object val : list) 
		{
			buffer.append("'"+val+"',");
			/*
			if(val instanceof String)
			{
				buffer.append("'"+val+"',");
			}
			else if(val instanceof Base)
			{
				buffer.append("'"+((Base)val).getBaseUuid()+"',");
			}
			*/
		}
		buffer.deleteCharAt(buffer.length()-1);
		
		return buffer.toString();
	}
		
	
	public static String toInClause(Base... bases)
	{
		StringBuilder buffer = new StringBuilder(bases.length * 10); 
		for (Base base : bases) 
		{
			buffer.append("'"+base.getBaseUuid()+"',");
		}
		buffer.deleteCharAt(buffer.length()-1);
		
		return buffer.toString();
	}

	
	public static String toInClause(Collection col)
	{
		if(col==null || col.isEmpty())
		{
			return "";
		}
		
		StringBuilder buffer = new StringBuilder(col.size() * 10); 
		Iterator it = col.iterator();
		while(it.hasNext())
		{
			String val = it.next();
			buffer.append("'"+val+"',");
		}
		buffer.deleteCharAt(buffer.length()-1);
		
		return buffer.toString();
	}
	
	public static String toInClauseForMetadata(Collection col)
	{
		if(col==null || col.isEmpty())
		{
			return "";
		}
		
		StringBuilder buffer = new StringBuilder(col.size() * 10); 
		Iterator it = col.iterator();
		while(it.hasNext())
		{
			Base val = it.next();
			buffer.append("'"+val.getLatestVersionUuid()+"',");
		}
		buffer.deleteCharAt(buffer.length()-1);
		
		return buffer.toString();
	}
	
	
}