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package com.emc.mongoose.common.supply;

import com.emc.mongoose.common.exception.UserShootHisFootException;

import java.util.regex.Pattern;

import static com.emc.mongoose.common.supply.RangeDefinedSupplier.RANGE_DELIMITER;

public interface SupplierFactory> {

	// pay attention to the matcher groups
	String DOUBLE_REG_EXP = "([-+]?\\d*\\.?\\d+)";
	String LONG_REG_EXP = "([-+]?\\d+)";
	String DATE_REG_EXP = "(((19|20)[0-9][0-9])/(1[012]|0?[1-9])/(3[01]|[12][0-9]|0?[1-9]))";
	
	// Pay attention to the escape symbols
	static String rangeRegExp(final String typeRegExp) {
		return typeRegExp + RANGE_DELIMITER + typeRegExp;
	}
	
	Pattern DOUBLE_PATTERN = Pattern.compile(rangeRegExp(DOUBLE_REG_EXP));
	Pattern LONG_PATTERN = Pattern.compile(rangeRegExp(LONG_REG_EXP));
	Pattern DATE_PATTERN = Pattern.compile(rangeRegExp(DATE_REG_EXP));
	
	String[] INPUT_DATE_FMT_STRINGS = new String[] {
		"yyyy/MM/dd", "yyyy/MM/dd'T'HH:mm:ss"
	};
	
	enum State {
		EMPTY, RANGE, FORMAT, FORMAT_RANGE
	}
	
	G createSupplier(
		final char type, final String seedStr, final String formatStr, final String rangeStr
	) throws UserShootHisFootException;

}