Java String Extract extractNoPublicDomains(String domains)

Description

extract No Public Domains

License

Open Source License

Declaration

public static int extractNoPublicDomains(String domains) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;

import java.util.List;

public class Main {
    public static int extractNoPublicDomains(String domains) {
        if (domains == null)
            return 0;
        return extractNoItems(domains) - extractNoPrivateDomains(domains);
    }//from  w  ww  .  ja  v a 2s.  com

    public static int extractNoItems(String items) {
        if (items == null)
            return 0;
        List<String> itemList = extractItems(items);
        return itemList.size();
    }

    public static int extractNoPrivateDomains(String domains) {
        if (domains == null)
            return 0;
        if (domains.contains("\"owned\"")) //we can have at most one private domain
            return 1;
        return 0;
    }

    /**
     * splits a string of type {("A","B<C,D>","C")} into ["A", "B<C,D>", "C"]
     * */
    public static List<String> extractItems(String items) {
        List<String> itemList = new ArrayList<String>();
        if (items == null)
            return itemList;
        items = items.replace(" ", ""); //remove all spaces      
        if (items.split("\"(.)*\"").length == 1)
            return itemList;
        String[] arrayItems = items.split("\",");

        for (int i = 0; i < arrayItems.length; i++) {
            //there is exactly one " in each arrayItem[i], and we need the string from the right of it
            String[] rightStr = arrayItems[i].split("\"");
            if (rightStr.length > 0)
                itemList.add(rightStr[1]);
        }
        return itemList;
    }
}

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