Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.Collections;

import java.util.HashMap;
import java.util.Map;
import java.util.StringTokenizer;

public class Main {
    /**
     * Parses and returns CGI arguments.
     * 
     * @param rest the string to parse
     * @return CGI arguments from <tt>rest</tt>
     */
    public static Map<String, String> parseArgs(final String rest) {
        if (isEmpty(rest))
            return Collections.emptyMap();
        final Map<String, String> res = new HashMap<String, String>(3);
        for (StringTokenizer st = new StringTokenizer(rest, "&", false); st.hasMoreTokens();) {
            final String pair = st.nextToken();
            final int ieq = pair.indexOf('=');
            String key, val;
            if (ieq == -1) {
                key = pair;
                val = null;
            } else {
                key = pair.substring(0, ieq);
                val = pair.substring(ieq + 1);
            }
            res.put(key.trim(), val == null ? val : val.trim());
        }
        return res;
    }

    /**
     * Returns <code>true</code> if <code>s</code> is <code>null</code> or
     * <code>""</code>, otherwise <code>false</code>.
     * 
     * @param s {@link String} in question
     * @return <code>true</code> if <code>s</code> is <code>null</code> or
     *         <code>""</code>, otherwise <code>false</code>.
     */
    public static boolean isEmpty(final String s) {
        return s == null || s.equals("");
    }
}