Java List Size sizeOfStringToStringListMap( Map> m)

Description

size Of String To String List Map

License

Apache License

Declaration

public static int sizeOfStringToStringListMap(
            Map<String, List<String>> m) 

Method Source Code

//package com.java2s;
/*//from  w  w  w.j av  a 2  s .co  m
 *      Copyright (C) 2012-2015 DataStax Inc.
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

import java.util.*;

public class Main {
    public static int sizeOfStringToStringListMap(
            Map<String, List<String>> m) {
        int size = 2;
        for (Map.Entry<String, List<String>> entry : m.entrySet()) {
            size += sizeOfString(entry.getKey());
            size += sizeOfStringList(entry.getValue());
        }
        return size;
    }

    public static int sizeOfString(String str) {
        return 2 + encodedUTF8Length(str);
    }

    public static int sizeOfStringList(List<String> l) {
        int size = 2;
        for (String str : l)
            size += sizeOfString(str);
        return size;
    }

    private static int encodedUTF8Length(String st) {
        int strlen = st.length();
        int utflen = 0;
        for (int i = 0; i < strlen; i++) {
            int c = st.charAt(i);
            if ((c >= 0x0001) && (c <= 0x007F))
                utflen++;
            else if (c > 0x07FF)
                utflen += 3;
            else
                utflen += 2;
        }
        return utflen;
    }
}

Related

1. size(List list)
2. size(Object[] list)
3. sizeNotNull(final List list)
4. sizeOf(List l)
5. sizeOfListMap(Map> map)
6. sizeSafe(List list)