Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;

public class Main {

    public static String assembleSignString(Map<String, Object> paramValueMap, List<String> ignoreParamNameList,
            String secret, boolean isHeadSecret) {

        List<String> filteredAndSortedParamNames = filterAndSortedParamNames(paramValueMap, ignoreParamNameList);
        StringBuilder assembledString = new StringBuilder();
        if (isHeadSecret) {
            assembledString.append(secret);
        }
        for (String paramName : filteredAndSortedParamNames) {
            Object paramValue = paramValueMap.get(paramName);
            if (paramValue != null) {
                assembledString.append(paramName).append(paramValue);
            }
        }
        assembledString.append(secret);

        return assembledString.toString();
    }

    private static List<String> filterAndSortedParamNames(Map<String, Object> paramValueMap,
            List<String> ignoreParamNameList) {
        List<String> filteredParamNames = filterParamNames(paramValueMap, ignoreParamNameList);
        Collections.sort(filteredParamNames);
        return filteredParamNames;
    }

    private static List<String> filterParamNames(Map<String, Object> paramValueMap,
            List<String> ignoreParamNameList) {
        List<String> filteredParamNames = new ArrayList<>(paramValueMap.size());
        filteredParamNames.addAll(paramValueMap.keySet());
        if (ignoreParamNameList != null && ignoreParamNameList.size() > 0) {
            for (String ignoreParamName : ignoreParamNameList) {
                filteredParamNames.remove(ignoreParamName);
            }
        }
        return filteredParamNames;
    }
}