com.sojw.ahnchangho.core.util.UriUtils.java Source code

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Here is the source code for com.sojw.ahnchangho.core.util.UriUtils.java

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/* 
* UriUtil.java 2016. 8. 11. 
* 
* Copyright 2016 NAVER Corp. All rights Reserved. 
* NAVER PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. 
*/
package com.sojw.ahnchangho.core.util;

import java.net.URI;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.commons.collections4.MapUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.util.UriComponentsBuilder;

import com.fasterxml.jackson.core.type.TypeReference;
import com.google.common.base.Strings;

/**
 * The Class UriUtils.
 */
public class UriUtils {

    /**
     * Of.
     *
     * @param url the url
     * @param queryParameters the query parameters
     * @return the uri
     */
    public static URI of(String url, Map<String, String> queryParameters) {
        if (Strings.isNullOrEmpty(url)) {
            return null;
        }

        return UriComponentsBuilder.fromHttpUrl(url).queryParams(multiValueMap(queryParameters)).build().encode()
                .toUri();
    }

    /**
     * Of.
     *
     * @param url the url
     * @param pathVariables the path variables
     * @param queryParameters the query parameters
     * @return the uri
     */
    public static URI of(String url, Map<String, String> pathVariables, Map<String, String> queryParameters) {
        if (Strings.isNullOrEmpty(url)) {
            return null;
        }

        return UriComponentsBuilder.fromHttpUrl(url).queryParams(multiValueMap(queryParameters))
                .buildAndExpand(pathVariables).encode().toUri();
    }

    /**
     * Multi value map.
     *
     * @param map the map
     * @return the multi value map
     */
    public static MultiValueMap<String, String> multiValueMap(Map<String, String> map) {
        if (MapUtils.isEmpty(map)) {
            return null;
        }

        MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
        for (Map.Entry<String, String> entry : map.entrySet()) {
            params.add(entry.getKey(), entry.getValue());
        }
        return params;
    }

    /**
     * Multi value map.
     *
     * @param <T> the generic type
     * @param request the request
     * @return the string
     */
    public static <T> MultiValueMap<String, String> multiValueMap(final T request) {
        if (request == null) {
            return null;
        }

        Map<String, Object> requestMap = JsonUtils.convertValue(request, new TypeReference<Map<String, Object>>() {
        });
        if (MapUtils.isEmpty(requestMap)) {
            return null;
        }

        MultiValueMap<String, String> parameters = new LinkedMultiValueMap<String, String>();
        for (Entry<String, Object> entry : requestMap.entrySet()) {
            if (entry.getValue() instanceof List) {
                ((List) entry.getValue()).forEach(each -> {
                    parameters.add(entry.getKey(), each.toString());
                });
            } else {
                parameters.add(entry.getKey(), entry.getValue().toString());
            }
        }

        return parameters;
    }

    /**
     * Url with param.
     *
     * @param requestURL the request URL
     * @param queryString the query string
     * @return the string
     */
    public static String of(final String requestURL, final String queryString) {
        final String url = StringUtils.defaultIfEmpty(requestURL, StringUtils.EMPTY).toString();
        if (Strings.isNullOrEmpty(url)) {
            return StringUtils.EMPTY;
        }

        return url + (queryString == null ? StringUtils.EMPTY : "?" + queryString);
    }
}