com.hw.serpapi.ParameterStringBuilder Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package com.hw.serpapi;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Map;
/**
* Encode parameter hash into a string to be sent over HTTP
*
* @author HamaWhite
*/
public class ParameterStringBuilder {
/***
* getParamsString
*
* @param params search parameters
* @return concatenated parameters
* @throws UnsupportedEncodingException when none UTF-8 character is part of the parameter
*/
public static String getParamsString(Map params) throws UnsupportedEncodingException {
StringBuilder result = new StringBuilder();
for (Map.Entry entry : params.entrySet()) {
result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
result.append("=");
result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
result.append("&");
}
String resultString = result.toString();
return resultString.length() > 0
? resultString.substring(0, resultString.length() - 1)
: resultString;
}
}