package com.epam.wilma.service.util;
/*==========================================================================
Copyright 2013-2017 EPAM Systems
This file is part of Wilma.
Wilma is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Wilma is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Wilma. If not, see <http://www.gnu.org/licenses/>.
===========================================================================*/
import static com.google.common.base.Strings.isNullOrEmpty;
import static org.apache.commons.collections.MapUtils.isNotEmpty;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Map;
import java.util.Map.Entry;
/**
* Helper class for URL building.
*
* @author Tamas_Pinter
*
*/
public final class UrlBuilderUtils {
public static final String COLON = ":";
public static final String AMPERSAND = "&";
public static final String EQUAL = "=";
public static final String QUESTION_MARK = "?";
public static final String SEPARATOR = "/";
public static final String PROTOCOL_SEPARATOR = "://";
public static final String SCHEME_HTTP = "http";
public static final String SCHEME_HTTPS = "https";
public static final String ENCODE = "UTF-8";
private UrlBuilderUtils() {
// not intended to be used as it's just a utility class
}
/**
* Build absolute url with multiple parameters.
*
* @param isSecure secure or not
* @param host the server host
* @param port the port
* @param uri base uri
* @param params parameters
* @return url
*/
//CHECKSTYLE.OFF
public static String buildAbsoluteURL(boolean isSecure, String host, String port, String uri, Map<String, String> params) {
//CHECKSTYLE.ON
StringBuilder result = new StringBuilder();
if (isSecure) {
result.append(SCHEME_HTTPS);
} else {
result.append(SCHEME_HTTP);
}
result.append(PROTOCOL_SEPARATOR).append(host);
if (!isNullOrEmpty(port)) {
result.append(COLON).append(port);
}
if (!isNullOrEmpty(uri)) {
if (!uri.startsWith(SEPARATOR)) {
result.append(SEPARATOR);
}
result.append(uri);
appendParams(result, params);
}
return result.toString();
}
private static void appendParam(StringBuilder url, String separator, String key, String value) {
url.append(separator);
url.append(key);
url.append(EQUAL);
if (!isNullOrEmpty(value)) {
try {
url.append(URLEncoder.encode(value, ENCODE));
} catch (UnsupportedEncodingException e) {
throw new WilmaServiceException("Unable to encode value: " + value, e);
}
}
}
private static void appendParams(StringBuilder url, Map<String, String> params) {
if (isNotEmpty(params)) {
String separator = QUESTION_MARK;
for (Entry<String, String> entry : params.entrySet()) {
appendParam(url, separator, entry.getKey(), entry.getValue());
separator = AMPERSAND;
}
}
}
}