org.teamapps.ux.session.navigation.RoutingUtil Maven / Gradle / Ivy
/*-
* ========================LICENSE_START=================================
* TeamApps
* ---
* Copyright (C) 2014 - 2023 TeamApps.org
* ---
* 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.
* =========================LICENSE_END==================================
*/
package org.teamapps.ux.session.navigation;
import org.apache.commons.lang3.StringUtils;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.LinkedHashMap;
import java.util.Map;
public class RoutingUtil {
public static Map parseQueryParams(String query) {
if (StringUtils.isBlank(query)) {
return Map.of();
}
if (query.startsWith("?")) {
query = query.substring(1);
}
if (StringUtils.isBlank(query)) {
return Map.of();
}
Map queryParams = new LinkedHashMap<>();
String[] assignments = query.split("&");
for (String assignment : assignments) {
int equalsSignIndex = assignment.indexOf("=");
queryParams.put(
URLDecoder.decode(assignment.substring(0, equalsSignIndex), StandardCharsets.UTF_8),
URLDecoder.decode(assignment.substring(equalsSignIndex + 1), StandardCharsets.UTF_8)
);
}
return queryParams;
}
public static String normalizePath(String prefix) {
if (isEmptyPath(prefix)) {
return "/";
}
prefix = withSingleLeadingSlash(prefix);
while (prefix.length() > 1 && prefix.endsWith("/")) {
prefix = prefix.substring(0, prefix.length() - 1);
}
return prefix;
}
public static boolean isEmptyPath(String prefix) {
return StringUtils.isBlank(prefix) || prefix.equals("/");
}
public static String withSingleLeadingSlash(String path) {
if (StringUtils.isBlank(path)) {
return "/";
}
while (path.startsWith("//")) {
path = path.substring(1);
}
if (!path.startsWith("/")) {
path = "/" + path;
}
return path;
}
public static String concatenatePaths(String prefix, String suffix) {
prefix = normalizePath(prefix);
suffix = withSingleLeadingSlash(suffix);
return normalizePath(prefix + suffix);
}
public static String removePrefix(String path, String prefix) {
path = normalizePath(path);
prefix = normalizePath(prefix);
if (prefix.equals("/")) {
return path;
} else if (path.startsWith(prefix)) {
return normalizePath(path.substring(prefix.length()));
} else {
throw new IllegalArgumentException("Cannot remove prefix " + prefix + " from path " + path);
}
}
}