hu.icellmobilsoft.coffee.tool.utils.clazz.ResourceUtil Maven / Gradle / Ivy
/*-
* #%L
* Coffee
* %%
* Copyright (C) 2020 i-Cell Mobilsoft Zrt.
* %%
* 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.
* #L%
*/
package hu.icellmobilsoft.coffee.tool.utils.clazz;
/**
* Resource utils
*
* @author robert.kaplar
* @since 1.0.0
*/
public class ResourceUtil {
private static final String POSTFIX_JAR = ".jar";
private static final String POSTFIX_WAR = ".war";
private static final String PATH_SEPARATOR = "/";
/**
* Default constructor, constructs a new object.
*/
public ResourceUtil() {
super();
}
/**
* Determine which JAR or WAR file a class is from
*
* @param clazz
* class to search for
* @return JAR or WAR file location
*/
public static String getAppName(Class clazz) {
if (clazz == null || clazz.getProtectionDomain() == null || clazz.getProtectionDomain().getCodeSource() == null
|| clazz.getProtectionDomain().getCodeSource().getLocation() == null) {
return null;
}
String result = clazz.getProtectionDomain().getCodeSource().getLocation().toString();
result = truncatePostfix(result, POSTFIX_JAR);
result = truncatePostfix(result, POSTFIX_WAR);
result = truncatePrefix(result, PATH_SEPARATOR);
return result;
}
private static String truncatePostfix(String result, String postfix) {
if (result.indexOf(postfix) != -1) {
result = result.substring(0, result.indexOf(postfix));
}
return result;
}
private static String truncatePrefix(String result, String prefix) {
if (result.indexOf(prefix) != -1) {
result = result.substring(result.lastIndexOf(prefix) + 1);
}
return result;
}
}