org.springframework.boot.devtools.restart.server.DefaultSourceDirectoryUrlFilter Maven / Gradle / Ivy
/*
* Copyright 2012-2020 the original author or authors.
*
* 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
*
* https://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 org.springframework.boot.devtools.restart.server;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.springframework.util.StringUtils;
/**
* Default implementation of {@link SourceDirectoryUrlFilter} that attempts to match URLs
* using common naming conventions.
*
* @author Phillip Webb
* @since 2.3.0
*/
public class DefaultSourceDirectoryUrlFilter implements SourceDirectoryUrlFilter {
private static final String[] COMMON_ENDINGS = { "/target/classes", "/bin" };
private static final Pattern URL_MODULE_PATTERN = Pattern.compile(".*\\/(.+)\\.jar");
private static final Pattern VERSION_PATTERN = Pattern.compile("^-\\d+(?:\\.\\d+)*(?:[.-].+)?$");
@Override
public boolean isMatch(String sourceDirectory, URL url) {
String jarName = getJarName(url);
if (!StringUtils.hasLength(jarName)) {
return false;
}
return isMatch(sourceDirectory, jarName);
}
private String getJarName(URL url) {
Matcher matcher = URL_MODULE_PATTERN.matcher(url.toString());
if (matcher.find()) {
return matcher.group(1);
}
return null;
}
private boolean isMatch(String sourceDirectory, String jarName) {
sourceDirectory = stripTrailingSlash(sourceDirectory);
sourceDirectory = stripCommonEnds(sourceDirectory);
String[] directories = StringUtils.delimitedListToStringArray(sourceDirectory, "/");
for (int i = directories.length - 1; i >= 0; i--) {
if (isDirectoryMatch(directories[i], jarName)) {
return true;
}
}
return false;
}
private boolean isDirectoryMatch(String directory, String jarName) {
if (!jarName.startsWith(directory)) {
return false;
}
String version = jarName.substring(directory.length());
return version.isEmpty() || VERSION_PATTERN.matcher(version).matches();
}
private String stripTrailingSlash(String string) {
if (string.endsWith("/")) {
return string.substring(0, string.length() - 1);
}
return string;
}
private String stripCommonEnds(String string) {
for (String ending : COMMON_ENDINGS) {
if (string.endsWith(ending)) {
return string.substring(0, string.length() - ending.length());
}
}
return string;
}
}