org.springframework.boot.devtools.restart.server.DefaultSourceFolderUrlFilter Maven / Gradle / Ivy
/*
* Copyright 2012-2017 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.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.springframework.util.StringUtils;
/**
* Default implementation of {@link SourceFolderUrlFilter} that attempts to match URLs
* using common naming conventions.
*
* @author Phillip Webb
* @since 1.3.0
*/
public class DefaultSourceFolderUrlFilter implements SourceFolderUrlFilter {
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+)*(?:[.-].+)?$");
private static final Set SKIPPED_PROJECTS = new HashSet<>(Arrays.asList(
"spring-boot", "spring-boot-devtools", "spring-boot-autoconfigure",
"spring-boot-actuator", "spring-boot-starter"));
@Override
public boolean isMatch(String sourceFolder, URL url) {
String jarName = getJarName(url);
if (!StringUtils.hasLength(jarName)) {
return false;
}
return isMatch(sourceFolder, 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 sourceFolder, String jarName) {
sourceFolder = stripTrailingSlash(sourceFolder);
sourceFolder = stripCommonEnds(sourceFolder);
String[] folders = StringUtils.delimitedListToStringArray(sourceFolder, "/");
for (int i = folders.length - 1; i >= 0; i--) {
if (isFolderMatch(folders[i], jarName)) {
return true;
}
}
return false;
}
private boolean isFolderMatch(String folder, String jarName) {
if (!jarName.startsWith(folder) || SKIPPED_PROJECTS.contains(folder)) {
return false;
}
String version = jarName.substring(folder.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;
}
}