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;
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+)*(?:[.-].+)?$");
private static final Set<String> 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 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) || SKIPPED_PROJECTS.contains(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;
}
}