org.springframework.boot.devtools.settings.DevToolsSettings Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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.settings;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
import org.apache.commons.logging.Log;
import org.springframework.boot.devtools.logger.DevToolsLogFactory;
import org.springframework.core.io.UrlResource;
import org.springframework.core.io.support.PropertiesLoaderUtils;
/**
* DevTools settings loaded from {@literal /META-INF/spring-devtools.properties} files.
*
* @author Phillip Webb
* @since 1.3.0
*/
public class DevToolsSettings {
/**
* The location to look for settings properties. Can be present in multiple JAR files.
*/
public static final String SETTINGS_RESOURCE_LOCATION = "META-INF/spring-devtools.properties";
private static final Log logger = DevToolsLogFactory.getLog(DevToolsSettings.class);
private static DevToolsSettings settings;
private final List restartIncludePatterns = new ArrayList<>();
private final List restartExcludePatterns = new ArrayList<>();
DevToolsSettings() {
}
void add(Map properties) {
Map includes = getPatterns(properties, "restart.include.");
this.restartIncludePatterns.addAll(includes.values());
Map excludes = getPatterns(properties, "restart.exclude.");
this.restartExcludePatterns.addAll(excludes.values());
}
private Map getPatterns(Map properties, String prefix) {
Map patterns = new LinkedHashMap<>();
properties.forEach((key, value) -> {
String name = String.valueOf(key);
if (name.startsWith(prefix)) {
Pattern pattern = Pattern.compile((String) value);
patterns.put(name, pattern);
}
});
return patterns;
}
public boolean isRestartInclude(URL url) {
return isMatch(url.toString(), this.restartIncludePatterns);
}
public boolean isRestartExclude(URL url) {
return isMatch(url.toString(), this.restartExcludePatterns);
}
private boolean isMatch(String url, List patterns) {
for (Pattern pattern : patterns) {
if (pattern.matcher(url).find()) {
return true;
}
}
return false;
}
public static DevToolsSettings get() {
if (settings == null) {
settings = load();
}
return settings;
}
static DevToolsSettings load() {
return load(SETTINGS_RESOURCE_LOCATION);
}
static DevToolsSettings load(String location) {
try {
DevToolsSettings settings = new DevToolsSettings();
Enumeration urls = Thread.currentThread().getContextClassLoader()
.getResources(location);
while (urls.hasMoreElements()) {
settings.add(PropertiesLoaderUtils
.loadProperties(new UrlResource(urls.nextElement())));
}
if (logger.isDebugEnabled()) {
logger.debug("Included patterns for restart : "
+ settings.restartIncludePatterns);
logger.debug("Excluded patterns for restart : "
+ settings.restartExcludePatterns);
}
return settings;
}
catch (Exception ex) {
throw new IllegalStateException("Unable to load devtools settings from "
+ "location [" + location + "]", ex);
}
}
}