| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package org.apache.activemq.jaas; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.Set; |
| import java.util.regex.Pattern; |
| import java.util.regex.PatternSyntaxException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ReloadableProperties { |
| private static final Logger LOG = LoggerFactory.getLogger(ReloadableProperties.class); |
| |
| private Properties props = new Properties(); |
| private Map<String, String> invertedProps; |
| private Map<String, Set<String>> invertedValueProps; |
| private Map<String, Pattern> regexpProps; |
| private long reloadTime = -1; |
| private final PropertiesLoader.FileNameKey key; |
| |
| public ReloadableProperties(PropertiesLoader.FileNameKey key) { |
| this.key = key; |
| } |
| |
| public synchronized Properties getProps() { |
| return props; |
| } |
| |
| public synchronized ReloadableProperties obtained() { |
| if (reloadTime < 0 || (key.isReload() && hasModificationAfter(reloadTime))) { |
| props = new Properties(); |
| try { |
| load(key.file(), props); |
| invertedProps = null; |
| invertedValueProps = null; |
| regexpProps = null; |
| if (key.isDebug()) { |
| LOG.debug("Load of: " + key); |
| } |
| } catch (IOException e) { |
| LOG.error("Failed to load: " + key + ", reason:" + e.getLocalizedMessage()); |
| if (key.isDebug()) { |
| LOG.debug("Load of: " + key + ", failure exception" + e); |
| } |
| } |
| reloadTime = System.currentTimeMillis(); |
| } |
| return this; |
| } |
| |
| public synchronized Map<String, String> invertedPropertiesMap() { |
| if (invertedProps == null) { |
| invertedProps = new HashMap<>(props.size()); |
| for (Map.Entry<Object, Object> val : props.entrySet()) { |
| String str = (String) val.getValue(); |
| if (!looksLikeRegexp(str)) { |
| invertedProps.put(str, (String) val.getKey()); |
| } |
| } |
| } |
| return invertedProps; |
| } |
| |
| public synchronized Map<String, Set<String>> invertedPropertiesValuesMap() { |
| if (invertedValueProps == null) { |
| invertedValueProps = new HashMap<>(props.size()); |
| for (Map.Entry<Object, Object> val : props.entrySet()) { |
| String[] userList = ((String)val.getValue()).split(","); |
| for (String user : userList) { |
| Set<String> set = invertedValueProps.get(user); |
| if (set == null) { |
| set = new HashSet<>(); |
| invertedValueProps.put(user, set); |
| } |
| set.add((String)val.getKey()); |
| } |
| } |
| } |
| return invertedValueProps; |
| } |
| |
| public synchronized Map<String, Pattern> regexpPropertiesMap() { |
| if (regexpProps == null) { |
| regexpProps = new HashMap<>(props.size()); |
| for (Map.Entry<Object, Object> val : props.entrySet()) { |
| String str = (String) val.getValue(); |
| if (looksLikeRegexp(str)) { |
| try { |
| Pattern p = Pattern.compile(str.substring(1, str.length() - 1)); |
| regexpProps.put((String) val.getKey(), p); |
| } catch (PatternSyntaxException e) { |
| LOG.warn("Ignoring invalid regexp: " + str); |
| } |
| } |
| } |
| } |
| return regexpProps; |
| } |
| |
| private void load(final File source, Properties props) throws IOException { |
| FileInputStream in = new FileInputStream(source); |
| try { |
| props.load(in); |
| if (key.isDecrypt()) { |
| try { |
| EncryptionSupport.decrypt(this.props, key.getAlgorithm()); |
| } catch (NoClassDefFoundError e) { |
| // this Happens whe jasypt is not on the classpath.. |
| key.setDecrypt(false); |
| LOG.info("jasypt is not on the classpath: password decryption disabled."); |
| } |
| } |
| |
| } finally { |
| in.close(); |
| } |
| } |
| |
| private boolean hasModificationAfter(long reloadTime) { |
| return key.file.lastModified() > reloadTime; |
| } |
| |
| private boolean looksLikeRegexp(String str) { |
| int len = str.length(); |
| return len > 2 && str.charAt(0) == '/' && str.charAt(len - 1) == '/'; |
| } |
| |
| } |