001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.activemq.jaas; 018 019import java.io.File; 020import java.io.FileInputStream; 021import java.io.IOException; 022import java.util.HashMap; 023import java.util.HashSet; 024import java.util.Map; 025import java.util.Properties; 026import java.util.Set; 027import org.slf4j.Logger; 028import org.slf4j.LoggerFactory; 029 030public class ReloadableProperties { 031 private static final Logger LOG = LoggerFactory.getLogger(ReloadableProperties.class); 032 033 private Properties props = new Properties(); 034 private Map<String, String> invertedProps; 035 private Map<String, Set<String>> invertedValueProps; 036 private long reloadTime = -1; 037 private final PropertiesLoader.FileNameKey key; 038 039 public ReloadableProperties(PropertiesLoader.FileNameKey key) { 040 this.key = key; 041 } 042 043 public synchronized Properties getProps() { 044 return props; 045 } 046 047 public synchronized ReloadableProperties obtained() { 048 if (reloadTime < 0 || (key.isReload() && hasModificationAfter(reloadTime))) { 049 props = new Properties(); 050 try { 051 load(key.file(), props); 052 invertedProps = null; 053 invertedValueProps = null; 054 if (key.isDebug()) { 055 LOG.debug("Load of: " + key); 056 } 057 } catch (IOException e) { 058 LOG.error("Failed to load: " + key + ", reason:" + e.getLocalizedMessage()); 059 if (key.isDebug()) { 060 LOG.debug("Load of: " + key + ", failure exception" + e); 061 } 062 } 063 reloadTime = System.currentTimeMillis(); 064 } 065 return this; 066 } 067 068 public synchronized Map<String, String> invertedPropertiesMap() { 069 if (invertedProps == null) { 070 invertedProps = new HashMap<>(props.size()); 071 for (Map.Entry<Object, Object> val : props.entrySet()) { 072 invertedProps.put((String) val.getValue(), (String) val.getKey()); 073 } 074 } 075 return invertedProps; 076 } 077 078 public synchronized Map<String, Set<String>> invertedPropertiesValuesMap() { 079 if (invertedValueProps == null) { 080 invertedValueProps = new HashMap<>(props.size()); 081 for (Map.Entry<Object, Object> val : props.entrySet()) { 082 String[] userList = ((String)val.getValue()).split(","); 083 for (String user : userList) { 084 Set<String> set = invertedValueProps.get(user); 085 if (set == null) { 086 set = new HashSet<>(); 087 invertedValueProps.put(user, set); 088 } 089 set.add((String)val.getKey()); 090 } 091 } 092 } 093 return invertedValueProps; 094 } 095 096 private void load(final File source, Properties props) throws IOException { 097 FileInputStream in = new FileInputStream(source); 098 try { 099 props.load(in); 100 if (key.isDecrypt()) { 101 try { 102 EncryptionSupport.decrypt(this.props); 103 } catch (NoClassDefFoundError e) { 104 // this Happens whe jasypt is not on the classpath.. 105 key.setDecrypt(false); 106 LOG.info("jasypt is not on the classpath: password decryption disabled."); 107 } 108 } 109 110 } finally { 111 in.close(); 112 } 113 } 114 115 private boolean hasModificationAfter(long reloadTime) { 116 return key.file.lastModified() > reloadTime; 117 } 118 119}