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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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
*
* 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.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.aai.util;
import java.io.*;
import java.net.InetAddress;
import java.util.*;
public class DbTestConfig {
public static final String AUDIT_FILESEP = (System.getProperty("file.separator") == null) ? "/" : System.getProperty("file.separator");
public static final String AUDIT_HOME = (System.getProperty("audit.home") == null) ? AUDIT_FILESEP + "opt" + AUDIT_FILESEP + "audit" : System.getProperty("audit.home");
public static final String AuditPropFilename = "c:\\tmp\\auditConfig.prop";
public static final String AUDIT_CONFIG_CHECKINGTIME = "audit.config.checktime";
public static final String AUDIT_NODENAME = "localhost";
public static final String AUDIT_DEBUG = "audit.config.debug";
private static Properties serverProps;
private static boolean propsInitialized = false;
private static boolean timerSet = false;
private static Timer timer = null;
private static String propFile = null;
/**
* Inits the.
*
* @param propertyFile the property file
*/
public synchronized static void init(String propertyFile) {
propFile = propertyFile;
init();
}
/**
* Inits the.
*/
public synchronized static void init() {
System.out.println("Initializing Config");
DbTestConfig.getConfigFile();
DbTestConfig.reloadConfig();
if ( propFile == null)
propFile = AuditPropFilename;
TimerTask task = null;
task = new DbTestFileWatcher ( new File(propFile)) {
protected void onChange( File file ) {
// here we implement the onChange
DbTestConfig.reloadConfig();
}
};
if (!timerSet) {
timerSet = true;
// repeat the check every second
timer = new Timer();
String fwi = DbTestConfig.get(AUDIT_CONFIG_CHECKINGTIME);
timer.schedule( task , new Date(), Integer.parseInt(fwi) );
System.out.println("Config Watcher Interval=" + fwi);
System.out.println("File" + propFile+" Loaded!");
}
}
/**
* Cleanup.
*/
public static void cleanup() {
timer.cancel();
}
/**
* Gets the config file.
*
* @return the config file
*/
public static String getConfigFile() {
return propFile;
}
/**
* Reload config.
*/
public synchronized static void reloadConfig() {
String propFileName = propFile;
Properties newServerProps = null;
System.out.println("Reloading config from "+propFileName);
try {
InputStream is = new FileInputStream(propFileName);
newServerProps = new Properties();
newServerProps.load(is);
propsInitialized = true;
serverProps = newServerProps;
if (get(AUDIT_DEBUG).equals("on")) {
serverProps.list(System.out);
}
newServerProps = null;
} catch (FileNotFoundException fnfe) {
System.out.println("AuditConfig: " + propFileName + ". FileNotFoundException: "+fnfe.getMessage());
} catch (IOException e) {
System.out.println("AuditConfig: " + propFileName + ". IOException: "+e.getMessage());
}
}
/**
* Gets the.
*
* @param key the key
* @param defaultValue the default value
* @return the string
*/
public static String get(String key, String defaultValue) {
String result = defaultValue;
try {
result = get (key);
}
catch ( Exception a ) {
}
return result;
}
/**
* Gets the.
*
* @param key the key
* @return the string
*/
public static String get(String key) {
String response = null;
if (key.equals(AUDIT_NODENAME)) {
// Get this from InetAddress rather than the properties file
String nodeName = getNodeName();
if (nodeName != null) {
return nodeName;
}
// else get from property file
}
if (!propsInitialized || (serverProps == null)) {
reloadConfig();
}
if (!serverProps.containsKey(key)) {
System.out.println( "Property key "+key+" cannot be found");
} else {
response = serverProps.getProperty(key);
if (response == null || response.isEmpty()) {
System.out.println("Property key "+key+" is null or empty");
}
}
return response;
}
/**
* Gets the int.
*
* @param key the key
* @return the int
*/
public static int getInt(String key) {
return Integer.valueOf(DbTestConfig.get(key));
}
/**
* Gets the server props.
*
* @return the server props
*/
public static Properties getServerProps() {
return serverProps;
}
/**
* Gets the node name.
*
* @return the node name
*/
public static String getNodeName() {
try {
InetAddress ip = InetAddress.getLocalHost();
if (ip != null) {
String hostname = ip.getHostName();
if (hostname != null) {
return hostname;
}
}
} catch (Exception e) {
return null;
}
return null;
}
/**
* Extracts a specific property key subset from the known properties.
* The prefix may be removed from the keys in the resulting dictionary,
* or it may be kept. In the latter case, exact matches on the prefix
* will also be copied into the resulting dictionary.
*
* @param prefix is the key prefix to filter the properties by.
* @param keepPrefix if true, the key prefix is kept in the resulting
* dictionary. As side-effect, a key that matches the prefix exactly
* will also be copied. If false, the resulting dictionary's keys are
* shortened by the prefix. An exact prefix match will not be copied,
* as it would result in an empty string key.
* @return a property dictionary matching the filter key. May be
* an empty dictionary, if no prefix matches were found.
*
* @see #getProperty( String ) is used to assemble matches
*/
public static Properties matchingSubset(String prefix, boolean keepPrefix) {
Properties result = new Properties();
// sanity check
if (prefix == null || prefix.length() == 0) {
return result;
}
String prefixMatch; // match prefix strings with this
String prefixSelf; // match self with this
if (prefix.charAt(prefix.length() - 1) != '.') {
// prefix does not end in a dot
prefixSelf = prefix;
prefixMatch = prefix + '.';
} else {
// prefix does end in one dot, remove for exact matches
prefixSelf = prefix.substring(0, prefix.length() - 1);
prefixMatch = prefix;
}
// POSTCONDITION: prefixMatch and prefixSelf are initialized!
// now add all matches into the resulting properties.
// Remark 1: #propertyNames() will contain the System properties!
// Remark 2: We need to give priority to System properties. This is done
// automatically by calling this class's getProperty method.
String key;
for (Enumeration e = serverProps.keys(); e.hasMoreElements(); ) {
key = (String) e.nextElement();
if (keepPrefix) {
// keep full prefix in result, also copy direct matches
if (key.startsWith(prefixMatch) || key.equals(prefixSelf)) {
result.setProperty(key, serverProps.getProperty(key));
}
} else {
// remove full prefix in result, dont copy direct matches
if (key.startsWith(prefixMatch)) {
result.setProperty(key.substring(prefixMatch.length()), serverProps.getProperty(key));
}
}
}
// done
return result;
}
/**
* The main method.
*
* @param args the arguments
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
DbTestConfig.init( );
}
}
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