/*
*
* Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under
* one or more contributor license agreements (see COPYRIGHT for details).
* The CA licenses this file to you under the GNU Affero General Public
* License version 3, (the "License"); you may not use this file except in
* compliance with the License. This file is part of kune.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package cc.kune.core.server.properties;
import java.text.MessageFormat;
import java.util.List;
import org.apache.commons.configuration.CompositeConfiguration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.commons.configuration.SystemConfiguration;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import cc.kune.core.server.error.ServerException;
import com.google.inject.Inject;
import com.google.inject.Singleton;
// TODO: Auto-generated Javadoc
/**
* The Class KunePropertiesDefault.
*
* @author danigb@gmail.com
* @author vjrj@ourproject.org (Vicente J. Ruiz Jurado)
*/
@Singleton
public class KunePropertiesDefault implements KuneProperties, KunePropertiesDefaultMBean {
/** The Constant LOG. */
public static final Log LOG = LogFactory.getLog(KunePropertiesDefault.class);
/** The config. */
private CompositeConfiguration config;
/** The file name. */
private final String fileName;
/**
* Instantiates a new kune properties default.
*
* @param fileName
* the file name
*/
@Inject
public KunePropertiesDefault(final String fileName) {
this.fileName = fileName;
// http://stackoverflow.com/questions/40376/handle-signals-in-the-java-virtual-machine
// Runtime.getRuntime().addShutdownHook() ??
// Gives some warning in openjdk
// http://stackoverflow.com/questions/5023520/sending-signals-to-a-running-jvm
//
// sun.misc.Signal.handle(new sun.misc.Signal("HUP"), new SignalHandler() {
// @Override
// public void handle(final sun.misc.Signal sig) {
// LOG.warn("Received SIGHUP signal. Will reload kune.properties");
// loadConfiguration();
// }
// });
loadConfiguration();
}
/**
* Check null.
*
* @param key
* the key
* @param value
* the value
*/
private void checkNull(final String key, final Object value) {
if (value == null) {
throw new ServerException(
String.format("PROPERTY '%s' not defined in file %s. Please updated this configuration file.",
key, fileName));
}
}
/*
* (non-Javadoc)
*
* @see cc.kune.core.server.properties.KuneProperties#get(java.lang.String)
*/
@Override
public String get(final String key) {
final String value = config.getString(key);
checkNull(key, value);
return value;
}
/*
* (non-Javadoc)
*
* @see cc.kune.core.server.properties.KuneProperties#get(java.lang.String,
* java.lang.String)
*/
@Override
public String get(final String key, final String defaultValue) {
final String value = config.getString(key);
return value != null ? value : defaultValue;
}
/*
* (non-Javadoc)
*
* @see
* cc.kune.core.server.properties.KuneProperties#getBoolean(java.lang.String)
*/
@Override
public boolean getBoolean(final String key) {
final Boolean value = config.getBoolean(key);
checkNull(key, value);
return value;
}
/*
* (non-Javadoc)
*
* @see
* cc.kune.core.server.properties.KuneProperties#getInteger(java.lang.String)
*/
@Override
public Integer getInteger(final String key) {
final Integer value = config.getInt(key);
checkNull(key, value);
return value;
}
/*
* (non-Javadoc)
*
* @see
* cc.kune.core.server.properties.KuneProperties#getList(java.lang.String)
*/
@Override
public List<String> getList(final String key) {
@SuppressWarnings("unchecked")
final List<String> value = config.getList(key);
checkNull(key, value);
return value;
}
/*
* (non-Javadoc)
*
* @see
* cc.kune.core.server.properties.KuneProperties#getLong(java.lang.String)
*/
@Override
public Long getLong(final String key) {
final Long value = config.getLong(key);
checkNull(key, value);
return value;
}
/*
* (non-Javadoc)
*
* @see
* cc.kune.core.server.properties.KunePropertiesDefaultMBean#getProperty(java
* .lang.String)
*/
@Override
public String getProperty(final String key) {
return this.get(key, "Value doesn't exist");
}
/*
* (non-Javadoc)
*
* @see cc.kune.core.server.properties.KuneProperties#has(java.lang.String)
*/
@Override
public boolean has(final String key) {
return config.getString(key) != null;
}
/**
* Load configuration.
*/
private void loadConfiguration() {
try {
config = new CompositeConfiguration();
config.addConfiguration(new SystemConfiguration());
config.addConfiguration(new PropertiesConfiguration(fileName));
} catch (final ConfigurationException e) {
final String msg = MessageFormat.format("Couldn't open property file {0}", fileName);
throw new ServerException(msg, e);
}
}
/*
* (non-Javadoc)
*
* @see cc.kune.core.server.properties.KunePropertiesDefaultMBean#reload()
*/
@Override
public void reload() {
/* Don't catch any exception */
LOG.info("Reloading properties");
this.loadConfiguration();
}
/*
* (non-Javadoc)
*
* @see
* cc.kune.core.server.properties.KunePropertiesDefaultMBean#setProperty(java
* .lang.String, java.lang.String)
*/
@Override
public void setProperty(final String key, final String value) {
this.config.setProperty(key, value);
}
}