org.opendaylight.yangtools.util.PropertyUtils Maven / Gradle / Ivy
/*
* Copyright (c) 2014 Brocade Communications Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.yangtools.util;
import com.google.common.base.Strings;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Provides utilities for system properties.
*
* @author Thomas Pantelis
*/
public final class PropertyUtils {
private static final Logger LOG = LoggerFactory.getLogger(PropertyUtils.class);
private PropertyUtils() {
}
/**
* Obtains the given property from the System properties and returns as an int. If the property
* is not found the specified default value is returned. If the property value can't be parsed
* to an int, a warning is logged and the default value is returned.
*
* @param propName the name of the property to get
* @param defaultValue the default value
* @return the System property as an int or the defaultValue if not found.
*/
public static int getIntSystemProperty(String propName, int defaultValue) {
int propValue = defaultValue;
String strValue = System.getProperty(propName);
if (!Strings.isNullOrEmpty(strValue) && !strValue.trim().isEmpty()) {
try {
propValue = Integer.parseInt(strValue);
} catch (NumberFormatException e) {
LOG.warn("Cannot parse value {} for system property {}, using default {}",
strValue, propName, defaultValue);
}
}
return propValue;
}
}