/* * 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.cassandra.locator; import java.io.InputStream; import java.util.Properties; import org.apache.cassandra.io.util.FileUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class SnitchProperties { private static final Logger logger = LoggerFactory.getLogger(SnitchProperties.class); public static final String RACKDC_PROPERTY_FILENAME = "cassandra-rackdc.properties"; private static Properties properties = new Properties(); static { InputStream stream = SnitchProperties.class.getClassLoader().getResourceAsStream(RACKDC_PROPERTY_FILENAME); try { properties.load(stream); } catch (Exception e) { // do not throw exception here, just consider this a incomplete or a empty property file. logger.warn("Unable to read " + RACKDC_PROPERTY_FILENAME); } finally { FileUtils.closeQuietly(stream); } } /** * Get a snitch property value or return null if not defined. */ public static String get(String propertyName, String defaultValue) { return properties.getProperty(propertyName, defaultValue); } }