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Environment.java
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Environment.java
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/*
* Copyright 2014-2016 CyberVision, Inc.
*
* 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.
*/
package org.kaaproject.kaa.server.common;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Arrays;
import java.util.List;
/**
* The Class Environment provides ability to log environment state.
*/
public class Environment {
public static final String SERVER_HOME_DIR = "server_home_dir";
private static final String DEFAULT_SERVER_HOME_DIR = ".";
private static final Logger LOG = LoggerFactory.getLogger(Environment.class);
/**
* The Constant SYSTEM_PROPERTIES.
*/
private static final List<String> SYSTEM_PROPERTIES = Arrays.asList(
"java.version", "java.vendor", "java.home",
"java.class.path", "java.library.path", "java.io.tmpdir",
"java.compiler", "os.name", "os.arch", "os.version",
"user.name", "user.home", "user.dir", SERVER_HOME_DIR);
/**
* Instantiates a new environment.
*/
private Environment() {
}
/**
* Logs environment state using {@link Logger}.
*/
public static void logState() {
LOG.info("Kaa version: {}, commit: {}", Version.PROJECT_VERSION, Version.COMMIT_HASH);
for (String property : SYSTEM_PROPERTIES) {
LOG.info("{} : {}", property, System.getProperty(property, "N/A"));
}
}
;
public static String getServerHomeDir() {
return System.getProperty(SERVER_HOME_DIR, DEFAULT_SERVER_HOME_DIR);
}
}