/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
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* The contents of this file are subject to the Common Public
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* except in compliance with the License. You may obtain a copy of
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*
* Software distributed under the License is distributed on an "AS
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* Copyright (C) 2006 Tim Azzopardi <tim@tigerfive.com>
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package org.jruby.util;
import org.jcodings.Encoding;
import org.jruby.Ruby;
import org.jruby.ext.posix.util.Platform;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import org.jruby.RubyString;
public class OSEnvironment {
/**
* Returns the environment as a hash of Ruby strings.
*
* @param runtime
*/
public Map getEnvironmentVariableMap(Ruby runtime) {
Map envs = null;
if (runtime.getInstanceConfig().getEnvironment() != null) {
return getAsMapOfRubyStrings(runtime, runtime.getInstanceConfig().getEnvironment().entrySet());
}
// fall back on empty env when security disallows environment var access (like in an applet)
if (Ruby.isSecurityRestricted()) {
envs = new HashMap();
} else {
Map variables = System.getenv();
envs = getAsMapOfRubyStrings(runtime, variables.entrySet());
}
return envs;
}
/**
* Returns java system properties as a Map<RubyString,RubyString>.
* @param runtime
* @return the java system properties as a Map<RubyString,RubyString>.
*/
public Map getSystemPropertiesMap(Ruby runtime) {
if (Ruby.isSecurityRestricted()) {
return new HashMap();
} else {
return getAsMapOfRubyStrings(runtime, ((Properties)System.getProperties().clone()).entrySet());
}
}
private static Map getAsMapOfRubyStrings(Ruby runtime, Set<Map.Entry<Object, Object>> entrySet) {
Map envs = new HashMap();
Encoding encoding = runtime.getEncodingService().getLocaleEncoding();
// On Windows, entrySet doesn't have corresponding keys for these
if (Platform.IS_WINDOWS) {
addRubyKeyValuePair(runtime, envs, "HOME", System.getProperty("user.home"), encoding);
addRubyKeyValuePair(runtime, envs, "USER", System.getProperty("user.name"), encoding);
}
for (Map.Entry<Object, Object> entry : entrySet) {
String value = (String)entry.getValue();
String key = (String)entry.getKey();
addRubyKeyValuePair(runtime, envs, key, value, encoding);
}
return envs;
}
private static void addRubyKeyValuePair(Ruby runtime, Map map, String key, String value, Encoding encoding) {
ByteList keyBytes = new ByteList(key.getBytes(), encoding);
ByteList valueBytes = new ByteList(value.getBytes(), encoding);
RubyString keyString = runtime.newString(keyBytes);
RubyString valueString = runtime.newString(valueBytes);
keyString.setFrozen(true);
valueString.setFrozen(true);
map.put(keyString, valueString);
}
}