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/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2014 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.process;
import org.apache.commons.io.Charsets;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.text.StrSubstitutor;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Enumeration;
import java.util.Map;
import java.util.Properties;
public final class ConfigurationUtils {
private ConfigurationUtils() {
// Utility class
}
public static Properties interpolateVariables(Properties properties, Map<String, String> variables) {
Properties result = new Properties();
Enumeration keys = properties.keys();
while (keys.hasMoreElements()) {
String key = (String) keys.nextElement();
String value = (String) properties.get(key);
String interpolatedValue = StrSubstitutor.replace(value, variables, "${env:", "}");
result.setProperty(key, interpolatedValue);
}
return result;
}
static Props loadPropsFromCommandLineArgs(String[] args) {
if (args.length != 1) {
throw new IllegalArgumentException("Only a single command-line argument is accepted " +
"(absolute path to configuration file)");
}
File propertyFile = new File(args[0]);
Properties properties = new Properties();
Reader reader = null;
try {
reader = new InputStreamReader(new FileInputStream(propertyFile), Charsets.UTF_8);
properties.load(reader);
} catch (Exception e) {
throw new IllegalStateException("Could not read properties from file: " + args[0], e);
} finally {
IOUtils.closeQuietly(reader);
FileUtils.deleteQuietly(propertyFile);
}
return new Props(properties);
}
}
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