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package org.apache.catalina.startup;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.net.URL;
import java.util.Enumeration;
import java.util.Properties;
/**
* Utility class to read the bootstrap Catalina configuration.
*
* @author Remy Maucherat
* @version $Revision: 1.5.6.1 $ $Date: 2008/04/17 18:37:24 $
*/
public class CatalinaProperties {
// ------------------------------------------------------- Static Variables
private static com.sun.org.apache.commons.logging.Log log=
com.sun.org.apache.commons.logging.LogFactory.getLog( CatalinaProperties.class );
private static Properties properties = null;
static {
loadProperties();
}
// --------------------------------------------------------- Public Methods
/**
* Return specified property value.
*/
public static String getProperty(String name) {
return properties.getProperty(name);
}
/**
* Return specified property value.
*/
public static String getProperty(String name, String defaultValue) {
return properties.getProperty(name, defaultValue);
}
// --------------------------------------------------------- Public Methods
/**
* Load properties.
*/
private static void loadProperties() {
InputStream is = null;
Throwable error = null;
try {
String configUrl = getConfigUrl();
if (configUrl != null) {
is = (new URL(configUrl)).openStream();
}
} catch (Throwable t) {
// Ignore
}
if (is == null) {
try {
File home = new File(getCatalinaHome());
File conf = new File(home, "conf");
File properties = new File(conf, "catalina.properties");
is = new FileInputStream(properties);
} catch (Throwable t) {
// Ignore
}
}
if (is == null) {
try {
is = CatalinaProperties.class.getResourceAsStream
("/org/apache/catalina/startup/catalina.properties");
} catch (Throwable t) {
// Ignore
}
}
if (is != null) {
try {
properties = new Properties();
properties.load(is);
is.close();
} catch (Throwable t) {
error = t;
}
}
if ((is == null) || (error != null)) {
// Do something
log.warn("Failed to load catalina.properties", error);
// That's fine - we have reasonable defaults.
properties = new Properties();
}
// Register the properties as system properties
Enumeration enumeration = properties.propertyNames();
while (enumeration.hasMoreElements()) {
String name = (String) enumeration.nextElement();
String value = properties.getProperty(name);
if (value != null) {
System.setProperty(name, value);
}
}
}
/**
* Get the value of the catalina.home environment variable.
*/
private static String getCatalinaHome() {
return System.getProperty("catalina.home",
System.getProperty("user.dir"));
}
/**
* Get the value of the configuration URL.
*/
private static String getConfigUrl() {
return System.getProperty("catalina.config");
}
}