com.avaje.ebean.PrimaryServer Maven / Gradle / Ivy
package com.avaje.ebean;
import com.avaje.ebean.config.PropertyMap;
import java.util.Properties;
/**
* Provides singleton state for the default server.
*
* Intended for internal use as part of bootup, construction, registration of the default server.
*/
class PrimaryServer {
private static Properties globalProperties;
private static String defaultServerName;
private static boolean skip;
/**
* Set whether to skip automatically creating the primary server.
*/
static synchronized void setSkip(boolean skip) {
PrimaryServer.skip = skip;
}
/**
* Return true to skip automatically creating the primary server.
*/
static synchronized boolean isSkip() {
return skip;
}
/**
* Return the default server name.
*/
static synchronized String getDefaultServerName() {
getProperties();
return defaultServerName;
}
/**
* Return the default configuration Properties.
*/
static synchronized Properties getProperties() {
if (globalProperties == null) {
globalProperties = PropertyMap.defaultProperties();
}
if (defaultServerName == null) {
defaultServerName = determineDefaultServerName();
}
return globalProperties;
}
/**
* Determine and return the default server name checking system environment variables and then global properties.
*/
private static String determineDefaultServerName() {
String defaultServerName = System.getenv("EBEAN_DB");
if (isEmpty(defaultServerName)) {
defaultServerName = System.getProperty("datasource.default");
if (isEmpty(defaultServerName)) {
defaultServerName = System.getProperty("ebean.default.datasource");
if (isEmpty(defaultServerName)) {
defaultServerName = globalProperties.getProperty("datasource.default");
if (isEmpty(defaultServerName)) {
defaultServerName = globalProperties.getProperty("ebean.default.datasource");
}
}
}
}
return defaultServerName;
}
/**
* Return true if the string is null or empty.
*/
private static boolean isEmpty(String value) {
return value == null || value.trim().isEmpty();
}
}