package com.alibaba.jstorm;
import org.yaml.snakeyaml.Yaml;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
public class LoadConfig {
public static final String TOPOLOGY_TYPE = "topology.type";
private static Map LoadProperty(String prop) {
Map ret = null;
Properties properties = new Properties();
try {
InputStream stream = new FileInputStream(prop);
properties.load(stream);
ret = new HashMap<Object, Object>();
ret.putAll(properties);
} catch (FileNotFoundException e) {
System.out.println("No such file " + prop);
} catch (Exception e1) {
e1.printStackTrace();
}
return ret;
}
private static Map LoadYaml(String confPath) {
Map ret = null;
Yaml yaml = new Yaml();
try {
InputStream stream = new FileInputStream(confPath);
ret = (Map) yaml.load(stream);
if (ret == null || ret.isEmpty() == true) {
throw new RuntimeException("Failed to read config file");
}
} catch (FileNotFoundException e) {
System.out.println("No such file " + confPath);
throw new RuntimeException("No config file");
} catch (Exception e1) {
e1.printStackTrace();
throw new RuntimeException("Failed to read config file");
}
return ret;
}
public static Map LoadConf(String arg) {
Map ret = null;
if (arg.endsWith("yaml")) {
ret = LoadYaml(arg);
} else {
ret = LoadProperty(arg);
}
return ret;
}
}