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package org.openecomp.config.api;
import java.util.Arrays;
import java.util.List;
/**
* The type Dynamic configuration.
*
* @param <T> the type parameter
*/
public class DynamicConfiguration<T> {
/**
* The Tenant.
*/
String tenant;
/**
* The Namespace.
*/
String namespace;
/**
* The Key.
*/
String key;
/**
* The Configuration.
*/
Configuration configuration;
/**
* The Clazz.
*/
Class clazz;
/**
* The Default value.
*/
T defaultValue;
/**
* Gets dynamic configuration.
*
* @param <T> the type parameter
* @param tenant the tenant
* @param namespace the namespace
* @param key the key
* @param clazz the clazz
* @param defaultValue the default value
* @param configuration the configuration
* @return the dynamic configuration
*/
public static <T> DynamicConfiguration<T> getDynamicConfiguration(String tenant, String namespace,
String key, Class<T> clazz,
T defaultValue,
Configuration configuration) {
DynamicConfiguration<T> dynamicConfiguration = new DynamicConfiguration<>();
dynamicConfiguration.tenant = tenant;
dynamicConfiguration.namespace = namespace;
dynamicConfiguration.key = key;
dynamicConfiguration.clazz = clazz;
dynamicConfiguration.defaultValue = defaultValue;
dynamicConfiguration.configuration = configuration;
return dynamicConfiguration;
}
/**
* Gets dyn configuration.
*
* @param <K> the type parameter
* @param tenant the tenant
* @param namespace the namespace
* @param key the key
* @param clazz the clazz
* @param defaultValue the default value
* @param configuration the configuration
* @return the dyn configuration
*/
public static <K> DynamicConfiguration<List<K>> getDynConfiguration(String tenant,
String namespace, String key,
Class<K> clazz,
K defaultValue,
Configuration configuration) {
if (clazz.isPrimitive()) {
throw new RuntimeException(
"Only Wrapper classes like Integer, Long, Double, "
+ "Boolean etc including String are supported.");
}
DynamicConfiguration<List<K>> dynamicConfiguration = new DynamicConfiguration<>();
dynamicConfiguration.tenant = tenant;
dynamicConfiguration.namespace = namespace;
dynamicConfiguration.key = key;
dynamicConfiguration.clazz = getArrayClass(clazz);
dynamicConfiguration.defaultValue = Arrays.asList(defaultValue);
dynamicConfiguration.configuration = configuration;
return dynamicConfiguration;
}
/**
* Gets array class.
*
* @param clazz the clazz
* @return the array class
*/
public static Class getArrayClass(Class clazz) {
switch (clazz.getName()) {
case "java.lang.Byte":
return Byte[].class;
case "java.lang.Short":
return Short[].class;
case "java.lang.Integer":
return Integer[].class;
case "java.lang.Long":
return Long[].class;
case "java.lang.Float":
return Float[].class;
case "java.lang.Double":
return Double[].class;
case "java.lang.Boolean":
return Boolean[].class;
case "java.lang.Character":
return Character[].class;
case "java.lang.String":
return String[].class;
default:
}
return null;
}
/**
* Get t.
*
* @return the t
*/
public T get() {
Object toReturn = configuration
.get(tenant, namespace, key, clazz, Hint.LATEST_LOOKUP, Hint.EXTERNAL_LOOKUP,
Hint.NODE_SPECIFIC);
if (toReturn != null && toReturn.getClass().isArray()) {
toReturn = Arrays.asList((Object[]) toReturn);
}
return toReturn == null ? defaultValue : (T) toReturn;
}
}
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