package com.thinkbiganalytics.feedmgr.nifi;
/*-
* #%L
* thinkbig-feed-manager-controller
* %%
* Copyright (C) 2017 ThinkBig Analytics
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.core.env.AbstractEnvironment;
import org.springframework.core.env.Environment;
import org.springframework.core.env.MapPropertySource;
import org.springframework.core.env.PropertySource;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.NavigableMap;
import java.util.TreeMap;
/**
* Helper class to get Environment Properties
* reference for RefreshScope: http://cloud.spring.io/spring-cloud-static/docs/1.0.x/spring-cloud.html#_refresh_scope
*/
@RefreshScope
public class SpringEnvironmentProperties {
private static final Logger log = LoggerFactory.getLogger(SpringEnvironmentProperties.class);
private Map<String, Object> properties = new HashMap<>();
private Map<String, Map<String, Object>> propertiesStartingWith = new HashMap<>();
@Autowired
private Environment env;
public SpringEnvironmentProperties() {
}
/**
* Get All Properties that start with a prefix
*/
public Map<String, Object> getPropertiesStartingWith(String key) {
if (propertiesStartingWith.containsKey(key)) {
return propertiesStartingWith.get(key);
} else {
Map<String, Object> props = getAllProperties();
if (props != null) {
NavigableMap m = new TreeMap(props);
Map<String, Object> properties = m.subMap(key, key + Character.MAX_VALUE);
Map<String, Object> decryptedProperties = new HashMap<>();
if (properties != null && !properties.isEmpty()) {
properties.keySet().stream().forEach(k -> {
decryptedProperties.put(k, env.getProperty(k));
}
);
}
propertiesStartingWith.put(key, decryptedProperties);
return properties;
}
return null;
}
}
public Object getPropertyValue(String key) {
return getAllProperties().get(key);
}
public String getPropertyValueAsString(String key) {
Object obj = getPropertyValue(key);
if (obj != null) {
return obj.toString();
}
return null;
}
public void reset() {
this.propertiesStartingWith.clear();
this.properties.clear();
}
/**
* get All properties
*/
public Map<String, Object> getAllProperties() {
if (properties == null || properties.isEmpty()) {
Map<String, Object> map = new HashMap();
for (Iterator it = ((AbstractEnvironment) env).getPropertySources().iterator(); it.hasNext(); ) {
PropertySource propertySource = (PropertySource) it.next();
if (propertySource instanceof MapPropertySource) {
map.putAll(((MapPropertySource) propertySource).getSource());
}
}
//decrypt
Map<String, Object> decryptedMap = new HashMap();
map.keySet().forEach(k -> {
decryptedMap.put(k, env.getProperty(k));
});
properties = decryptedMap;
}
return properties;
}
}