/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.ambari.view.pig.templeton.client;
import org.apache.ambari.view.ViewContext;
import org.apache.ambari.view.pig.utils.MisconfigurationFormattedException;
import org.apache.ambari.view.utils.ambari.AmbariApi;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TempletonApiFactory {
private final static Logger LOG =
LoggerFactory.getLogger(TempletonApiFactory.class);
private ViewContext context;
private AmbariApi ambariApi;
public TempletonApiFactory(ViewContext context) {
this.context = context;
this.ambariApi = new AmbariApi(context);
}
public TempletonApi connectToTempletonApi() {
String webhcatUrl = ambariApi.getServices().getWebHCatURL();
return new TempletonApi(webhcatUrl, getTempletonUser(context), context);
}
/**
* Extension point to use different usernames in templeton
* requests instead of logged in user
* @return username in templeton
*/
private String getTempletonUser(ViewContext context) {
String username = context.getProperties().get("webhcat.username");
if (username == null || username.compareTo("null") == 0 || username.compareTo("") == 0) {
username = context.getUsername();
}
return username;
}
}