/**
* 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.oozie.ambari.view;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import org.apache.ambari.view.URLStreamProvider;
import org.apache.ambari.view.ViewContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AmbariIOUtil {
private final static Logger LOGGER = LoggerFactory
.getLogger(AmbariIOUtil.class);
private ViewContext viewContext;
public AmbariIOUtil(ViewContext viewContext) {
super();
this.viewContext = viewContext;
}
public InputStream readFromUrl(String urlToRead, String method,
String body, Map<String, String> newHeaders) {
URLStreamProvider streamProvider = viewContext.getURLStreamProvider();
InputStream stream = null;
try {
if (isSecurityEnabled()) {
stream = streamProvider.readAsCurrent(urlToRead, method, body,
newHeaders);
} else {
stream = streamProvider.readFrom(urlToRead, method, body,
newHeaders);
}
} catch (IOException e) {
LOGGER.error("error talking to oozie", e);
throw new RuntimeException(e);
}
return stream;
}
private boolean isSecurityEnabled() {
String securityEnbaled = viewContext.getProperties()
.get("hadoop.security.authentication");
return !"simple".equalsIgnoreCase(securityEnbaled);
}
}