/*
* 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.logfeeder.output;
import org.apache.ambari.logfeeder.common.LogFeederConstants;
import org.apache.ambari.logfeeder.util.LogFeederUtil;
import org.apache.ambari.logfeeder.util.PlaceholderUtil;
import java.util.HashMap;
/**
* A utility class that resolves variables like hostname, IP address and cluster name in S3 paths.
*/
public class S3LogPathResolver {
/**
* Construct a full S3 path by resolving variables in the path name including hostname, IP address
* and cluster name
* @param baseKeyPrefix The prefix which can contain the variables.
* @param keySuffix The suffix appended to the prefix after variable expansion
* @param cluster The name of the cluster
* @return full S3 path.
*/
public String getResolvedPath(String baseKeyPrefix, String keySuffix, String cluster) {
HashMap<String, String> contextParam = buildContextParam(cluster);
String resolvedKeyPrefix = PlaceholderUtil.replaceVariables(baseKeyPrefix, contextParam);
return resolvedKeyPrefix + LogFeederConstants.S3_PATH_SEPARATOR + keySuffix;
}
private HashMap<String, String> buildContextParam(String cluster) {
HashMap<String, String> contextParam = new HashMap<>();
contextParam.put("host", LogFeederUtil.hostName);
contextParam.put("ip", LogFeederUtil.ipAddress);
contextParam.put("cluster", cluster);
return contextParam;
}
}