content: /*
  * 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.commons.hdfs;
  
  import com.google.common.base.Optional;
  import com.google.common.base.Strings;
  import org.apache.ambari.view.ViewContext;
  import org.apache.ambari.view.utils.hdfs.ConfigurationBuilder;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.util.HashMap;
  import java.util.Map;
  
  public class ViewPropertyHelper {
    private static final Logger LOG = LoggerFactory.getLogger(ConfigurationBuilder.class);
  
    public static Optional<Map<String, String>> getViewConfigs(ViewContext context, String viewConfigPropertyName) {
      Map<String, String> viewConfigs = new HashMap<>();
      String keyValues = context.getProperties().get(viewConfigPropertyName);
      LOG.debug("{} : {}", viewConfigPropertyName, keyValues);
      if (Strings.isNullOrEmpty(keyValues)) {
        LOG.info("No values found in {} property.", viewConfigPropertyName);
        return Optional.absent();
      }
  
      for (String entry : keyValues.split(";")) {
        String[] kv = entry.split("=");
        if (kv.length != 2) {
          LOG.error("Ignoring entry {}, because it is not formatted like key=value");
          continue;
        }
  
        viewConfigs.put(kv[0], kv[1]);
      }
  
      return Optional.of(viewConfigs);
    }
  }
  