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.server.state.kerberos;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.Map;
  
  import org.apache.ambari.server.AmbariException;
  
  import com.google.inject.Singleton;
  
  /**
   * KerberosDescriptorFactory is a factory class used to create KerberosDescriptor instances using
   * various sources of data.
   */
  @Singleton
  public class KerberosDescriptorFactory extends AbstractKerberosDescriptorFactory {
  
    /**
     * Given a file containing JSON-formatted text, attempts to create a KerberosDescriptor
     *
     * @param file a File pointing to the file containing JSON-formatted text
     * @return a newly created KerberosDescriptor
     * @throws java.io.FileNotFoundException            if the specified File does not point to a valid file
     * @throws java.io.IOException                      if the specified File is not a readable file
     * @throws org.apache.ambari.server.AmbariException if the specified File does not contain valid JSON data
     */
    public KerberosDescriptor createInstance(File file) throws IOException {
      try {
        return new KerberosDescriptor(parseFile(file));
      } catch (AmbariException e) {
        throw new AmbariException(String.format("An error occurred processing the JSON-formatted file: %s", file.getAbsolutePath()), e);
      }
    }
  
    /**
     * Given a String containing JSON-formatted text, attempts to create a KerberosDescriptor
     *
     * @param json a File pointing to the file containing JSON-formatted text
     * @return a newly created KerberosDescriptor
     * @throws AmbariException if an error occurs while processing the JSON-formatted String
     */
    public KerberosDescriptor createInstance(String json) throws AmbariException {
      try {
        return new KerberosDescriptor(parseJSON(json));
      } catch (AmbariException e) {
        throw new AmbariException("An error occurred processing the JSON-formatted string", e);
      }
    }
  
    /**
     * Creates a new KerberosDescriptor
     * <p/>
     * See {@link org.apache.ambari.server.state.kerberos.KerberosDescriptor} for the JSON
     * Schema that may be used to generate this map.
     *
     * @param map a Map of values use to populate the data for the new instance
     * @see org.apache.ambari.server.state.kerberos.KerberosDescriptor
     */
    public KerberosDescriptor createInstance(Map<?, ?> map) {
      return new KerberosDescriptor(map);
    }
  
  }
  