/*
    * 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.chemistry.opencmis.client.runtime;
  
  import java.util.Map;
  
  import org.apache.chemistry.opencmis.client.bindings.CmisBindingFactory;
  import org.apache.chemistry.opencmis.client.bindings.cache.TypeDefinitionCache;
  import org.apache.chemistry.opencmis.commons.SessionParameter;
  import org.apache.chemistry.opencmis.commons.enums.BindingType;
  import org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException;
  import org.apache.chemistry.opencmis.commons.spi.AuthenticationProvider;
  import org.apache.chemistry.opencmis.commons.spi.CmisBinding;
  
  /**
   * Helper methods for binding handling.
   */
  public final class CmisBindingHelper {
  
      private CmisBindingHelper() {
      }
  
      /**
       * Creates a {@link CmisBinding} object.
       */
      public static CmisBinding createBinding(Map<String, String> parameters,
              AuthenticationProvider authenticationProvider, TypeDefinitionCache typeDefCache) {
          if (parameters == null || parameters.isEmpty()) {
              throw new CmisRuntimeException("Session parameter not set!");
          }
  
          if (!parameters.containsKey(SessionParameter.BINDING_TYPE)) {
              parameters.put(SessionParameter.BINDING_TYPE, BindingType.CUSTOM.value());
          }
  
          BindingType bt = null;
          try {
              bt = BindingType.fromValue(parameters.get(SessionParameter.BINDING_TYPE));
          } catch (IllegalArgumentException iae) {
              throw new CmisRuntimeException("Invalid binding type!");
          }
  
          switch (bt) {
          case ATOMPUB:
              return createAtomPubBinding(parameters, authenticationProvider, typeDefCache);
          case WEBSERVICES:
              return createWebServiceBinding(parameters, authenticationProvider, typeDefCache);
          case BROWSER:
              return createCmisBrowserBinding(parameters, authenticationProvider, typeDefCache);
          case LOCAL:
              return createLocalBinding(parameters, typeDefCache);
          case CUSTOM:
              return createCustomBinding(parameters, authenticationProvider, typeDefCache);
          default:
              throw new CmisRuntimeException("Invalid binding type!");
          }
      }
  
      /**
       * Creates a binding with custom parameters.
       */
      private static CmisBinding createCustomBinding(Map<String, String> parameters,
              AuthenticationProvider authenticationProvider, TypeDefinitionCache typeDefCache) {
          CmisBindingFactory factory = CmisBindingFactory.newInstance();
          CmisBinding binding = factory.createCmisBinding(parameters, authenticationProvider, typeDefCache);
  
          return binding;
      }
  
      /**
       * Creates a Web Services binding.
       */
      private static CmisBinding createWebServiceBinding(Map<String, String> parameters,
              AuthenticationProvider authenticationProvider, TypeDefinitionCache typeDefCache) {
          CmisBindingFactory factory = CmisBindingFactory.newInstance();
          CmisBinding binding = factory.createCmisWebServicesBinding(parameters, authenticationProvider, typeDefCache);
  
          return binding;
      }
  
      /**
       * Creates an AtomPub binding.
       */
     private static CmisBinding createAtomPubBinding(Map<String, String> parameters,
             AuthenticationProvider authenticationProvider, TypeDefinitionCache typeDefCache) {
         CmisBindingFactory factory = CmisBindingFactory.newInstance();
         CmisBinding binding = factory.createCmisAtomPubBinding(parameters, authenticationProvider, typeDefCache);
 
         return binding;
     }
 
     /**
      * Creates an Browser binding.
      */
     private static CmisBinding createCmisBrowserBinding(Map<String, String> parameters,
             AuthenticationProvider authenticationProvider, TypeDefinitionCache typeDefCache) {
         CmisBindingFactory factory = CmisBindingFactory.newInstance();
         CmisBinding binding = factory.createCmisBrowserBinding(parameters, authenticationProvider, typeDefCache);
 
         return binding;
     }
 
     /**
      * Creates a local binding.
      */
     private static CmisBinding createLocalBinding(Map<String, String> parameters, TypeDefinitionCache typeDefCache) {
         CmisBindingFactory factory = CmisBindingFactory.newInstance();
         CmisBinding binding = factory.createCmisLocalBinding(parameters, typeDefCache);
 
         return binding;
     }
 }