View Javadoc

    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one
    3    * or more contributor license agreements.  See the NOTICE file
    4    * distributed with this work for additional information
    5    * regarding copyright ownership.  The ASF licenses this file
    6    * to you under the Apache License, Version 2.0 (the
    7    * "License"); you may not use this file except in compliance
    8    * with the License.  You may obtain a copy of the License at
    9    *
    10   *   http://www.apache.org/licenses/LICENSE-2.0
    11   *
    12   * Unless required by applicable law or agreed to in writing,
    13   * software distributed under the License is distributed on an
    14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    15   * KIND, either express or implied.  See the License for the
    16   * specific language governing permissions and limitations
    17   * under the License.
    18   */
    19  package org.apache.myfaces.orchestra.frameworkAdapter;
    20
    21  import org.apache.myfaces.orchestra.conversation.ConversationMessager;
    22  import org.apache.myfaces.orchestra.lib.OrchestraException;
    23  import org.apache.myfaces.orchestra.lib._ClassUtils;
    24
    25  /**
    26   * Utility methods for the internal use of Orchestra only.
    27   *
    28   * @since 1.1
    29   */
    30  public abstract class _FrameworkAdapterUtils
    31  {
    32      public static ConversationMessager createConversationMessager(String className, Class dfltClass)
    33      throws OrchestraException
    34      {
    35          if (className == null)
    36          {
    37              return (ConversationMessager) _ClassUtils.newInstance(dfltClass);
    38          }
    39
    40          // First try to find a bean of that name in the dependency-injection
    41          // framework.
    42          FrameworkAdapter fa = FrameworkAdapter.getCurrentInstance();
    43          Object instance = fa.getBean(className);
    44          if (instance instanceof ConversationMessager)
    45          {
    46              return (ConversationMessager) instance;
    47          }
    48
    49          // Now resort to trying the value as a classname.
    50          return (ConversationMessager) _ClassUtils.newInstance(className);
    51      }
    52
    53  }