gateway-spi/src/main/java/org/apache/knox/gateway/config/FilterConfigurationAdapter.java

/*
 * 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.knox.gateway.config;

import javax.servlet.FilterConfig;

public class FilterConfigurationAdapter implements ConfigurationAdapter {

  private FilterConfig config;

  public FilterConfigurationAdapter(FilterConfig config) {
    this.config = config;
  }

  @Override
  public Object getConfigurationValue(String name) throws ConfigurationException {
    Object value = config.getInitParameter(name);
    if (value == null) {
      value = config.getServletContext().getAttribute(name);
    }
    return value;
  }
}