HttpServletRequestMap.java :  » Workflow-Engines » spring-webflow-2.0.8 » org » springframework » webflow » context » servlet » Java Open Source

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spring webflow 2.0.8 » org » springframework » webflow » context » servlet » HttpServletRequestMap.java
/*
 * Copyright 2004-2008 the original author or authors.
 *
 * Licensed 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.springframework.webflow.context.servlet;

import java.util.Iterator;

import javax.servlet.http.HttpServletRequest;

import org.springframework.binding.collection.StringKeyedMapAdapter;
import org.springframework.webflow.core.collection.CollectionUtils;

/**
 * Map backed by the Servlet HTTP request attribute map for accessing request local attributes.
 * 
 * @author Keith Donald
 */
public class HttpServletRequestMap extends StringKeyedMapAdapter {

  /**
   * The wrapped HTTP request.
   */
  private HttpServletRequest request;

  /**
   * Create a new map wrapping the attributes of given request.
   */
  public HttpServletRequestMap(HttpServletRequest request) {
    this.request = request;
  }

  protected Object getAttribute(String key) {
    return request.getAttribute(key);
  }

  protected void setAttribute(String key, Object value) {
    request.setAttribute(key, value);
  }

  protected void removeAttribute(String key) {
    request.removeAttribute(key);
  }

  protected Iterator getAttributeNames() {
    return CollectionUtils.toIterator(request.getAttributeNames());
  }
}
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