Package org.apache.wicket.request.handler.resource

Source Code of org.apache.wicket.request.handler.resource.WebExternalResourceRequestHandler

/*
* 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.wicket.request.handler.resource;

import org.apache.wicket.request.IRequestCycle;
import org.apache.wicket.request.resource.ContentDisposition;
import org.apache.wicket.core.util.resource.WebExternalResourceStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
* Request target that is not a Wicket resource. For example, such a resource could denote an image
* in the web application directory (not mapped to a Wicket servlet). NOTE: this target can only be
* used in a servlet environment with {@link org.apache.wicket.request.cycle.RequestCycle}s.
*
* <p>
* <b>NOTE:</b> this class is a wrapper around
* {@link ResourceStreamRequestHandler#ResourceStreamRequestHandler(org.apache.wicket.util.resource.IResourceStream)}
* , and kept for compatibility purposes.
* </p>
*
* @author Eelco Hillenius
*/
public class WebExternalResourceRequestHandler extends ResourceStreamRequestHandler
{
  /** log. */
  private static final Logger log = LoggerFactory.getLogger(WebExternalResourceRequestHandler.class);

  /** the relative url of the external resource. */
  private final String uri;

  /**
   * Construct.
   *
   * @param uri
   *            the relative url of the external resource
   */
  public WebExternalResourceRequestHandler(String uri)
  {
    super(new WebExternalResourceStream(uri));
    this.uri = uri;
    setContentDisposition(ContentDisposition.INLINE);
  }

  /**
   * Gets the url to the external resource.
   *
   * @return the url to the external resource
   */
  public final String getUrl()
  {
    return uri;
  }

  /**
   * @see org.apache.wicket.request.IRequestHandler#detach(org.apache.wicket.request.IRequestCycle)
   */
  @Override
  public void detach(IRequestCycle requestCycle)
  {
  }

  /**
   * @see java.lang.Object#equals(java.lang.Object)
   */
  @Override
  public boolean equals(Object obj)
  {
    if (obj instanceof WebExternalResourceRequestHandler)
    {
      WebExternalResourceRequestHandler that = (WebExternalResourceRequestHandler)obj;
      return uri.equals(that.uri);
    }
    return false;
  }

  /**
   * @see java.lang.Object#hashCode()
   */
  @Override
  public int hashCode()
  {
    int result = "WebExternalResourceRequestTarget".hashCode();
    result += uri.hashCode();
    return 17 * result;
  }

  /**
   * @see java.lang.Object#toString()
   */
  @Override
  public String toString()
  {
    return "[WebExternalResourceRequestTarget@" + hashCode() + " " + uri + "]";
  }
}
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