NoCacheHttpResponse.java

/**
 * Sahi - Web Automation and Test Tool
 *
 * Copyright  2006  V Narayan Raman
 *
 * 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 net.sf.sahi.response;

import java.util.logging.Level;


import net.sf.sahi.util.Utils;
import org.apache.log4j.Logger;

/**
 * User: nraman
 * Date: May 18, 2005
 * Time: 11:04:06 PM
 */
public class NoCacheHttpResponse extends HttpResponse {

  private static final Logger logger = Logger.getLogger(NoCacheHttpResponse.class);
  private int status = 200;
  private String statusMessage = "OK";

  public NoCacheHttpResponse() {
    this("");
  }

  public NoCacheHttpResponse(final String dataStr) {
    setNoCacheHeaders(Utils.getBytes(dataStr));
  }

  public NoCacheHttpResponse(final int status, final String statusMessage, final String dataStr) {
    this.status = status;
    if (status != 200) {
      this.statusMessage = "";
    }
    this.statusMessage = statusMessage == null ? "" : statusMessage;
    setNoCacheHeaders(Utils.getBytes(dataStr));
  }

  protected void setNoCacheHeaders(final byte[] data) {
    setNoCacheHeaders(data, null);
  }

  protected void setNoCacheHeaders(final byte[] data, String contentType) {
    setData(data);
    setFirstLine("HTTP/1.1 " + status + " " + statusMessage);
    if (contentType == null)
      setHeader("Content-Type", "text/html");
    else
      setHeader("Content-Type", contentType);
    setHeader("Cache-control", "no-store");
    setHeader("Pragma", "no-cache");
    setHeader("Expires", "-1");
    setHeader("Content-Length", "" + data().length);
    resetRawHeaders();
    logger.debug(new String(rawHeaders()));
  }

  public NoCacheHttpResponse(final HttpResponse httpResponse) {
    setNoCacheHeaders(httpResponse.data(), httpResponse.contentTypeHeader());
  }
}