gecko-dev/mobile/android/base/httpclientandroidlib/protocol/ResponseDate.java

67 lines
2.4 KiB
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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package ch.boye.httpclientandroidlib.protocol;
import java.io.IOException;
import ch.boye.httpclientandroidlib.HttpException;
import ch.boye.httpclientandroidlib.HttpResponse;
import ch.boye.httpclientandroidlib.HttpResponseInterceptor;
import ch.boye.httpclientandroidlib.HttpStatus;
/**
* ResponseDate is responsible for adding <code>Date<c/ode> header to the
* outgoing responses. This interceptor is recommended for server side protocol
* processors.
*
* @since 4.0
*/
public class ResponseDate implements HttpResponseInterceptor {
private static final HttpDateGenerator DATE_GENERATOR = new HttpDateGenerator();
public ResponseDate() {
super();
}
public void process(final HttpResponse response, final HttpContext context)
throws HttpException, IOException {
if (response == null) {
throw new IllegalArgumentException
("HTTP response may not be null.");
}
int status = response.getStatusLine().getStatusCode();
if ((status >= HttpStatus.SC_OK) &&
!response.containsHeader(HTTP.DATE_HEADER)) {
String httpdate = DATE_GENERATOR.getCurrentDate();
response.setHeader(HTTP.DATE_HEADER, httpdate);
}
}
}