2 * Copyright 2005 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package org.wamblee.crawler;
19 import java.io.IOException;
21 import javax.xml.transform.TransformerException;
23 import org.apache.commons.httpclient.HttpClient;
24 import org.apache.commons.httpclient.NameValuePair;
25 import org.apache.commons.httpclient.methods.PostMethod;
26 import org.w3c.dom.Document;
27 import org.wamblee.xml.XslTransformer;
30 * Retrieving pages using the post method.
32 public class PostPageRequest extends AbstractPageRequest {
35 * Constructs the request.
36 * @param aMaxTries Maximum number of retries.
37 * @param aMaxDelay Maximum delay before executing the request.
38 * @param aParams Request parameters to use.
39 * @param aHeaders Request headers to use.
40 * @param aXslt XSLT to use.
42 public PostPageRequest(int aMaxTries, int aMaxDelay,
43 NameValuePair[] aParams,
44 NameValuePair[] aHeaders,
45 String aXslt, XslTransformer aTransformer) {
46 super(aMaxTries, aMaxDelay, aParams, aHeaders, aXslt, aTransformer);
52 * @see org.wamblee.crawler.PageRequest#execute(java.lang.String,
53 * org.apache.commons.httpclient.HttpClient)
55 public Document execute(String aUrl, NameValuePair[] aParams, HttpClient aClient)
56 throws PageException {
57 PostMethod method = new PostMethod(aUrl);
58 method.addParameters(getParameters(aParams));
60 return executeMethod(aClient, method);
61 } catch (TransformerException e) {
62 throw new PageException("Transformation problem for url " + aUrl, e);
63 } catch (IOException e) {
64 throw new PageException("Problem getting page " + aUrl, e);