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.PrintStream;
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;
29 * Retrieving pages using the post method.
31 public class PostPageRequest extends AbstractPageRequest {
34 * Constructs the request.
35 * @param aMaxTries Maximum number of retries.
36 * @param aMaxDelay Maximum delay before executing the request.
37 * @param aParams Request parameters to use.
38 * @param aXslt XSLT to use.
40 public PostPageRequest(int aMaxTries, int aMaxDelay, NameValuePair[] aParams, String aXslt) {
41 super(aMaxTries, aMaxDelay, aParams, aXslt, null);
45 * Constructs the request.
46 * @param aMaxTries Maximum number of retries.
47 * @param aMaxDelay Maximum delay before executing the request.
48 * @param aParams Request parameters to use.
49 * @param aXslt XSLT to use.
50 * @param aOs Logging output stream to use.
52 public PostPageRequest(int aMaxTries, int aMaxDelay, NameValuePair[] aParams, String aXslt,
54 super(aMaxTries, aMaxDelay, aParams, aXslt, aOs);
60 * @see org.wamblee.crawler.PageRequest#execute(java.lang.String,
61 * org.apache.commons.httpclient.HttpClient)
63 public Document execute(String aUrl, HttpClient aClient)
64 throws PageException {
65 PostMethod method = new PostMethod(aUrl);
66 method.addParameters(getParameters());
68 return executeMethod(aClient, method);
69 } catch (TransformerException e) {
70 throw new PageException(e.getMessage(), e);