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/* Generated by AspectJ version 1.0.5 */
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package org.apache.cactus.client;
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import java.net.URL;
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import java.net.HttpURLConnection;
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import java.util.Enumeration;
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import java.io.InputStream;
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import java.io.IOException;
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import java.io.ByteArrayOutputStream;
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import org.apache.commons.httpclient.HttpClient;
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import org.apache.commons.httpclient.methods.PostMethod;
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import org.apache.commons.httpclient.methods.GetMethod;
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import org.apache.cactus.WebRequest;
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import org.apache.cactus.client.authentication.AbstractAuthentication;
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/**
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* Implementation of <code>ConnectionHelper</code> using Jakarta Commons
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* HttpClient.
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*
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* @author <a href="mailto:vmassol@apache.org">Vincent Massol</a>
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*
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* @version $Id: HttpClientConnectionHelper.java,v 1.1 2002/07/26 18:50:29 vmassol Exp $
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*/
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public class HttpClientConnectionHelper extends AbstractConnectionHelper {
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/**
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* The <code>HttpMethod</code> used to connect to the HTTP server. It is
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* either a <code>GetMethod</code> or a <code>PostMethod</code>.
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*/
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private GetMethod method;
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/**
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* The URL that will be used for the HTTP connection.
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*/
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private String url;
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/**
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* @param theURL the URL that will be used for the HTTP connection.
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*/
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public HttpClientConnectionHelper(String theURL) {
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super();
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this.url = theURL;
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}
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/**
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* @see ConnectionHelper#connect(WebRequest)
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*/
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public HttpURLConnection connect(WebRequest theRequest) throws Throwable {
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URL url = new URL(this.url);
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AbstractAuthentication authentication = theRequest.getAuthentication();
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if (authentication != null) {
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authentication.configure(theRequest);
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}
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url = this.addParametersGet(theRequest, url);
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if (theRequest.getParameterNamesPost().hasMoreElements() || (theRequest.getUserData() !=
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null)) {
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this.method = new PostMethod();
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} else {
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this.method = new GetMethod();
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}
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this.method.setUseDisk(false);
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this.method.setFollowRedirects(false);
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this.method.setPath(url.getPath());
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this.method.setQueryString(url.getQuery());
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this.method.setRequestHeader("Content-type", theRequest.getContentType());
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this.addHeaders(theRequest);
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String cookieString = this.getCookieString(theRequest, url);
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if (cookieString != null) {
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this.method.addRequestHeader("Cookie", cookieString);
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}
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if (theRequest.getUserData() != null) {
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this.addUserData(theRequest);
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} else {
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this.addParametersPost(theRequest);
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}
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HttpClient client = new HttpClient();
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client.startSession(url.getHost(), url.getPort());
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client.executeMethod(this.method);
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return new org.apache.cactus.util.HttpURLConnection(this.method, url);
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}
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/**
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* Add the HTTP parameters that need to be passed in the request body.
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*
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* @param theRequest the request containing all data to pass to the server
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* redirector.
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*/
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private void addParametersPost(WebRequest theRequest) {
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if (!theRequest.getParameterNamesPost().hasMoreElements()) {
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return;
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}
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Enumeration keys = theRequest.getParameterNamesPost();
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if (keys.hasMoreElements()) {
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String key = (String)keys.nextElement();
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String[] values = theRequest.getParameterValuesPost(key);
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for (int i = 0; i < values.length; i++) {
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((PostMethod)this.method).addParameter(key, values[i]);
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}
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}
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}
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/**
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* Add the Headers to the request.
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*
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* @param theRequest the request containing all data to pass to the server
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* redirector.
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*/
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private void addHeaders(WebRequest theRequest) {
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Enumeration keys = theRequest.getHeaderNames();
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while (keys.hasMoreElements()){
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String key = (String)keys.nextElement();
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String[] values = theRequest.getHeaderValues(key);
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StringBuffer fullHeaderValue = new StringBuffer(values[0]);
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for (int i = 1; i < values.length; i++) {
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fullHeaderValue.append("," + values[i]);
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}
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this.method.addRequestHeader(key, fullHeaderValue.toString());
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}
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}
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/**
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* Add user data in the request body.
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*
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* @param theRequest the request containing all data to pass to the server
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* redirector.
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* @exception IOException if we fail to read the user data
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*/
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private void addUserData(WebRequest theRequest) throws IOException {
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if (theRequest.getUserData() == null) {
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return;
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}
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InputStream stream = theRequest.getUserData();
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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byte[] buffer = new byte[2048];
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int length;
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while ((length = stream.read(buffer)) != -1){
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baos.write(buffer, 0, length);
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}
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((PostMethod)this.method).setRequestBody(baos.toString());
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}
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}
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