/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* 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 org.apache.cocoon.components.language.markup.xsp;
import org.apache.avalon.framework.component.ComponentException;
import org.apache.avalon.framework.component.ComponentManager;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.components.xscript.XScriptManager;
import org.apache.cocoon.components.xscript.XScriptObject;
import org.apache.cocoon.components.xscript.XScriptObjectInlineXML;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpConnection;
import org.apache.commons.httpclient.HttpState;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.excalibur.source.SourceUtil;
import org.xml.sax.InputSource;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.MalformedURLException;
import java.net.URL;
/**
* Helper for the SOAP logicsheet.
*
* @author <a href="mailto:ovidiu@cup.hp.com">Ovidiu Predescu</a>
* @author <a href="mailto:vgritsenko@apache.org">Vadim Gritsenko</a>
* @version CVS $Id: SOAPHelper.java,v 1.1 2004/03/10 12:58:05 stephan Exp $
* @since July 16, 2001
*/
public class SOAPHelper {
XScriptManager xscriptManager;
URL url;
String action = "";
XScriptObject xscriptObject;
String authorization = "";
public SOAPHelper(ComponentManager manager, String urlContext, String url,
String action, String authorization, XScriptObject xscriptObject)
throws MalformedURLException, ComponentException
{
this.xscriptManager = (XScriptManager) manager.lookup(XScriptManager.ROLE);
URL context = new URL(urlContext);
this.url = new URL(context, url);
this.action = action;
this.authorization = authorization;
this.xscriptObject = xscriptObject;
}
public XScriptObject invoke() throws ProcessingException
{
HttpConnection conn = null;
try {
if (action == null || action.equals("")) {
action = "\"\"";
}
String host = url.getHost();
int port = url.getPort();
if (System.getProperty("http.proxyHost") != null) {
String proxyHost = System.getProperty("http.proxyHost");
int proxyPort = Integer.parseInt(System.getProperty("http.proxyPort"));
conn = new HttpConnection(proxyHost, proxyPort, host, port);
} else {
conn = new HttpConnection(host, port);
}
PostMethod method = new PostMethod(url.getFile());
String request;
try {
// Write the SOAP request body
if (xscriptObject instanceof XScriptObjectInlineXML) {
// Skip overhead
request = ((XScriptObjectInlineXML) xscriptObject).getContent();
} else {
StringBuffer bodyBuffer = new StringBuffer();
InputSource saxSource = xscriptObject.getInputSource();
Reader r = null;
// Byte stream or character stream?
if (saxSource.getByteStream() != null) {
r = new InputStreamReader(saxSource.getByteStream());
} else {
r = saxSource.getCharacterStream();
}
try {
char[] buffer = new char[1024];
int len;
while ((len = r.read(buffer)) > 0)
bodyBuffer.append(buffer, 0, len);
} finally {
if (r != null) {
r.close();
}
}
request = bodyBuffer.toString();
}
} catch (Exception ex) {
throw new ProcessingException("Error assembling request", ex);
}
method.setRequestHeader(
new Header("Content-type", "text/xml; charset=\"utf-8\""));
method.setRequestHeader(new Header("SOAPAction", action));
method.setRequestBody(request);
if (authorization != null && !authorization.equals("")) {
method.setRequestHeader(new Header("Authorization","Basic "+SourceUtil.encodeBASE64(authorization)));
}
method.execute(new HttpState(), conn);
String ret = method.getResponseBodyAsString();
int startOfXML = ret.indexOf("<?xml");
if (startOfXML == -1) { // No xml?!
throw new ProcessingException("Invalid response - no xml");
}
return new XScriptObjectInlineXML(
xscriptManager,
ret.substring(startOfXML));
} catch (Exception ex) {
throw new ProcessingException("Error invoking remote service: " + ex,
ex);
} finally {
try {
if (conn != null)
conn.close();
} catch (Exception ex) {
}
}
}
}