| /* |
| * Copyright 2002,2004 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.commons.jelly.tags.soap; |
| |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.rmi.RemoteException; |
| |
| import org.apache.commons.httpclient.HttpClient; |
| import org.apache.commons.httpclient.HttpException; |
| import org.apache.commons.httpclient.methods.EntityEnclosingMethod; |
| import org.apache.commons.httpclient.methods.PostMethod; |
| import org.apache.commons.jelly.JellyTagException; |
| import org.apache.commons.jelly.MissingAttributeException; |
| import org.apache.commons.jelly.TagSupport; |
| import org.apache.commons.jelly.XMLOutput; |
| |
| /** |
| * Invokes a web service |
| * |
| * @author <a href="mailto:jim@bnainc.net">James Birchfield</a> |
| * @version $Revision: 1.1 $ |
| */ |
| public class InvokeRawTag extends TagSupport |
| { |
| |
| private String var; |
| private String endpoint = null; |
| private String soapAction; |
| |
| public InvokeRawTag() |
| { |
| } |
| |
| // Tag interface |
| //------------------------------------------------------------------------- |
| public void doTag(XMLOutput output) |
| throws MissingAttributeException, JellyTagException |
| { |
| if (endpoint == null) |
| { |
| throw new MissingAttributeException("endpoint"); |
| } |
| |
| String request = getBodyText(); |
| |
| String answer = null; |
| try |
| { |
| // Prepare HTTP post |
| PostMethod post = new PostMethod(endpoint); |
| |
| // Request content will be retrieved directly |
| // from the input stream |
| post.setRequestBody(new StringInputStream(request)); |
| |
| // Per default, the request content needs to be buffered |
| // in order to determine its length. |
| // Request body buffering can be avoided when |
| // = content length is explicitly specified |
| // = chunk-encoding is used |
| if (request.length() < Integer.MAX_VALUE) |
| { |
| post.setRequestContentLength((int) request.length()); |
| } |
| else |
| { |
| post.setRequestContentLength( |
| EntityEnclosingMethod.CONTENT_LENGTH_CHUNKED); |
| } |
| |
| // Specify content type and encoding |
| // If content encoding is not explicitly specified |
| // ISO-8859-1 is assumed |
| post.setRequestHeader( |
| "Content-type", |
| "text/xml; charset=ISO-8859-1"); |
| |
| // Set the SOAPAction header |
| if ( soapAction == null ) |
| { |
| post.setRequestHeader( "SOAPAction", ""); |
| } |
| else |
| { |
| post.setRequestHeader( "SOAPAction", soapAction); |
| } |
| |
| // Get HTTP client |
| HttpClient httpclient = new HttpClient(); |
| // Execute request |
| int result = httpclient.executeMethod(post); |
| |
| answer = post.getResponseBodyAsString(); |
| |
| // Release current connection to the connection pool once you are done |
| post.releaseConnection(); |
| } |
| catch (MalformedURLException e) |
| { |
| throw new JellyTagException(e); |
| } |
| catch (RemoteException e) |
| { |
| throw new JellyTagException(e); |
| } |
| catch (HttpException e) |
| { |
| throw new JellyTagException(e); |
| } |
| catch (IOException e) |
| { |
| throw new JellyTagException(e); |
| } |
| |
| if (var != null) |
| { |
| context.setVariable(var, answer); |
| } |
| else |
| { |
| // should turn the answer into XML events... |
| throw new JellyTagException( |
| "Not implemented yet; should stream results as XML events. Results: " |
| + answer); |
| } |
| } |
| |
| // Properties |
| //------------------------------------------------------------------------- |
| /** |
| * Sets the end point to which the invocation will occur |
| */ |
| public void setEndpoint(String endpoint) |
| { |
| this.endpoint = endpoint; |
| } |
| |
| /** |
| * Sets the name of the variable to output the results of the SOAP call to. |
| */ |
| public void setVar(String var) |
| { |
| this.var = var; |
| } |
| |
| /** |
| * The SOAPAction HTTP header. |
| */ |
| public void setSoapAction(String action) |
| { |
| soapAction = action; |
| } |
| |
| } |