| /* |
| |
| Copyright 2004, 2005 (C) John Wilson. All Rights Reserved. |
| |
| Redistribution and use of this software and associated documentation |
| ("Software"), with or without modification, are permitted provided |
| that the following conditions are met: |
| |
| 1. Redistributions of source code must retain copyright |
| statements and notices. Redistributions must also contain a |
| copy of this document. |
| |
| 2. Redistributions in binary form must reproduce the |
| above copyright notice, this list of conditions and the |
| following disclaimer in the documentation and/or other |
| materials provided with the distribution. |
| |
| 3. The name "groovy" must not be used to endorse or promote |
| products derived from this Software without prior written |
| permission of The Codehaus. For written permission, |
| please contact info@codehaus.org. |
| |
| 4. Products derived from this Software may not be called "groovy" |
| nor may "groovy" appear in their names without prior written |
| permission of The Codehaus. "groovy" is a registered |
| trademark of The Codehaus. |
| |
| 5. Due credit should be given to The Codehaus - |
| http://groovy.codehaus.org/ |
| |
| THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS |
| ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT |
| NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| */ |
| |
| package groovy.net.xmlrpc; |
| |
| import groovy.lang.Closure; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.util.List; |
| |
| import uk.co.wilson.net.xmlrpc.XMLRPCFailException; |
| |
| /** |
| * @author John Wilson (tug@wilson.co.uk) |
| */ |
| public class XMLRPCServerProxy extends RPCServerProxy { |
| static final String xmlDeclaration = "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"; |
| private URL serverURL; |
| |
| public XMLRPCServerProxy(final String serverURL) throws MalformedURLException { |
| this.serverURL = new URL(serverURL); |
| } |
| |
| /* (non-Javadoc) |
| * @see groovy.lang.GroovyObject#invokeMethod(java.lang.String, java.lang.Object) |
| */ |
| public Object invokeMethod(final String name, final Object args) { |
| if ("invokeMethod".equals(name)) return super.invokeMethod(name, args); |
| |
| final Object[] params = (args instanceof List) ? ((List)args).toArray() : (Object[])args; |
| int numberOfParams = params.length; |
| |
| if (numberOfParams != 0 && params[numberOfParams - 1] instanceof Closure) { |
| numberOfParams--; // the closure is not to be passed to the remote method |
| } |
| |
| try { |
| final byte [] request = XMLRPCMessageProcessor.emitCall(new StringBuffer(xmlDeclaration), name, params, numberOfParams).toString().getBytes("ISO-8859-1"); |
| final URLConnection connection = this.serverURL.openConnection(); |
| |
| connection.setDoInput(true); |
| connection.setDoOutput(true); |
| connection.setUseCaches(false); |
| connection.setAllowUserInteraction(false); |
| connection.setRequestProperty("Content-Length", Integer.toString(request.length)); |
| connection.setRequestProperty("Content-Type", "text/xml"); |
| |
| final OutputStream requestStream = connection.getOutputStream(); |
| requestStream.write(request); |
| requestStream.flush(); |
| requestStream.close(); |
| |
| final XMLRPCMessageProcessor responseParser = new XMLRPCMessageProcessor(); |
| |
| try { |
| responseParser.parseMessage(connection.getInputStream()); |
| } |
| catch (final XMLRPCFailException e) { |
| // e.printStackTrace(); |
| throw new XMLRPCCallFailureException(e.getFaultString(), new Integer(e.getFaultCode())); |
| } |
| |
| final List response = responseParser.getParams(); |
| |
| if (response == null) throw new XMLRPCCallFailureException("Empty response from server", new Integer(0)); |
| |
| if (numberOfParams == params.length) { |
| return response.get(0); |
| } else { |
| // pass the result of the call to the closure |
| final Closure closure = (Closure)params[numberOfParams]; |
| |
| closure.setDelegate(this); |
| return closure.call(new Object[] {response.get(0)}); |
| } |
| |
| } catch (final IOException e) { |
| throw new XMLRPCCallFailureException(e.getMessage(), new Integer(0)); |
| } catch (final XMLRPCFailException e) { |
| throw new XMLRPCCallFailureException(e.getFaultString(), e.getCause()); |
| } |
| } |
| } |