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Introduction
This document is a complement to Petals SE-JSR181 component documentation. It assumes that you already know how to generate a JSR181 SU using PetalsStudio : most code examples detailed here are embedded in the JSR181 SU main class, pointed as <jsr181:class> in the jbi.xml of the SU.
Implementing a web method that deals with complex types and attachments
This example is an upload method : it receives path + file name information (where to store the file) as a parameter, and a file to upload (as a binary attachment).
Upload method in SU main class (JAX-WS annotated)
@WebMethod( operationName="upload" ) public String upload(@WebParam( name="destination" ) UploadDestination dest) { // Get the JBI context JBIContext jbiContext = JBIContextManager.getJBIContext(); Exchange exchange = jbiContext.getExchange(); try { Set<DataHandler> atts = exchange.getInMessageAttachments(); int n = 0; for(DataHandler att : atts) { if(n == 1) { FileOutputStream out = new FileOutputStream(dest.getPath() + File.separator + dest.getName()); InputStream in = att.getInputStream(); byte buf[] = new byte[256]; while(in.read(buf) >= 0) { out.write(buf); } out.close(); } n++; } } catch (Exception e) { Logger.getLogger( getClass().getName()).severe("Upload error: " + e.getMessage()); } return "upload destination=" + dest; }
Class for complex type parameter
This class is a simple JavaBean (POJO with getter/setter methods for each field : here, fields are "path" and "name", as the class represents an "upload destination" = a file).
package org.ow2.petals.usecase.jsr181; public class UploadDestination { String name_ = "/tmp"; String path_ = "petals-attachment"; public String getName() { return name_; } public void setName(String name) { this.name_ = name; } public String getPath() { return path_; } public void setPath(String path) { this.path_ = path; } public String toString() { return (path_ == null ? "" : path_) + "/" + name_; } }