defaultsoapfaultwriter.java

jbpm-bpel-1.1.Beta3 JBoss jBPM Starters Kit 是一个综合包

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the JBPM BPEL PUBLIC LICENSE AGREEMENT as
 * published by JBoss Inc.; either version 1.0 of the License, or
 * (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 */
package org.jbpm.bpel.integration.server;

import java.util.Iterator;
import java.util.Map;

import javax.xml.namespace.QName;
import javax.xml.rpc.soap.SOAPFaultException;
import javax.xml.soap.Detail;
import javax.xml.soap.DetailEntry;
import javax.xml.soap.Name;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPFault;

import org.apache.commons.lang.StringUtils;
import org.w3c.dom.Element;

import org.jbpm.bpel.xml.util.XmlUtil;

/**
 * @author Alejandro Guizar
 * @version $Revision: 1.1 $ $Date: 2007/01/18 12:58:28 $
 */
public class DefaultSoapFaultWriter implements SoapFaultWriter {

  public void writeFault(SOAPEnvelope envelope, SOAPFaultException exception,
      Map parts) throws SOAPException {
    SOAPBody body = envelope.getBody();
    // remove existing children
    body.removeContents();

    // add a soapenv:Fault element
    SOAPFault fault = body.addFault();

    writeFaultCode(fault, exception.getFaultCode());
    writeFaultString(fault, exception.getFaultString());
    if (parts != null)
      writeDetail(fault, parts);
  }

  private static void writeFaultCode(SOAPFault fault, QName code)
      throws SOAPException {
    String codeNamespace = code.getNamespaceURI();

    // is code in a namespace?
    if (codeNamespace.length() > 0) {
      String codePrefix = XmlUtil.getPrefix(codeNamespace, fault);
      // isn't the namespace declared?
      if (codePrefix == null)
        // propose an arbitrary prefix
        codePrefix = "faultCodeNS";

      // set code as qualified name
      SOAPEnvelope envelope = (SOAPEnvelope) fault.getParentElement()
          .getParentElement();
      fault.setFaultCode(envelope.createName(code.getLocalPart(), codePrefix,
          codeNamespace));
    }
    else {
      // set code as local name
      fault.setFaultCode(code.getLocalPart());
    }
  }

  private static void writeFaultString(SOAPFault fault, String string)
      throws SOAPException {
    fault.setFaultString(string);
  }

  private static void writeDetail(SOAPFault fault, Map parts)
      throws SOAPException {
    // create detail element
    Detail detail = fault.addDetail();

    // iterate through the fault message parts
    SOAPEnvelope envelope = (SOAPEnvelope) fault.getParentElement()
        .getParentElement();
    Iterator partIt = parts.values().iterator();
    while (partIt.hasNext()) {
      Element part = (Element) partIt.next();
      writeDetailEntry(detail, part, envelope);
    }
  }

  private static void writeDetailEntry(Detail detail, Element part,
      SOAPEnvelope envelope) throws SOAPException {
    String partLocalName = part.getLocalName();
    String partNamespace = part.getNamespaceURI();

    // obtain the detail entry name from the part name
    Name entryName;
    if (StringUtils.isEmpty(partNamespace)) {
      entryName = envelope.createName(partLocalName);
    }
    else {
      entryName = envelope.createName(partLocalName, XmlUtil.getPrefix(
          partNamespace, part), partNamespace);
    }
    // create detail entry element
    DetailEntry detailEntry = detail.addDetailEntry(entryName);
    // copy fault part to detail entry
    XmlUtil.copy(detailEntry, part);
  }
}