Package com.caucho.soap.skeleton

Source Code of com.caucho.soap.skeleton.DocumentBareAction

/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT.  See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
*   Free Software Foundation, Inc.
*   59 Temple Place, Suite 330
*   Boston, MA 02111-1307  USA
*
* @author Emil Ong
*/

package com.caucho.soap.skeleton;

import com.caucho.jaxb.property.Property;
import com.caucho.jaxb.property.WrapperProperty;
import com.caucho.jaxb.JAXBContextImpl;
import static com.caucho.soap.wsdl.WSDLConstants.*;
import com.caucho.soap.wsdl.WSDLDefinitions;
import com.caucho.util.L10N;
import com.caucho.xml.stream.StaxUtil;

import javax.jws.WebParam;
import javax.jws.WebResult;
import static javax.xml.XMLConstants.*;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.JAXBException;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.ws.Holder;
import javax.xml.ws.WebServiceException;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;
import java.util.logging.Logger;

/**
* Invokes a SOAP request on a Java POJO method.
*
* This class handles the document-literal bare (i.e. non-wrapped) style
* which JAX-WS maps to methods of at most one input and one output
* argument.  Non-void return values count as an output argument and
* INOUT arguments count as both one input and one output.
*/
public class DocumentBareAction extends AbstractAction {
  private final static Logger log =
    Logger.getLogger(DocumentBareAction.class.getName());
  private static final L10N L = new L10N(DocumentBareAction.class);
  private static final QName ITEM_NAME = new QName("item");

  private int _inputArgument = -1;
  private String _partName;
  private final String _messageName;

  public DocumentBareAction(Method method, Method eiMethod,
                            JAXBContextImpl jaxbContext,
                            String targetNamespace,
                            WSDLDefinitions wsdl,
                            Marshaller marshaller,
                            Unmarshaller unmarshaller)
    throws JAXBException, WebServiceException
  {
    super(method, eiMethod,
          jaxbContext, targetNamespace, wsdl,
          marshaller, unmarshaller);

    _messageName = _operationName;

    if (_bodyInputs > 1) {
      throw new WebServiceException(L.l("Document bare methods may not have more than one input argument: {0}.{1} has {2} input args", method.getDeclaringClass().getName(), method.getName(), _bodyInputs));
    }

    if (_bodyOutputs > 1)
      throw new WebServiceException(L.l("Document bare methods may not have more than one output argument: {0}.{1} has {2} output args (including the return value)", method.getDeclaringClass().getName(), method.getName(), _bodyOutputs));

    //
    // Fix the argument/response names
    //

    // XXX header args/no args

    if (_bodyInputs == 1) {
      for (int i = 0; i < _bodyArgs.length; i++) {
        if (! (_bodyArgs[i] instanceof OutParameterMarshal)) {
          _inputArgument = i;
          break;
        }
      }

      // XXX check that @WebParam is not set on the argument (and for some
      // reason explicitly set the name to "arg0")
      if ("arg0".equals(_bodyArgs[_inputArgument].getName().getLocalPart())) {

        QName argName = new QName(_targetNamespace, _operationName);
        _bodyArgs[_inputArgument].setName(argName);
      }
      else
        _inputName = _bodyArgs[_inputArgument].getName().getLocalPart();

      // Document bare does something strange with arrays and collections:
      //  They are wrapped and their individual element names are <item>,
      //  except for byte[].
      Class[] parameterTypes = method.getParameterTypes();
      Class inputType = parameterTypes[_inputArgument];

      if ((inputType.isArray() &&
           ! byte.class.equals(inputType.getComponentType()))
          || Collection.class.isAssignableFrom(inputType)) {
        WrapperProperty wrapper =
          new WrapperProperty(_bodyArgs[_inputArgument]._property,
                              _bodyArgs[_inputArgument].getName(),
                              ITEM_NAME);

        _bodyArgs[_inputArgument].setName(ITEM_NAME);
        _bodyArgs[_inputArgument]._property = wrapper;
      }
    }
    else if (_bodyInputs == 0)
      _inputName = ""; // services/131[89]

    if (_returnMarshal != null) {
      WebResult webResult = _method.getAnnotation(WebResult.class);

      if (webResult == null && eiMethod != null)
        webResult = eiMethod.getAnnotation(WebResult.class);

      if (webResult == null || "".equals(webResult.name()))
        _returnMarshal.setName(new QName(_targetNamespace, _responseName));

      // services/144[01]

      else if (webResult.targetNamespace() == null ||
               "".equals(webResult.targetNamespace()))
        _returnMarshal.setName(new QName(_targetNamespace, webResult.name()));

      else
        _returnMarshal.setName(new QName(webResult.targetNamespace(),
                                         webResult.name()));

      Class returnType = method.getReturnType();

      if ((returnType.isArray() &&
           ! byte.class.equals(returnType.getComponentType()))
          || Collection.class.isAssignableFrom(returnType)) {
        WrapperProperty wrapper =
          new WrapperProperty(_returnMarshal._property,
                              _returnMarshal.getName(),
                              ITEM_NAME);

        _returnMarshal.setName(ITEM_NAME);
        _returnMarshal._property = wrapper;
      }
    }
  }

  protected void writeMethodInvocation(XMLStreamWriter out, Object []args)
    throws IOException, XMLStreamException, JAXBException
  {
    // services/1308
    if (_bodyInputs > 0) {
      for (int i = 0; i < _bodyArgs.length; i++)
        _bodyArgs[i].serializeCall(out, args);
    }
  }

  protected Object[] readMethodInvocation(XMLStreamReader header,
                                          XMLStreamReader in)
    throws IOException, XMLStreamException, JAXBException
  {
    Object[] args = new Object[_arity];

    readHeaders(header, args);

    if (_bodyInputs > 0) {
      for (int i = 0; i < _bodyArgs.length; i++)
        _bodyArgs[i].deserializeCall(in, args);
    }

    return args;
  }

  protected void writeResponse(XMLStreamWriter out, Object value, Object[] args)
    throws IOException, XMLStreamException, JAXBException
  {
    if (_returnMarshal != null && ! _headerReturn)
      _returnMarshal.serializeReply(out, value);

    for (int i = 0; i < _bodyArgs.length; i++)
      _bodyArgs[i].serializeReply(out, args);
  }

  protected Object readResponse(XMLStreamReader in, Object []args)
    throws IOException, XMLStreamException, JAXBException, Throwable
  {
    Object ret = null;

    in.nextTag();
    in.require(XMLStreamReader.START_ELEMENT, null, "Envelope");

    in.nextTag();
    in.require(XMLStreamReader.START_ELEMENT, null, null);

    if ("Header".equals(in.getLocalName())) {
      while (in.nextTag() == XMLStreamReader.START_ELEMENT) {
        String tagName = in.getLocalName();

        ParameterMarshal marshal = _headerArguments.get(tagName);

        if (marshal != null)
          marshal.deserializeReply(in, args);
        else {
          int depth = 1;

          while (depth > 0) {
            switch (in.nextTag()) {
              case XMLStreamReader.START_ELEMENT:
                depth++;
                break;
              case XMLStreamReader.END_ELEMENT:
                depth--;
                break;
              default:
                throw new IOException("expected </Header>");
            }
          }
        }
      }

      in.require(XMLStreamReader.END_ELEMENT, null, "Header");

      in.nextTag();
    }

    in.require(XMLStreamReader.START_ELEMENT, null, "Body");

    in.nextTag();

    if (in.getEventType() == XMLStreamReader.START_ELEMENT &&
        "Fault".equals(in.getLocalName())) {
      Throwable fault = readFault(in);

      if (fault == null)
        throw new WebServiceException(); // XXX

      throw fault;
    }

    if (_returnMarshal != null)
      ret = _returnMarshal.deserializeReply(in, ret);

    for (int i = 0; i < _bodyArgs.length; i++)
      _bodyArgs[i].deserializeReply(in, args);

    in.require(XMLStreamReader.END_ELEMENT, null, "Body");

    in.nextTag();
    in.require(XMLStreamReader.END_ELEMENT, null, "Envelope");

    return ret;
  }

  public void writeWSDLBindingOperation(XMLStreamWriter out,
                                        String soapNamespaceURI)
    throws XMLStreamException
  {
    out.writeStartElement(WSDL_NAMESPACE, "operation");
    out.writeAttribute("name", _messageName);
    // XXX out.writeAttribute("parameterOrder", "");

    out.writeEmptyElement(soapNamespaceURI, "operation");
    out.writeAttribute("soapAction", _soapAction);

    out.writeStartElement(WSDL_NAMESPACE, "input");
    // XXX
    out.writeEmptyElement(soapNamespaceURI, "body");
    out.writeAttribute("use", "literal");

    out.writeEndElement(); // input

    if (! _isOneway) {
      out.writeStartElement(WSDL_NAMESPACE, "output");
      // XXX
      out.writeEmptyElement(soapNamespaceURI, "body");
      out.writeAttribute("use", "literal");

      out.writeEndElement(); // output
    }

    out.writeEndElement(); // operation
  }

  public void writeWSDLMessages(XMLStreamWriter out, String soapNamespaceURI)
    throws XMLStreamException
  {
    out.writeStartElement(WSDL_NAMESPACE, "message");
    out.writeAttribute("name", _messageName);

    if (_bodyInputs > 0) {
      out.writeEmptyElement(WSDL_NAMESPACE, "part");

      // XXX take name from @WebParam

      out.writeAttribute("name", _operationName);
      out.writeAttribute("element",
                         TARGET_NAMESPACE_PREFIX + ':' + _operationName);
    }

    out.writeEndElement(); // message

    if (! _isOneway) {
      out.writeStartElement(WSDL_NAMESPACE, "message");
      out.writeAttribute("name", _responseName);

      if (_returnMarshal != null) {
        out.writeEmptyElement(WSDL_NAMESPACE, "part");
        out.writeAttribute("name", _responseName);
        out.writeAttribute("element",
                           TARGET_NAMESPACE_PREFIX + ':' + _responseName);
      }

      out.writeEndElement(); // message
    }
  }
 
  public void writeWSDLOperation(XMLStreamWriter out, String soapNamespaceURI)
    throws XMLStreamException
  {
    out.writeStartElement(WSDL_NAMESPACE, "operation");
    out.writeAttribute("name", _operationName);
    // XXX out.writeAttribute("parameterOrder", "");

    out.writeEmptyElement(WSDL_NAMESPACE, "input");
    out.writeAttribute("message",
                       TARGET_NAMESPACE_PREFIX + ':' + _messageName);

    if (! _isOneway) {
      out.writeEmptyElement(WSDL_NAMESPACE, "output");
      out.writeAttribute("message",
                         TARGET_NAMESPACE_PREFIX + ':' + _responseName);
    }

    out.writeEndElement(); // operation
  }

  public void writeSchema(XMLStreamWriter out,
                          String namespace,
                          JAXBContextImpl context)
    throws XMLStreamException, WebServiceException
  {
    if (_bodyInputs > 0) {
      QName elementName = new QName(namespace, _operationName);

      if (context.hasRootElement(elementName))
        throw new WebServiceException(L.l("Duplicate element {0}",
                                          elementName));

      out.writeEmptyElement(XML_SCHEMA_PREFIX,
                            "element",
                            W3C_XML_SCHEMA_NS_URI);
      out.writeAttribute("name", _operationName);

      Property property = _bodyArgs[_inputArgument].getProperty();
      String type = StaxUtil.qnameToString(out, property.getSchemaType());

      out.writeAttribute("type", type);
    }

    if (_returnMarshal != null) {
      QName elementName = new QName(namespace, _responseName);

      if (context.hasRootElement(elementName))
        throw new WebServiceException(L.l("Duplicate element {0}",
                                          elementName));

      out.writeEmptyElement(XML_SCHEMA_PREFIX,
                            "element",
                            W3C_XML_SCHEMA_NS_URI);
      out.writeAttribute("name", _responseName);

      QName schemaType = _returnMarshal.getProperty().getSchemaType();
      String type = StaxUtil.qnameToString(out, schemaType);

      out.writeAttribute("type", type);
    }
  }

  public String toString()
  {
    return "DocumentBareAction[" + _method.getName() + "]";
  }
}
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