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13 files changed, 542 insertions, 0 deletions

diff --git a/xsd-examples/cxx/tree/messaging/.gitignore b/xsd-examples/cxx/tree/messaging/.gitignore
new file mode 100644
index 0000000..f493b6c
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/.gitignore
@@ -0,0 +1 @@
+protocol.?xx
diff --git a/xsd-examples/cxx/tree/messaging/README b/xsd-examples/cxx/tree/messaging/README
new file mode 100644
index 0000000..435a4cf
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/README
@@ -0,0 +1,58 @@
+This example shows how to handle XML vocabularies with multiple
+root elements using the element type and element map features
+of the C++/Tree mapping. The main purpose of element types is
+to distinguish object models with the same root type but with
+different root elements. The element map allows uniform parsing
+and serialization of multiple root elements.
+
+The example consists of the following files:
+
+protocol.xsd
+  XML Schema which defines a simple bank account protocol with
+  requests such as withdraw and deposit. Note that some request
+  and response elements are of the same type.
+
+balance.xml
+withdraw.xml
+deposit.xml
+  Sample XML instances for the protocol requests.
+
+protocol.hxx
+protocol.cxx
+  C++ types that represent the given vocabulary. These are
+  generated by the XSD compiler from protocol.xsd. Generation of
+  element types instead of parsing and serialization functions is
+  requested with the --generate-element-type option. Generation of
+  the element map is requested with the --generate-element-map
+  option. 
+
+dom-parse.hxx
+dom-parse.cxx
+  Definition and implementation of the parse() function that
+  parses an XML document to a DOM document.
+
+dom-serialize.hxx
+dom-serialize.cxx
+  Definition and implementation of the serialize() function that
+  serializes a DOM document to XML.
+
+driver.cxx
+  Driver for the example. It first calls the above-mentioned parse()
+  function to parse the input file to a DOM document. It then calls
+  the parse() function on the element map to parse the root document
+  element to the object model. The object model is returned as a
+  pointer to xml_schema::element_type which is a common base type for
+  all element types. The driver then determines which request it has
+  received either using RTTI or by comparing the root element names.
+  Once the request type is determined, information about it is printed
+  to STDERR and the corresponding response is created. Finally, the
+  driver serializes the opaque response object to a DOM document
+  using the element map and then serializes this DOM document to
+  STDOUT using the above-mentioned serialize() function.
+  
+To run the example on the sample XML request documents simply
+execute:
+
+$ ./driver balance.xml
+$ ./driver withdraw.xml
+$ ./driver deposit.xml
diff --git a/xsd-examples/cxx/tree/messaging/balance.xml b/xsd-examples/cxx/tree/messaging/balance.xml
new file mode 100644
index 0000000..27c1509
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/balance.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : cxx/tree/messaging/balance.xml
+copyright : not copyrighted - public domain
+
+-->
+
+<p:balance xmlns:p="http://www.codesynthesis.com/protocol"
+           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	   xsi:schemaLocation="http://www.codesynthesis.com/protocol protocol.xsd">
+
+  <account>123456789</account>
+
+</p:balance>
diff --git a/xsd-examples/cxx/tree/messaging/buildfile b/xsd-examples/cxx/tree/messaging/buildfile
new file mode 100644
index 0000000..62fadda
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/buildfile
@@ -0,0 +1,29 @@
+# file      : cxx/tree/messaging/buildfile
+# license   : not copyrighted - public domain
+
+import libs  = libxsd%lib{xsd}
+import libs += libxerces-c%lib{xerces-c}
+
+./: exe{driver} xml{balance deposit withdraw} doc{README}
+
+exe{driver}: {hxx cxx}{* -protocol} {hxx ixx cxx}{protocol} $libs testscript
+
+<{hxx ixx cxx}{protocol}>: xsd{protocol} $xsd
+{{
+  diag xsd ($<[0]) # @@ TMP
+
+  $xsd cxx-tree --std c++11     \
+       --generate-inline        \
+       --root-element-all       \
+       --generate-element-type  \
+       --generate-element-map   \
+       --generate-serialization \
+       --output-dir $out_base   \
+       $path($<[0])
+}}
+
+cxx.poptions =+ "-I$out_base" "-I$src_base"
+
+# Define XSD_CXX11 since we include libxsd headers directly.
+#
+cxx.poptions += -DXSD_CXX11
diff --git a/xsd-examples/cxx/tree/messaging/deposit.xml b/xsd-examples/cxx/tree/messaging/deposit.xml
new file mode 100644
index 0000000..5be2a0a
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/deposit.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : cxx/tree/messaging/deposit.xml
+copyright : not copyrighted - public domain
+
+-->
+
+<p:deposit xmlns:p="http://www.codesynthesis.com/protocol"
+           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	   xsi:schemaLocation="http://www.codesynthesis.com/protocol protocol.xsd">
+
+  <account>123456789</account>
+  <amount>1000000</amount>
+
+</p:deposit>
diff --git a/xsd-examples/cxx/tree/messaging/dom-parse.cxx b/xsd-examples/cxx/tree/messaging/dom-parse.cxx
new file mode 100644
index 0000000..3ae5787
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/dom-parse.cxx
@@ -0,0 +1,93 @@
+// file      : cxx/tree/messaging/dom-parse.cxx
+// copyright : not copyrighted - public domain
+
+#include "dom-parse.hxx"
+
+#include <istream>
+
+#include <xercesc/dom/DOM.hpp>
+#include <xercesc/util/XMLUniDefs.hpp> // chLatin_*
+#include <xercesc/framework/Wrapper4InputSource.hpp>
+
+#include <xsd/cxx/xml/sax/std-input-source.hxx>
+#include <xsd/cxx/xml/dom/bits/error-handler-proxy.hxx>
+
+#include <xsd/cxx/tree/exceptions.hxx>
+#include <xsd/cxx/tree/error-handler.hxx>
+
+using namespace xercesc;
+namespace xml = xsd::cxx::xml;
+namespace tree = xsd::cxx::tree;
+
+xml::dom::unique_ptr<DOMDocument>
+parse (std::istream& is, const std::string& id, bool validate)
+{
+  const XMLCh ls_id [] = {chLatin_L, chLatin_S, chNull};
+
+  // Get an implementation of the Load-Store (LS) interface.
+  //
+  DOMImplementation* impl (
+    DOMImplementationRegistry::getDOMImplementation (ls_id));
+
+  xml::dom::unique_ptr<DOMLSParser> parser (
+    impl->createLSParser (DOMImplementationLS::MODE_SYNCHRONOUS, 0));
+
+  DOMConfiguration* conf (parser->getDomConfig ());
+
+  // Discard comment nodes in the document.
+  //
+  conf->setParameter (XMLUni::fgDOMComments, false);
+
+  // Enable datatype normalization.
+  //
+  conf->setParameter (XMLUni::fgDOMDatatypeNormalization, true);
+
+  // Do not create EntityReference nodes in the DOM tree. No
+  // EntityReference nodes will be created, only the nodes
+  // corresponding to their fully expanded substitution text
+  // will be created.
+  //
+  conf->setParameter (XMLUni::fgDOMEntities, false);
+
+  // Perform namespace processing.
+  //
+  conf->setParameter (XMLUni::fgDOMNamespaces, true);
+
+  // Do not include ignorable whitespace in the DOM tree.
+  //
+  conf->setParameter (XMLUni::fgDOMElementContentWhitespace, false);
+
+  // Enable/Disable validation.
+  //
+  conf->setParameter (XMLUni::fgDOMValidate, validate);
+  conf->setParameter (XMLUni::fgXercesSchema, validate);
+  conf->setParameter (XMLUni::fgXercesSchemaFullChecking, false);
+
+  // Xerces-C++ 3.1.0 is the first version with working multi import
+  // support.
+  //
+#if _XERCES_VERSION >= 30100
+  conf->setParameter (XMLUni::fgXercesHandleMultipleImports, true);
+#endif
+
+  // We will release the DOM document ourselves.
+  //
+  conf->setParameter (XMLUni::fgXercesUserAdoptsDOMDocument, true);
+
+  // Set error handler.
+  //
+  tree::error_handler<char> eh;
+  xml::dom::bits::error_handler_proxy<char> ehp (eh);
+  conf->setParameter (XMLUni::fgDOMErrorHandler, &ehp);
+
+  // Prepare input stream.
+  //
+  xml::sax::std_input_source isrc (is, id);
+  Wrapper4InputSource wrap (&isrc, false);
+
+  xml::dom::unique_ptr<DOMDocument> doc (parser->parse (&wrap));
+
+  eh.throw_if_failed<tree::parsing<char> > ();
+
+  return doc;
+}
diff --git a/xsd-examples/cxx/tree/messaging/dom-parse.hxx b/xsd-examples/cxx/tree/messaging/dom-parse.hxx
new file mode 100644
index 0000000..b73c52d
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/dom-parse.hxx
@@ -0,0 +1,22 @@
+// file      : cxx/tree/messaging/dom-parse.hxx
+// copyright : not copyrighted - public domain
+
+#ifndef DOM_PARSE
+#define DOM_PARSE
+
+#include <string>
+#include <iosfwd>
+
+#include <xercesc/dom/DOMDocument.hpp>
+#include <xsd/cxx/xml/dom/auto-ptr.hxx>
+
+// Parse an XML document from the standard input stream with an
+// optional resource id. Resource id is used in diagnostics as
+// well as to locate schemas referenced from inside the document.
+//
+xsd::cxx::xml::dom::unique_ptr<xercesc::DOMDocument>
+parse (std::istream& is,
+       const std::string& id,
+       bool validate);
+
+#endif // DOM_PARSE
diff --git a/xsd-examples/cxx/tree/messaging/dom-serialize.cxx b/xsd-examples/cxx/tree/messaging/dom-serialize.cxx
new file mode 100644
index 0000000..b32c5a2
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/dom-serialize.cxx
@@ -0,0 +1,64 @@
+// file      : cxx/tree/messaging/dom-serialize.cxx
+// copyright : not copyrighted - public domain
+
+#include "dom-serialize.hxx"
+
+#include <ostream>
+
+#include <xercesc/dom/DOM.hpp>
+#include <xercesc/util/XMLUniDefs.hpp>
+
+#include <xsd/cxx/xml/string.hxx>
+#include <xsd/cxx/xml/dom/auto-ptr.hxx>
+#include <xsd/cxx/xml/dom/serialization-source.hxx>
+#include <xsd/cxx/xml/dom/bits/error-handler-proxy.hxx>
+
+#include <xsd/cxx/tree/exceptions.hxx>
+#include <xsd/cxx/tree/error-handler.hxx>
+
+using namespace xercesc;
+namespace xml = xsd::cxx::xml;
+namespace tree = xsd::cxx::tree;
+
+void
+serialize (std::ostream& os,
+           const xercesc::DOMDocument& doc,
+           const std::string& encoding)
+{
+  const XMLCh ls_id [] = {chLatin_L, chLatin_S, chNull};
+
+  // Get an implementation of the Load-Store (LS) interface.
+  //
+  DOMImplementation* impl (
+    DOMImplementationRegistry::getDOMImplementation (ls_id));
+
+  tree::error_handler<char> eh;
+  xml::dom::bits::error_handler_proxy<char> ehp (eh);
+
+  xml::dom::ostream_format_target oft (os);
+
+  // Create a DOMSerializer.
+  //
+  xml::dom::unique_ptr<DOMLSSerializer> writer (
+    impl->createLSSerializer ());
+
+  DOMConfiguration* conf (writer->getDomConfig ());
+
+  // Set error handler.
+  //
+  conf->setParameter (XMLUni::fgDOMErrorHandler, &ehp);
+
+  // Set some generally nice features.
+  //
+  conf->setParameter (XMLUni::fgDOMWRTDiscardDefaultContent, true);
+  conf->setParameter (XMLUni::fgDOMWRTFormatPrettyPrint, true);
+  conf->setParameter (XMLUni::fgDOMWRTXercesPrettyPrint, false);
+
+  xml::dom::unique_ptr<DOMLSOutput> out (impl->createLSOutput ());
+  out->setEncoding (xml::string (encoding).c_str ());
+  out->setByteStream (&oft);
+
+  writer->write (&doc, out.get ());
+
+  eh.throw_if_failed<tree::serialization<char> > ();
+}
diff --git a/xsd-examples/cxx/tree/messaging/dom-serialize.hxx b/xsd-examples/cxx/tree/messaging/dom-serialize.hxx
new file mode 100644
index 0000000..bf1e290
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/dom-serialize.hxx
@@ -0,0 +1,20 @@
+// file      : cxx/tree/messaging/dom-serialize.hxx
+// copyright : not copyrighted - public domain
+
+#ifndef DOM_SERIALIZE
+#define DOM_SERIALIZE
+
+#include <string>
+#include <iosfwd>
+
+#include <xercesc/dom/DOMDocument.hpp>
+
+// Serialize a DOM document to XML which is written to the standard
+// output stream.
+//
+void
+serialize (std::ostream& os,
+           const xercesc::DOMDocument& doc,
+           const std::string& encoding = "UTF-8");
+
+#endif // DOM_SERIALIZE
diff --git a/xsd-examples/cxx/tree/messaging/driver.cxx b/xsd-examples/cxx/tree/messaging/driver.cxx
new file mode 100644
index 0000000..a358014
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/driver.cxx
@@ -0,0 +1,146 @@
+// file      : cxx/tree/messaging/driver.cxx
+// copyright : not copyrighted - public domain
+
+#include <memory>   // std::unique_ptr
+#include <string>
+#include <fstream>
+#include <typeinfo>
+#include <iostream>
+
+#include <xercesc/dom/DOM.hpp>
+#include <xercesc/util/PlatformUtils.hpp>
+
+#include <xsd/cxx/xml/string.hxx>
+
+#include "dom-parse.hxx"
+#include "dom-serialize.hxx"
+
+#include "protocol.hxx"
+
+using namespace std;
+using namespace protocol;
+using namespace xercesc;
+
+int
+main (int argc, char* argv[])
+{
+  if (argc != 2)
+  {
+    cerr << "usage: " << argv[0] << " request.xml" << endl;
+    return 1;
+  }
+
+  int r (0);
+
+  // We need to initialize the Xerces-C++ runtime because we
+  // are doing the XML-to-DOM parsing ourselves.
+  //
+  XMLPlatformUtils::Initialize ();
+
+  try
+  {
+    ifstream ifs;
+    ifs.exceptions (ifstream::badbit | ifstream::failbit);
+    ifs.open (argv[1]);
+
+    unique_ptr<xml_schema::element_type> req, res;
+
+    // Parse the XML request to a DOM document using the parse()
+    // function from dom-parse.hxx.
+    //
+    {
+      xml_schema::dom::unique_ptr<DOMDocument> doc (
+        parse (ifs, argv[1], true));
+
+      DOMElement& root (*doc->getDocumentElement ());
+
+      req = xml_schema::element_map::parse (root);
+    }
+
+    // We can test which request we've got either using RTTI or by
+    // comparing the element names, as shown below.
+    //
+    if (balance* b = dynamic_cast<balance*> (req.get ()))
+    {
+      account_t& a (b->value ());
+
+      cerr << "balance request for acc# " << a.account () << endl;
+
+      res.reset (new success (balance_t (a.account (), 1000)));
+    }
+    else if (req->_name () == withdraw::name ())
+    {
+      withdraw& w (static_cast<withdraw&> (*req));
+      change_t& c (w.value ());
+
+      wcerr << "withdrawal request for acc# " << c.account () << ", "
+            << "amount: " << c.amount () << endl;
+
+      if (c.amount () > 1000)
+        res.reset (new insufficient_funds (balance_t (c.account (), 1000)));
+      else
+        res.reset (new success (balance_t (c.account (), 1000 - c.amount ())));
+
+    }
+    else if (req->_name () == deposit::name ())
+    {
+      deposit& d (static_cast<deposit&> (*req));
+      change_t& c (d.value ());
+
+      wcerr << "deposit request for acc# " << c.account () << ", "
+            << "amount: " << c.amount () << endl;
+
+      res.reset (new success (balance_t (c.account (), 1000 + c.amount ())));
+    }
+
+    // Serialize the response to a DOM document.
+    //
+    namespace xml = xsd::cxx::xml;
+
+    const XMLCh ls_id [] = {chLatin_L, chLatin_S, chNull};
+
+    DOMImplementation* impl (
+      DOMImplementationRegistry::getDOMImplementation (ls_id));
+
+    const string& name (res->_name ());
+    const string& ns (res->_namespace ());
+
+    xml_schema::dom::unique_ptr<DOMDocument> doc (
+      impl->createDocument (
+        xml::string (ns).c_str (),
+        xml::string ("p:" + name).c_str (),
+        0));
+
+    xml_schema::element_map::serialize (*doc->getDocumentElement (), *res);
+
+    // Serialize the DOM document to XML using the serialize() function
+    // from dom-serialize.hxx.
+    //
+    cout << "response:" << endl
+         << endl;
+
+    serialize (cout, *doc);
+  }
+  catch (const xml_schema::no_element_info& e)
+  {
+    // This exception indicates that we tried to parse or serialize
+    // an unknown element.
+    //
+    cerr << "unknown request: " << e.element_namespace () << "#" <<
+      e.element_name () << endl;
+    r = 1;
+  }
+  catch (const xml_schema::exception& e)
+  {
+    cerr << e << endl;
+    r = 1;
+  }
+  catch (const std::ios_base::failure&)
+  {
+    cerr << argv[1] << ": unable to open or read failure" << endl;
+    r = 1;
+  }
+
+  XMLPlatformUtils::Terminate ();
+  return r;
+}
diff --git a/xsd-examples/cxx/tree/messaging/protocol.xsd b/xsd-examples/cxx/tree/messaging/protocol.xsd
new file mode 100644
index 0000000..4a28ac3
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/protocol.xsd
@@ -0,0 +1,53 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : cxx/tree/messaging/protocol.xsd
+copyright : not copyrighted - public domain
+
+-->
+
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+            xmlns:p="http://www.codesynthesis.com/protocol"
+            targetNamespace="http://www.codesynthesis.com/protocol">
+
+  <!-- types -->
+
+  <xsd:complexType name="account_t">
+    <xsd:sequence>
+      <xsd:element name="account" type="xsd:unsignedInt"/>
+    </xsd:sequence>
+  </xsd:complexType>
+
+  <xsd:complexType name="change_t">
+    <xsd:complexContent>
+      <xsd:extension base="p:account_t">
+        <xsd:sequence>
+          <xsd:element name="amount" type="xsd:unsignedInt"/>
+        </xsd:sequence>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+
+  <xsd:complexType name="balance_t">
+    <xsd:complexContent>
+      <xsd:extension base="p:account_t">
+        <xsd:sequence>
+          <xsd:element name="balance" type="xsd:unsignedInt"/>
+        </xsd:sequence>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+
+  <!-- request elements -->
+
+  <xsd:element name="balance" type="p:account_t"/>
+  <xsd:element name="withdraw" type="p:change_t"/>
+  <xsd:element name="deposit" type="p:change_t"/>
+
+  <!-- response elements -->
+
+  <xsd:element name="success" type="p:balance_t"/>
+  <xsd:element name="insufficient-funds" type="p:balance_t"/>
+
+</xsd:schema>
diff --git a/xsd-examples/cxx/tree/messaging/testscript b/xsd-examples/cxx/tree/messaging/testscript
new file mode 100644
index 0000000..c9df49f
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/testscript
@@ -0,0 +1,6 @@
+# file      : cxx/tree/messaging/testscript
+# license   : not copyrighted - public domain
+
+$* $src_base/balance.xml  >| 2>| : balance
+$* $src_base/withdraw.xml >| 2>| : withdraw
+$* $src_base/deposit.xml  >| 2>| : deposit
diff --git a/xsd-examples/cxx/tree/messaging/withdraw.xml b/xsd-examples/cxx/tree/messaging/withdraw.xml
new file mode 100644
index 0000000..e9ef526
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/withdraw.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : cxx/tree/messaging/withdraw.xml
+copyright : not copyrighted - public domain
+
+-->
+
+<p:withdraw xmlns:p="http://www.codesynthesis.com/protocol"
+            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	    xsi:schemaLocation="http://www.codesynthesis.com/protocol protocol.xsd">
+
+  <account>123456789</account>
+  <amount>1000000</amount>
+
+</p:withdraw>