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authorKaren Arutyunov <karen@codesynthesis.com>2020-12-18 18:48:46 +0300
committerKaren Arutyunov <karen@codesynthesis.com>2021-02-25 13:45:48 +0300
commit5e527213a2430bb3018e5eebd909aef294edf9b5 (patch)
tree94de33c82080b53d9a9e300170f6d221d89078f4 /xsd-examples/cxx/tree/caching
parent7420f85ea19b0562ffdd8123442f32bc8bac1267 (diff)
Switch to build2
Diffstat (limited to 'xsd-examples/cxx/tree/caching')
-rw-r--r--xsd-examples/cxx/tree/caching/.gitignore1
-rw-r--r--xsd-examples/cxx/tree/caching/README29
-rw-r--r--xsd-examples/cxx/tree/caching/buildfile27
-rw-r--r--xsd-examples/cxx/tree/caching/driver.cxx165
-rw-r--r--xsd-examples/cxx/tree/caching/library.xml52
-rw-r--r--xsd-examples/cxx/tree/caching/library.xsd72
6 files changed, 346 insertions, 0 deletions
diff --git a/xsd-examples/cxx/tree/caching/.gitignore b/xsd-examples/cxx/tree/caching/.gitignore
new file mode 100644
index 0000000..c116ec1
--- /dev/null
+++ b/xsd-examples/cxx/tree/caching/.gitignore
@@ -0,0 +1 @@
+library.?xx
diff --git a/xsd-examples/cxx/tree/caching/README b/xsd-examples/cxx/tree/caching/README
new file mode 100644
index 0000000..64dffb3
--- /dev/null
+++ b/xsd-examples/cxx/tree/caching/README
@@ -0,0 +1,29 @@
+This example shows how to use the C++/Tree mapping to parse several
+XML documents while reusing the underlying XML parser and caching the
+schemas used for validation.
+
+The example consists of the following files:
+
+library.xsd
+ XML Schema which describes a library of books.
+
+library.xml
+ Sample XML instance document.
+
+library.hxx
+library.cxx
+ C++ types that represent the given vocabulary and a set of parsing
+ functions that convert XML instance documents to a tree-like in-memory
+ object model. These are generated by XSD from library.xsd.
+
+driver.cxx
+ Driver for the example. It first sets up the Xerces-C++ DOM parser
+ and caches the library.xsd schema for validation. It then performs
+ ten iterations that parse the input file to a DOM document using
+ the DOM parser and call one of the parsing functions that constructs
+ the object model from this DOM document. On each iteration the driver
+ prints a number of books in the object model to STDERR.
+
+To run the example on the sample XML instance document simply execute:
+
+$ ./driver library.xml library.xsd
diff --git a/xsd-examples/cxx/tree/caching/buildfile b/xsd-examples/cxx/tree/caching/buildfile
new file mode 100644
index 0000000..cb369b7
--- /dev/null
+++ b/xsd-examples/cxx/tree/caching/buildfile
@@ -0,0 +1,27 @@
+# file : cxx/tree/caching/buildfile
+# license : not copyrighted - public domain
+
+import libs = libxsd%lib{xsd}
+import libs += libxerces-c%lib{xerces-c}
+
+./: exe{driver} doc{README}
+
+exe{driver}: {hxx cxx}{* -library} {hxx ixx cxx}{library} $libs
+
+exe{driver}: {xml xsd}{library}: test.input = true
+
+<{hxx ixx cxx}{library}>: xsd{library} $xsd
+{{
+ diag xsd ($<[0]) # @@ TMP
+
+ $xsd cxx-tree --std c++11 \
+ --generate-inline \
+ --output-dir $out_base \
+ $path($<[0])
+}}
+
+cxx.poptions =+ "-I$out_base"
+
+# Define XSD_CXX11 since we include libxsd headers directly.
+#
+cxx.poptions += -DXSD_CXX11
diff --git a/xsd-examples/cxx/tree/caching/driver.cxx b/xsd-examples/cxx/tree/caching/driver.cxx
new file mode 100644
index 0000000..9cabbd4
--- /dev/null
+++ b/xsd-examples/cxx/tree/caching/driver.cxx
@@ -0,0 +1,165 @@
+// file : cxx/tree/caching/driver.cxx
+// copyright : not copyrighted - public domain
+
+#include <memory> // std::unique_ptr
+#include <fstream>
+#include <iostream>
+
+#include <xercesc/dom/DOM.hpp>
+#include <xercesc/util/XMLUniDefs.hpp> // chLatin_*
+#include <xercesc/util/PlatformUtils.hpp>
+#include <xercesc/validators/common/Grammar.hpp> // xercesc::Grammar
+#include <xercesc/framework/Wrapper4InputSource.hpp>
+
+#include <xsd/cxx/xml/dom/auto-ptr.hxx>
+#include <xsd/cxx/xml/dom/bits/error-handler-proxy.hxx>
+#include <xsd/cxx/xml/sax/std-input-source.hxx>
+
+#include <xsd/cxx/tree/error-handler.hxx>
+
+#include "library.hxx"
+
+using namespace std;
+
+int
+main (int argc, char* argv[])
+{
+ if (argc != 3)
+ {
+ cerr << "usage: " << argv[0] << " library.xml library.xsd" << endl;
+ return 1;
+ }
+
+ int r (0);
+
+ // We need to initialize the Xerces-C++ runtime because we
+ // are doing the XML-to-DOM parsing ourselves.
+ //
+ xercesc::XMLPlatformUtils::Initialize ();
+
+ try
+ {
+ using namespace xercesc;
+ namespace xml = xsd::cxx::xml;
+ namespace tree = xsd::cxx::tree;
+
+ 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 validation.
+ //
+ conf->setParameter (XMLUni::fgDOMValidate, true);
+ conf->setParameter (XMLUni::fgXercesSchema, true);
+ 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
+
+ // Set error handler.
+ //
+ tree::error_handler<char> eh;
+ xml::dom::bits::error_handler_proxy<char> ehp (eh);
+ conf->setParameter (XMLUni::fgDOMErrorHandler, &ehp);
+
+ // Initialize the schema cache.
+ //
+ if (!parser->loadGrammar (argv[2], Grammar::SchemaGrammarType, true))
+ {
+ // In Xerces-C++ grammar loading failure results in just a warning.
+ // Make it a fatal error.
+ //
+ eh.handle (argv[2], 0, 0,
+ tree::error_handler<char>::severity::fatal,
+ "unable to load schema");
+ }
+
+ eh.throw_if_failed<xml_schema::parsing> ();
+
+ // Use the loaded grammar during parsing.
+ //
+ conf->setParameter (XMLUni::fgXercesUseCachedGrammarInParse, true);
+
+ // Disable loading schemas via other means (e.g., schemaLocation).
+ //
+ conf->setParameter (XMLUni::fgXercesLoadSchema, false);
+
+ // We will release the DOM document ourselves.
+ //
+ conf->setParameter (XMLUni::fgXercesUserAdoptsDOMDocument, true);
+
+ // Parse XML documents.
+ //
+ for (unsigned long i (0); i < 10; ++i)
+ {
+ ifstream ifs;
+ ifs.exceptions (ifstream::badbit | ifstream::failbit);
+ ifs.open (argv[1]);
+
+ // Wrap the standard input stream.
+ //
+ xml::sax::std_input_source isrc (ifs, argv[1]);
+ Wrapper4InputSource wrap (&isrc, false);
+
+ // Parse XML to DOM.
+ //
+ xml_schema::dom::unique_ptr<DOMDocument> doc (parser->parse (&wrap));
+
+ eh.throw_if_failed<xml_schema::parsing> ();
+
+ // Parse DOM to the object model.
+ //
+ unique_ptr<library::catalog> c (library::catalog_ (*doc));
+
+ cerr << "catalog with " << c->book ().size () << " books" << endl;
+ }
+ }
+ 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;
+ }
+
+ xercesc::XMLPlatformUtils::Terminate ();
+ return r;
+}
diff --git a/xsd-examples/cxx/tree/caching/library.xml b/xsd-examples/cxx/tree/caching/library.xml
new file mode 100644
index 0000000..b36786f
--- /dev/null
+++ b/xsd-examples/cxx/tree/caching/library.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0"?>
+
+<!--
+
+file : cxx/tree/caching/library.xml
+copyright : not copyrighted - public domain
+
+-->
+
+<lib:catalog xmlns:lib="http://www.codesynthesis.com/library"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://www.codesynthesis.com/library library.xsd">
+
+ <book id="MM" available="false">
+ <isbn>0679760806</isbn>
+ <title>The Master and Margarita</title>
+ <genre>fiction</genre>
+
+ <author recommends="WP">
+ <name>Mikhail Bulgakov</name>
+ <born>1891-05-15</born>
+ <died>1940-03-10</died>
+ </author>
+ </book>
+
+
+ <book id="WP">
+ <isbn>0679600841</isbn>
+ <title>War and Peace</title>
+ <genre>history</genre>
+
+ <author recommends="CP">
+ <name>Leo Tolstoy</name>
+ <born>1828-09-09</born>
+ <died>1910-11-20</died>
+ </author>
+ </book>
+
+
+ <book id="CP" available="false">
+ <isbn>0679420290</isbn>
+ <title>Crime and Punishment</title>
+ <genre>philosophy</genre>
+
+ <author>
+ <name>Fyodor Dostoevsky</name>
+ <born>1821-11-11</born>
+ <died>1881-02-09</died>
+ </author>
+ </book>
+
+</lib:catalog>
diff --git a/xsd-examples/cxx/tree/caching/library.xsd b/xsd-examples/cxx/tree/caching/library.xsd
new file mode 100644
index 0000000..2dd5037
--- /dev/null
+++ b/xsd-examples/cxx/tree/caching/library.xsd
@@ -0,0 +1,72 @@
+<?xml version="1.0"?>
+
+<!--
+
+file : cxx/tree/caching/library.xsd
+copyright : not copyrighted - public domain
+
+-->
+
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+ xmlns:xse="http://www.codesynthesis.com/xmlns/xml-schema-extension"
+ xmlns:lib="http://www.codesynthesis.com/library"
+ targetNamespace="http://www.codesynthesis.com/library">
+
+ <xsd:simpleType name="isbn">
+ <xsd:restriction base="xsd:unsignedInt"/>
+ </xsd:simpleType>
+
+ <xsd:complexType name="title">
+ <xsd:simpleContent>
+ <xsd:extension base="xsd:string">
+ <xsd:attribute name="lang" type="xsd:language"/>
+ </xsd:extension>
+ </xsd:simpleContent>
+ </xsd:complexType>
+
+ <xsd:simpleType name="genre">
+ <xsd:restriction base="xsd:string">
+ <xsd:enumeration value="romance"/>
+ <xsd:enumeration value="fiction"/>
+ <xsd:enumeration value="horror"/>
+ <xsd:enumeration value="history"/>
+ <xsd:enumeration value="philosophy"/>
+ </xsd:restriction>
+ </xsd:simpleType>
+
+ <xsd:complexType name="person">
+ <xsd:sequence>
+ <xsd:element name="name" type="xsd:string"/>
+ <xsd:element name="born" type="xsd:date"/>
+ <xsd:element name="died" type="xsd:date" minOccurs="0"/>
+ </xsd:sequence>
+ </xsd:complexType>
+
+ <xsd:complexType name="author">
+ <xsd:complexContent>
+ <xsd:extension base="lib:person">
+ <xsd:attribute name="recommends" type="xsd:IDREF" xse:refType="lib:book"/>
+ </xsd:extension>
+ </xsd:complexContent>
+ </xsd:complexType>
+
+ <xsd:complexType name="book">
+ <xsd:sequence>
+ <xsd:element name="isbn" type="lib:isbn"/>
+ <xsd:element name="title" type="lib:title"/>
+ <xsd:element name="genre" type="lib:genre"/>
+ <xsd:element name="author" type="lib:author" maxOccurs="unbounded"/>
+ </xsd:sequence>
+ <xsd:attribute name="available" type="xsd:boolean" default="true"/>
+ <xsd:attribute name="id" type="xsd:ID" use="required"/>
+ </xsd:complexType>
+
+ <xsd:complexType name="catalog">
+ <xsd:sequence>
+ <xsd:element name="book" type="lib:book" maxOccurs="unbounded"/>
+ </xsd:sequence>
+ </xsd:complexType>
+
+ <xsd:element name="catalog" type="lib:catalog"/>
+
+</xsd:schema>