| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| |
| /* |
| * $Id$ |
| */ |
| |
| |
| /** |
| * This sample program illustrates how one can use a memory buffer as the |
| * input to parser. The memory buffer contains raw bytes representing XML |
| * statements. |
| * |
| * Look at the API documentation for 'MemBufInputSource' for more information |
| * on parameters to the constructor. |
| * |
| */ |
| |
| |
| // --------------------------------------------------------------------------- |
| // Includes |
| // --------------------------------------------------------------------------- |
| #include <xercesc/parsers/SAXParser.hpp> |
| #include <xercesc/framework/MemBufInputSource.hpp> |
| #include "MemParse.hpp" |
| #include <xercesc/util/OutOfMemoryException.hpp> |
| |
| // --------------------------------------------------------------------------- |
| // Local const data |
| // |
| // gXMLInMemBuf |
| // Defines the memory buffer contents here which parsed by the XML |
| // parser. This is the cheap way to do it, instead of reading it from |
| // somewhere. For this demo, its fine. |
| // |
| // NOTE: If your encoding is not ascii you will need to change |
| // the MEMPARSE_ENCODING #define |
| // |
| // gMemBufId |
| // A simple name to give as the system id for the memory buffer. This |
| // just for indentification purposes in case of errors. Its not a real |
| // system id (and the parser knows that.) |
| // --------------------------------------------------------------------------- |
| |
| #ifndef MEMPARSE_ENCODING |
| #if defined(OS390) |
| #define MEMPARSE_ENCODING "ibm-1047-s390" |
| #elif defined(OS400) |
| #define MEMPARSE_ENCODING "ibm037" |
| #else |
| #define MEMPARSE_ENCODING "ascii" |
| #endif |
| #endif /* ifndef MEMPARSE_ENCODING */ |
| |
| static const char* gXMLInMemBuf = |
| "\ |
| <?xml version='1.0' encoding='" MEMPARSE_ENCODING "'?>\n\ |
| <!DOCTYPE company [\n\ |
| <!ELEMENT company (product,category,developedAt)>\n\ |
| <!ELEMENT product (#PCDATA)>\n\ |
| <!ELEMENT category (#PCDATA)>\n\ |
| <!ATTLIST category idea CDATA #IMPLIED>\n\ |
| <!ELEMENT developedAt (#PCDATA)>\n\ |
| ]>\n\n\ |
| <company>\n\ |
| <product>XML4C</product>\n\ |
| <category idea='great'>XML Parsing Tools</category>\n\ |
| <developedAt>\n\ |
| IBM Center for Java Technology, Silicon Valley, Cupertino, CA\n\ |
| </developedAt>\n\ |
| </company>\ |
| "; |
| |
| static const char* gMemBufId = "prodInfo"; |
| |
| |
| |
| // --------------------------------------------------------------------------- |
| // Local helper methods |
| // --------------------------------------------------------------------------- |
| void usage() |
| { |
| std::cout << "\nUsage:\n" |
| " MemParse [options]\n\n" |
| "This program uses the SAX Parser to parse a memory buffer\n" |
| "containing XML statements, and reports the number of\n" |
| "elements and attributes found.\n\n" |
| "Options:\n" |
| " -v=xxx Validation scheme [always | never | auto*].\n" |
| " -n Enable namespace processing. Defaults to off.\n" |
| " -s Enable schema processing. Defaults to off.\n" |
| " -f Enable full schema constraint checking. Defaults to off.\n" |
| " -? Show this help.\n\n" |
| " * = Default if not provided explicitly.\n" |
| << std::endl; |
| } |
| |
| |
| // --------------------------------------------------------------------------- |
| // Program entry point |
| // --------------------------------------------------------------------------- |
| int main(int argC, char* argV[]) |
| { |
| // Initialize the XML4C2 system |
| try |
| { |
| XMLPlatformUtils::Initialize(); |
| } |
| catch (const XMLException& toCatch) |
| { |
| std::cerr << "Error during initialization! Message:\n" |
| << StrX(toCatch.getMessage()) << std::endl; |
| return 1; |
| } |
| |
| SAXParser::ValSchemes valScheme = SAXParser::Val_Auto; |
| bool doNamespaces = false; |
| bool doSchema = false; |
| bool schemaFullChecking = false; |
| |
| int argInd; |
| for (argInd = 1; argInd < argC; argInd++) |
| { |
| // Break out on first parm not starting with a dash |
| if (argV[argInd][0] != '-') |
| { |
| usage(); |
| XMLPlatformUtils::Terminate(); |
| return 1; |
| } |
| |
| // Watch for special case help request |
| if (!strcmp(argV[argInd], "-?")) |
| { |
| usage(); |
| XMLPlatformUtils::Terminate(); |
| return 1; |
| } |
| else if (!strncmp(argV[argInd], "-v=", 3) |
| || !strncmp(argV[argInd], "-V=", 3)) |
| { |
| const char* const parm = &argV[argInd][3]; |
| |
| if (!strcmp(parm, "never")) |
| valScheme = SAXParser::Val_Never; |
| else if (!strcmp(parm, "auto")) |
| valScheme = SAXParser::Val_Auto; |
| else if (!strcmp(parm, "always")) |
| valScheme = SAXParser::Val_Always; |
| else |
| { |
| std::cerr << "Unknown -v= value: " << parm << std::endl; |
| return 2; |
| } |
| } |
| else if (!strcmp(argV[argInd], "-n") |
| || !strcmp(argV[argInd], "-N")) |
| { |
| doNamespaces = true; |
| } |
| else if (!strcmp(argV[argInd], "-s") |
| || !strcmp(argV[argInd], "-S")) |
| { |
| doSchema = true; |
| } |
| else if (!strcmp(argV[argInd], "-f") |
| || !strcmp(argV[argInd], "-F")) |
| { |
| schemaFullChecking = true; |
| } |
| else |
| { |
| std::cerr << "Unknown option '" << argV[argInd] |
| << "', ignoring it\n" << std::endl; |
| } |
| } |
| |
| // |
| // Create a SAX parser object. Then, according to what we were told on |
| // the command line, set it to validate or not. |
| // |
| SAXParser* parser = new SAXParser; |
| parser->setValidationScheme(valScheme); |
| parser->setDoNamespaces(doNamespaces); |
| parser->setDoSchema(doSchema); |
| parser->setHandleMultipleImports (true); |
| parser->setValidationSchemaFullChecking(schemaFullChecking); |
| |
| // |
| // Create our SAX handler object and install it on the parser, as the |
| // document and error handlers. |
| // |
| MemParseHandlers handler; |
| parser->setDocumentHandler(&handler); |
| parser->setErrorHandler(&handler); |
| |
| // |
| // Create MemBufferInputSource from the buffer containing the XML |
| // statements. |
| // |
| // NOTE: We are using strlen() here, since we know that the chars in |
| // our hard coded buffer are single byte chars!!! The parameter wants |
| // the number of BYTES, not chars, so when you create a memory buffer |
| // give it the byte size (which just happens to be the same here.) |
| // |
| MemBufInputSource* memBufIS = new MemBufInputSource |
| ( |
| (const XMLByte*)gXMLInMemBuf |
| , strlen(gXMLInMemBuf) |
| , gMemBufId |
| , false |
| ); |
| |
| // |
| // Get the starting time and kick off the parse of the indicated |
| // file. Catch any exceptions that might propogate out of it. |
| // |
| unsigned long duration; |
| int errorCount = 0; |
| int errorCode = 0; |
| try |
| { |
| const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis(); |
| parser->parse(*memBufIS); |
| const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis(); |
| duration = endMillis - startMillis; |
| errorCount = parser->getErrorCount(); |
| } |
| catch (const OutOfMemoryException&) |
| { |
| std::cerr << "OutOfMemoryException" << std::endl; |
| errorCode = 5; |
| } |
| catch (const XMLException& e) |
| { |
| std::cerr << "\nError during parsing memory stream:\n" |
| << "Exception message is: \n" |
| << StrX(e.getMessage()) << "\n" << std::endl; |
| errorCode = 4; |
| } |
| if(errorCode) { |
| XMLPlatformUtils::Terminate(); |
| return errorCode; |
| } |
| |
| // Print out the stats that we collected and time taken. |
| if (!errorCount) { |
| std::cout << "\nFinished parsing the memory buffer containing the following " |
| << "XML statements:\n\n" |
| << gXMLInMemBuf |
| << "\n\n\n" |
| << "Parsing took " << duration << " ms (" |
| << handler.getElementCount() << " elements, " |
| << handler.getAttrCount() << " attributes, " |
| << handler.getSpaceCount() << " spaces, " |
| << handler.getCharacterCount() << " characters).\n" << std::endl; |
| } |
| |
| // |
| // Delete the parser itself. Must be done prior to calling Terminate, below. |
| // |
| delete parser; |
| |
| delete memBufIS; |
| |
| // And call the termination method |
| XMLPlatformUtils::Terminate(); |
| |
| if (errorCount > 0) |
| return 4; |
| else |
| return 0; |
| } |
