| /* |
| * 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 demonstrates the progressive parse capabilities of |
| // the parser system. It allows you to do a scanFirst() call followed by |
| // a loop which calls scanNext(). You can drop out when you've found what |
| // ever it is you want. In our little test, our event handler looks for |
| // 16 new elements then sets a flag to indicate its found what it wants. |
| // At that point, our progressive parse loop below exits. |
| // |
| // The parameters are: |
| // |
| // [-?] - Show usage and exit |
| // [-v=xxx] - Validation scheme [always | never | auto*] |
| // [-n] - Enable namespace processing |
| // [-s] - Enable schema processing |
| // [-f] - Enable full schema constraint checking |
| // filename - The path to the XML file to parse |
| // |
| // * = Default if not provided explicitly |
| // These are non-case sensitive |
| // --------------------------------------------------------------------------- |
| |
| |
| // --------------------------------------------------------------------------- |
| // Includes |
| // --------------------------------------------------------------------------- |
| #include <xercesc/util/PlatformUtils.hpp> |
| #include <xercesc/framework/XMLPScanToken.hpp> |
| #include <xercesc/parsers/SAXParser.hpp> |
| #include "PParse.hpp" |
| #include <xercesc/util/OutOfMemoryException.hpp> |
| |
| // --------------------------------------------------------------------------- |
| // Local data |
| // |
| // xmlFile |
| // The path to the file to parser. Set via command line. |
| // |
| // doNamespaces |
| // Indicates whether namespace processing should be done. |
| // |
| // doSchema |
| // Indicates whether schema processing should be done. |
| // |
| // schemaFullChecking |
| // Indicates whether full schema constraint checking should be done. |
| // |
| // valScheme |
| // Indicates what validation scheme to use. It defaults to 'auto', but |
| // can be set via the -v= command. |
| // --------------------------------------------------------------------------- |
| static char* xmlFile = 0; |
| static bool doNamespaces = false; |
| static bool doSchema = false; |
| static bool schemaFullChecking = false; |
| static SAXParser::ValSchemes valScheme = SAXParser::Val_Auto; |
| |
| |
| |
| // --------------------------------------------------------------------------- |
| // Local helper methods |
| // --------------------------------------------------------------------------- |
| static void usage() |
| { |
| std::cout << "\nUsage:\n" |
| " PParse [options] <XML file>\n\n" |
| "This program demonstrates the progressive parse capabilities of\n" |
| "the parser system. It allows you to do a scanFirst() call followed by\n" |
| "a loop which calls scanNext(). You can drop out when you've found what\n" |
| "ever it is you want. In our little test, our event handler looks for\n" |
| "16 new elements then sets a flag to indicate its found what it wants.\n" |
| "At that point, our progressive parse loop exits.\n\n" |
| "Options:\n" |
| " -v=xxx - Validation scheme [always | never | auto*].\n" |
| " -n - Enable namespace processing [default is off].\n" |
| " -s - Enable schema processing [default is off].\n" |
| " -f - Enable full schema constraint checking [default is 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 XML4C system |
| try |
| { |
| XMLPlatformUtils::Initialize(); |
| } |
| |
| catch (const XMLException& toCatch) |
| { |
| std::cerr << "Error during initialization! :\n" |
| << StrX(toCatch.getMessage()) << std::endl; |
| return 1; |
| } |
| |
| // Check command line and extract arguments. |
| if (argC < 2) |
| { |
| usage(); |
| XMLPlatformUtils::Terminate(); |
| return 1; |
| } |
| |
| // See if non validating dom parser configuration is requested. |
| int parmInd; |
| for (parmInd = 1; parmInd < argC; parmInd++) |
| { |
| // Break out on first parm not starting with a dash |
| if (argV[parmInd][0] != '-') |
| break; |
| |
| // Watch for special case help request |
| if (!strcmp(argV[parmInd], "-?")) |
| { |
| usage(); |
| XMLPlatformUtils::Terminate(); |
| return 2; |
| } |
| else if (!strncmp(argV[parmInd], "-v=", 3) |
| || !strncmp(argV[parmInd], "-V=", 3)) |
| { |
| const char* const parm = &argV[parmInd][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; |
| XMLPlatformUtils::Terminate(); |
| return 2; |
| } |
| } |
| else if (!strcmp(argV[parmInd], "-n") |
| || !strcmp(argV[parmInd], "-N")) |
| { |
| doNamespaces = true; |
| } |
| else if (!strcmp(argV[parmInd], "-s") |
| || !strcmp(argV[parmInd], "-S")) |
| { |
| doSchema = true; |
| } |
| else if (!strcmp(argV[parmInd], "-f") |
| || !strcmp(argV[parmInd], "-F")) |
| { |
| schemaFullChecking = true; |
| } |
| else |
| { |
| std::cerr << "Unknown option '" << argV[parmInd] |
| << "', ignoring it\n" << std::endl; |
| } |
| } |
| |
| // |
| // And now we have to have only one parameter left and it must be |
| // the file name. |
| // |
| if (parmInd + 1 != argC) |
| { |
| usage(); |
| XMLPlatformUtils::Terminate(); |
| return 1; |
| } |
| xmlFile = argV[parmInd]; |
| int errorCount = 0; |
| |
| // |
| // Create a SAX parser object to use and create our SAX event handlers |
| // and plug them in. |
| // |
| SAXParser* parser = new SAXParser; |
| PParseHandlers handler; |
| parser->setDocumentHandler(&handler); |
| parser->setErrorHandler(&handler); |
| parser->setValidationScheme(valScheme); |
| parser->setDoNamespaces(doNamespaces); |
| parser->setDoSchema(doSchema); |
| parser->setHandleMultipleImports (true); |
| parser->setValidationSchemaFullChecking(schemaFullChecking); |
| |
| // |
| // Ok, lets do the progressive parse loop. On each time around the |
| // loop, we look and see if the handler has found what its looking |
| // for. When it does, we fall out then. |
| // |
| unsigned long duration; |
| int errorCode = 0; |
| try |
| { |
| // Create a progressive scan token |
| XMLPScanToken token; |
| |
| const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis(); |
| if (!parser->parseFirst(xmlFile, token)) |
| { |
| std::cerr << "scanFirst() failed\n" << std::endl; |
| XMLPlatformUtils::Terminate(); |
| return 1; |
| } |
| |
| // |
| // We started ok, so lets call scanNext() until we find what we want |
| // or hit the end. |
| // |
| bool gotMore = true; |
| while (gotMore && !parser->getErrorCount()) |
| gotMore = parser->parseNext(token); |
| |
| const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis(); |
| duration = endMillis - startMillis; |
| |
| errorCount = parser->getErrorCount(); |
| // |
| // Reset the parser-> In this simple progrma, since we just exit |
| // now, its not technically required. But, in programs which |
| // would remain open, you should reset after a progressive parse |
| // in case you broke out before the end of the file. This insures |
| // that all opened files, sockets, etc... are closed. |
| // |
| parser->parseReset(token); |
| } |
| catch (const OutOfMemoryException&) |
| { |
| std::cerr << "OutOfMemoryException" << std::endl; |
| errorCode = 5; |
| } |
| catch (const XMLException& toCatch) |
| { |
| std::cerr << "\nAn error occurred: '" << xmlFile << "'\n" |
| << "Exception message is: \n" |
| << StrX(toCatch.getMessage()) |
| << "\n" << std::endl; |
| errorCode = 4; |
| } |
| |
| if(errorCode) { |
| XMLPlatformUtils::Terminate(); |
| return errorCode; |
| } |
| |
| if (!errorCount) { |
| std::cout << xmlFile << ": " << duration << " ms (" |
| << handler.getElementCount() << " elems, " |
| << handler.getAttrCount() << " attrs, " |
| << handler.getSpaceCount() << " spaces, " |
| << handler.getCharacterCount() << " chars)" << std::endl; |
| } |
| |
| // |
| // Delete the parser itself. Must be done prior to calling Terminate, below. |
| // |
| delete parser; |
| |
| // And call the termination method |
| XMLPlatformUtils::Terminate(); |
| |
| if (errorCount > 0) |
| return 4; |
| else |
| return 0; |
| } |
