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authordeva <deva>2008-05-06 15:27:40 +0000
committerdeva <deva>2008-05-06 15:27:40 +0000
commitc1bb76eeda86b16e8f00c5cb7ad2d31a1d94fe46 (patch)
tree2455925e201f546912a70e1aa742117e0d00a56d
parent27af2d0a32351de63977280e6deaa6d3aea8edd5 (diff)
Added experimental parser of the external data query XML results.
-rw-r--r--server/src/externaldataqueryparser.cc112
-rw-r--r--server/src/externaldataqueryparser.h58
2 files changed, 170 insertions, 0 deletions
diff --git a/server/src/externaldataqueryparser.cc b/server/src/externaldataqueryparser.cc
new file mode 100644
index 0000000..2de7fba
--- /dev/null
+++ b/server/src/externaldataqueryparser.cc
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * externaldataqueryparser.cc
+ *
+ * Tue May 6 17:02:37 CEST 2008
+ * Copyright 2008 Bent Bisballe Nyeng, Lars Bisballe Jensen and Peter Skaarup
+ * deva@aasimon.org, elsenator@gmail.com and piparum@piparum.dk
+ ****************************************************************************/
+
+/*
+ * This file is part of Pracro.
+ *
+ * Pracro 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.
+ *
+ * Pracro 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. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Pracro; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "externaldataqueryparser.h"
+
+ExternalDataQueryParser::ExternalDataQueryParser(std::string document)
+{
+ this->document = document;
+ p = 0;
+ stack.push_back(&result);
+}
+
+void ExternalDataQueryParser::startTag(std::string name, std::map< std::string, std::string> attributes)
+{
+
+ if(name == "group") {
+ QueryResult q;
+ stack.back()->groups[attributes["name"]] = q;
+ stack.push_back(&stack.back()->groups[attributes["name"]]);
+ }
+
+ if(name == "value") {
+ stack.back()->values[attributes["name"]] = attributes["value"];
+ }
+
+}
+
+void ExternalDataQueryParser::endTag(std::string name)
+{
+ if(name == "group") stack.pop_back();
+}
+
+// FIXME: This is *not* the optimal way to do this.
+int ExternalDataQueryParser::readData(char *data, size_t size)
+{
+ size_t len = document.size() - p < size ? document.size() - p : size;
+ strncpy(data, document.c_str() + p, len);
+ p += len;
+ return len;
+}
+
+#ifdef TEST_EXTERNALDATAQUERYPARSER
+
+static std::string loadresultstring(QueryResult &res, std::string group = "")
+{
+ std::string s;
+
+ std::map< std::string, std::string >::iterator v = res.values.begin();
+ while(v != res.values.end()) {
+ s += group + (*v).first + " = \"" + (*v).second + "\"\n";
+ v++;
+ }
+
+ std::map< std::string, QueryResult >::iterator g = res.groups.begin();
+ while(g != res.groups.end()) {
+ s += group + (*g).first + " = {}\n";
+ s += loadresultstring((*g).second, group + (*g).first + ".");
+ g++;
+ }
+
+ return s;
+}
+
+char xml[] =
+ "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+ "<group name=\"dims\">\n"
+ " <value name=\"fisk\" value=\"42\"/>"
+ " <value name=\"futte\" value=\"bamse\"/>"
+ " <group name=\"dims2\">\n"
+ " <value name=\"fisk2\" value=\"42\"/>"
+ " <value name=\"futte2\" value=\"bamse\"/>"
+ " </group>\n"
+ " <group name=\"dims3\">\n"
+ " <value name=\"fisk3\" value=\"42\"/>"
+ " <value name=\"futte3\" value=\"bamse\"/>"
+ " </group>\n"
+ "</group>\n";
+
+int main()
+{
+ ExternalDataQueryParser e(xml);
+ e.parse();
+
+ printf("%s\n", loadresultstring(e.result).c_str());
+
+ return 0;
+}
+
+#endif
diff --git a/server/src/externaldataqueryparser.h b/server/src/externaldataqueryparser.h
new file mode 100644
index 0000000..1b760de
--- /dev/null
+++ b/server/src/externaldataqueryparser.h
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * externaldataqueryparser.h
+ *
+ * Tue May 6 17:02:36 CEST 2008
+ * Copyright 2008 Bent Bisballe Nyeng, Lars Bisballe Jensen and Peter Skaarup
+ * deva@aasimon.org, elsenator@gmail.com and piparum@piparum.dk
+ ****************************************************************************/
+
+/*
+ * This file is part of Pracro.
+ *
+ * Pracro 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.
+ *
+ * Pracro 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. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Pracro; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef __PRACRO_EXTERNALDATAQUERYPARSER_H__
+#define __PRACRO_EXTERNALDATAQUERYPARSER_H__
+
+#include "queryresult.h"
+#include "sax_parser.h"
+
+#include <vector>
+
+/**
+ * This class parses xml entyties into a QueryResult structure.
+ */
+class ExternalDataQueryParser : public SAXParser {
+public:
+ ExternalDataQueryParser(std::string document);
+
+ void startTag(std::string name, std::map< std::string, std::string> attributes);
+ void endTag(std::string name);
+
+ QueryResult result;
+
+protected:
+ int readData(char *data, size_t size);
+
+private:
+ // For read
+ int p;
+ std::string document;
+
+ std::vector< QueryResult * > stack;
+};
+
+#endif/*__PRACRO_EXTERNALDATAQUERYPARSER_H__*/