* Storage Service using ODBC
*/
-#if defined (_MSC_VER) || defined(__BORLANDC__)\r
-# include "config_win32.h"\r
-#else\r
-# include "config.h"\r
-#endif\r
-\r
-#ifdef WIN32\r
-# define _CRT_NONSTDC_NO_DEPRECATE 1\r
-# define _CRT_SECURE_NO_DEPRECATE 1\r
-#endif\r
+#if defined (_MSC_VER) || defined(__BORLANDC__)
+# include "config_win32.h"
+#else
+# include "config.h"
+#endif
+
+#ifdef WIN32
+# define _CRT_NONSTDC_NO_DEPRECATE 1
+# define _CRT_SECURE_NO_DEPRECATE 1
+#endif
#ifdef WIN32
# define ODBCSTORE_EXPORTS __declspec(dllexport)
# define ODBCSTORE_EXPORTS
#endif
-#include <log4cpp/Category.hh>
#include <xercesc/util/XMLUniDefs.hpp>
+#include <xmltooling/logging.h>
#include <xmltooling/XMLToolingConfig.h>
#include <xmltooling/util/NDC.h>
#include <xmltooling/util/StorageService.h>
#include <sql.h>
#include <sqlext.h>
+using namespace xmltooling::logging;
using namespace xmltooling;
using namespace xercesc;
-using namespace log4cpp;
using namespace std;
#define PLUGIN_VER_MAJOR 1
#define LONGDATA_BUFLEN 16384
-#define COLSIZE_KEY 255
#define COLSIZE_CONTEXT 255
+#define COLSIZE_ID 255
#define COLSIZE_STRING_VALUE 255
-#define STRING_TABLE "STRING_TABLE"
-#define TEXT_TABLE "TEXT_TABLE"
-
-/* tables definitions - not used here
-
-#define STRING_TABLE \
- "CREATE TABLE STRING_TABLE ( " \
- "context varchar(255), " \
- "key varchar(255), " \
- "value varchar(255), " \
- "expires datetime, " \
- "version smallint, " \
- "PRIMARY KEY (context, key)" \
- ")"
-
-
-#define TEXT_TABLE \
- "CREATE TABLE TEXT_TABLE ( "\
- "context varchar(255), " \
- "key varchar(255), " \
- "value text, " \
- "expires datetime, " \
- "version smallint, " \
- "PRIMARY KEY (context, key)" \
- ")"
+#define STRING_TABLE "strings"
+#define TEXT_TABLE "texts"
+
+/* table definitions
+CREATE TABLE version (
+ major tinyint NOT NULL,
+ minor tinyint NOT NULL
+ )
+
+CREATE TABLE strings (
+ context varchar(255) not null,
+ id varchar(255) not null,
+ expires datetime not null,
+ version smallint not null,
+ value varchar(255) not null,
+ PRIMARY KEY (context, id)
+ )
+
+CREATE TABLE texts (
+ context varchar(255) not null,
+ id varchar(255) not null,
+ expires datetime not null,
+ version smallint not null,
+ value text not null,
+ PRIMARY KEY (context, id)
+ )
*/
namespace {
ODBCConn(SQLHDBC conn) : handle(conn) {}
~ODBCConn() {
SQLRETURN sr = SQLEndTran(SQL_HANDLE_DBC, handle, SQL_COMMIT);
+ SQLDisconnect(handle);
SQLFreeHandle(SQL_HANDLE_DBC,handle);
if (!SQL_SUCCEEDED(sr))
throw IOException("Failed to commit connection.");
ODBCStorageService(const DOMElement* e);
virtual ~ODBCStorageService();
- void createString(const char* context, const char* key, const char* value, time_t expiration) {
+ bool createString(const char* context, const char* key, const char* value, time_t expiration) {
return createRow(STRING_TABLE, context, key, value, expiration);
}
int readString(const char* context, const char* key, string* pvalue=NULL, time_t* pexpiration=NULL, int version=0) {
return deleteRow(STRING_TABLE, context, key);
}
- void createText(const char* context, const char* key, const char* value, time_t expiration) {
+ bool createText(const char* context, const char* key, const char* value, time_t expiration) {
return createRow(TEXT_TABLE, context, key, value, expiration);
}
int readText(const char* context, const char* key, string* pvalue=NULL, time_t* pexpiration=NULL, int version=0) {
private:
- void createRow(const char *table, const char* context, const char* key, const char* value, time_t expiration);
+ bool createRow(const char *table, const char* context, const char* key, const char* value, time_t expiration);
int readRow(const char *table, const char* context, const char* key, string* pvalue, time_t* pexpiration, int version, bool text);
int updateRow(const char *table, const char* context, const char* key, const char* value, time_t expiration, int version);
bool deleteRow(const char *table, const char* context, const char* key);
SQLHDBC getHDBC();
SQLHSTMT getHSTMT(SQLHDBC);
pair<int,int> getVersion(SQLHDBC);
- void log_error(SQLHANDLE handle, SQLSMALLINT htype);
+ bool log_error(SQLHANDLE handle, SQLSMALLINT htype, const char* checkfor=NULL);
static void* cleanup_fn(void*);
void cleanup();
char *s;
// see if any conversion needed
- for (s=(char*)src; *s; nc++,s++) if (*s=='\''||*s=='\\') ns++;
+ for (s=(char*)src; *s; nc++,s++) if (*s=='\'') ns++;
if (ns==0) return ((char*)src);
char *safe = new char[(nc+2*ns+1)];
for (s=safe; *src; src++) {
- if (*src=='\''||*src=='\\') *s++ = '\\';
+ if (*src=='\'') *s++ = '\'';
*s++ = (char)*src;
}
*s = '\0';
SQLFreeHandle(SQL_HANDLE_ENV, m_henv);
}
-void ODBCStorageService::log_error(SQLHANDLE handle, SQLSMALLINT htype)
+bool ODBCStorageService::log_error(SQLHANDLE handle, SQLSMALLINT htype, const char* checkfor)
{
SQLSMALLINT i = 0;
SQLINTEGER native;
SQLSMALLINT len;
SQLRETURN ret;
+ bool res = false;
do {
ret = SQLGetDiagRec(htype, handle, ++i, state, &native, text, sizeof(text), &len);
- if (SQL_SUCCEEDED(ret))
+ if (SQL_SUCCEEDED(ret)) {
m_log.error("ODBC Error: %s:%ld:%ld:%s", state, i, native, text);
+ if (checkfor && !strcmp(checkfor, (const char*)state))
+ res = true;
+ }
} while(SQL_SUCCEEDED(ret));
+ return res;
}
SQLHDBC ODBCStorageService::getHDBC()
throw IOException("ODBC StorageService failed to read version from database.");
}
-void ODBCStorageService::createRow(const char *table, const char* context, const char* key, const char* value, time_t expiration)
+bool ODBCStorageService::createRow(const char* table, const char* context, const char* key, const char* value, time_t expiration)
{
#ifdef _DEBUG
xmltooling::NDC ndc("createRow");
ODBCStatement stmt(getHSTMT(conn));
// Prepare and exectute insert statement.
- char *scontext = makeSafeSQL(context);
- char *skey = makeSafeSQL(key);
- char *svalue = makeSafeSQL(value);
- string q = string("INSERT ") + table + " VALUES ('" + scontext + "','" + skey + "','" + svalue + "'," + timebuf + "', 1)";
- freeSafeSQL(scontext, context);
- freeSafeSQL(skey, key);
- freeSafeSQL(svalue, value);
- m_log.debug("SQL: %s", q.c_str());
+ //char *scontext = makeSafeSQL(context);
+ //char *skey = makeSafeSQL(key);
+ //char *svalue = makeSafeSQL(value);
+ string q = string("INSERT INTO ") + table + " VALUES (?,?," + timebuf + ",1,?)";
- SQLRETURN sr=SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ SQLRETURN sr = SQLPrepare(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
if (!SQL_SUCCEEDED(sr)) {
- m_log.error("insert record failed (t=%s, c=%s, k=%s)", table, context, key);
+ m_log.error("SQLPrepare failed (t=%s, c=%s, k=%s)", table, context, key);
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to insert record.");
+ }
+ m_log.debug("SQLPrepare() succeded. SQL: %s", q.c_str());
+
+ SQLINTEGER b_ind = SQL_NTS;
+ sr = SQLBindParam(stmt, 1, SQL_C_CHAR, SQL_VARCHAR, 0, 0, const_cast<char*>(context), &b_ind);
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("SQLBindParam failed (context = %s)", context);
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to insert record.");
+ }
+ m_log.debug("SQLBindParam succeded (context = %s)", context);
+
+ sr = SQLBindParam(stmt, 2, SQL_C_CHAR, SQL_VARCHAR, 0, 0, const_cast<char*>(key), &b_ind);
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("SQLBindParam failed (key = %s)", key);
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to insert record.");
+ }
+ m_log.debug("SQLBindParam succeded (key = %s)", key);
+
+ sr = SQLBindParam(stmt, 3, SQL_C_CHAR, (strcmp(table, TEXT_TABLE)==0 ? SQL_LONGVARCHAR : SQL_VARCHAR), 0, 0, const_cast<char*>(value), &b_ind);
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("SQLBindParam failed (value = %s)", value);
log_error(stmt, SQL_HANDLE_STMT);
throw IOException("ODBC StorageService failed to insert record.");
}
+ m_log.debug("SQLBindParam succeded (value = %s)", value);
+
+ //freeSafeSQL(scontext, context);
+ //freeSafeSQL(skey, key);
+ //freeSafeSQL(svalue, value);
+ //m_log.debug("SQL: %s", q.c_str());
+
+ sr=SQLExecute(stmt);
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("insert record failed (t=%s, c=%s, k=%s)", table, context, key);
+ if (log_error(stmt, SQL_HANDLE_STMT, "23000"))
+ return false; // supposedly integrity violation?
+ throw IOException("ODBC StorageService failed to insert record.");
+ }
+ return true;
}
int ODBCStorageService::readRow(
xmltooling::NDC ndc("readRow");
#endif
- SQLCHAR *tvalue = NULL;
-
// Get statement handle.
ODBCConn conn(getHDBC());
ODBCStatement stmt(getHSTMT(conn));
// Prepare and exectute select statement.
+ char timebuf[32];
+ timestampFromTime(time(NULL), timebuf);
char *scontext = makeSafeSQL(context);
char *skey = makeSafeSQL(key);
- string q("SELECT version");
+ ostringstream q;
+ q << "SELECT version";
if (pexpiration)
- q += ",expires";
+ q << ",expires";
if (pvalue)
- q += ",value";
- q = q + " FROM " + table + " WHERE context='" + scontext + "' AND key='" + skey + "' AND expires > NOW()";
+ q << ",CASE version WHEN " << version << " THEN NULL ELSE value END";
+ q << " FROM " << table << " WHERE context='" << scontext << "' AND id='" << skey << "' AND expires > " << timebuf;
freeSafeSQL(scontext, context);
freeSafeSQL(skey, key);
- m_log.debug("SQL: %s", q.c_str());
+ if (m_log.isDebugEnabled())
+ m_log.debug("SQL: %s", q.str().c_str());
- SQLRETURN sr=SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ SQLRETURN sr=SQLExecDirect(stmt, (SQLCHAR*)q.str().c_str(), SQL_NTS);
if (!SQL_SUCCEEDED(sr)) {
m_log.error("error searching for (t=%s, c=%s, k=%s)", table, context, key);
log_error(stmt, SQL_HANDLE_STMT);
return version; // nothing's changed, so just echo back the version
if (pvalue) {
- SQLINTEGER len;\r
- SQLCHAR buf[LONGDATA_BUFLEN];\r
- while ((sr=SQLGetData(stmt,pexpiration ? 3 : 2,SQL_C_CHAR,buf,sizeof(buf),&len)) != SQL_NO_DATA) {\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("error while reading text field from result set");\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService search failed to read data from result set.");\r
- }\r
- pvalue->append((char*)buf);\r
- }\r
+ SQLINTEGER len;
+ SQLCHAR buf[LONGDATA_BUFLEN];
+ while ((sr=SQLGetData(stmt,pexpiration ? 3 : 2,SQL_C_CHAR,buf,sizeof(buf),&len)) != SQL_NO_DATA) {
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("error while reading text field from result set");
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService search failed to read data from result set.");
+ }
+ pvalue->append((char*)buf);
+ }
}
return ver;
ODBCStatement stmt(getHSTMT(conn));
// First, fetch the current version for later, which also ensures the record still exists.
+ char timebuf[32];
+ timestampFromTime(time(NULL), timebuf);
char *scontext = makeSafeSQL(context);
char *skey = makeSafeSQL(key);
string q("SELECT version FROM ");
- q = q + table + " WHERE context='" + scontext + "' AND key='" + key + "' AND expires > NOW()";
+ q = q + table + " WHERE context='" + scontext + "' AND id='" + key + "' AND expires > " + timebuf;
m_log.debug("SQL: %s", q.c_str());
// Prepare and exectute update statement.
q = string("UPDATE ") + table + " SET ";
- if (value) {
- char *svalue = makeSafeSQL(value);
- q = q + "value='" + svalue + "'" + ",version=version+1";
- freeSafeSQL(svalue, value);
- }
+ if (value)
+ q = q + "value=?, version=version+1";
if (expiration) {
- char timebuf[32];
timestampFromTime(expiration, timebuf);
if (value)
q += ',';
- q = q + "expires = '" + timebuf + "' ";
+ q = q + "expires = " + timebuf;
}
- q = q + " WHERE context='" + scontext + "' AND key='" + key + "'";
+ q = q + " WHERE context='" + scontext + "' AND id='" + key + "'";
freeSafeSQL(scontext, context);
freeSafeSQL(skey, key);
- m_log.debug("SQL: %s", q.c_str());
- sr=SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ sr = SQLPrepare(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("update of record failed (t=%s, c=%s, k=%s", table, context, key);
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to update record.");
+ }
+ m_log.debug("SQLPrepare() succeded. SQL: %s", q.c_str());
+
+ SQLINTEGER b_ind = SQL_NTS;
+ if (value) {
+ sr = SQLBindParam(stmt, 1, SQL_C_CHAR, (strcmp(table, TEXT_TABLE)==0 ? SQL_LONGVARCHAR : SQL_VARCHAR), 0, 0, const_cast<char*>(value), &b_ind);
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("SQLBindParam failed (context = %s)", context);
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to update record.");
+ }
+ m_log.debug("SQLBindParam succeded (context = %s)", context);
+ }
+
+ sr=SQLExecute(stmt);
if (sr==SQL_NO_DATA)
return 0; // went missing?
else if (!SQL_SUCCEEDED(sr)) {
// Prepare and execute delete statement.
char *scontext = makeSafeSQL(context);
char *skey = makeSafeSQL(key);
- string q = string("DELETE FROM ") + table + " WHERE context='" + scontext + "' AND key='" + skey + "'";
+ string q = string("DELETE FROM ") + table + " WHERE context='" + scontext + "' AND id='" + skey + "'";
freeSafeSQL(scontext, context);
freeSafeSQL(skey, key);
m_log.debug("SQL: %s", q.c_str());
char timebuf[32];
timestampFromTime(expiration, timebuf);
+ char nowbuf[32];
+ timestampFromTime(time(NULL), nowbuf);
+
char *scontext = makeSafeSQL(context);
string q("UPDATE ");
- q = q + table + " SET expires = '" + timebuf + "' WHERE context='" + scontext + "' AND expires > NOW()";
+ q = q + table + " SET expires = " + timebuf + " WHERE context='" + scontext + "' AND expires > " + nowbuf;
freeSafeSQL(scontext, context);
m_log.debug("SQL: %s", q.c_str());
ODBCStatement stmt(getHSTMT(conn));
// Prepare and execute delete statement.
+ char nowbuf[32];
+ timestampFromTime(time(NULL), nowbuf);
string q;
if (context) {
char *scontext = makeSafeSQL(context);
- q = string("DELETE FROM ") + table + " WHERE context='" + scontext + "' AND expires <= NOW()";
+ q = string("DELETE FROM ") + table + " WHERE context='" + scontext + "' AND expires <= " + nowbuf;
freeSafeSQL(scontext, context);
}
else {
- q = string("DELETE FROM ") + table + " WHERE expires <= NOW()";
+ q = string("DELETE FROM ") + table + " WHERE expires <= " + nowbuf;
}
m_log.debug("SQL: %s", q.c_str());
}
}
-extern "C" int ODBCSTORE_EXPORTS xmltooling_extension_init(void*)\r
-{\r
- // Register this SS type\r
- XMLToolingConfig::getConfig().StorageServiceManager.registerFactory("ODBC", ODBCStorageServiceFactory);\r
- return 0;\r
-}\r
-\r
-extern "C" void ODBCSTORE_EXPORTS xmltooling_extension_term()\r
-{\r
- XMLToolingConfig::getConfig().StorageServiceManager.deregisterFactory("ODBC");\r
-}\r
+extern "C" int ODBCSTORE_EXPORTS xmltooling_extension_init(void*)
+{
+ // Register this SS type
+ XMLToolingConfig::getConfig().StorageServiceManager.registerFactory("ODBC", ODBCStorageServiceFactory);
+ return 0;
+}
+
+extern "C" void ODBCSTORE_EXPORTS xmltooling_extension_term()
+{
+ XMLToolingConfig::getConfig().StorageServiceManager.deregisterFactory("ODBC");
+}