-/**\r
- * Licensed to the University Corporation for Advanced Internet\r
- * Development, Inc. (UCAID) under one or more contributor license\r
- * agreements. See the NOTICE file distributed with this work for\r
- * additional information regarding copyright ownership.\r
- *\r
- * UCAID licenses this file to you under the Apache License,\r
- * Version 2.0 (the "License"); you may not use this file except\r
- * in compliance with the License. You may obtain a copy of the\r
- * License at\r
- *\r
- * http://www.apache.org/licenses/LICENSE-2.0\r
- *\r
- * Unless required by applicable law or agreed to in writing,\r
- * software distributed under the License is distributed on an\r
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,\r
- * either express or implied. See the License for the specific\r
- * language governing permissions and limitations under the License.\r
- */\r
-\r
-/**\r
- * odbc-store.cpp\r
- *\r
- * Storage Service using ODBC.\r
- */\r
-\r
-#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
-\r
-#ifdef WIN32\r
-# define ODBCSTORE_EXPORTS __declspec(dllexport)\r
-#else\r
-# define ODBCSTORE_EXPORTS\r
-#endif\r
-\r
-#include <xmltooling/logging.h>\r
-#include <xmltooling/unicode.h>\r
-#include <xmltooling/XMLToolingConfig.h>\r
-#include <xmltooling/util/NDC.h>\r
-#include <xmltooling/util/StorageService.h>\r
-#include <xmltooling/util/Threads.h>\r
-#include <xmltooling/util/XMLHelper.h>\r
-#include <xercesc/util/XMLUniDefs.hpp>\r
-\r
-#include <sql.h>\r
-#include <sqlext.h>\r
-\r
-#include <boost/lexical_cast.hpp>\r
-#include <boost/algorithm/string.hpp>\r
-\r
-using namespace xmltooling::logging;\r
-using namespace xmltooling;\r
-using namespace xercesc;\r
-using namespace boost;\r
-using namespace std;\r
-\r
-#define PLUGIN_VER_MAJOR 1\r
-#define PLUGIN_VER_MINOR 1\r
-\r
-#define LONGDATA_BUFLEN 16384\r
-\r
-#define COLSIZE_CONTEXT 255\r
-#define COLSIZE_ID 255\r
-#define COLSIZE_STRING_VALUE 255\r
-\r
-#define STRING_TABLE "strings"\r
-#define TEXT_TABLE "texts"\r
-\r
-/* table definitions\r
-CREATE TABLE version (\r
- major int NOT nullptr,\r
- minor int NOT nullptr\r
- )\r
-\r
-CREATE TABLE strings (\r
- context varchar(255) not null,\r
- id varchar(255) not null,\r
- expires datetime not null,\r
- version int not null,\r
- value varchar(255) not null,\r
- PRIMARY KEY (context, id)\r
- )\r
-\r
-CREATE TABLE texts (\r
- context varchar(255) not null,\r
- id varchar(255) not null,\r
- expires datetime not null,\r
- version int not null,\r
- value text not null,\r
- PRIMARY KEY (context, id)\r
- )\r
-*/\r
-\r
-namespace {\r
- static const XMLCh cleanupInterval[] = UNICODE_LITERAL_15(c,l,e,a,n,u,p,I,n,t,e,r,v,a,l);\r
- static const XMLCh isolationLevel[] = UNICODE_LITERAL_14(i,s,o,l,a,t,i,o,n,L,e,v,e,l);\r
- static const XMLCh ConnectionString[] = UNICODE_LITERAL_16(C,o,n,n,e,c,t,i,o,n,S,t,r,i,n,g);\r
- static const XMLCh RetryOnError[] = UNICODE_LITERAL_12(R,e,t,r,y,O,n,E,r,r,o,r);\r
- static const XMLCh contextSize[] = UNICODE_LITERAL_11(c,o,n,t,e,x,t,S,i,z,e);\r
- static const XMLCh keySize[] = UNICODE_LITERAL_7(k,e,y,S,i,z,e);\r
- static const XMLCh stringSize[] = UNICODE_LITERAL_10(s,t,r,i,n,g,S,i,z,e);\r
-\r
- // RAII for ODBC handles\r
- struct ODBCConn {\r
- ODBCConn(SQLHDBC conn) : handle(conn), autoCommit(true) {}\r
- ~ODBCConn() {\r
- if (handle != SQL_NULL_HDBC) {\r
- SQLRETURN sr = SQL_SUCCESS;\r
- if (!autoCommit)\r
- sr = SQLSetConnectAttr(handle, SQL_ATTR_AUTOCOMMIT, (SQLPOINTER)SQL_AUTOCOMMIT_ON, 0);\r
- SQLDisconnect(handle);\r
- SQLFreeHandle(SQL_HANDLE_DBC, handle);\r
- if (!SQL_SUCCEEDED(sr))\r
- throw IOException("Failed to commit connection and return to auto-commit mode.");\r
- }\r
- }\r
- operator SQLHDBC() {return handle;}\r
- SQLHDBC handle;\r
- bool autoCommit;\r
- };\r
-\r
- class ODBCStorageService : public StorageService\r
- {\r
- public:\r
- ODBCStorageService(const DOMElement* e);\r
- virtual ~ODBCStorageService();\r
-\r
- const Capabilities& getCapabilities() const {\r
- return m_caps;\r
- }\r
-\r
- bool createString(const char* context, const char* key, const char* value, time_t expiration) {\r
- return createRow(STRING_TABLE, context, key, value, expiration);\r
- }\r
- int readString(const char* context, const char* key, string* pvalue=nullptr, time_t* pexpiration=nullptr, int version=0) {\r
- return readRow(STRING_TABLE, context, key, pvalue, pexpiration, version);\r
- }\r
- int updateString(const char* context, const char* key, const char* value=nullptr, time_t expiration=0, int version=0) {\r
- return updateRow(STRING_TABLE, context, key, value, expiration, version);\r
- }\r
- bool deleteString(const char* context, const char* key) {\r
- return deleteRow(STRING_TABLE, context, key);\r
- }\r
-\r
- bool createText(const char* context, const char* key, const char* value, time_t expiration) {\r
- return createRow(TEXT_TABLE, context, key, value, expiration);\r
- }\r
- int readText(const char* context, const char* key, string* pvalue=nullptr, time_t* pexpiration=nullptr, int version=0) {\r
- return readRow(TEXT_TABLE, context, key, pvalue, pexpiration, version);\r
- }\r
- int updateText(const char* context, const char* key, const char* value=nullptr, time_t expiration=0, int version=0) {\r
- return updateRow(TEXT_TABLE, context, key, value, expiration, version);\r
- }\r
- bool deleteText(const char* context, const char* key) {\r
- return deleteRow(TEXT_TABLE, context, key);\r
- }\r
-\r
- void reap(const char* context) {\r
- reap(STRING_TABLE, context);\r
- reap(TEXT_TABLE, context);\r
- }\r
-\r
- void updateContext(const char* context, time_t expiration) {\r
- updateContext(STRING_TABLE, context, expiration);\r
- updateContext(TEXT_TABLE, context, expiration);\r
- }\r
-\r
- void deleteContext(const char* context) {\r
- deleteContext(STRING_TABLE, context);\r
- deleteContext(TEXT_TABLE, context);\r
- }\r
- \r
-\r
- private:\r
- bool createRow(const char *table, const char* context, const char* key, const char* value, time_t expiration);\r
- int readRow(const char *table, const char* context, const char* key, string* pvalue, time_t* pexpiration, int version);\r
- int updateRow(const char *table, const char* context, const char* key, const char* value, time_t expiration, int version);\r
- bool deleteRow(const char *table, const char* context, const char* key);\r
-\r
- void reap(const char* table, const char* context);\r
- void updateContext(const char* table, const char* context, time_t expiration);\r
- void deleteContext(const char* table, const char* context);\r
-\r
- SQLHDBC getHDBC();\r
- SQLHSTMT getHSTMT(SQLHDBC);\r
- pair<SQLINTEGER,SQLINTEGER> getVersion(SQLHDBC);\r
- pair<bool,bool> log_error(SQLHANDLE handle, SQLSMALLINT htype, const char* checkfor=nullptr);\r
-\r
- static void* cleanup_fn(void*); \r
- void cleanup();\r
-\r
- Category& m_log;\r
- Capabilities m_caps;\r
- int m_cleanupInterval;\r
- scoped_ptr<CondWait> shutdown_wait;\r
- Thread* cleanup_thread;\r
- bool shutdown;\r
-\r
- SQLHENV m_henv;\r
- string m_connstring;\r
- long m_isolation;\r
- bool m_wideVersion;\r
- vector<SQLINTEGER> m_retries;\r
- };\r
-\r
- StorageService* ODBCStorageServiceFactory(const DOMElement* const & e)\r
- {\r
- return new ODBCStorageService(e);\r
- }\r
-\r
- // convert SQL timestamp to time_t \r
- time_t timeFromTimestamp(SQL_TIMESTAMP_STRUCT expires)\r
- {\r
- time_t ret;\r
- struct tm t;\r
- t.tm_sec=expires.second;\r
- t.tm_min=expires.minute;\r
- t.tm_hour=expires.hour;\r
- t.tm_mday=expires.day;\r
- t.tm_mon=expires.month-1;\r
- t.tm_year=expires.year-1900;\r
- t.tm_isdst=0;\r
-#if defined(HAVE_TIMEGM)\r
- ret = timegm(&t);\r
-#else\r
- ret = mktime(&t) - timezone;\r
-#endif\r
- return (ret);\r
- }\r
-\r
- // conver time_t to SQL string\r
- void timestampFromTime(time_t t, char* ret)\r
- {\r
-#ifdef HAVE_GMTIME_R\r
- struct tm res;\r
- struct tm* ptime=gmtime_r(&t,&res);\r
-#else\r
- struct tm* ptime=gmtime(&t);\r
-#endif\r
- strftime(ret,32,"{ts '%Y-%m-%d %H:%M:%S'}",ptime);\r
- }\r
-\r
- class SQLString {\r
- const char* m_src;\r
- string m_copy;\r
- public:\r
- SQLString(const char* src) : m_src(src) {\r
- if (strchr(src, '\'')) {\r
- m_copy = src;\r
- replace_all(m_copy, "'", "''");\r
- }\r
- }\r
-\r
- operator const char*() const {\r
- return tostr();\r
- }\r
-\r
- const char* tostr() const {\r
- return m_copy.empty() ? m_src : m_copy.c_str();\r
- }\r
- };\r
-};\r
-\r
-ODBCStorageService::ODBCStorageService(const DOMElement* e) : m_log(Category::getInstance("XMLTooling.StorageService")),\r
- m_caps(XMLHelper::getAttrInt(e, 255, contextSize), XMLHelper::getAttrInt(e, 255, keySize), XMLHelper::getAttrInt(e, 255, stringSize)),\r
- m_cleanupInterval(XMLHelper::getAttrInt(e, 900, cleanupInterval)),\r
- cleanup_thread(nullptr), shutdown(false), m_henv(SQL_NULL_HENV), m_isolation(SQL_TXN_SERIALIZABLE), m_wideVersion(false)\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("ODBCStorageService");\r
-#endif\r
- string iso(XMLHelper::getAttrString(e, "SERIALIZABLE", isolationLevel));\r
- if (iso == "SERIALIZABLE")\r
- m_isolation = SQL_TXN_SERIALIZABLE;\r
- else if (iso == "REPEATABLE_READ")\r
- m_isolation = SQL_TXN_REPEATABLE_READ;\r
- else if (iso == "READ_COMMITTED")\r
- m_isolation = SQL_TXN_READ_COMMITTED;\r
- else if (iso == "READ_UNCOMMITTED")\r
- m_isolation = SQL_TXN_READ_UNCOMMITTED;\r
- else\r
- throw XMLToolingException("Unknown transaction isolationLevel property.");\r
-\r
- if (m_henv == SQL_NULL_HENV) {\r
- // Enable connection pooling.\r
- SQLSetEnvAttr(SQL_NULL_HANDLE, SQL_ATTR_CONNECTION_POOLING, (void*)SQL_CP_ONE_PER_HENV, 0);\r
-\r
- // Allocate the environment.\r
- if (!SQL_SUCCEEDED(SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &m_henv)))\r
- throw XMLToolingException("ODBC failed to initialize.");\r
-\r
- // Specify ODBC 3.x\r
- SQLSetEnvAttr(m_henv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0);\r
-\r
- m_log.info("ODBC initialized");\r
- }\r
-\r
- // Grab connection string from the configuration.\r
- e = e ? XMLHelper::getFirstChildElement(e, ConnectionString) : nullptr;\r
- auto_ptr_char arg(e ? e->getTextContent() : nullptr);\r
- if (!arg.get() || !*arg.get()) {\r
- SQLFreeHandle(SQL_HANDLE_ENV, m_henv);\r
- throw XMLToolingException("ODBC StorageService requires ConnectionString element in configuration.");\r
- }\r
- m_connstring = arg.get();\r
-\r
- // Connect and check version.\r
- ODBCConn conn(getHDBC());\r
- pair<SQLINTEGER,SQLINTEGER> v = getVersion(conn);\r
-\r
- // Make sure we've got the right version.\r
- if (v.first != PLUGIN_VER_MAJOR) {\r
- SQLFreeHandle(SQL_HANDLE_ENV, m_henv);\r
- m_log.crit("unknown database version: %d.%d", v.first, v.second);\r
- throw XMLToolingException("Unknown database version for ODBC StorageService.");\r
- }\r
- \r
- if (v.first > 1 || v.second > 0) {\r
- m_log.info("using 32-bit int type for version fields in tables");\r
- m_wideVersion = true;\r
- }\r
-\r
- // Load any retry errors to check.\r
- e = XMLHelper::getNextSiblingElement(e, RetryOnError);\r
- while (e) {\r
- if (e->hasChildNodes()) {\r
- try {\r
- int code = XMLString::parseInt(e->getTextContent());\r
- m_retries.push_back(code);\r
- m_log.info("will retry operations when native ODBC error (%d) is returned", code);\r
- }\r
- catch (XMLException&) {\r
- m_log.error("skipping non-numeric ODBC retry code");\r
- }\r
- }\r
- e = XMLHelper::getNextSiblingElement(e, RetryOnError);\r
- }\r
-\r
- if (m_cleanupInterval > 0) {\r
- // Initialize the cleanup thread\r
- shutdown_wait.reset(CondWait::create());\r
- cleanup_thread = Thread::create(&cleanup_fn, (void*)this);\r
- }\r
- else {\r
- m_log.info("no cleanup interval configured, no cleanup thread will be started");\r
- }\r
-}\r
-\r
-ODBCStorageService::~ODBCStorageService()\r
-{\r
- shutdown = true;\r
- if (shutdown_wait.get()) {\r
- shutdown_wait->signal();\r
- }\r
- if (cleanup_thread) {\r
- cleanup_thread->join(nullptr);\r
- }\r
- if (m_henv != SQL_NULL_HANDLE) {\r
- SQLFreeHandle(SQL_HANDLE_ENV, m_henv);\r
- }\r
-}\r
-\r
-pair<bool,bool> ODBCStorageService::log_error(SQLHANDLE handle, SQLSMALLINT htype, const char* checkfor)\r
-{\r
- SQLSMALLINT i = 0;\r
- SQLINTEGER native;\r
- SQLCHAR state[7];\r
- SQLCHAR text[256];\r
- SQLSMALLINT len;\r
- SQLRETURN ret;\r
-\r
- pair<bool,bool> res = make_pair(false,false);\r
- do {\r
- ret = SQLGetDiagRec(htype, handle, ++i, state, &native, text, sizeof(text), &len);\r
- if (SQL_SUCCEEDED(ret)) {\r
- m_log.error("ODBC Error: %s:%ld:%ld:%s", state, i, native, text);\r
- for (vector<SQLINTEGER>::const_iterator n = m_retries.begin(); !res.first && n != m_retries.end(); ++n)\r
- res.first = (*n == native);\r
- if (checkfor && !strcmp(checkfor, (const char*)state))\r
- res.second = true;\r
- }\r
- } while(SQL_SUCCEEDED(ret));\r
- return res;\r
-}\r
-\r
-SQLHDBC ODBCStorageService::getHDBC()\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("getHDBC");\r
-#endif\r
-\r
- // Get a handle.\r
- SQLHDBC handle = SQL_NULL_HDBC;\r
- SQLRETURN sr = SQLAllocHandle(SQL_HANDLE_DBC, m_henv, &handle);\r
- if (!SQL_SUCCEEDED(sr) || handle == SQL_NULL_HDBC) {\r
- m_log.error("failed to allocate connection handle");\r
- log_error(m_henv, SQL_HANDLE_ENV);\r
- throw IOException("ODBC StorageService failed to allocate a connection handle.");\r
- }\r
-\r
- sr = SQLDriverConnect(handle,nullptr,(SQLCHAR*)m_connstring.c_str(),m_connstring.length(),nullptr,0,nullptr,SQL_DRIVER_NOPROMPT);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("failed to connect to database");\r
- log_error(handle, SQL_HANDLE_DBC);\r
- SQLFreeHandle(SQL_HANDLE_DBC, handle);\r
- throw IOException("ODBC StorageService failed to connect to database.");\r
- }\r
-\r
- sr = SQLSetConnectAttr(handle, SQL_ATTR_TXN_ISOLATION, (SQLPOINTER)m_isolation, 0);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- SQLDisconnect(handle);\r
- SQLFreeHandle(SQL_HANDLE_DBC, handle);\r
- throw IOException("ODBC StorageService failed to set transaction isolation level.");\r
- }\r
-\r
- return handle;\r
-}\r
-\r
-SQLHSTMT ODBCStorageService::getHSTMT(SQLHDBC conn)\r
-{\r
- SQLHSTMT hstmt = SQL_NULL_HSTMT;\r
- SQLRETURN sr = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);\r
- if (!SQL_SUCCEEDED(sr) || hstmt == SQL_NULL_HSTMT) {\r
- m_log.error("failed to allocate statement handle");\r
- log_error(conn, SQL_HANDLE_DBC);\r
- throw IOException("ODBC StorageService failed to allocate a statement handle.");\r
- }\r
- return hstmt;\r
-}\r
-\r
-pair<SQLINTEGER,SQLINTEGER> ODBCStorageService::getVersion(SQLHDBC conn)\r
-{\r
- // Grab the version number from the database.\r
- SQLHSTMT stmt = getHSTMT(conn);\r
- \r
- SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)"SELECT major,minor FROM version", SQL_NTS);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("failed to read version from database");\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to read version from database.");\r
- }\r
-\r
- SQLINTEGER major;\r
- SQLINTEGER minor;\r
- SQLBindCol(stmt, 1, SQL_C_SLONG, &major, 0, nullptr);\r
- SQLBindCol(stmt, 2, SQL_C_SLONG, &minor, 0, nullptr);\r
-\r
- if ((sr = SQLFetch(stmt)) != SQL_NO_DATA)\r
- return make_pair(major,minor);\r
-\r
- m_log.error("no rows returned in version query");\r
- throw IOException("ODBC StorageService failed to read version from database.");\r
-}\r
-\r
-bool ODBCStorageService::createRow(const char* table, const char* context, const char* key, const char* value, time_t expiration)\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("createRow");\r
-#endif\r
-\r
- char timebuf[32];\r
- timestampFromTime(expiration, timebuf);\r
-\r
- // Get statement handle.\r
- ODBCConn conn(getHDBC());\r
- SQLHSTMT stmt = getHSTMT(conn);\r
-\r
- string q = string("INSERT INTO ") + table + " VALUES (?,?," + timebuf + ",1,?)";\r
-\r
- SQLRETURN sr = SQLPrepare(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("SQLPrepare failed (t=%s, c=%s, k=%s)", table, context, key);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to insert record.");\r
- }\r
- m_log.debug("SQLPrepare succeeded. SQL: %s", q.c_str());\r
-\r
- SQLLEN b_ind = SQL_NTS;\r
- sr = SQLBindParam(stmt, 1, SQL_C_CHAR, SQL_VARCHAR, 255, 0, const_cast<char*>(context), &b_ind);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("SQLBindParam failed (context = %s)", context);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to insert record.");\r
- }\r
- m_log.debug("SQLBindParam succeeded (context = %s)", context);\r
-\r
- sr = SQLBindParam(stmt, 2, SQL_C_CHAR, SQL_VARCHAR, 255, 0, const_cast<char*>(key), &b_ind);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("SQLBindParam failed (key = %s)", key);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to insert record.");\r
- }\r
- m_log.debug("SQLBindParam succeeded (key = %s)", key);\r
-\r
- if (strcmp(table, TEXT_TABLE)==0)\r
- sr = SQLBindParam(stmt, 3, SQL_C_CHAR, SQL_LONGVARCHAR, strlen(value), 0, const_cast<char*>(value), &b_ind);\r
- else\r
- sr = SQLBindParam(stmt, 3, SQL_C_CHAR, SQL_VARCHAR, 255, 0, const_cast<char*>(value), &b_ind);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("SQLBindParam failed (value = %s)", value);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to insert record.");\r
- }\r
- m_log.debug("SQLBindParam succeeded (value = %s)", value);\r
- \r
- int attempts = 3;\r
- pair<bool,bool> logres;\r
- do {\r
- logres = make_pair(false,false);\r
- attempts--;\r
- sr = SQLExecute(stmt);\r
- if (SQL_SUCCEEDED(sr)) {\r
- m_log.debug("SQLExecute of insert succeeded");\r
- return true;\r
- }\r
- m_log.error("insert record failed (t=%s, c=%s, k=%s)", table, context, key);\r
- logres = log_error(stmt, SQL_HANDLE_STMT, "23000");\r
- if (logres.second) {\r
- // Supposedly integrity violation.\r
- // Try and delete any expired record still hanging around until the final attempt.\r
- if (attempts > 0) {\r
- reap(table, context);\r
- logres.first = true; // force it to treat as a retryable error\r
- continue;\r
- }\r
- return false;\r
- }\r
- } while (attempts && logres.first);\r
-\r
- throw IOException("ODBC StorageService failed to insert record.");\r
-}\r
-\r
-int ODBCStorageService::readRow(const char *table, const char* context, const char* key, string* pvalue, time_t* pexpiration, int version)\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("readRow");\r
-#endif\r
-\r
- // Get statement handle.\r
- ODBCConn conn(getHDBC());\r
- SQLHSTMT stmt = getHSTMT(conn);\r
-\r
- // Prepare and exectute select statement.\r
- char timebuf[32];\r
- timestampFromTime(time(nullptr), timebuf);\r
- SQLString scontext(context);\r
- SQLString skey(key);\r
- string q("SELECT version");\r
- if (pexpiration)\r
- q += ",expires";\r
- if (pvalue) {\r
- pvalue->erase();\r
- q = q + ",CASE version WHEN " + lexical_cast<string>(version) + " THEN null ELSE value END";\r
- }\r
- q = q + " FROM " + table + " WHERE context='" + scontext.tostr() + "' AND id='" + skey.tostr() + "' AND expires > " + timebuf;\r
- if (m_log.isDebugEnabled())\r
- m_log.debug("SQL: %s", q.c_str());\r
-\r
- SQLRETURN sr=SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("error searching for (t=%s, c=%s, k=%s)", table, context, key);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService search failed.");\r
- }\r
-\r
- SQLSMALLINT ver;\r
- SQLINTEGER widever;\r
- SQL_TIMESTAMP_STRUCT expiration;\r
-\r
- if (m_wideVersion)\r
- SQLBindCol(stmt, 1, SQL_C_SLONG, &widever, 0, nullptr);\r
- else\r
- SQLBindCol(stmt, 1, SQL_C_SSHORT, &ver, 0, nullptr);\r
- if (pexpiration)\r
- SQLBindCol(stmt, 2, SQL_C_TYPE_TIMESTAMP, &expiration, 0, nullptr);\r
-\r
- if ((sr = SQLFetch(stmt)) == SQL_NO_DATA) {\r
- if (m_log.isDebugEnabled())\r
- m_log.debug("search returned no data (t=%s, c=%s, k=%s)", table, context, key);\r
- return 0;\r
- }\r
-\r
- if (pexpiration)\r
- *pexpiration = timeFromTimestamp(expiration);\r
-\r
- if (version == (m_wideVersion ? widever : ver)) {\r
- if (m_log.isDebugEnabled())\r
- m_log.debug("versioned search detected no change (t=%s, c=%s, k=%s)", table, context, key);\r
- return version; // nothing's changed, so just echo back the version\r
- }\r
-\r
- if (pvalue) {\r
- SQLLEN 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
- }\r
- \r
- return (m_wideVersion ? widever : ver);\r
-}\r
-\r
-int ODBCStorageService::updateRow(const char *table, const char* context, const char* key, const char* value, time_t expiration, int version)\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("updateRow");\r
-#endif\r
-\r
- if (!value && !expiration)\r
- throw IOException("ODBC StorageService given invalid update instructions.");\r
-\r
- // Get statement handle. Disable auto-commit mode to wrap select + update.\r
- ODBCConn conn(getHDBC());\r
- SQLRETURN sr = SQLSetConnectAttr(conn, SQL_ATTR_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF, 0);\r
- if (!SQL_SUCCEEDED(sr))\r
- throw IOException("ODBC StorageService failed to disable auto-commit mode.");\r
- conn.autoCommit = false;\r
- SQLHSTMT stmt = getHSTMT(conn);\r
-\r
- // First, fetch the current version for later, which also ensures the record still exists.\r
- char timebuf[32];\r
- timestampFromTime(time(nullptr), timebuf);\r
- SQLString scontext(context);\r
- SQLString skey(key);\r
- string q("SELECT version FROM ");\r
- q = q + table + " WHERE context='" + scontext.tostr() + "' AND id='" + skey.tostr() + "' AND expires > " + timebuf;\r
-\r
- m_log.debug("SQL: %s", q.c_str());\r
-\r
- sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("error searching for (t=%s, c=%s, k=%s)", table, context, key);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService search failed.");\r
- }\r
-\r
- SQLSMALLINT ver;\r
- SQLINTEGER widever;\r
- if (m_wideVersion)\r
- SQLBindCol(stmt, 1, SQL_C_SLONG, &widever, 0, nullptr);\r
- else\r
- SQLBindCol(stmt, 1, SQL_C_SSHORT, &ver, 0, nullptr);\r
- if ((sr = SQLFetch(stmt)) == SQL_NO_DATA) {\r
- return 0;\r
- }\r
-\r
- // Check version?\r
- if (version > 0 && version != (m_wideVersion ? widever : ver)) {\r
- return -1;\r
- }\r
- else if ((m_wideVersion && widever == INT_MAX) || (!m_wideVersion && ver == 32767)) {\r
- m_log.error("record version overflow (t=%s, c=%s, k=%s)", table, context, key);\r
- throw IOException("Version overflow, record in ODBC StorageService could not be updated.");\r
- }\r
-\r
- SQLFreeHandle(SQL_HANDLE_STMT, stmt);\r
- stmt = getHSTMT(conn);\r
-\r
- // Prepare and exectute update statement.\r
- q = string("UPDATE ") + table + " SET ";\r
-\r
- if (value)\r
- q = q + "value=?, version=version+1";\r
-\r
- if (expiration) {\r
- timestampFromTime(expiration, timebuf);\r
- if (value)\r
- q += ',';\r
- q = q + "expires = " + timebuf;\r
- }\r
-\r
- q = q + " WHERE context='" + scontext.tostr() + "' AND id='" + skey.tostr() + "'";\r
-\r
- sr = SQLPrepare(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("update of record failed (t=%s, c=%s, k=%s", table, context, key);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to update record.");\r
- }\r
- m_log.debug("SQLPrepare succeeded. SQL: %s", q.c_str());\r
-\r
- SQLLEN b_ind = SQL_NTS;\r
- if (value) {\r
- if (strcmp(table, TEXT_TABLE)==0)\r
- sr = SQLBindParam(stmt, 1, SQL_C_CHAR, SQL_LONGVARCHAR, strlen(value), 0, const_cast<char*>(value), &b_ind);\r
- else\r
- sr = SQLBindParam(stmt, 1, SQL_C_CHAR, SQL_VARCHAR, 255, 0, const_cast<char*>(value), &b_ind);\r
- if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("SQLBindParam failed (value = %s)", value);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to update record.");\r
- }\r
- m_log.debug("SQLBindParam succeeded (value = %s)", value);\r
- }\r
-\r
- int attempts = 3;\r
- pair<bool,bool> logres;\r
- do {\r
- logres = make_pair(false,false);\r
- attempts--;\r
- sr = SQLExecute(stmt);\r
- if (sr == SQL_NO_DATA)\r
- return 0; // went missing?\r
- else if (SQL_SUCCEEDED(sr)) {\r
- m_log.debug("SQLExecute of update succeeded");\r
- return (m_wideVersion ? widever : ver) + 1;\r
- }\r
-\r
- m_log.error("update of record failed (t=%s, c=%s, k=%s)", table, context, key);\r
- logres = log_error(stmt, SQL_HANDLE_STMT);\r
- } while (attempts && logres.first);\r
-\r
- throw IOException("ODBC StorageService failed to update record.");\r
-}\r
-\r
-bool ODBCStorageService::deleteRow(const char *table, const char *context, const char* key)\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("deleteRow");\r
-#endif\r
-\r
- // Get statement handle.\r
- ODBCConn conn(getHDBC());\r
- SQLHSTMT stmt = getHSTMT(conn);\r
-\r
- // Prepare and execute delete statement.\r
- SQLString scontext(context);\r
- SQLString skey(key);\r
- string q = string("DELETE FROM ") + table + " WHERE context='" + scontext.tostr() + "' AND id='" + skey.tostr() + "'";\r
- m_log.debug("SQL: %s", q.c_str());\r
-\r
- SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);\r
- if (sr == SQL_NO_DATA)\r
- return false;\r
- else if (!SQL_SUCCEEDED(sr)) {\r
- m_log.error("error deleting record (t=%s, c=%s, k=%s)", table, context, key);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to delete record.");\r
- }\r
-\r
- return true;\r
-}\r
-\r
-\r
-void ODBCStorageService::cleanup()\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("cleanup");\r
-#endif\r
-\r
- scoped_ptr<Mutex> mutex(Mutex::create());\r
-\r
- mutex->lock();\r
-\r
- m_log.info("cleanup thread started... running every %d secs", m_cleanupInterval);\r
-\r
- while (!shutdown) {\r
- shutdown_wait->timedwait(mutex.get(), m_cleanupInterval);\r
- if (shutdown)\r
- break;\r
- try {\r
- reap(nullptr);\r
- }\r
- catch (std::exception& ex) {\r
- m_log.error("cleanup thread swallowed exception: %s", ex.what());\r
- }\r
- }\r
-\r
- m_log.info("cleanup thread exiting...");\r
-\r
- mutex->unlock();\r
- Thread::exit(nullptr);\r
-}\r
-\r
-void* ODBCStorageService::cleanup_fn(void* cache_p)\r
-{\r
- ODBCStorageService* cache = (ODBCStorageService*)cache_p;\r
-\r
-#ifndef WIN32\r
- // First, let's block all signals\r
- Thread::mask_all_signals();\r
-#endif\r
-\r
- // Now run the cleanup process.\r
- cache->cleanup();\r
- return nullptr;\r
-}\r
-\r
-void ODBCStorageService::updateContext(const char *table, const char* context, time_t expiration)\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("updateContext");\r
-#endif\r
-\r
- // Get statement handle.\r
- ODBCConn conn(getHDBC());\r
- SQLHSTMT stmt = getHSTMT(conn);\r
-\r
- char timebuf[32];\r
- timestampFromTime(expiration, timebuf);\r
-\r
- char nowbuf[32];\r
- timestampFromTime(time(nullptr), nowbuf);\r
-\r
- SQLString scontext(context);\r
- string q = string("UPDATE ") + table + " SET expires = " + timebuf + " WHERE context='" + scontext.tostr() + "' AND expires > " + nowbuf;\r
-\r
- m_log.debug("SQL: %s", q.c_str());\r
-\r
- SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);\r
- if ((sr != SQL_NO_DATA) && !SQL_SUCCEEDED(sr)) {\r
- m_log.error("error updating records (t=%s, c=%s)", table, context ? context : "all");\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to update context expiration.");\r
- }\r
-}\r
-\r
-void ODBCStorageService::reap(const char *table, const char* context)\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("reap");\r
-#endif\r
-\r
- // Get statement handle.\r
- ODBCConn conn(getHDBC());\r
- SQLHSTMT stmt = getHSTMT(conn);\r
-\r
- // Prepare and execute delete statement.\r
- char nowbuf[32];\r
- timestampFromTime(time(nullptr), nowbuf);\r
- string q;\r
- if (context) {\r
- SQLString scontext(context);\r
- q = string("DELETE FROM ") + table + " WHERE context='" + scontext.tostr() + "' AND expires <= " + nowbuf;\r
- }\r
- else {\r
- q = string("DELETE FROM ") + table + " WHERE expires <= " + nowbuf;\r
- }\r
- m_log.debug("SQL: %s", q.c_str());\r
-\r
- SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);\r
- if ((sr != SQL_NO_DATA) && !SQL_SUCCEEDED(sr)) {\r
- m_log.error("error expiring records (t=%s, c=%s)", table, context ? context : "all");\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to purge expired records.");\r
- }\r
-}\r
-\r
-void ODBCStorageService::deleteContext(const char *table, const char* context)\r
-{\r
-#ifdef _DEBUG\r
- xmltooling::NDC ndc("deleteContext");\r
-#endif\r
-\r
- // Get statement handle.\r
- ODBCConn conn(getHDBC());\r
- SQLHSTMT stmt = getHSTMT(conn);\r
-\r
- // Prepare and execute delete statement.\r
- SQLString scontext(context);\r
- string q = string("DELETE FROM ") + table + " WHERE context='" + scontext.tostr() + "'";\r
- m_log.debug("SQL: %s", q.c_str());\r
-\r
- SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);\r
- if ((sr != SQL_NO_DATA) && !SQL_SUCCEEDED(sr)) {\r
- m_log.error("error deleting context (t=%s, c=%s)", table, context);\r
- log_error(stmt, SQL_HANDLE_STMT);\r
- throw IOException("ODBC StorageService failed to delete context.");\r
- }\r
-}\r
-\r
-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
+/**
+ * Licensed to the University Corporation for Advanced Internet
+ * Development, Inc. (UCAID) under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * UCAID 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.
+ */
+
+/**
+ * odbc-store.cpp
+ *
+ * Storage Service using ODBC.
+ */
+
+#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)
+#else
+# define ODBCSTORE_EXPORTS
+#endif
+
+#include <xmltooling/logging.h>
+#include <xmltooling/unicode.h>
+#include <xmltooling/XMLToolingConfig.h>
+#include <xmltooling/util/NDC.h>
+#include <xmltooling/util/StorageService.h>
+#include <xmltooling/util/Threads.h>
+#include <xmltooling/util/XMLHelper.h>
+#include <xercesc/util/XMLUniDefs.hpp>
+
+#include <sql.h>
+#include <sqlext.h>
+
+#include <boost/lexical_cast.hpp>
+#include <boost/algorithm/string.hpp>
+
+using namespace xmltooling::logging;
+using namespace xmltooling;
+using namespace xercesc;
+using namespace boost;
+using namespace std;
+
+#define PLUGIN_VER_MAJOR 1
+#define PLUGIN_VER_MINOR 1
+
+#define LONGDATA_BUFLEN 16384
+
+#define COLSIZE_CONTEXT 255
+#define COLSIZE_ID 255
+#define COLSIZE_STRING_VALUE 255
+
+#define STRING_TABLE "strings"
+#define TEXT_TABLE "texts"
+
+/* table definitions
+CREATE TABLE version (
+ major int NOT nullptr,
+ minor int NOT nullptr
+ )
+
+CREATE TABLE strings (
+ context varchar(255) not null,
+ id varchar(255) not null,
+ expires datetime not null,
+ version int 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 int not null,
+ value text not null,
+ PRIMARY KEY (context, id)
+ )
+*/
+
+namespace {
+ static const XMLCh cleanupInterval[] = UNICODE_LITERAL_15(c,l,e,a,n,u,p,I,n,t,e,r,v,a,l);
+ static const XMLCh isolationLevel[] = UNICODE_LITERAL_14(i,s,o,l,a,t,i,o,n,L,e,v,e,l);
+ static const XMLCh ConnectionString[] = UNICODE_LITERAL_16(C,o,n,n,e,c,t,i,o,n,S,t,r,i,n,g);
+ static const XMLCh RetryOnError[] = UNICODE_LITERAL_12(R,e,t,r,y,O,n,E,r,r,o,r);
+ static const XMLCh contextSize[] = UNICODE_LITERAL_11(c,o,n,t,e,x,t,S,i,z,e);
+ static const XMLCh keySize[] = UNICODE_LITERAL_7(k,e,y,S,i,z,e);
+ static const XMLCh stringSize[] = UNICODE_LITERAL_10(s,t,r,i,n,g,S,i,z,e);
+
+ // RAII for ODBC handles
+ struct ODBCConn {
+ ODBCConn(SQLHDBC conn) : handle(conn), autoCommit(true) {}
+ ~ODBCConn() {
+ if (handle != SQL_NULL_HDBC) {
+ SQLRETURN sr = SQL_SUCCESS;
+ if (!autoCommit)
+ sr = SQLSetConnectAttr(handle, SQL_ATTR_AUTOCOMMIT, (SQLPOINTER)SQL_AUTOCOMMIT_ON, 0);
+ SQLDisconnect(handle);
+ SQLFreeHandle(SQL_HANDLE_DBC, handle);
+ if (!SQL_SUCCEEDED(sr))
+ throw IOException("Failed to commit connection and return to auto-commit mode.");
+ }
+ }
+ operator SQLHDBC() {return handle;}
+ SQLHDBC handle;
+ bool autoCommit;
+ };
+
+ class ODBCStorageService : public StorageService
+ {
+ public:
+ ODBCStorageService(const DOMElement* e);
+ virtual ~ODBCStorageService();
+
+ const Capabilities& getCapabilities() const {
+ return m_caps;
+ }
+
+ 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=nullptr, time_t* pexpiration=nullptr, int version=0) {
+ return readRow(STRING_TABLE, context, key, pvalue, pexpiration, version);
+ }
+ int updateString(const char* context, const char* key, const char* value=nullptr, time_t expiration=0, int version=0) {
+ return updateRow(STRING_TABLE, context, key, value, expiration, version);
+ }
+ bool deleteString(const char* context, const char* key) {
+ return deleteRow(STRING_TABLE, context, key);
+ }
+
+ 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=nullptr, time_t* pexpiration=nullptr, int version=0) {
+ return readRow(TEXT_TABLE, context, key, pvalue, pexpiration, version);
+ }
+ int updateText(const char* context, const char* key, const char* value=nullptr, time_t expiration=0, int version=0) {
+ return updateRow(TEXT_TABLE, context, key, value, expiration, version);
+ }
+ bool deleteText(const char* context, const char* key) {
+ return deleteRow(TEXT_TABLE, context, key);
+ }
+
+ void reap(const char* context) {
+ reap(STRING_TABLE, context);
+ reap(TEXT_TABLE, context);
+ }
+
+ void updateContext(const char* context, time_t expiration) {
+ updateContext(STRING_TABLE, context, expiration);
+ updateContext(TEXT_TABLE, context, expiration);
+ }
+
+ void deleteContext(const char* context) {
+ deleteContext(STRING_TABLE, context);
+ deleteContext(TEXT_TABLE, context);
+ }
+
+
+ private:
+ 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);
+ 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);
+
+ void reap(const char* table, const char* context);
+ void updateContext(const char* table, const char* context, time_t expiration);
+ void deleteContext(const char* table, const char* context);
+
+ SQLHDBC getHDBC();
+ SQLHSTMT getHSTMT(SQLHDBC);
+ pair<SQLINTEGER,SQLINTEGER> getVersion(SQLHDBC);
+ pair<bool,bool> log_error(SQLHANDLE handle, SQLSMALLINT htype, const char* checkfor=nullptr);
+
+ static void* cleanup_fn(void*);
+ void cleanup();
+
+ Category& m_log;
+ Capabilities m_caps;
+ int m_cleanupInterval;
+ scoped_ptr<CondWait> shutdown_wait;
+ Thread* cleanup_thread;
+ bool shutdown;
+
+ SQLHENV m_henv;
+ string m_connstring;
+ long m_isolation;
+ bool m_wideVersion;
+ vector<SQLINTEGER> m_retries;
+ };
+
+ StorageService* ODBCStorageServiceFactory(const DOMElement* const & e)
+ {
+ return new ODBCStorageService(e);
+ }
+
+ // convert SQL timestamp to time_t
+ time_t timeFromTimestamp(SQL_TIMESTAMP_STRUCT expires)
+ {
+ time_t ret;
+ struct tm t;
+ t.tm_sec=expires.second;
+ t.tm_min=expires.minute;
+ t.tm_hour=expires.hour;
+ t.tm_mday=expires.day;
+ t.tm_mon=expires.month-1;
+ t.tm_year=expires.year-1900;
+ t.tm_isdst=0;
+#if defined(HAVE_TIMEGM)
+ ret = timegm(&t);
+#else
+ ret = mktime(&t) - timezone;
+#endif
+ return (ret);
+ }
+
+ // conver time_t to SQL string
+ void timestampFromTime(time_t t, char* ret)
+ {
+#ifdef HAVE_GMTIME_R
+ struct tm res;
+ struct tm* ptime=gmtime_r(&t,&res);
+#else
+ struct tm* ptime=gmtime(&t);
+#endif
+ strftime(ret,32,"{ts '%Y-%m-%d %H:%M:%S'}",ptime);
+ }
+
+ class SQLString {
+ const char* m_src;
+ string m_copy;
+ public:
+ SQLString(const char* src) : m_src(src) {
+ if (strchr(src, '\'')) {
+ m_copy = src;
+ replace_all(m_copy, "'", "''");
+ }
+ }
+
+ operator const char*() const {
+ return tostr();
+ }
+
+ const char* tostr() const {
+ return m_copy.empty() ? m_src : m_copy.c_str();
+ }
+ };
+};
+
+ODBCStorageService::ODBCStorageService(const DOMElement* e) : m_log(Category::getInstance("XMLTooling.StorageService")),
+ m_caps(XMLHelper::getAttrInt(e, 255, contextSize), XMLHelper::getAttrInt(e, 255, keySize), XMLHelper::getAttrInt(e, 255, stringSize)),
+ m_cleanupInterval(XMLHelper::getAttrInt(e, 900, cleanupInterval)),
+ cleanup_thread(nullptr), shutdown(false), m_henv(SQL_NULL_HENV), m_isolation(SQL_TXN_SERIALIZABLE), m_wideVersion(false)
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("ODBCStorageService");
+#endif
+ string iso(XMLHelper::getAttrString(e, "SERIALIZABLE", isolationLevel));
+ if (iso == "SERIALIZABLE")
+ m_isolation = SQL_TXN_SERIALIZABLE;
+ else if (iso == "REPEATABLE_READ")
+ m_isolation = SQL_TXN_REPEATABLE_READ;
+ else if (iso == "READ_COMMITTED")
+ m_isolation = SQL_TXN_READ_COMMITTED;
+ else if (iso == "READ_UNCOMMITTED")
+ m_isolation = SQL_TXN_READ_UNCOMMITTED;
+ else
+ throw XMLToolingException("Unknown transaction isolationLevel property.");
+
+ if (m_henv == SQL_NULL_HENV) {
+ // Enable connection pooling.
+ SQLSetEnvAttr(SQL_NULL_HANDLE, SQL_ATTR_CONNECTION_POOLING, (void*)SQL_CP_ONE_PER_HENV, 0);
+
+ // Allocate the environment.
+ if (!SQL_SUCCEEDED(SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &m_henv)))
+ throw XMLToolingException("ODBC failed to initialize.");
+
+ // Specify ODBC 3.x
+ SQLSetEnvAttr(m_henv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0);
+
+ m_log.info("ODBC initialized");
+ }
+
+ // Grab connection string from the configuration.
+ e = e ? XMLHelper::getFirstChildElement(e, ConnectionString) : nullptr;
+ auto_ptr_char arg(e ? e->getTextContent() : nullptr);
+ if (!arg.get() || !*arg.get()) {
+ SQLFreeHandle(SQL_HANDLE_ENV, m_henv);
+ throw XMLToolingException("ODBC StorageService requires ConnectionString element in configuration.");
+ }
+ m_connstring = arg.get();
+
+ // Connect and check version.
+ ODBCConn conn(getHDBC());
+ pair<SQLINTEGER,SQLINTEGER> v = getVersion(conn);
+
+ // Make sure we've got the right version.
+ if (v.first != PLUGIN_VER_MAJOR) {
+ SQLFreeHandle(SQL_HANDLE_ENV, m_henv);
+ m_log.crit("unknown database version: %d.%d", v.first, v.second);
+ throw XMLToolingException("Unknown database version for ODBC StorageService.");
+ }
+
+ if (v.first > 1 || v.second > 0) {
+ m_log.info("using 32-bit int type for version fields in tables");
+ m_wideVersion = true;
+ }
+
+ // Load any retry errors to check.
+ e = XMLHelper::getNextSiblingElement(e, RetryOnError);
+ while (e) {
+ if (e->hasChildNodes()) {
+ try {
+ int code = XMLString::parseInt(e->getTextContent());
+ m_retries.push_back(code);
+ m_log.info("will retry operations when native ODBC error (%d) is returned", code);
+ }
+ catch (XMLException&) {
+ m_log.error("skipping non-numeric ODBC retry code");
+ }
+ }
+ e = XMLHelper::getNextSiblingElement(e, RetryOnError);
+ }
+
+ if (m_cleanupInterval > 0) {
+ // Initialize the cleanup thread
+ shutdown_wait.reset(CondWait::create());
+ cleanup_thread = Thread::create(&cleanup_fn, (void*)this);
+ }
+ else {
+ m_log.info("no cleanup interval configured, no cleanup thread will be started");
+ }
+}
+
+ODBCStorageService::~ODBCStorageService()
+{
+ shutdown = true;
+ if (shutdown_wait.get()) {
+ shutdown_wait->signal();
+ }
+ if (cleanup_thread) {
+ cleanup_thread->join(nullptr);
+ }
+ if (m_henv != SQL_NULL_HANDLE) {
+ SQLFreeHandle(SQL_HANDLE_ENV, m_henv);
+ }
+}
+
+pair<bool,bool> ODBCStorageService::log_error(SQLHANDLE handle, SQLSMALLINT htype, const char* checkfor)
+{
+ SQLSMALLINT i = 0;
+ SQLINTEGER native;
+ SQLCHAR state[7];
+ SQLCHAR text[256];
+ SQLSMALLINT len;
+ SQLRETURN ret;
+
+ pair<bool,bool> res = make_pair(false,false);
+ do {
+ ret = SQLGetDiagRec(htype, handle, ++i, state, &native, text, sizeof(text), &len);
+ if (SQL_SUCCEEDED(ret)) {
+ m_log.error("ODBC Error: %s:%ld:%ld:%s", state, i, native, text);
+ for (vector<SQLINTEGER>::const_iterator n = m_retries.begin(); !res.first && n != m_retries.end(); ++n)
+ res.first = (*n == native);
+ if (checkfor && !strcmp(checkfor, (const char*)state))
+ res.second = true;
+ }
+ } while(SQL_SUCCEEDED(ret));
+ return res;
+}
+
+SQLHDBC ODBCStorageService::getHDBC()
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("getHDBC");
+#endif
+
+ // Get a handle.
+ SQLHDBC handle = SQL_NULL_HDBC;
+ SQLRETURN sr = SQLAllocHandle(SQL_HANDLE_DBC, m_henv, &handle);
+ if (!SQL_SUCCEEDED(sr) || handle == SQL_NULL_HDBC) {
+ m_log.error("failed to allocate connection handle");
+ log_error(m_henv, SQL_HANDLE_ENV);
+ throw IOException("ODBC StorageService failed to allocate a connection handle.");
+ }
+
+ sr = SQLDriverConnect(handle,nullptr,(SQLCHAR*)m_connstring.c_str(),m_connstring.length(),nullptr,0,nullptr,SQL_DRIVER_NOPROMPT);
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("failed to connect to database");
+ log_error(handle, SQL_HANDLE_DBC);
+ SQLFreeHandle(SQL_HANDLE_DBC, handle);
+ throw IOException("ODBC StorageService failed to connect to database.");
+ }
+
+ sr = SQLSetConnectAttr(handle, SQL_ATTR_TXN_ISOLATION, (SQLPOINTER)m_isolation, 0);
+ if (!SQL_SUCCEEDED(sr)) {
+ SQLDisconnect(handle);
+ SQLFreeHandle(SQL_HANDLE_DBC, handle);
+ throw IOException("ODBC StorageService failed to set transaction isolation level.");
+ }
+
+ return handle;
+}
+
+SQLHSTMT ODBCStorageService::getHSTMT(SQLHDBC conn)
+{
+ SQLHSTMT hstmt = SQL_NULL_HSTMT;
+ SQLRETURN sr = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
+ if (!SQL_SUCCEEDED(sr) || hstmt == SQL_NULL_HSTMT) {
+ m_log.error("failed to allocate statement handle");
+ log_error(conn, SQL_HANDLE_DBC);
+ throw IOException("ODBC StorageService failed to allocate a statement handle.");
+ }
+ return hstmt;
+}
+
+pair<SQLINTEGER,SQLINTEGER> ODBCStorageService::getVersion(SQLHDBC conn)
+{
+ // Grab the version number from the database.
+ SQLHSTMT stmt = getHSTMT(conn);
+
+ SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)"SELECT major,minor FROM version", SQL_NTS);
+ if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("failed to read version from database");
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to read version from database.");
+ }
+
+ SQLINTEGER major;
+ SQLINTEGER minor;
+ SQLBindCol(stmt, 1, SQL_C_SLONG, &major, 0, nullptr);
+ SQLBindCol(stmt, 2, SQL_C_SLONG, &minor, 0, nullptr);
+
+ if ((sr = SQLFetch(stmt)) != SQL_NO_DATA)
+ return make_pair(major,minor);
+
+ m_log.error("no rows returned in version query");
+ throw IOException("ODBC StorageService failed to read version from database.");
+}
+
+bool ODBCStorageService::createRow(const char* table, const char* context, const char* key, const char* value, time_t expiration)
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("createRow");
+#endif
+
+ char timebuf[32];
+ timestampFromTime(expiration, timebuf);
+
+ // Get statement handle.
+ ODBCConn conn(getHDBC());
+ SQLHSTMT stmt = getHSTMT(conn);
+
+ string q = string("INSERT INTO ") + table + " VALUES (?,?," + timebuf + ",1,?)";
+
+ SQLRETURN sr = SQLPrepare(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ if (!SQL_SUCCEEDED(sr)) {
+ 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 succeeded. SQL: %s", q.c_str());
+
+ SQLLEN b_ind = SQL_NTS;
+ sr = SQLBindParam(stmt, 1, SQL_C_CHAR, SQL_VARCHAR, 255, 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 succeeded (context = %s)", context);
+
+ sr = SQLBindParam(stmt, 2, SQL_C_CHAR, SQL_VARCHAR, 255, 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 succeeded (key = %s)", key);
+
+ if (strcmp(table, TEXT_TABLE)==0)
+ sr = SQLBindParam(stmt, 3, SQL_C_CHAR, SQL_LONGVARCHAR, strlen(value), 0, const_cast<char*>(value), &b_ind);
+ else
+ sr = SQLBindParam(stmt, 3, SQL_C_CHAR, SQL_VARCHAR, 255, 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 succeeded (value = %s)", value);
+
+ int attempts = 3;
+ pair<bool,bool> logres;
+ do {
+ logres = make_pair(false,false);
+ attempts--;
+ sr = SQLExecute(stmt);
+ if (SQL_SUCCEEDED(sr)) {
+ m_log.debug("SQLExecute of insert succeeded");
+ return true;
+ }
+ m_log.error("insert record failed (t=%s, c=%s, k=%s)", table, context, key);
+ logres = log_error(stmt, SQL_HANDLE_STMT, "23000");
+ if (logres.second) {
+ // Supposedly integrity violation.
+ // Try and delete any expired record still hanging around until the final attempt.
+ if (attempts > 0) {
+ reap(table, context);
+ logres.first = true; // force it to treat as a retryable error
+ continue;
+ }
+ return false;
+ }
+ } while (attempts && logres.first);
+
+ throw IOException("ODBC StorageService failed to insert record.");
+}
+
+int ODBCStorageService::readRow(const char *table, const char* context, const char* key, string* pvalue, time_t* pexpiration, int version)
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("readRow");
+#endif
+
+ // Get statement handle.
+ ODBCConn conn(getHDBC());
+ SQLHSTMT stmt = getHSTMT(conn);
+
+ // Prepare and exectute select statement.
+ char timebuf[32];
+ timestampFromTime(time(nullptr), timebuf);
+ SQLString scontext(context);
+ SQLString skey(key);
+ string q("SELECT version");
+ if (pexpiration)
+ q += ",expires";
+ if (pvalue) {
+ pvalue->erase();
+ q = q + ",CASE version WHEN " + lexical_cast<string>(version) + " THEN null ELSE value END";
+ }
+ q = q + " FROM " + table + " WHERE context='" + scontext.tostr() + "' AND id='" + skey.tostr() + "' AND expires > " + timebuf;
+ if (m_log.isDebugEnabled())
+ m_log.debug("SQL: %s", q.c_str());
+
+ SQLRETURN sr=SQLExecDirect(stmt, (SQLCHAR*)q.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);
+ throw IOException("ODBC StorageService search failed.");
+ }
+
+ SQLSMALLINT ver;
+ SQLINTEGER widever;
+ SQL_TIMESTAMP_STRUCT expiration;
+
+ if (m_wideVersion)
+ SQLBindCol(stmt, 1, SQL_C_SLONG, &widever, 0, nullptr);
+ else
+ SQLBindCol(stmt, 1, SQL_C_SSHORT, &ver, 0, nullptr);
+ if (pexpiration)
+ SQLBindCol(stmt, 2, SQL_C_TYPE_TIMESTAMP, &expiration, 0, nullptr);
+
+ if ((sr = SQLFetch(stmt)) == SQL_NO_DATA) {
+ if (m_log.isDebugEnabled())
+ m_log.debug("search returned no data (t=%s, c=%s, k=%s)", table, context, key);
+ return 0;
+ }
+
+ if (pexpiration)
+ *pexpiration = timeFromTimestamp(expiration);
+
+ if (version == (m_wideVersion ? widever : ver)) {
+ if (m_log.isDebugEnabled())
+ m_log.debug("versioned search detected no change (t=%s, c=%s, k=%s)", table, context, key);
+ return version; // nothing's changed, so just echo back the version
+ }
+
+ if (pvalue) {
+ SQLLEN 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 (m_wideVersion ? widever : ver);
+}
+
+int ODBCStorageService::updateRow(const char *table, const char* context, const char* key, const char* value, time_t expiration, int version)
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("updateRow");
+#endif
+
+ if (!value && !expiration)
+ throw IOException("ODBC StorageService given invalid update instructions.");
+
+ // Get statement handle. Disable auto-commit mode to wrap select + update.
+ ODBCConn conn(getHDBC());
+ SQLRETURN sr = SQLSetConnectAttr(conn, SQL_ATTR_AUTOCOMMIT, SQL_AUTOCOMMIT_OFF, 0);
+ if (!SQL_SUCCEEDED(sr))
+ throw IOException("ODBC StorageService failed to disable auto-commit mode.");
+ conn.autoCommit = false;
+ SQLHSTMT stmt = getHSTMT(conn);
+
+ // First, fetch the current version for later, which also ensures the record still exists.
+ char timebuf[32];
+ timestampFromTime(time(nullptr), timebuf);
+ SQLString scontext(context);
+ SQLString skey(key);
+ string q("SELECT version FROM ");
+ q = q + table + " WHERE context='" + scontext.tostr() + "' AND id='" + skey.tostr() + "' AND expires > " + timebuf;
+
+ m_log.debug("SQL: %s", q.c_str());
+
+ sr = SQLExecDirect(stmt, (SQLCHAR*)q.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);
+ throw IOException("ODBC StorageService search failed.");
+ }
+
+ SQLSMALLINT ver;
+ SQLINTEGER widever;
+ if (m_wideVersion)
+ SQLBindCol(stmt, 1, SQL_C_SLONG, &widever, 0, nullptr);
+ else
+ SQLBindCol(stmt, 1, SQL_C_SSHORT, &ver, 0, nullptr);
+ if ((sr = SQLFetch(stmt)) == SQL_NO_DATA) {
+ return 0;
+ }
+
+ // Check version?
+ if (version > 0 && version != (m_wideVersion ? widever : ver)) {
+ return -1;
+ }
+ else if ((m_wideVersion && widever == INT_MAX) || (!m_wideVersion && ver == 32767)) {
+ m_log.error("record version overflow (t=%s, c=%s, k=%s)", table, context, key);
+ throw IOException("Version overflow, record in ODBC StorageService could not be updated.");
+ }
+
+ SQLFreeHandle(SQL_HANDLE_STMT, stmt);
+ stmt = getHSTMT(conn);
+
+ // Prepare and exectute update statement.
+ q = string("UPDATE ") + table + " SET ";
+
+ if (value)
+ q = q + "value=?, version=version+1";
+
+ if (expiration) {
+ timestampFromTime(expiration, timebuf);
+ if (value)
+ q += ',';
+ q = q + "expires = " + timebuf;
+ }
+
+ q = q + " WHERE context='" + scontext.tostr() + "' AND id='" + skey.tostr() + "'";
+
+ 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 succeeded. SQL: %s", q.c_str());
+
+ SQLLEN b_ind = SQL_NTS;
+ if (value) {
+ if (strcmp(table, TEXT_TABLE)==0)
+ sr = SQLBindParam(stmt, 1, SQL_C_CHAR, SQL_LONGVARCHAR, strlen(value), 0, const_cast<char*>(value), &b_ind);
+ else
+ sr = SQLBindParam(stmt, 1, SQL_C_CHAR, SQL_VARCHAR, 255, 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 update record.");
+ }
+ m_log.debug("SQLBindParam succeeded (value = %s)", value);
+ }
+
+ int attempts = 3;
+ pair<bool,bool> logres;
+ do {
+ logres = make_pair(false,false);
+ attempts--;
+ sr = SQLExecute(stmt);
+ if (sr == SQL_NO_DATA)
+ return 0; // went missing?
+ else if (SQL_SUCCEEDED(sr)) {
+ m_log.debug("SQLExecute of update succeeded");
+ return (m_wideVersion ? widever : ver) + 1;
+ }
+
+ m_log.error("update of record failed (t=%s, c=%s, k=%s)", table, context, key);
+ logres = log_error(stmt, SQL_HANDLE_STMT);
+ } while (attempts && logres.first);
+
+ throw IOException("ODBC StorageService failed to update record.");
+}
+
+bool ODBCStorageService::deleteRow(const char *table, const char *context, const char* key)
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("deleteRow");
+#endif
+
+ // Get statement handle.
+ ODBCConn conn(getHDBC());
+ SQLHSTMT stmt = getHSTMT(conn);
+
+ // Prepare and execute delete statement.
+ SQLString scontext(context);
+ SQLString skey(key);
+ string q = string("DELETE FROM ") + table + " WHERE context='" + scontext.tostr() + "' AND id='" + skey.tostr() + "'";
+ m_log.debug("SQL: %s", q.c_str());
+
+ SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ if (sr == SQL_NO_DATA)
+ return false;
+ else if (!SQL_SUCCEEDED(sr)) {
+ m_log.error("error deleting record (t=%s, c=%s, k=%s)", table, context, key);
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to delete record.");
+ }
+
+ return true;
+}
+
+
+void ODBCStorageService::cleanup()
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("cleanup");
+#endif
+
+ scoped_ptr<Mutex> mutex(Mutex::create());
+
+ mutex->lock();
+
+ m_log.info("cleanup thread started... running every %d secs", m_cleanupInterval);
+
+ while (!shutdown) {
+ shutdown_wait->timedwait(mutex.get(), m_cleanupInterval);
+ if (shutdown)
+ break;
+ try {
+ reap(nullptr);
+ }
+ catch (std::exception& ex) {
+ m_log.error("cleanup thread swallowed exception: %s", ex.what());
+ }
+ }
+
+ m_log.info("cleanup thread exiting...");
+
+ mutex->unlock();
+ Thread::exit(nullptr);
+}
+
+void* ODBCStorageService::cleanup_fn(void* cache_p)
+{
+ ODBCStorageService* cache = (ODBCStorageService*)cache_p;
+
+#ifndef WIN32
+ // First, let's block all signals
+ Thread::mask_all_signals();
+#endif
+
+ // Now run the cleanup process.
+ cache->cleanup();
+ return nullptr;
+}
+
+void ODBCStorageService::updateContext(const char *table, const char* context, time_t expiration)
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("updateContext");
+#endif
+
+ // Get statement handle.
+ ODBCConn conn(getHDBC());
+ SQLHSTMT stmt = getHSTMT(conn);
+
+ char timebuf[32];
+ timestampFromTime(expiration, timebuf);
+
+ char nowbuf[32];
+ timestampFromTime(time(nullptr), nowbuf);
+
+ SQLString scontext(context);
+ string q = string("UPDATE ") + table + " SET expires = " + timebuf + " WHERE context='" + scontext.tostr() + "' AND expires > " + nowbuf;
+
+ m_log.debug("SQL: %s", q.c_str());
+
+ SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ if ((sr != SQL_NO_DATA) && !SQL_SUCCEEDED(sr)) {
+ m_log.error("error updating records (t=%s, c=%s)", table, context ? context : "all");
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to update context expiration.");
+ }
+}
+
+void ODBCStorageService::reap(const char *table, const char* context)
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("reap");
+#endif
+
+ // Get statement handle.
+ ODBCConn conn(getHDBC());
+ SQLHSTMT stmt = getHSTMT(conn);
+
+ // Prepare and execute delete statement.
+ char nowbuf[32];
+ timestampFromTime(time(nullptr), nowbuf);
+ string q;
+ if (context) {
+ SQLString scontext(context);
+ q = string("DELETE FROM ") + table + " WHERE context='" + scontext.tostr() + "' AND expires <= " + nowbuf;
+ }
+ else {
+ q = string("DELETE FROM ") + table + " WHERE expires <= " + nowbuf;
+ }
+ m_log.debug("SQL: %s", q.c_str());
+
+ SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ if ((sr != SQL_NO_DATA) && !SQL_SUCCEEDED(sr)) {
+ m_log.error("error expiring records (t=%s, c=%s)", table, context ? context : "all");
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to purge expired records.");
+ }
+}
+
+void ODBCStorageService::deleteContext(const char *table, const char* context)
+{
+#ifdef _DEBUG
+ xmltooling::NDC ndc("deleteContext");
+#endif
+
+ // Get statement handle.
+ ODBCConn conn(getHDBC());
+ SQLHSTMT stmt = getHSTMT(conn);
+
+ // Prepare and execute delete statement.
+ SQLString scontext(context);
+ string q = string("DELETE FROM ") + table + " WHERE context='" + scontext.tostr() + "'";
+ m_log.debug("SQL: %s", q.c_str());
+
+ SQLRETURN sr = SQLExecDirect(stmt, (SQLCHAR*)q.c_str(), SQL_NTS);
+ if ((sr != SQL_NO_DATA) && !SQL_SUCCEEDED(sr)) {
+ m_log.error("error deleting context (t=%s, c=%s)", table, context);
+ log_error(stmt, SQL_HANDLE_STMT);
+ throw IOException("ODBC StorageService failed to delete context.");
+ }
+}
+
+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");
+}
projects / shibboleth / cpp-sp.git / commitdiff