diff options
Diffstat (limited to '')
| -rwxr-xr-x | sca-cpp/branches/gcc-4.4/components/sqldb/pgsql | 25 | ||||
| -rwxr-xr-x | sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-start | 37 | ||||
| -rwxr-xr-x | sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-stop | 28 | ||||
| -rw-r--r-- | sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-test.cpp | 82 | ||||
| -rw-r--r-- | sca-cpp/branches/gcc-4.4/components/sqldb/pgsql.hpp | 227 |
5 files changed, 399 insertions, 0 deletions
diff --git a/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql new file mode 100755 index 0000000000..3cd1904e32 --- /dev/null +++ b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql @@ -0,0 +1,25 @@ +#!/bin/sh + +# 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. + +# Run SQL command +here=`readlink -f $0`; here=`dirname $here` +pgsql_prefix=`cat $here/pgsql.prefix` + +$pgsql_prefix/bin/psql -c "$1" db + diff --git a/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-start b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-start new file mode 100755 index 0000000000..f5c0f87614 --- /dev/null +++ b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-start @@ -0,0 +1,37 @@ +#!/bin/sh + +# 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. + +# Start postgresql +here=`readlink -f $0`; here=`dirname $here` +root=`readlink -f $1` + +pgsql_prefix=`cat $here/pgsql.prefix` +mkdir -p $root/sqldb +mkdir -p $root/logs +if [ ! -f $root/sqldb/postgresql.conf ]; then + $pgsql_prefix/bin/pg_ctl init -D $root/sqldb 1>/dev/null 2>&1 + createdb="true" +fi + +$pgsql_prefix/bin/pg_ctl start -D $root/sqldb -l $root/logs/postgresql 1>/dev/null 2>&1 +sleep 2 +if [ "$createdb" = "true" ]; then + $pgsql_prefix/bin/createdb db 1>/dev/null 2>&1 +fi + diff --git a/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-stop b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-stop new file mode 100755 index 0000000000..d0cda096ba --- /dev/null +++ b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-stop @@ -0,0 +1,28 @@ +#!/bin/sh + +# 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. + +# Stop postgresql +here=`readlink -f $0`; here=`dirname $here` +root=`readlink -f $1` + +pgsql_prefix=`cat $here/pgsql.prefix` +mkdir -p $root/sqldb +mkdir -p $root/logs +$pgsql_prefix/bin/pg_ctl stop -D $root/sqldb 1>/dev/null 2>&1 + diff --git a/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-test.cpp b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-test.cpp new file mode 100644 index 0000000000..7fb6b0c814 --- /dev/null +++ b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql-test.cpp @@ -0,0 +1,82 @@ +/* + * 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. + */ + +/* $Rev$ $Date$ */ + +/** + * Test PostgreSQL access functions. + */ + +#include <assert.h> +#include "stream.hpp" +#include "string.hpp" +#include "perf.hpp" +#include "pgsql.hpp" + +namespace tuscany { +namespace pgsql { + +bool testPGSql() { + PGSql pg("dbname=db", "test"); + const value k = mklist<value>("a"); + + assert(hasContent(post(k, string("AAA"), pg))); + assert((get(k, pg)) == value(string("AAA"))); + assert(hasContent(put(k, string("aaa"), pg))); + assert((get(k, pg)) == value(string("aaa"))); + assert(hasContent(del(k, pg))); + assert(!hasContent(get(k, pg))); + + return true; +} + +struct getLoop { + const value k; + PGSql& pg; + getLoop(const value& k, PGSql& pg) : k(k), pg(pg) { + } + const bool operator()() const { + assert((get(k, pg)) == value(string("CCC"))); + return true; + } +}; + +bool testGetPerf() { + const value k = mklist<value>("c"); + PGSql pg("dbname=db", "test"); + assert(hasContent(post(k, string("CCC"), pg))); + + const lambda<bool()> gl = getLoop(k, pg); + cout << "PGSql get test " << time(gl, 5, 200) << " ms" << endl; + return true; +} + +} +} + +int main() { + tuscany::cout << "Testing..." << tuscany::endl; + + tuscany::pgsql::testPGSql(); + tuscany::pgsql::testGetPerf(); + + tuscany::cout << "OK" << tuscany::endl; + + return 0; +} diff --git a/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql.hpp b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql.hpp new file mode 100644 index 0000000000..08e8a44123 --- /dev/null +++ b/sca-cpp/branches/gcc-4.4/components/sqldb/pgsql.hpp @@ -0,0 +1,227 @@ +/* + * 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. + */ + +/* $Rev$ $Date$ */ + +#ifndef tuscany_pgsql_hpp +#define tuscany_pgsql_hpp + +#include <libpq-fe.h> + +#include "string.hpp" +#include "list.hpp" +#include "value.hpp" +#include "monad.hpp" +#include "../../modules/scheme/eval.hpp" + +namespace tuscany { +namespace pgsql { + +/** + * Return and clear a Postgres result failure. + */ +const string pgfailure(PGresult* r) { + const string e = PQresultErrorMessage(r); + PQclear(r); + return e; +} + +/** + * Represents a PGSql connection. + */ +class PGSql { +public: + PGSql() : owner(false) { + } + + PGSql(const string& conninfo, const string& table) : owner(true), conninfo(conninfo), table(table) { + init(); + } + + PGSql(const PGSql& c) : owner(false) { + conninfo = c.conninfo; + conn = c.conn; + table = c.table; + } + + ~PGSql() { + if (!owner) + return; + PQfinish(conn); + } + +private: + bool owner; + PGconn *conn; + string conninfo; + string table; + + friend const failable<bool> post(const value& key, const value& val, const PGSql& pgsql); + friend const failable<bool> put(const value& key, const value& val, const PGSql& pgsql); + friend const failable<value> get(const value& key, const PGSql& pgsql); + friend const failable<bool> del(const value& key, const PGSql& pgsql); + + /** + * Initialize the database connection + */ + const failable<bool> init() { + conn = PQconnectdb(c_str(conninfo)); + if (PQstatus(conn) != CONNECTION_OK) + return mkfailure<bool>(string("Could not connect to database: ") + PQerrorMessage(conn)); + + // Find the name of the first column in the target table + // Assume that's the key we need to use + string ks = string("select a.attname from pg_attribute a, pg_class c where a.attrelid = c.relfilenode and c.relname = '") + table + string("' and a.attnum in (1, 2) order by a.attnum;"); + PGresult* kr = PQexec(conn, c_str(ks)); + if (PQresultStatus(kr) != PGRES_TUPLES_OK) + return mkfailure<bool>(string("Could not execute column select statement: ") + pgfailure(kr)); + if (PQntuples(kr) != 2) { + PQclear(kr); + return mkfailure<bool>(string("Could not find table key and value column names")); + } + const string kname = PQgetvalue(kr, 0, 0); + const string vname = PQgetvalue(kr, 1, 0); + PQclear(kr); + + // Prepare the post, put, get and delete statements + { + PGresult* r = PQprepare(conn, "post", c_str(string("insert into ") + table + string(" values($1, $2);")), 2, NULL); + if (PQresultStatus(r) != PGRES_COMMAND_OK) + return mkfailure<bool>(string("Could not prepare post SQL statement: ") + pgfailure(r)); + PQclear(r); + } + { + PGresult* r = PQprepare(conn, "put", c_str(string("update ") + table + string(" set ") + vname + string(" = $2 where ") + kname + string(" = $1;")), 2, NULL); + if (PQresultStatus(r) != PGRES_COMMAND_OK) + return mkfailure<bool>(string("Could not prepare put SQL statement: ") + pgfailure(r)); + PQclear(r); + } + { + PGresult* r = PQprepare(conn, "get", c_str(string("select * from ") + table + string(" where ") + kname + string(" = $1;")), 1, NULL); + if (PQresultStatus(r) != PGRES_COMMAND_OK) + return mkfailure<bool>(string("Could not prepare get SQL statement: ") + pgfailure(r)); + PQclear(r); + } + { + PGresult* r = PQprepare(conn, "delete", c_str(string("delete from ") + table + string(" where ") + kname + string(" = $1;")), 1, NULL); + if (PQresultStatus(r) != PGRES_COMMAND_OK) + return mkfailure<bool>(string("Could not prepare delete SQL statement: ") + pgfailure(r)); + PQclear(r); + } + return true; + } +}; + +/** + * Post a new item to the database. + */ +const failable<bool> post(const value& key, const value& val, const PGSql& pgsql) { + debug(key, "pgsql::post::key"); + debug(val, "pgsql::post::value"); + debug(pgsql.table, "pgsql::post::table"); + + const string ks(scheme::writeValue(key)); + const string vs(scheme::writeValue(val)); + const char* params[2] = { c_str(ks), c_str(vs) }; + PGresult* r = PQexecPrepared(pgsql.conn, "post", 2, params, NULL, NULL, 0); + if (PQresultStatus(r) != PGRES_COMMAND_OK) + return mkfailure<bool>(string("Could not execute post SQL statement: ") + pgfailure(r)); + PQclear(r); + + debug(true, "pgsql::post::result"); + return true; +} + +/** + * Update an item in the database. If the item doesn't exist it is added. + */ +const failable<bool> put(const value& key, const value& val, const PGSql& pgsql) { + debug(key, "pgsql::put::key"); + debug(val, "pgsql::put::value"); + debug(pgsql.table, "pgsql::put::table"); + + const string ks(scheme::writeValue(key)); + const string vs(scheme::writeValue(val)); + const char* params[2] = { c_str(ks), c_str(vs) }; + PGresult* r = PQexecPrepared(pgsql.conn, "put", 2, params, NULL, NULL, 0); + if (PQresultStatus(r) != PGRES_COMMAND_OK) + return mkfailure<bool>(string("Could not execute put SQL statement: ") + pgfailure(r)); + const string t = PQcmdTuples(r); + if (t != "0") { + PQclear(r); + debug(true, "pgsql::put::result"); + return true; + } + PQclear(r); + + PGresult* pr = PQexecPrepared(pgsql.conn, "post", 2, params, NULL, NULL, 0); + if (PQresultStatus(pr) != PGRES_COMMAND_OK) + return mkfailure<bool>(string("Could not execute post SQL statement: ") + pgfailure(pr)); + PQclear(pr); + + debug(true, "pgsql::put::result"); + return true; +} + +/** + * Get an item from the database. + */ +const failable<value> get(const value& key, const PGSql& pgsql) { + debug(key, "pgsql::get::key"); + debug(pgsql.table, "pgsql::get::table"); + + const string ks(scheme::writeValue(key)); + const char* params[1] = { c_str(ks) }; + PGresult* r = PQexecPrepared(pgsql.conn, "get", 1, params, NULL, NULL, 0); + if (PQresultStatus(r) != PGRES_TUPLES_OK) + return mkfailure<value>(string("Could not execute get SQL statement: ") + pgfailure(r)); + if (PQntuples(r) < 1) { + PQclear(r); + return mkfailure<value>(string("Could not get entry: ") + PQerrorMessage(pgsql.conn)); + } + const char* data = PQgetvalue(r, 0, 1); + const value val(scheme::readValue(string(data))); + PQclear(r); + + debug(val, "pgsql::get::result"); + return val; +} + +/** + * Delete an item from the database + */ +const failable<bool> del(const value& key, const PGSql& pgsql) { + debug(key, "pgsql::delete::key"); + debug(pgsql.table, "pgsql::delete::table"); + + const string ks(scheme::writeValue(key)); + const char* params[1] = { c_str(ks) }; + PGresult* r = PQexecPrepared(pgsql.conn, "delete", 1, params, NULL, NULL, 0); + if (PQresultStatus(r) != PGRES_COMMAND_OK) + return mkfailure<bool>(string("Could not execute delete SQL statement: ") + pgfailure(r)); + PQclear(r); + + debug(true, "pgsql::delete::result"); + return true; +} + +} +} + +#endif /* tuscany_pgsql_hpp */ |