+
−/**
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− * Orthanc - A Lightweight, RESTful DICOM Store
+
− * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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− * Department, University Hospital of Liege, Belgium
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− * Copyright (C) 2017-2018 Osimis S.A., Belgium
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− *
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− * This program is free software: you can redistribute it and/or
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− * modify it under the terms of the GNU Affero General Public License
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− * as published by the Free Software Foundation, either version 3 of
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− * the License, or (at your option) any later version.
+
− *
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− * This program is distributed in the hope that it will be useful, but
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− * WITHOUT ANY WARRANTY; without even the implied warranty of
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− * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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− * Affero General Public License for more details.
+
− * 
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− * You should have received a copy of the GNU Affero General Public License
+
− * along with this program. If not, see <http://www.gnu.org/licenses/>.
+
− **/
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−
+
−
+
−#include "PostgreSQLTransaction.h"
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−
+
−#include "PostgreSQLException.h"
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−
+
−namespace OrthancPlugins
+
−{
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−  PostgreSQLTransaction::PostgreSQLTransaction(PostgreSQLConnection& connection,
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−                                               bool open) :
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−    connection_(connection),
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−    isOpen_(false)
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−  {
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−    if (open)
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−    {
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−      Begin();
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−    }
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−  }
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−
+
−  PostgreSQLTransaction::~PostgreSQLTransaction()
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−  {
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−    if (isOpen_)
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−    {
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−      connection_.Execute("ABORT");
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−    }
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−  }
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−
+
−  void PostgreSQLTransaction::Begin()
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−  {
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−    if (isOpen_) 
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−    {
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−      throw PostgreSQLException("PostgreSQL: Beginning a transaction twice!");
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−    }
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−
+
−    if (connection_.IsReadOnly())
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−    {
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−      connection_.Execute("BEGIN TRANSACTION READ ONLY");
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−    }
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−    else
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−    {
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−      connection_.Execute("BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE");
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−    }
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−
+
−    isOpen_ = true;
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−  }
+
−
+
−  void PostgreSQLTransaction::Rollback() 
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−  {
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−    if (!isOpen_) 
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−    {
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−      throw PostgreSQLException("Attempting to rollback a nonexistent transaction. "
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−                                "Did you remember to call Begin()?");
+
−    }
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−
+
−    connection_.Execute("ABORT");
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−    isOpen_ = false;
+
−  }
+
−
+
−  void PostgreSQLTransaction::Commit() 
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−  {
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−    if (!isOpen_) 
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−    {
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−      throw PostgreSQLException("Attempting to roll back a nonexistent transaction. "
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−                                "Did you remember to call Begin()?");
+
−    }
+
−
+
−    connection_.Execute("COMMIT");
+
−    isOpen_ = false;
+
−  }
+
−}