1 files changed, 133 insertions, 0 deletions
diff --git a/java/perftests/visualisation-jfc/src/main/java/org/apache/qpid/disttest/charting/chartbuilder/SeriesBuilder.java b/java/perftests/visualisation-jfc/src/main/java/org/apache/qpid/disttest/charting/chartbuilder/SeriesBuilder.java
new file mode 100644
index 0000000000..de717792db
--- /dev/null
+++ b/java/perftests/visualisation-jfc/src/main/java/org/apache/qpid/disttest/charting/chartbuilder/SeriesBuilder.java
@@ -0,0 +1,133 @@
+/*
+ * 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.
+ *
+ */
+package org.apache.qpid.disttest.charting.chartbuilder;
+
+import java.io.File;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.qpid.disttest.charting.ChartingException;
+import org.apache.qpid.disttest.charting.definition.SeriesDefinition;
+
+public class SeriesBuilder
+{
+    static
+    {
+        registerCsvDriver();
+    }
+
+    private final DataPointCallback _dataPointCallback;
+
+    public SeriesBuilder(DataPointCallback dataPointCallback)
+    {
+        _dataPointCallback = dataPointCallback;
+    }
+
+    public void build(List<SeriesDefinition> seriesDefinitions)
+    {
+        for (Iterator<SeriesDefinition> iterator = seriesDefinitions.iterator(); iterator.hasNext();)
+        {
+            SeriesDefinition series = iterator.next();
+            buildDataSetForSingleSeries(series);
+        }
+    }
+
+    private void buildDataSetForSingleSeries(SeriesDefinition seriesDefinition)
+    {
+        Connection conn = null;
+        Statement stmt = null;
+        try
+        {
+            File seriesDir = getValidatedSeriesDirectory(seriesDefinition);
+
+            conn = DriverManager.getConnection("jdbc:relique:csv:" + seriesDir.getAbsolutePath());
+
+            final String seriesStatement = seriesDefinition.getSeriesStatement();
+
+            stmt = conn.createStatement();
+            ResultSet results = stmt.executeQuery(seriesStatement);
+
+            while (results.next())
+            {
+                Object xValue = results.getString(1);
+                Object yValue = results.getDouble(2);
+
+                _dataPointCallback.addDataPointToSeries(seriesDefinition, xValue, yValue);
+            }
+        }
+        catch (SQLException e)
+        {
+            throw new ChartingException("Failed to create chart dataset", e);
+        }
+        finally
+        {
+            if (stmt != null)
+            {
+                try
+                {
+                    stmt.close();
+                }
+                catch (SQLException e)
+                {
+                    throw new RuntimeException("Failed to close statement", e);
+                }
+            }
+            if (conn != null)
+            {
+                try
+                {
+                    conn.close();
+                }
+                catch (SQLException e)
+                {
+                    throw new RuntimeException("Failed to close connection", e);
+                }
+            }
+        }
+    }
+
+    private File getValidatedSeriesDirectory(SeriesDefinition series)
+    {
+        File seriesDir = new File(series.getSeriesDirectory());
+        if (!seriesDir.isDirectory())
+        {
+            throw new ChartingException("seriesDirectory must be a directory : " + seriesDir);
+        }
+        return seriesDir;
+    }
+
+    private static void registerCsvDriver() throws ExceptionInInitializerError
+    {
+        try
+        {
+            Class.forName("org.relique.jdbc.csv.CsvDriver");
+        }
+        catch (ClassNotFoundException e)
+        {
+            throw new RuntimeException("Could not load CSV/JDBC driver", e);
+        }
+    }
+
+}