/*
* Licensed 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 openbook.client;
import java.awt.Color;
import java.io.PrintStream;
import javax.swing.SwingUtilities;
import javax.swing.text.AttributeSet;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;
import jpa.tools.swing.GraphicOutputStream;
import org.apache.openjpa.lib.jdbc.AbstractJDBCListener;
import org.apache.openjpa.lib.jdbc.JDBCEvent;
/**
* Logs SQL statement to a graphic console.
*
* @author Pinaki Poddar
*
*/
public class SQLLogger extends AbstractJDBCListener {
private PrintStream out = null;
private static AttributeSet red, green, blue, magenta;
static {
StyleContext ctx = StyleContext.getDefaultStyleContext();
red = ctx.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, Color.RED);
green = ctx.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, Color.GREEN);
blue = ctx.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, Color.BLUE);
magenta = ctx.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, Color.MAGENTA);
}
public void setOutput(GraphicOutputStream o) {
out = new PrintStream(o, true);
o.registerStyle("INSERT", green);
o.registerStyle("SELECT", blue);
o.registerStyle("UPDATE", magenta);
o.registerStyle("DELETE", red);
}
@Override
public void beforeExecuteStatement(final JDBCEvent event) {
if (out == null)
return;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
out.println(event.getSQL());
}
});
}
}