Command Line report generator

README

@@ -1,4 +1,4 @@
-GCViewer 1.31
+GCViewer 1.31 fork with cmdline interface
 =============
 
 GCViewer is a little tool that visualizes verbose GC output
@@ -8,6 +8,10 @@ is free software released under GNU LGPL.
 You can start GCViewer by simply double-clicking on gcviewer-1.3x.jar
 or running java -jar gcviewer-1.3x.jar (it needs a java 1.6 vm to run).
 
+For a cmdline based report summary just type:
+java -jar gcviewer-1.3x.jar gc.log summary.csv
+to gegenrate a report. 
+
 
 Supported verbose:gc formats are:
 

pom.xml

@@ -92,7 +92,7 @@
 				<configuration>
 					<archive>
 						<manifest>
-							<mainClass>com.tagtraum.perf.gcviewer.GCViewer</mainClass>
+							<mainClass>com.tagtraum.perf.gcviewer.Main</mainClass>
 							<addClasspath>true</addClasspath>
 						</manifest>
 					</archive>

src/main/java/com/tagtraum/perf/gcviewer/Main.java

@@ -0,0 +1,62 @@
+package com.tagtraum.perf.gcviewer;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+
+import javax.swing.SwingUtilities;
+
+import com.tagtraum.perf.gcviewer.exp.summary.SummaryExporter;
+import com.tagtraum.perf.gcviewer.imp.DataReader;
+import com.tagtraum.perf.gcviewer.imp.DataReaderFactory;
+import com.tagtraum.perf.gcviewer.model.GCModel;
+
+public class Main {
+
+	public static void main(final String[] args) {
+        if (args.length == 2) {
+        	final String gcfile = args[0];
+        	final String summaryFilePath = args[1];
+
+            //export summary:
+            try {
+                exportSummary(summaryFilePath, gcfile);
+            }
+            catch(IOException e1) {
+                e1.printStackTrace();
+            }
+            //exit: quick & dirty, but does not really matter
+            System.exit(0);
+
+        } else if (args.length > 1) {
+            usage();
+        } else {
+        	GCViewer.main(args);
+        }
+    }
+
+	private static void exportSummary(String summaryFilePath, String gcFilename) throws IOException
+    {
+        SummaryExporter exporter = new SummaryExporter();
+    	GCModel model = loadModel(new File(gcFilename).toURI().toURL());
+        exporter.exportSummaryFromModel(model, gcFilename, summaryFilePath);
+	}
+
+    private static GCModel loadModel(final URL url) throws IOException {
+		DataReaderFactory factory = new DataReaderFactory();
+	    final InputStream in = url.openStream();
+	    final DataReader reader = factory.getDataReader(in);
+	    final GCModel model = reader.read();
+	    model.setURL(url);
+	    return model;
+
+    }
+
+	private static void usage() {
+		System.out.println("Welcome to GCViewer with cmdline");
+        System.out.println("java -jar gcviewer.jar [<gc-log-file>] [<export.csv>]");
+    }
+
+
+}

src/main/java/com/tagtraum/perf/gcviewer/exp/summary/CsvSummaryExportFormatter.java

@@ -0,0 +1,21 @@
+/**
+ * 
+ */
+package com.tagtraum.perf.gcviewer.exp.summary;
+
+/**
+ * @author sean
+ *
+ */
+public class CsvSummaryExportFormatter implements ISummaryExportFormatter {
+
+	private String separator = ", ";
+
+	/* (non-Javadoc)
+	 * @see com.tagtraum.perf.gcviewer.exp.ISummaryExportFormatter#exportValue(java.lang.String, java.lang.String)
+	 */
+	//@Override
+	public String formatLine(String tag, String value, String units) {
+        return tag + separator + value + separator + units;
+	}
+}

src/main/java/com/tagtraum/perf/gcviewer/exp/summary/ISummaryExportFormatter.java

@@ -0,0 +1,12 @@
+/**
+ * 
+ */
+package com.tagtraum.perf.gcviewer.exp.summary;
+
+/**
+ * @author sean
+ *
+ */
+public interface ISummaryExportFormatter {
+    String formatLine(String tag, String value, String units);
+}