com.freescale.deadlockpreventer.agent.StatisticsUtil.java Source code

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Here is the source code for com.freescale.deadlockpreventer.agent.StatisticsUtil.java

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/*******************************************************************************
 * Copyright (c) 2010 Freescale Semiconductor.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Serge Beauchamp (Freescale Semiconductor) - initial API and implementation
 *******************************************************************************/
package com.freescale.deadlockpreventer.agent;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.ui.PlatformUI;

import com.freescale.deadlockpreventer.ILock;
import com.freescale.deadlockpreventer.Logger;
import com.freescale.deadlockpreventer.QueryService.ITransaction;

public class StatisticsUtil {

    public static void export(final ITransaction transaction) {
        FileDialog dialog = new FileDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell());
        String file = dialog.open();
        if (file != null) {
            File outputFile = new File(file);
            if (!outputFile.getParentFile().exists())
                outputFile.getParentFile().mkdirs();
            try {
                if (!outputFile.exists())
                    outputFile.createNewFile();
                final FileWriter writer = new FileWriter(outputFile);

                new ProgressMonitorDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell()).run(true,
                        true, new IRunnableWithProgress() {
                            @Override
                            public void run(IProgressMonitor monitor)
                                    throws InvocationTargetException, InterruptedException {
                                int count = transaction.getLockCount();
                                monitor.beginTask("Downloading statistics...", count);
                                int index = 0;
                                int interval = 100;
                                while (index < count) {
                                    ILock[] tmp = transaction.getLocks(index, Math.min(index + interval, count));
                                    monitor.worked(tmp.length);
                                    Logger.dumpLockInformation(tmp, writer);
                                    index += interval;
                                    if (monitor.isCanceled())
                                        break;
                                }
                                monitor.done();
                            }
                        });
                writer.close();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (InvocationTargetException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}