| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2009, 2011 Ericsson |
| 3 | * |
| 4 | * All rights reserved. This program and the accompanying materials are |
| 5 | * made available under the terms of the Eclipse Public License v1.0 which |
| 6 | * accompanies this distribution, and is available at |
| 7 | * http://www.eclipse.org/legal/epl-v10.html |
| 8 | * |
| 9 | * Contributors: |
| 10 | * William Bourque - Initial API and implementation |
| 11 | * Yuriy Vashchuk - Heritage correction. |
| 12 | * Francois Chouinard - Cleanup and refactoring |
| 13 | *******************************************************************************/ |
| 14 | |
| 15 | package org.eclipse.linuxtools.lttng.ui.views.histogram; |
| 16 | |
| 17 | import org.eclipse.linuxtools.lttng.core.LttngConstants; |
| 18 | import org.eclipse.linuxtools.lttng.core.event.LttngEvent; |
| 19 | import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange; |
| 20 | import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest; |
| 21 | import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest; |
| 22 | |
| 23 | /** |
| 24 | * <b><u>HistogramRequest</u></b> |
| 25 | * <p> |
| 26 | */ |
| 27 | public class HistogramRequest extends TmfEventRequest<LttngEvent> { |
| 28 | |
| 29 | // ------------------------------------------------------------------------ |
| 30 | // Attributes |
| 31 | // ------------------------------------------------------------------------ |
| 32 | |
| 33 | private final Histogram fHistogram; |
| 34 | |
| 35 | // ------------------------------------------------------------------------ |
| 36 | // Constructor |
| 37 | // ------------------------------------------------------------------------ |
| 38 | |
| 39 | public HistogramRequest(Histogram histogram, TmfTimeRange range, int rank, int nbEvents, ITmfDataRequest.ExecutionType execType) { |
| 40 | super(LttngEvent.class, range, rank, nbEvents, LttngConstants.DEFAULT_BLOCK_SIZE, execType); |
| 41 | fHistogram = histogram; |
| 42 | } |
| 43 | |
| 44 | public HistogramRequest(Histogram histogram, TmfTimeRange range, ITmfDataRequest.ExecutionType execType) { |
| 45 | this(histogram, range, 0, ALL_DATA, execType); |
| 46 | } |
| 47 | |
| 48 | public HistogramRequest(Histogram histogram, TmfTimeRange range, int rank, ITmfDataRequest.ExecutionType execType) { |
| 49 | this(histogram, range, rank, ALL_DATA, execType); |
| 50 | } |
| 51 | |
| 52 | // ------------------------------------------------------------------------ |
| 53 | // TmfEventRequest |
| 54 | // ------------------------------------------------------------------------ |
| 55 | |
| 56 | @Override |
| 57 | public void handleData(LttngEvent event) { |
| 58 | super.handleData(event); |
| 59 | if (event != null) { |
| 60 | long timestamp = event.getTimestamp().getValue(); |
| 61 | fHistogram.countEvent(timestamp); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | @Override |
| 66 | public void handleCompleted() { |
| 67 | fHistogram.refresh(); |
| 68 | super.handleCompleted(); |
| 69 | } |
| 70 | |
| 71 | @Override |
| 72 | public void handleCancel() { |
| 73 | fHistogram.refresh(); |
| 74 | super.handleCancel(); |
| 75 | } |
| 76 | |
| 77 | } |