lttng/org.lttng.scope.lttng.kernel.core/src/org/lttng/scope/lttng/kernel/core/views/timegraph/resources/ResourcesBaseModelProvider.java

   1 /*
   2  * Copyright (C) 2017 EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
   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
  10 package org.lttng.scope.lttng.kernel.core.views.timegraph.resources;
  11
  12 import java.util.Comparator;
  13 import java.util.function.Function;
  14 import java.util.function.Supplier;
  15
  16 import org.lttng.scope.lttng.kernel.core.analysis.os.KernelAnalysisModule;
  17 import org.lttng.scope.lttng.kernel.core.views.timegraph.resources.elements.ResourcesIrqTreeElement;
  18 import org.lttng.scope.lttng.kernel.core.views.timegraph.resources.elements.ResourcesIrqTreeElement.IrqType;
  19 import org.lttng.scope.tmf2.views.core.timegraph.model.provider.states.ITimeGraphModelStateProvider;
  20 import org.lttng.scope.tmf2.views.core.timegraph.model.provider.statesystem.StateSystemModelProvider;
  21 import org.lttng.scope.tmf2.views.core.timegraph.model.render.tree.TimeGraphTreeRender;
  22
  23 /**
  24  * Base class for Resources (for now, CPUs and IRQs) model providers.
  25  *
  26  * Implementations of this class can define the hierarchy the resources are to
  27  * be presented in, for example CPUs/IRQs or IRQs/CPUs.
  28  *
  29  * @author Alexandre Montplaisir
  30  */
  31 public abstract class ResourcesBaseModelProvider extends StateSystemModelProvider {
  32
  33     private static final Supplier<ITimeGraphModelStateProvider> STATE_PROVIDER = () -> {
  34         return new ResourcesModelStateProvider();
  35     };
  36
  37     /**
  38      * Comparator to sort IRQ entries in the tree model.
  39      *
  40      * Shows (hardware) IRQs first, followed by Soft IRQs. Within each section they
  41      * are sorted by numerical (not String!) value of their IRQ number.
  42      */
  43     protected static final Comparator<ResourcesIrqTreeElement> IRQ_SORTER = Comparator
  44             .<ResourcesIrqTreeElement, IrqType> comparing(treeElem -> treeElem.getIrqType())
  45             .thenComparingInt(treeElem -> treeElem.getIrqNumber());
  46
  47     /**
  48      * Constructor
  49      *
  50      * @param providerName
  51      *            Name of this provider
  52      * @param treeRenderFunction
  53      *            Function to generate a tree render from a given tree context
  54      */
  55     public ResourcesBaseModelProvider(String providerName, Function<TreeRenderContext, TimeGraphTreeRender> treeRenderFunction) {
  56         super(providerName,
  57                 null,
  58                 null,
  59                 STATE_PROVIDER.get(),
  60                 null,
  61                 /* Parameters specific to state system render providers */
  62                 KernelAnalysisModule.ID,
  63                 treeRenderFunction);
  64     }
  65
  66 }