Attachment 217770 Details for Bug 371285 – Added PMSymbolMatcher class

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[patch] Added PMSymbolMatcher class

0002-Added-PMSymbolMatcher.java.patch (text/plain), 5.08 KB, created by Camilo Bernal

on 2012-06-22 18:34:24 EDT

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Creator: Camilo Bernal

Created: 2012-06-22 18:34:24 EDT

Size: 5.08 KB

patch

obsolete

>From 8488886e2639a42fe51016f048c846215b78deab Mon Sep 17 00:00:00 2001
>From: Camilo Bernal <cabernal@redhat.com>
>Date: Fri, 22 Jun 2012 17:03:39 -0400
>Subject: [PATCH 2/2] Added PMSymbolMatcher.java
>
>PMSymbolMatcher.java class is used to build the PMSymbols matches from the
>given perf data files. For each data file, a launch configuration is
>created, which is then used to obtain the perf report TreeParent model,
>from where the PMSymbols are gathered and compared to generate the matches.
>---
> .../internal/perf/model/PMSymbolMatcher.java       |  132 ++++++++++++++++++++
> 1 files changed, 132 insertions(+), 0 deletions(-)
> create mode 100644 perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/model/PMSymbolMatcher.java
>
>diff --git a/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/model/PMSymbolMatcher.java b/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/model/PMSymbolMatcher.java
>new file mode 100644
>index 0000000..3f3fad8
>--- /dev/null
>+++ b/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/model/PMSymbolMatcher.java
>@@ -0,0 +1,132 @@
>+package org.eclipse.linuxtools.internal.perf.model;
>+
>+import java.util.ArrayList;
>+
>+import org.eclipse.core.resources.IFile;
>+import org.eclipse.debug.core.ILaunchConfiguration;
>+import org.eclipse.linuxtools.internal.perf.PerfCore;
>+import org.eclipse.linuxtools.internal.perf.PerfPlugin;
>+import org.eclipse.linuxtools.internal.perf.launch.PerfDefaultLaunchConfig;
>+
>+public class PMSymbolMatcher {
>+
>+	/**
>+	 * Get PMSymbol's from report of file
>+	 * 
>+	 * @param file
>+	 *            the file to be reported
>+	 * @return array of PMSymbol's
>+	 */
>+	private static ArrayList<PMSymbol> getSymbols(IFile file) {
>+		String projectName = file.getProject().getName();
>+
>+		PerfDefaultLaunchConfig perfConfig = new PerfDefaultLaunchConfig();
>+		ILaunchConfiguration config = perfConfig
>+				.createDefaultConfiguration(projectName);
>+
>+		PerfCore.Report(config, null, null, null, file.getLocation()
>+				.toOSString(), null);
>+
>+		// get model from reported perf data file
>+		TreeParent invisibleRoot = PerfPlugin.getDefault().getModelRoot();
>+
>+		if (invisibleRoot.getChildren().length == 0) {
>+			return null;
>+		}
>+
>+		ArrayList<PMSymbol> symbols = new ArrayList<PMSymbol>();
>+
>+		// get all PMSymbols
>+		for (TreeParent event : invisibleRoot.getChildren()) {
>+			for (TreeParent cmd : event.getChildren()) {
>+				for (TreeParent dso : cmd.getChildren()) {
>+					for (TreeParent dsoFile : dso.getChildren()) {
>+						for (TreeParent sym : dsoFile.getChildren()) {
>+							symbols.add((PMSymbol) sym);
>+						}
>+					}
>+				}
>+			}
>+		}
>+		return symbols;
>+	}
>+
>+	/**
>+	 * Get PMSymbol's matches from the two given PMSymbol arrays
>+	 * 
>+	 * @param stale
>+	 *            PMSymbol array of older PMSymbol's
>+	 * @param fresh
>+	 *            PMSymbol array of newer PMSymbol's
>+	 * @return array of PMSymbolMatch's, each containing a PMSymbol match pair
>+	 */
>+	private static ArrayList<PMSymbolMatch> buildMatches(
>+			ArrayList<PMSymbol> stale, ArrayList<PMSymbol> fresh) {
>+		ArrayList<PMSymbolMatch> result = new ArrayList<PMSymbolMatch>();
>+
>+		ArrayList<PMSymbol> staleNoMatch = (ArrayList<PMSymbol>) stale.clone();
>+
>+		// Gather all matches/non-matches of the fresh dsos against the stale.
>+		boolean added = false;
>+		for (PMSymbol freshElement : fresh) {
>+			added = true;
>+			for (PMSymbol staleElement : stale) {
>+				if (equals(freshElement, staleElement)) {
>+					result.add(new PMSymbolMatch(freshElement, staleElement));
>+					staleNoMatch.remove(staleElement);
>+					added = false;
>+					break;
>+				}
>+			}
>+			// New dso with no match in the stale list
>+			if (added) {
>+				result.add(new PMSymbolMatch((PMSymbol) freshElement, null));
>+			}
>+		}
>+		// Gather stale dsos with no match in the fresh list
>+		for (PMSymbol staleElement : staleNoMatch) {
>+			result.add(new PMSymbolMatch(null, (PMSymbol) staleElement));
>+		}
>+		return result;
>+	}
>+
>+	/**
>+	 * Build matches given two files
>+	 * 
>+	 * @param staleData
>+	 *            older data file
>+	 * @param freshData
>+	 *            newer data file
>+	 * @return array of PMSymbolMatch's, each containing a PMSymbol match pair
>+	 */
>+	public static ArrayList<PMSymbolMatch> buildResults(IFile staleData,
>+			IFile freshData) {
>+		ArrayList<PMSymbol> staleDsos = getSymbols(staleData);
>+		ArrayList<PMSymbol> freshDsos = getSymbols(freshData);
>+		if (staleDsos == null || freshDsos == null) {
>+			return null;
>+		}
>+		ArrayList<PMSymbolMatch> result = buildMatches(staleDsos, freshDsos);
>+		return result;
>+	}
>+
>+	/**
>+	 * Check TreeParent's are equal (i.e. have the same ancestors)
>+	 * 
>+	 * @param t1
>+	 *            TreeParent element
>+	 * @param t2
>+	 *            TreeParent element
>+	 * @return TreeParent's equality
>+	 */
>+	public static boolean equals(TreeParent t1, TreeParent t2) {
>+		// base case (invisible root)
>+		if ("".equals(t1.getName()) && "".equals(t2.getName())) {
>+			return true;
>+		} else if (t1.equals(t2.getName())) {
>+			return equals(t1.getParent(), t2.getParent());
>+		} else {
>+			return false;
>+		}
>+	}
>+}
>\ No newline at end of file
>-- 
>1.7.7.6
>

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