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CCTFlattener.java

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package org.netbeans.lib.profiler.results.cpu.cct;

import org.netbeans.lib.profiler.ProfilerClient;
import org.netbeans.lib.profiler.global.InstrumentationFilter;
import org.netbeans.lib.profiler.global.ProfilingSessionStatus;
import org.netbeans.lib.profiler.results.cpu.FlatProfileContainer;
import org.netbeans.lib.profiler.results.cpu.FlatProfileContainerFree;
import org.netbeans.lib.profiler.results.cpu.TimingAdjusterOld;
import org.netbeans.lib.profiler.results.cpu.cct.nodes.MethodCPUCCTNode;
import org.netbeans.lib.profiler.results.cpu.cct.nodes.ThreadCPUCCTNode;
import org.netbeans.lib.profiler.results.cpu.cct.nodes.TimedCPUCCTNode;
import java.util.Stack;
import java.util.logging.Level;
import java.util.logging.Logger;


/**
 *
 * @author Jaroslav Bachorik
 */
00061 public class CCTFlattener extends CPUCCTVisitorAdapter {
    //~ Static fields/initializers -----------------------------------------------------------------------------------------------

    private static final Logger LOGGER = Logger.getLogger(CCTFlattener.class.getName());

    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    private final Object containerGuard = new Object();

    // @GuardedBy containerGuard
    private FlatProfileContainer container;
    private ProfilerClient client;
    private Stack parentStack;
    private int[] invDiff;
    private int[] invPM;
    private int[] nCalleeInvocations;
    private long[] timePM0;
    private long[] timePM1;
    private int nMethods;

    private CCTResultsFilter currentFilter = null;
    
    //~ Constructors -------------------------------------------------------------------------------------------------------------

    public CCTFlattener(ProfilerClient client, CCTResultsFilter filter) {
        this.client = client;
        parentStack = new Stack();
        this.currentFilter = filter;
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public FlatProfileContainer getFlatProfile() {
        synchronized (containerGuard) {
            return container;
        }
    }

    public void afterWalk() {
        ProfilingSessionStatus status = client.getStatus();

        // Now convert the data into microseconds
        long wholeGraphTime0 = 0;

        // Now convert the data into microseconds
        long wholeGraphTime1 = 0;
        long totalNInv = 0;

        for (int i = 0; i < nMethods; i++) {
            double time = TimingAdjusterOld.getInstance(status)
                                           .adjustTime(timePM0[i], (invPM[i] + invDiff[i]), (nCalleeInvocations[i] + invDiff[i]),
                                                       false);

            if (time < 0) {
                // in some cases the combination of cleansing the time by calibration and subtracting wait/sleep
                // times can lead to <0 time
                // see http://profiler.netbeans.org/issues/show_bug.cgi?id=64416
                time = 0;
            }

            timePM0[i] = (long) time;

            // don't include the Thread time into wholegraphtime
            if (i > 0) {
                wholeGraphTime0 += time;
            }

            if (status.collectingTwoTimeStamps()) {
                time = TimingAdjusterOld.getInstance(status)
                                        .adjustTime(timePM1[i], (invPM[i] + invDiff[i]), (nCalleeInvocations[i] + invDiff[i]),
                                                    true);
                timePM1[i] = (long) time;

                // don't include the Thread time into wholegraphtime
                if (i > 0) {
                    wholeGraphTime1 += time;
                }
            }

            totalNInv += invPM[i];
        }

        synchronized (containerGuard) {
            container = new FlatProfileContainerFree(status, timePM0, timePM1, invPM, new char[0], wholeGraphTime0,
                                                     wholeGraphTime1, invPM.length);
        }

        timePM0 = timePM1 = null;
        invPM = invDiff = nCalleeInvocations = null;
        parentStack.clear();
//        currentFilter = null;
    }

    public void beforeWalk() {
        ProfilingSessionStatus status = client.getStatus();
        nMethods = status.getNInstrMethods();
        timePM0 = new long[nMethods];
        timePM1 = new long[status.collectingTwoTimeStamps() ? nMethods : 0];
        invPM = new int[nMethods];
        invDiff = new int[nMethods];
        nCalleeInvocations = new int[nMethods];
        parentStack.clear();

//        currentFilter = (CCTResultsFilter)Lookup.getDefault().lookup(CCTResultsFilter.class);
        
        synchronized (containerGuard) {
            container = null;
        }
    }

    public void visit(MethodCPUCCTNode node) {
        ProfilingSessionStatus status = client.getStatus();
        InstrumentationFilter filter = client.getSettings().getInstrumentationFilter();

        MethodCPUCCTNode currentParent = parentStack.isEmpty() ? null : (MethodCPUCCTNode) parentStack.peek();
        boolean filteredOut = (node.getFilteredStatus() == TimedCPUCCTNode.FILTERED_YES); // filtered out by rootmethod/markermethod rules

        if (!filteredOut && (node.getFilteredStatus() == TimedCPUCCTNode.FILTERED_MAYBE)) { // filter out all methods not complying to instrumentation filter & secure to remove

            String jvmClassName = status.getInstrMethodClasses()[node.getMethodId()].replace('.', '/');

            if (!filter.passesFilter(jvmClassName)) {
                filteredOut = true;
            }
        }

        if (!filteredOut && (currentFilter != null)) {
            filteredOut = !currentFilter.passesFilter(); // finally use the mark filter
        }

        if (LOGGER.isLoggable(Level.FINEST)) {
            LOGGER.finest("Processing runtime node: " // NOI18N
                          + status.getInstrMethodClasses()[node.getMethodId()] + "."
                          + status.getInstrMethodNames()[node.getMethodId()] + "; filtered=" + filteredOut); // NOI18N

            String parentInfo = (currentParent != null)
                                ? (status.getInstrMethodClasses()[currentParent.getMethodId()] + "."
                                + status.getInstrMethodNames()[currentParent.getMethodId()]) : "none"; // NOI18N
            LOGGER.finest("Currently used parent: " + parentInfo); // NOI18N
        }

        if (filteredOut) {
            if ((currentParent != null) && !currentParent.isRoot()) {
                invDiff[currentParent.getMethodId()] += node.getNCalls();

                timePM0[currentParent.getMethodId()] += node.getNetTime0();

                if (status.collectingTwoTimeStamps()) {
                    timePM1[currentParent.getMethodId()] += node.getNetTime1();
                }
            }
        } else {
            timePM0[node.getMethodId()] += node.getNetTime0();

            if (status.collectingTwoTimeStamps()) {
                timePM1[node.getMethodId()] += node.getNetTime1();
            }

            invPM[node.getMethodId()] += node.getNCalls();

            if ((currentParent != null) && !currentParent.isRoot()) {
                nCalleeInvocations[currentParent.getMethodId()] += node.getNCalls();
            }

            currentParent = node;
        }

        parentStack.push(currentParent);
    }

    public void visitPost(MethodCPUCCTNode node) {
        parentStack.pop();
    }

    public void visitPost(ThreadCPUCCTNode node) {
        parentStack.clear();
    }
}

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