analysis: Bug 489573: Internalize Resources view implementation

[deliverable/tracecompass.git] / analysis / org.eclipse.tracecompass.analysis.os.linux.ui / src / org / eclipse / tracecompass / analysis / os / linux / ui / views / resources / AggregateEventIterator.java

diff --git a/analysis/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/resources/AggregateEventIterator.java b/analysis/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/resources/AggregateEventIterator.java
deleted file mode 100644 (file)
index 6ecb4f9..0000000
--- a/analysis/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/resources/AggregateEventIterator.java
+++ /dev/null
@@ -1,123 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2016 Ericsson
- *
- * 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
- *******************************************************************************/
-
-package org.eclipse.tracecompass.analysis.os.linux.ui.views.resources;
-
-import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
-
-import java.util.ArrayList;
-import java.util.Comparator;
-import java.util.Iterator;
-import java.util.List;
-import java.util.NoSuchElementException;
-
-import org.eclipse.jdt.annotation.NonNull;
-import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeEvent;
-import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
-
-/**
- * Aggregate TimeEvent iterator, this takes multiple streams of events and
- * merges them into one single time event stream
- *
- * @author Matthew Khouzam
- * @since 2.0
- */
-public class AggregateEventIterator implements Iterator<@NonNull ITimeEvent> {
-
-    private final List<@NonNull CachingIterator> fIterators = new ArrayList<>();
-
-    private final Comparator<ITimeEvent> fComparator;
-
-    /**
-     * Constructor
-     *
-     * @param contributors
-     *            the entries to aggregate
-     * @param comparator
-     *            The comparator to sort time events
-     */
-    public AggregateEventIterator(@NonNull List<ITimeGraphEntry> contributors, Comparator<ITimeEvent> comparator) {
-        this(contributors, Long.MIN_VALUE, Long.MAX_VALUE, 1, comparator);
-    }
-
-    /**
-     * Constructor with a time range
-     *
-     * @param contributors
-     *            the entries to aggregate
-     * @param startTime
-     *            start time in nanoseconds
-     * @param endTime
-     *            stop time in nanoseconds
-     * @param duration
-     *            duration of one pixel in nanoseconds
-     * @param comparator
-     *            The comparator to sort time events
-     */
-    public AggregateEventIterator(@NonNull List<ITimeGraphEntry> contributors, long startTime, long endTime, long duration, Comparator<ITimeEvent> comparator) {
-        fComparator = comparator;
-        contributors.forEach(timeGraphEntry -> {
-            final Iterator<@NonNull ITimeEvent> timeEventsIterator = timeGraphEntry.getTimeEventsIterator(startTime, endTime, duration);
-            if (timeEventsIterator != null) {
-                CachingIterator iterator = new CachingIterator(timeEventsIterator, comparator);
-                if (iterator.hasNext()) {
-                    fIterators.add(iterator);
-                }
-            }
-        });
-    }
-
-    @Override
-    public boolean hasNext() {
-        return !fIterators.isEmpty();
-    }
-
-    @Override
-    public @NonNull ITimeEvent next() {
-
-        final List<@NonNull CachingIterator> iterators = fIterators;
-        if (iterators.isEmpty()) {
-            throw new NoSuchElementException("Aggregate iterator is empty"); //$NON-NLS-1$
-        }
-
-        ITimeEvent winner = iterators.get(0).peek();
-        long trimTime = winner.getTime() + winner.getDuration();
-        for (int i = 1; i < iterators.size(); i++) {
-            CachingIterator iterator = iterators.get(i);
-            ITimeEvent candidate = iterator.peek();
-            if (candidate.getTime() < winner.getTime()) {
-                trimTime = Math.min(winner.getTime(), candidate.getTime() + candidate.getDuration());
-                winner = candidate;
-            } else if (candidate.getTime() == winner.getTime()) {
-                trimTime = Math.min(trimTime, candidate.getTime() + candidate.getDuration());
-                if (fComparator.compare(candidate, winner) < 0) {
-                    winner = candidate;
-                }
-            } else {
-                trimTime = Math.min(trimTime, candidate.getTime());
-            }
-        }
-
-        /* Trim the next event before the trim time, if necessary. */
-        final ITimeEvent next = (trimTime < (winner.getDuration() + winner.getTime())) ? winner.splitBefore(trimTime) : winner;
-
-        /* Trim all remaining events after the trim time, if necessary. */
-        Iterator<CachingIterator> iteratorIterator = iterators.iterator();
-        while (iteratorIterator.hasNext()) {
-            CachingIterator iterator = iteratorIterator.next();
-            iterator.trim(trimTime);
-            /* Remove empty iterators from the list */
-            if (!iterator.hasNext()) {
-                iteratorIterator.remove();
-            }
-        }
-
-        return checkNotNull(next);
-    }
-}
\ No newline at end of file