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 / CachingIterator.java

diff --git a/analysis/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/resources/CachingIterator.java b/analysis/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/resources/CachingIterator.java
deleted file mode 100644 (file)
index 46c4b6b..0000000
--- a/analysis/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/resources/CachingIterator.java
+++ /dev/null
@@ -1,90 +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 java.util.Comparator;
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-
-import org.eclipse.jdt.annotation.NonNull;
-import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeEvent;
-
-/**
- * Caching iterator of time events with a couple extras.
- * <ul>
- * <li>peek() allows reading the head without removing it</li>
- * <li>trim() allows removing a bit of the first event</li>
- * </ul>
- *
- * @author Matthew Khouzam
- */
-class CachingIterator implements Iterator<@NonNull ITimeEvent>, Comparable<CachingIterator> {
-    private ITimeEvent fEvent;
-    private @NonNull Iterator<@NonNull ? extends ITimeEvent> fIterator;
-    private final Comparator<ITimeEvent> fComparator;
-
-    public CachingIterator(@NonNull Iterator<@NonNull ? extends ITimeEvent> iterator, Comparator<ITimeEvent> comparator) {
-        fIterator = iterator;
-        fComparator = comparator;
-        fEvent = iterator.hasNext() ? iterator.next() : null;
-    }
-
-    @Override
-    public ITimeEvent next() {
-        ITimeEvent retVal = fEvent;
-        fEvent = fIterator.hasNext() ? fIterator.next() : null;
-        if (retVal == null) {
-            throw new NoSuchElementException("Iterator is empty"); //$NON-NLS-1$
-        }
-        return retVal;
-    }
-
-    @Override
-    public boolean hasNext() {
-        return fEvent != null;
-    }
-
-    /**
-     * Retrieves, but does not remove, the next element of this iterator, or
-     * returns {@code null} if this iterator does not have a next.
-     *
-     * @return the next element of the iterator
-     */
-    public ITimeEvent peek() {
-        return fEvent;
-    }
-
-    @Override
-    public int compareTo(CachingIterator o) {
-        final ITimeEvent myEvent = peek();
-        final ITimeEvent otherEvent = o.peek();
-        return fComparator.compare(myEvent, otherEvent);
-    }
-
-    /**
-     * Trims the next element in the iterator to be after a cut-off time.
-     *
-     * @param time
-     *            the cut-off time
-     * @return true if there was a trim
-     */
-    public boolean trim(long time) {
-        if (time <= fEvent.getTime()) {
-            return false;
-        }
-        if (time < fEvent.getTime() + fEvent.getDuration()) {
-            fEvent = fEvent.splitAfter(time);
-            return true;
-        }
-        fEvent = fIterator.hasNext() ? fIterator.next() : null;
-        return true;
-    }
-
-}
\ No newline at end of file