/*
* #%L
* gitools-core
* %%
* Copyright (C) 2013 Universitat Pompeu Fabra - Biomedical Genomics group
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
package org.gitools.matrix.model.iterable;
import com.google.common.collect.Iterators;
import org.gitools.api.analysis.IProgressMonitor;
import org.gitools.api.matrix.*;
import org.gitools.utils.ComparableComparator;
import java.util.*;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
public abstract class AbstractIterable<T> implements IMatrixIterable<T> {
private static int CORES = Runtime.getRuntime().availableProcessors();
private static ExecutorService EXECUTOR = Executors.newFixedThreadPool(CORES);
@Override
public abstract long size();
@Override
public abstract IMatrixPosition getPosition();
@Override
public IMatrixIterable<T> filter(IMatrixPredicate<T> filter) {
return new FilterIterable<>(this, filter);
}
@Override
public <F> IMatrixIterable<F> transform(IMatrixFunction<F, T> function) {
return new TransformIterable<>(this, function);
}
@Override
public IMatrixIterable<T> sort() {
return sort(ComparableComparator.getInstance());
}
@Override
public IMatrixIterable<T> sort(Comparator<T> comparator) {
return new SortIterable<>(this, comparator);
}
@Override
public IMatrixIterable<T> monitor(IProgressMonitor monitor, String title) {
return new MonitorMatrixIterable<>(this, monitor, title);
}
@Override
public IMatrixIterable<T> monitor(IProgressMonitor monitor) {
return monitor(monitor, null);
}
@Override
public void store(final IMatrix output, final IMatrixPositionMapping mapping, final ILayerAdapter<T> layerAdapter) {
List<Future<?>> tasks = new ArrayList<>(CORES);
final Iterator<T> iterator = iterator();
for (int c=0; c < CORES; c++) {
tasks.add(EXECUTOR.submit(new Runnable() {
@Override
public void run() {
IMatrixPosition position = output.newPosition();
while (true) {
T value;
synchronized (AbstractIterable.this) {
if (iterator.hasNext()) {
value = iterator.next();
} else {
break;
}
}
mapping.map(getPosition(), position);
layerAdapter.set(output, value, position);
}
}
}));
}
IMatrixPosition position = output.newPosition();
while (true) {
T value;
synchronized (AbstractIterable.this) {
if (iterator.hasNext()) {
value = iterator.next();
} else {
break;
}
}
mapping.map(getPosition(), position);
layerAdapter.set(output, value, position);
}
// Wait other tasks to finish
boolean done = false;
while(!done) {
done = true;
for (Future task : tasks) {
if (task.isDone()) {
continue;
}
done = false;
}
}
}
@Override
public void store(final IMatrix output, final IMatrixPositionMapping mapping, final IMatrixLayer<T> layer) {
List<Future<?>> tasks = new ArrayList<>(CORES);
final Iterator<T> iterator = iterator();
for (int c=0; c < CORES; c++) {
tasks.add(EXECUTOR.submit(new Runnable() {
@Override
public void run() {
IMatrixPosition position = output.newPosition();
while (true) {
T value;
synchronized (AbstractIterable.this) {
if (iterator.hasNext()) {
value = iterator.next();
} else {
break;
}
}
mapping.map(getPosition(), position);
output.set(layer, value, position);
}
}
}));
}
IMatrixPosition position = output.newPosition();
while (true) {
T value;
synchronized (AbstractIterable.this) {
if (iterator.hasNext()) {
value = iterator.next();
} else {
break;
}
}
mapping.map(getPosition(), position);
output.set(layer, value, position);
}
// Wait other tasks to finish
boolean done = false;
while(!done) {
done = true;
for (Future task : tasks) {
if (task.isDone()) {
continue;
}
done = false;
}
}
}
@Override
public void store(final Collection<T> output) {
List<Future<?>> tasks = new ArrayList<>(CORES);
final Iterator<T> iterator = iterator();
for (int c=0; c < CORES; c++) {
tasks.add(EXECUTOR.submit(new Runnable() {
@Override
public void run() {
while (true) {
T value;
synchronized (AbstractIterable.this) {
if (iterator.hasNext()) {
value = iterator.next();
} else {
break;
}
}
output.add(value);
}
}
}));
}
while (true) {
T value;
synchronized (AbstractIterable.this) {
if (iterator.hasNext()) {
value = iterator.next();
} else {
break;
}
}
output.add(value);
}
// Wait other tasks to finish
boolean done = false;
while(!done) {
done = true;
for (Future task : tasks) {
if (task.isDone()) {
continue;
}
done = false;
}
}
}
@Override
public void store(IMatrix output, ILayerAdapter<T> layerAdapter) {
store(output, new NoMapping(), layerAdapter);
}
@Override
public void store(IMatrix output, IMatrixLayer<T> layer) {
store(output, new NoMapping(), layer);
}
@Override
public int count() {
return Iterators.size(iterator());
}
}