/*
* Copyright 2014 MovingBlocks
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.terasology.rendering.nui.layers.ingame.metrics;
import com.google.common.collect.Lists;
import gnu.trove.list.TDoubleList;
import gnu.trove.list.array.TDoubleArrayList;
import gnu.trove.map.TObjectDoubleMap;
import gnu.trove.procedure.TObjectDoubleProcedure;
import java.text.NumberFormat;
import java.util.List;
/**
* @author Immortius
*/
public abstract class TimeMetricsMode extends MetricsMode {
private int limit;
private NumberFormat format;
private String unit = "ms";
public TimeMetricsMode(String name, int limit) {
super(name);
this.limit = limit;
format = NumberFormat.getInstance();
format.setMaximumFractionDigits(2);
}
public TimeMetricsMode(String name, int limit, String unit) {
this(name, limit);
this.limit = limit;
}
public String getMetrics() {
StringBuilder builder = new StringBuilder();
builder.append(getName());
builder.append("\n");
displayMetrics(gatherMetrics(), builder);
return builder.toString();
}
protected abstract TObjectDoubleMap<String> gatherMetrics();
private void displayMetrics(TObjectDoubleMap<String> metrics, StringBuilder builder) {
final List<String> activities = Lists.newArrayList();
final TDoubleList values = new TDoubleArrayList();
sortMetrics(metrics, activities, values);
for (int i = 0; i < limit && i < activities.size(); ++i) {
builder.append(activities.get(i));
builder.append(": ");
builder.append(format.format(values.get(i)));
builder.append(unit);
builder.append("\n");
}
}
private void sortMetrics(TObjectDoubleMap<String> metrics, final List<String> activities, final TDoubleList values) {
metrics.forEachEntry(new TObjectDoubleProcedure<String>() {
public boolean execute(String s, double v) {
boolean inserted = false;
for (int i = 0; i < values.size() && i < limit; i++) {
if (v > values.get(i)) {
values.insert(i, v);
activities.add(i, s);
inserted = true;
break;
}
}
if (!inserted && values.size() < limit) {
activities.add(s);
values.add(v);
}
return true;
}
});
}
}