com.speedment.runtime.core.internal.util.ProgressMeasurerImpl Maven / Gradle / Ivy
/**
*
* Copyright (c) 2006-2019, Speedment, Inc. All Rights Reserved.
*
* 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 com.speedment.runtime.core.internal.util;
import com.speedment.runtime.core.util.ProgressMeasure;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Consumer;
import static java.util.Collections.newSetFromMap;
import static java.util.Objects.requireNonNull;
/**
*
* @author Per Minborg
*/
public final class ProgressMeasurerImpl implements ProgressMeasure {
private final Set> listeners;
private double progress;
private String currentAction;
public ProgressMeasurerImpl() {
listeners = newSetFromMap(new ConcurrentHashMap<>());
progress = ProgressMeasure.INDETERMINATE;
currentAction = "";
}
@Override
public void setProgress(double value) {
this.progress = value;
callListeners();
}
@Override
public double getProgress() {
return progress;
}
@Override
public void setCurrentAction(String action) {
this.currentAction = action;
callListeners();
}
@Override
public String getCurrentAction() {
return currentAction;
}
@Override
public ProgressMeasure addListener(Consumer listener) {
requireNonNull(listener);
listeners.add(listener);
return this;
}
private void callListeners() {
listeners.forEach(c -> c.accept(this));
}
}