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SimpleProgressGauge.java
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177 lines (151 loc) · 4.12 KB
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package act.util;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* 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.
* #L%
*/
import act.Destroyable;
import org.osgl.$;
import org.osgl.util.E;
import java.util.ArrayList;
import java.util.List;
public class SimpleProgressGauge extends DestroyableBase implements ProgressGauge {
private String id;
private int maxHint;
private int currentSteps;
private ProgressGauge delegate;
private List<Listener> listeners = new ArrayList<>();
private SimpleProgressGauge(ProgressGauge delegate) {
this.delegate = $.notNull(delegate);
}
public SimpleProgressGauge(int maxHint) {
this.maxHint = maxHint;
}
public SimpleProgressGauge() {
maxHint = 100;
}
@Override
protected void releaseResources() {
maxHint = 100;
currentSteps = 0;
Destroyable.Util.tryDestroy(delegate);
triggerUpdateEvent();
}
@Override
public void addListener(Listener listener) {
if (null != delegate) {
delegate.addListener(listener);
} else {
listeners.add(listener);
}
}
@Override
public void updateMaxHint(int maxHint) {
if (null != delegate) {
delegate.updateMaxHint(maxHint);
} else {
this.maxHint = maxHint;
triggerUpdateEvent();
}
}
@Override
public void step() {
if (null != delegate) {
delegate.step();
} else {
currentSteps++;
triggerUpdateEvent();
}
}
@Override
public void stepBy(int steps) {
if (null != delegate) {
delegate.stepBy(steps);
} else {
currentSteps += steps;
triggerUpdateEvent();
}
}
@Override
public void stepTo(int steps) {
E.illegalArgumentIf(steps < 0);
if (null != delegate) {
delegate.stepTo(steps);
} else {
currentSteps = steps;
triggerUpdateEvent();
}
}
@Override
public int currentSteps() {
if (null != delegate) {
return delegate.currentSteps();
}
return currentSteps;
}
public int getCurrentSteps() {
return currentSteps();
}
@Override
public int maxHint() {
if (null != delegate) {
return delegate.maxHint();
}
return maxHint;
}
public int getMaxHint() {
return maxHint();
}
@Override
public void setId(String id) {
this.id = id;
}
public String getId() {
return id;
}
public int currentProgressPercent() {
if (null != delegate) {
return delegate.currentSteps() * 100 / delegate.maxHint();
}
return currentSteps * 100 / maxHint;
}
public int getProgressPercent() {
return currentProgressPercent();
}
@Override
public boolean done() {
if (null != delegate) {
return delegate.done();
}
return currentSteps == maxHint;
}
private void triggerUpdateEvent() {
for (Listener listener : listeners) {
listener.onUpdate(this);
}
}
public static SimpleProgressGauge wrap(ProgressGauge progressGauge) {
E.NPE(progressGauge);
if (progressGauge instanceof SimpleProgressGauge) {
return (SimpleProgressGauge) progressGauge;
}
return new SimpleProgressGauge(progressGauge);
}
public static String wsJobProgressTag(String jobId) {
return "__act_job_progress_" + jobId + "__";
}
}