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...g/springframework/shell/samples/catalog/scenario/progress/SimpleProgressViewScenario.java
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/* | ||
* Copyright 2024 the original author or authors. | ||
* | ||
* 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 | ||
* | ||
* https://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.springframework.shell.samples.catalog.scenario.progress; | ||
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import java.time.Duration; | ||
import java.util.List; | ||
import java.util.ListIterator; | ||
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import reactor.core.publisher.Flux; | ||
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import org.springframework.messaging.Message; | ||
import org.springframework.messaging.support.MessageBuilder; | ||
import org.springframework.shell.component.message.ShellMessageHeaderAccessor; | ||
import org.springframework.shell.component.message.StaticShellMessageHeaderAccessor; | ||
import org.springframework.shell.component.view.control.GridView; | ||
import org.springframework.shell.component.view.control.ProgressView; | ||
import org.springframework.shell.component.view.control.ProgressView.ProgressViewItem; | ||
import org.springframework.shell.component.view.control.View; | ||
import org.springframework.shell.component.view.event.EventLoop; | ||
import org.springframework.shell.geom.HorizontalAlign; | ||
import org.springframework.shell.samples.catalog.scenario.AbstractScenario; | ||
import org.springframework.shell.samples.catalog.scenario.Scenario; | ||
import org.springframework.shell.samples.catalog.scenario.ScenarioComponent; | ||
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@ScenarioComponent(name = "Simple progressview", description = "ProgressView sample", category = { | ||
Scenario.CATEGORY_PROGRESSVIEW }) | ||
public class SimpleProgressViewScenario extends AbstractScenario { | ||
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@Override | ||
public ScenarioContext buildContext() { | ||
ContextData contextData = buildContextData(); | ||
return ScenarioContext.of(contextData.view(), contextData.start(), contextData.stop()); | ||
} | ||
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private record ContextData(View view, List<ProgressView> progress, Runnable start, Runnable stop) { | ||
} | ||
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private ContextData buildContextData() { | ||
List<ProgressView> views = List.of(plain(), spinnerOnly(), percentOnly(), spreadAlign()); | ||
GridView grid = new GridView(); | ||
grid.setShowBorders(true); | ||
configure(grid); | ||
int[] rows = new int[views.size()]; | ||
for (int i = 0; i < rows.length; i++) { | ||
rows[i] = 1; | ||
} | ||
grid.setRowSize(rows); | ||
grid.setColumnSize(0); | ||
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ListIterator<ProgressView> iter = views.listIterator(); | ||
while (iter.hasNext()) { | ||
ProgressView view = iter.next(); | ||
configure(view); | ||
view.start(); | ||
grid.addItem(view, iter.previousIndex(), 0, 1, 1, 0, 0); | ||
} | ||
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EventLoop eventLoop = getEventloop(); | ||
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Flux<Message<?>> ticks = Flux.interval(Duration.ofMillis(500)).take(100).map(l -> { | ||
Message<Long> message = MessageBuilder | ||
.withPayload(l) | ||
.setHeader(ShellMessageHeaderAccessor.EVENT_TYPE, EventLoop.Type.USER) | ||
.setHeader("SimpleProgressViewScenario", "") | ||
.build(); | ||
return message; | ||
}); | ||
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eventLoop.dispatch(ticks); | ||
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eventLoop.onDestroy(eventLoop.events() | ||
.filter(m -> EventLoop.Type.USER.equals(StaticShellMessageHeaderAccessor.getEventType(m)) | ||
&& m.getHeaders().containsKey("SimpleProgressViewScenario")) | ||
.subscribe(m -> { | ||
views.forEach(v -> { | ||
v.tickAdvance(1); | ||
}); | ||
})); | ||
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Runnable stop = () -> { | ||
views.forEach(v -> { | ||
v.stop(); | ||
}); | ||
}; | ||
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return new ContextData(grid, views, null, stop); | ||
} | ||
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private ProgressView plain() { | ||
ProgressView view = new ProgressView(); | ||
view.setDescription("desc"); | ||
return view; | ||
} | ||
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private ProgressView spinnerOnly() { | ||
ProgressView view = new ProgressView(ProgressViewItem.ofSpinner()); | ||
return view; | ||
} | ||
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private ProgressView percentOnly() { | ||
ProgressView view = new ProgressView(ProgressViewItem.ofPercent()); | ||
return view; | ||
} | ||
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private ProgressView spreadAlign() { | ||
ProgressView view = new ProgressView(ProgressViewItem.ofText(0, HorizontalAlign.LEFT), | ||
ProgressViewItem.ofSpinner(0, HorizontalAlign.CENTER), | ||
ProgressViewItem.ofPercent(0, HorizontalAlign.RIGHT)); | ||
view.setDescription("desc"); | ||
return view; | ||
} | ||
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} |