121 lines
4.6 KiB
Java
121 lines
4.6 KiB
Java
package ctbrec.ui.tabs.logging;
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import java.time.Instant;
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import java.time.ZoneId;
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import java.time.format.DateTimeFormatter;
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import java.util.Collections;
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import java.util.LinkedList;
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import java.util.stream.Collectors;
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import com.google.common.eventbus.Subscribe;
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import ch.qos.logback.classic.spi.IThrowableProxy;
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import ch.qos.logback.classic.spi.LoggingEvent;
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import ch.qos.logback.classic.spi.StackTraceElementProxy;
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import ctbrec.event.EventBusHolder;
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import ctbrec.ui.controls.SearchBox;
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import javafx.application.Platform;
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import javafx.beans.property.SimpleStringProperty;
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import javafx.collections.FXCollections;
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import javafx.collections.ObservableList;
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import javafx.geometry.Insets;
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import javafx.scene.control.Tab;
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import javafx.scene.control.TableColumn;
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import javafx.scene.control.TableView;
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import javafx.scene.layout.BorderPane;
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public class LoggingTab extends Tab {
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private static final int HISTORY_LENGTH = 10_000;
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private SearchBox filter = new SearchBox();
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private TableView<LoggingEvent> table = new TableView<>();
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private ObservableList<LoggingEvent> history = FXCollections.observableList(Collections.synchronizedList(new LinkedList<>()));
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private ObservableList<LoggingEvent> filteredEvents = FXCollections.observableArrayList();
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private DateTimeFormatter timeFormatter = DateTimeFormatter.ISO_LOCAL_DATE_TIME;
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private volatile boolean tabClosed = false;
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private Object eventBustSubscriber = new Object() {
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@Subscribe
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public void publishLoggingEevent(LoggingEvent event) {
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if (!tabClosed) {
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Platform.runLater(() -> {
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history.add(event);
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if (history.size() > HISTORY_LENGTH - 1) {
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history.remove(0);
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}
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filter();
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});
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}
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}
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};
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private void filter() {
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filteredEvents.clear();
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filteredEvents.addAll(history.stream().filter(evt -> {
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String q = filter.getText().toLowerCase();
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return evt.getLevel().toString().toLowerCase().contains(q)
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|| createLogMessage(evt).toLowerCase().contains(q);
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}).collect(Collectors.toList()));
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}
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public LoggingTab() {
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setText("Logging");
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subscribeToEventBus();
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table = new TableView<>(filteredEvents);
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int idx = 0;
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TableColumn<LoggingEvent, String> level = createTableColumn("Level", 65, idx++);
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level.setCellValueFactory(cdf -> new SimpleStringProperty(cdf.getValue().getLevel().toString()));
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table.getColumns().add(level);
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TableColumn<LoggingEvent, String> time = createTableColumn("Timestamp", 200, idx++);
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time.setCellValueFactory(cdf -> {
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Instant instant = Instant.ofEpochMilli(cdf.getValue().getTimeStamp());
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return new SimpleStringProperty(instant.atZone(ZoneId.systemDefault()).format(timeFormatter));
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});
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table.getColumns().add(time);
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TableColumn<LoggingEvent, String> msg = createTableColumn("Message", 2000, idx++);
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msg.setCellValueFactory(cdf -> new SimpleStringProperty(createLogMessage(cdf.getValue())));
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table.getColumns().add(msg);
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BorderPane layout = new BorderPane();
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BorderPane.setMargin(table, new Insets(10));
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BorderPane.setMargin(filter, new Insets(10, 10, 0, 10));
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layout.setCenter(table);
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layout.setTop(filter);
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setContent(layout);
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setOnClosed(evt -> {
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EventBusHolder.BUS.unregister(eventBustSubscriber);
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tabClosed = true;
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});
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filter.setPromptText("Search");
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filter.textProperty().addListener( (observableValue, oldValue, newValue) -> filter());
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}
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private String createLogMessage(LoggingEvent evt) {
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StringBuilder sb = new StringBuilder(evt.getFormattedMessage());
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if(evt.getThrowableProxy() != null) {
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IThrowableProxy throwableProxy = evt.getThrowableProxy();
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sb.append('\n').append(throwableProxy.getClassName()).append(':').append(' ').append(throwableProxy.getMessage());
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for (StackTraceElementProxy step : throwableProxy.getStackTraceElementProxyArray()) {
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sb.append('\n').append('\t').append(step.getSTEAsString());
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}
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}
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return sb.toString();
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}
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private <T> TableColumn<LoggingEvent, T> createTableColumn(String text, int width, int idx) {
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TableColumn<LoggingEvent, T> tc = new TableColumn<>(text);
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tc.setPrefWidth(width);
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tc.setUserData(idx);
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return tc;
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}
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private void subscribeToEventBus() {
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EventBusHolder.BUS.register(eventBustSubscriber);
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}
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}
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