org.springframework.shell.table.CellMatchers Java Examples

/**
 * Customize the given TableBuilder with the following common features
 * (these choices can always be overridden by applying later customizations) :<ul>
 *     <li>double border around the whole table and first row</li>
 *     <li>vertical space (air) borders, single line separators between rows</li>
 *     <li>first row is assumed to be a header and is centered horizontally and vertically</li>
 *     <li>cells containing Map values are rendered as {@literal key = value} lines, trying to align on equal signs</li>
 * </ul>
 */
public static TableBuilder applyStyle(TableBuilder builder) {
	builder.addOutlineBorder(BorderStyle.fancy_double)
			.paintBorder(BorderStyle.air, BorderSpecification.INNER_VERTICAL)
			.fromTopLeft().toBottomRight()
			.paintBorder(BorderStyle.fancy_light, BorderSpecification.INNER_VERTICAL)
			.fromTopLeft().toBottomRight()
			.addHeaderBorder(BorderStyle.fancy_double)
			.on(CellMatchers.row(0))
			.addAligner(SimpleVerticalAligner.middle)
			.addAligner(SimpleHorizontalAligner.center)
	;
	return Tables.configureKeyValueRendering(builder, " = ");
}
 

@CliCommand(value = LIST_APPS, help = "List runtime apps")
public Table list(
		@CliOption(key = "summary", help = "whether to hide app instance details", unspecifiedDefaultValue = "false", specifiedDefaultValue = "true") boolean summary,
		@CliOption(key = { "appId",
				"appIds" }, help = "app id(s) to display, also supports '<group>.*' pattern") String[] appIds) {

	Set<String> filter = null;
	if (appIds != null) {
		filter = new HashSet<>(Arrays.asList(appIds));
	}

	TableModelBuilder<Object> modelBuilder = new TableModelBuilder<>();
	if (!summary) {
		modelBuilder.addRow().addValue("App Id / Instance Id").addValue("Unit Status")
				.addValue("No. of Instances / Attributes");
	}
	else {
		modelBuilder.addRow().addValue("App Id").addValue("Unit Status").addValue("No. of Instances");
	}

	// In detailed mode, keep track of app vs instance lines, to use
	// a different border style later.
	List<Integer> splits = new ArrayList<>();
	int line = 1;
	// Optimise for the single app case, which is likely less resource intensive on
	// the server
	// than client side filtering
	Iterable<AppStatusResource> statuses;
	if (filter != null && filter.size() == 1 && !filter.iterator().next().endsWith(".*")) {
		statuses = Collections.singleton(runtimeOperations().status(filter.iterator().next()));
	}
	else {
		statuses = runtimeOperations().status();
	}
	for (AppStatusResource appStatusResource : statuses) {
		if (filter != null && !shouldRetain(filter, appStatusResource)) {
			continue;
		}
		modelBuilder.addRow().addValue(appStatusResource.getDeploymentId()).addValue(appStatusResource.getState())
				.addValue(appStatusResource.getInstances().getContent().size());
		splits.add(line);
		line++;
		if (!summary) {
			for (AppInstanceStatusResource appInstanceStatusResource : appStatusResource.getInstances()) {
				modelBuilder.addRow().addValue(appInstanceStatusResource.getInstanceId())
						.addValue(appInstanceStatusResource.getState())
						.addValue(appInstanceStatusResource.getAttributes());
				line++;
			}
		}
	}

	TableModel model = modelBuilder.build();
	final TableBuilder builder = new TableBuilder(model);
	DataFlowTables.applyStyle(builder);
	builder.on(CellMatchers.column(0)).addAligner(SimpleVerticalAligner.middle).on(CellMatchers.column(1)).addAligner(SimpleVerticalAligner.middle).on(CellMatchers.column(1)).addAligner(SimpleHorizontalAligner.center)
			// This will match the "number of instances" cells only
			.on(CellMatchers.ofType(Integer.class)).addAligner(SimpleHorizontalAligner.center);

	Tables.configureKeyValueRendering(builder, " = ");
	for (int i = 2; i < model.getRowCount(); i++) {
		if (splits.contains(i)) {
			builder.paintBorder(BorderStyle.fancy_light, BorderSpecification.TOP).fromRowColumn(i, 0).toRowColumn(i + 1, model.getColumnCount());
		}
		else {
			builder.paintBorder(BorderStyle.fancy_light_quadruple_dash, BorderSpecification.TOP).fromRowColumn(i, 0).toRowColumn(i + 1,
					model.getColumnCount());
		}
	}

	return builder.build();
}
 

/**
 * Customize the given TableBuilder with the following common features (these choices can
 * always be overridden by applying later customizations) :
 * <ul>
 * <li>double border around the whole table and first row</li>
 * <li>vertical space (air) borders, single line separators between rows</li>
 * <li>first row is assumed to be a header and is centered horizontally and
 * vertically</li>
 * <li>cells containing Map values are rendered as {@literal key = value} lines, trying to
 * align on equal signs</li>
 * </ul>
 *
 * @param builder the table builder to use
 * @return the configured table builder
 */
public static TableBuilder applyStyle(TableBuilder builder) {
	builder.addOutlineBorder(BorderStyle.fancy_double)
			.paintBorder(BorderStyle.air, BorderSpecification.INNER_VERTICAL).fromTopLeft().toBottomRight()
			.paintBorder(BorderStyle.fancy_light, BorderSpecification.INNER_VERTICAL).fromTopLeft()
			.toBottomRight()
			.addHeaderBorder(BorderStyle.fancy_double).on(CellMatchers.row(0))
			.addAligner(SimpleVerticalAligner.middle).addAligner(SimpleHorizontalAligner.center);
	return Tables.configureKeyValueRendering(builder, " = ");
}
 

/**
 * Customize the given TableBuilder with the following common features (these choices
 * can always be overridden by applying later customizations) :
 * <ul>
 * <li>double border around the whole table and first row</li>
 * <li>vertical space (air) borders, single line separators between rows</li>
 * <li>first row is assumed to be a header and is centered horizontally and
 * vertically</li>
 * <li>cells containing Map values are rendered as {@literal key = value} lines,
 * trying to align on equal signs</li>
 * </ul>
 *
 * @param builder the table builder to use
 * @return the configured table builder
 */
public static TableBuilder applyStyle(TableBuilder builder) {
	builder.addOutlineBorder(BorderStyle.fancy_double)
			.paintBorder(BorderStyle.air, BorderSpecification.INNER_VERTICAL).fromTopLeft().toBottomRight()
			.paintBorder(BorderStyle.fancy_light, BorderSpecification.INNER_VERTICAL).fromTopLeft().toBottomRight()
			.addHeaderBorder(BorderStyle.fancy_double).on(CellMatchers.row(0))
			.addAligner(SimpleVerticalAligner.middle).addAligner(SimpleHorizontalAligner.center);
	return Tables.configureKeyValueRendering(builder, " = ");
}