Example usage for java.util Optional map

Introduction

In this page you can find the example usage for java.util Optional map.

Prototype

public <U> Optional<U> map(Function<? super T, ? extends U> mapper)

Source Link

Document

If a value is present, returns an Optional describing (as if by #ofNullable ) the result of applying the given mapping function to the value, otherwise returns an empty Optional .

Usage

From source file:org.wso2.carbon.uuf.core.App.java

private Theme getRenderingTheme(API api) {
    Optional<String> sessionThemeName = api.getSession().map(Session::getThemeName);
    if (!sessionThemeName.isPresent()) {
        return defaultTheme;
    }/*w  ww . j a v  a  2 s. c  om*/
    return sessionThemeName.map(themes::get)
            .orElseThrow(() -> new IllegalArgumentException(
                    "Theme '" + sessionThemeName.get() + "' which is set as for the current session of app '"
                            + name + "' does not exists. Available themes are " + themes.keySet() + "."));
}

From source file:pl.otros.logview.api.OtrosApplication.java

public Optional<LogDataTableModel> getSelectedPaneLogDataTableModel() {
    Optional<LogViewPanelI> selectedLogViewPanel = getSelectedLogViewPanel();
    return selectedLogViewPanel.map(LogViewPanelI::getDataTableModel);
}

From source file:pl.otros.logview.api.OtrosApplication.java

public Optional<JXTable> getSelectPaneJXTable() {
    Optional<LogViewPanelI> selectedLogViewPanel = getSelectedLogViewPanel();
    return selectedLogViewPanel.map(LogViewPanelI::getTable);
}

From source file:uk.nhs.fhir.render.NewMain.java

public NewMain(Path inputDirectory, Path outPath, Optional<String> newBaseURL,
        Optional<Set<String>> permittedMissingExtensionPrefixes, AbstractRendererEventHandler errorHandler,
        Optional<Set<String>> localQdomains) {
    this.rendererFileLocator = new DefaultRendererFileLocator(inputDirectory,
            makeRenderedArtefactTempDirectory(), outPath);
    this.newBaseURL = newBaseURL;
    this.permittedMissingExtensionPrefixes = permittedMissingExtensionPrefixes.orElse(Sets.newHashSet());
    this.eventHandler = errorHandler;
    this.localQdomains = localQdomains.map(qdomains -> (Set<String>) ImmutableSet.copyOf(qdomains));
}