下面列出了com.google.common.base.Strings#nullToEmpty ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public static MqttConnectMessage connect(ConnectOptions options) {
MqttFixedHeader fixedHeader = new MqttFixedHeader(MqttMessageType.CONNECT, false, MqttQoS.AT_MOST_ONCE, false,
10);
MqttConnectVariableHeader variableHeader = new MqttConnectVariableHeader(options.version().protocolName(),
options.version().protocolLevel(), options.userName() != null, options.password() != null,
options.will() == null ? false : options.will().isRetain(),
options.will() == null ? 0 : options.will().qos().value(), options.will() != null,
options.cleanSession(), options.keepAliveTimeSeconds());
MqttConnectPayload payload = new MqttConnectPayload(Strings.nullToEmpty(options.clientId()),
options.will() == null ? "" : options.will().topicName(),
options.will() == null ? "" : new String(options.will().message(), CharsetUtil.UTF_8),
Strings.nullToEmpty(options.userName()), Strings.nullToEmpty(options.password()));
return new MqttConnectMessage(fixedHeader, variableHeader, payload);
}
@Override
public AppServerConfig getAppServerConfig() {
if (appConfig == null) {
synchronized (ServerManager.class) {
String appCode = Strings.nullToEmpty(appInfoMap.get(APP_CODE_KEY));
String env = Strings.nullToEmpty(appInfoMap.get(ENV_NAME_KEY));
int port = Integer.valueOf(appInfoMap.get(PORT_KEY));
String ip = LocalHostUtil.getLocalHost();
String profile = env + ":" + Strings.nullToEmpty(appInfoMap.get(APP_PROFILE_KEY));
String room = Strings.nullToEmpty(appInfoMap.get(APP_ROOM_KEY));
String token = Strings.nullToEmpty(appInfoMap.get(TOKEN_KEY));
AppServerType type = AppServerType.valueOf(env);
appConfig = new AppServerConfig(appCode, env, token, ip, port, type, profile, Strings.nullToEmpty(null), Strings.nullToEmpty(room));
}
}
return appConfig;
}
@Override
public void setBootstrap(String bootstrap) {
if (isDirty()) {
setDirty(false);
resolveDirtyFields(true);
}
final String normalizedName = Strings.nullToEmpty(bootstrap);
if (!normalizedName.equals(Strings.nullToEmpty(this.bootstrap))) {
final PropertyChangeEvent event = new PropertyChangeEvent(
this, ISREInstallChangedListener.PROPERTY_BOOTSTRAP, this.bootstrap, normalizedName);
this.bootstrap = normalizedName;
if (this.notify) {
SARLRuntime.fireSREChanged(event);
}
}
}
/**
* Returns project settings that can be used when creating a new project.
*/
public static String getProjectSettings(String icon, String vCode, String vName,
String useslocation, String aName, String sizing, String showListsAsJson, String tutorialURL, String subsetJSON,
String actionBar, String theme, String primaryColor, String primaryColorDark, String accentColor) {
icon = Strings.nullToEmpty(icon);
vCode = Strings.nullToEmpty(vCode);
vName = Strings.nullToEmpty(vName);
useslocation = Strings.nullToEmpty(useslocation);
sizing = Strings.nullToEmpty(sizing);
aName = Strings.nullToEmpty(aName);
showListsAsJson = Strings.nullToEmpty(showListsAsJson);
tutorialURL = Strings.nullToEmpty(tutorialURL);
subsetJSON = Strings.nullToEmpty(subsetJSON);
actionBar = Strings.nullToEmpty(actionBar);
theme = Strings.nullToEmpty(theme);
primaryColor = Strings.nullToEmpty(primaryColor);
primaryColorDark = Strings.nullToEmpty(primaryColorDark);
accentColor = Strings.nullToEmpty(accentColor);
return "{\"" + SettingsConstants.PROJECT_YOUNG_ANDROID_SETTINGS + "\":{" +
"\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_ICON + "\":\"" + icon +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_VERSION_CODE + "\":\"" + vCode +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_VERSION_NAME + "\":\"" + vName +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_USES_LOCATION + "\":\"" + useslocation +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_APP_NAME + "\":\"" + aName +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_SIZING + "\":\"" + sizing +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_SHOW_LISTS_AS_JSON + "\":\"" + showListsAsJson +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_TUTORIAL_URL + "\":\"" + tutorialURL +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_BLOCK_SUBSET + "\":\"" + subsetJSON +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_ACTIONBAR + "\":\"" + actionBar +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_THEME + "\":\"" + theme +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_PRIMARY_COLOR + "\":\"" + primaryColor +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_PRIMARY_COLOR_DARK + "\":\"" + primaryColorDark +
"\",\"" + SettingsConstants.YOUNG_ANDROID_SETTINGS_ACCENT_COLOR + "\":\"" + accentColor +
"\"}}";
}
@Override
public void error(@Nullable Throwable throwable, @Nullable String errorFormat, Object... args) {
String message = Strings.nullToEmpty(errorFormat);
if (throwable == null) {
eventBus.post(ConsoleEvent.severe(message, args));
} else {
eventBus.post(ThrowableConsoleEvent.create(throwable, message, args));
}
}
private static <T extends Enum<T>> T optEnum(
final Map<?, ?> jsonObject, final Class<T> type, final String name, final T defaultValue) {
checkNotNull(jsonObject);
checkNotNull(type);
checkNotNull(name);
checkNotNull(defaultValue);
final String valueName = Strings.nullToEmpty((String) jsonObject.get(name));
return valueName.isEmpty() ? defaultValue : Enum.valueOf(type, valueName);
}
void addAttribute(String name, @Nullable String value) {
synchronized (attributesLock) {
if (attributes == null) {
// no race condition here since only transaction thread calls addAttribute()
attributes = HashMultimap.create(ATTRIBUTE_KEYS_INITIAL_CAPACITY, 1);
}
String val = Strings.nullToEmpty(value);
Collection<String> values = attributes.get(name);
if (values.size() < ATTRIBUTE_VALUES_PER_KEY_LIMIT) {
values.add(val);
}
}
}
private static String getDynamicInfo(String targetType, AnnotationNode annotation) {
String description = Strings.nullToEmpty(Annotations.<String>getValue(annotation));
Type upstream = Annotations.<Type>getValue(annotation, "mixin");
if (upstream != null) {
description = String.format("{%s} %s", upstream.getClassName(), description).trim();
}
return description.length() > 0 ? String.format(" %s is @Dynamic(%s)", targetType, description) : "";
}
@Override
public void service(HttpServletRequest request, HttpServletResponse response) throws IOException {
String echoedParam = Strings.nullToEmpty(request.getParameter(ECHOED_PARAM));
String template = Templates.getTemplate(request, getClass());
Escaper.EscapeMode escaper =
Escaper.EscapeMode.valueOf(Splitter.on('/').splitToList(request.getPathInfo()).get(2));
String escapedParam = escaper.escape(echoedParam);
Responses.sendXssed(response, Templates.replacePayload(template, escapedParam));
}
/** Get sub-path for particular Volume Mount in a particular workspace */
private String getVolumeMountSubpath(
VolumeMount volumeMount, String volumeName, String workspaceId, String machineName) {
String volumeMountSubPath = Strings.nullToEmpty(volumeMount.getSubPath());
if (!volumeMountSubPath.startsWith("/")) {
volumeMountSubPath = '/' + volumeMountSubPath;
}
return getVolumeSubpath(workspaceId, volumeName, machineName) + volumeMountSubPath;
}
private boolean fileExists(MySqlNode node, String binLogName) {
String dataDir = Strings.nullToEmpty(node.getConfig(MySqlNode.DATA_DIR));
String path = Os.mergePathsUnix(dataDir, binLogName);
String cmd = BashCommands.chain(
"cd $RUN_DIR",
BashCommands.requireTest(String.format("-f \"%s\"", path), "File " + path + " doesn't exist."));
String summary = "Check if file " + path + " exists";
SshMachineLocation machine = EffectorTasks.getSshMachine(node);
return Entities.submit(node, SshTasks.newSshExecTaskFactory(machine, cmd)
.allowingNonZeroExitCode()
.environmentVariable("RUN_DIR", node.getAttribute(SoftwareProcess.RUN_DIR))
.summary(summary)
.allowingNonZeroExitCode()).asTask().getUnchecked() == 0;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
String action = Strings.nullToEmpty(intent.getAction());
switch (action) {
case ACTION_CHECK_PERMISSION_AND_TRY_ADD:
//对沙雕Vivo做特殊处理
if (RomUtils.isVivoRom()) {
mHandler.sendEmptyMessageDelayed(HANDLER_DETECT_PERMISSION, 1000);
} else {
mHandler.sendEmptyMessage(HANDLER_DETECT_PERMISSION);
}
break;
case ACTION_FULL_SCREEN_TOUCH_ABLE:
showFullTouchWindow();
break;
case ACTION_FULL_SCREEN_TOUCH_DISABLE:
showFullTouchDisableWindow();
break;
case ACTION_NOT_FULL_SCREEN_TOUCH_ABLE:
showNotFullTouchWindow();
break;
case ACTION_NOT_FULL_SCREEN_TOUCH_DISABLE:
showNotFullTouchDisableWindow();
break;
case ACTION_INPUT:
showInputWindow();
break;
case ACTION_KILL:
stopSelf();
break;
}
return START_STICKY;
}
@Override
public Void call(ConfigBag parameters) {
String path = parameters.get(PATH);
String additionalOptions = Strings.nullToEmpty(parameters.get(ADDITIONAL_OPTIONS));
//TODO additionalOptions, path are not sanitized and are coming from the user.
//Should we try to sanitize (potentially limiting the range of possible inputs),
//or just assume the user has full machine access anyway?
((MySqlNodeImpl)entity()).getDriver().dumpDatabase(additionalOptions, path);
return null;
}
public void setText(String text) {
this.formattedText = null;
this.text = Strings.nullToEmpty(text);
}
public void setVersion(String version) {
this.version = Strings.nullToEmpty(version);
}
public WChatOutputEvent(String message)
{
setMessage(message);
originalMessage = Strings.nullToEmpty(message);
}
private boolean prepareApplicationIcon(File outputPngFile, List<File> mipmapDirectories, List<Integer> standardICSizes, List<Integer> foregroundICSizes) {
String userSpecifiedIcon = Strings.nullToEmpty(project.getIcon());
try {
BufferedImage icon;
if (!userSpecifiedIcon.isEmpty()) {
File iconFile = new File(project.getAssetsDirectory(), userSpecifiedIcon);
icon = ImageIO.read(iconFile);
if (icon == null) {
// This can happen if the iconFile isn't an image file.
// For example, icon is null if the file is a .wav file.
// TODO(lizlooney) - This happens if the user specifies a .ico file. We should
// fix that.
userErrors.print(String.format(ICON_ERROR, userSpecifiedIcon));
return false;
}
} else {
// Load the default image.
icon = ImageIO.read(Compiler.class.getResource(DEFAULT_ICON));
}
BufferedImage roundIcon = produceRoundIcon(icon);
BufferedImage roundRectIcon = produceRoundedCornerIcon(icon);
BufferedImage foregroundIcon = produceForegroundImageIcon(icon);
// For each mipmap directory, create all types of ic_launcher photos with respective mipmap sizes
for(int i=0; i < mipmapDirectories.size(); i++){
File mipmapDirectory = mipmapDirectories.get(i);
Integer standardSize = standardICSizes.get(i);
Integer foregroundSize = foregroundICSizes.get(i);
BufferedImage round = resizeImage(roundIcon,standardSize,standardSize);
BufferedImage roundRect = resizeImage(roundRectIcon,standardSize,standardSize);
BufferedImage foreground = resizeImage(foregroundIcon,foregroundSize,foregroundSize);
File roundIconPng = new File(mipmapDirectory,"ic_launcher_round.png");
File roundRectIconPng = new File(mipmapDirectory,"ic_launcher.png");
File foregroundPng = new File(mipmapDirectory,"ic_launcher_foreground.png");
ImageIO.write(round, "png", roundIconPng);
ImageIO.write(roundRect, "png", roundRectIconPng);
ImageIO.write(foreground, "png", foregroundPng);
}
ImageIO.write(icon, "png", outputPngFile);
} catch (Exception e) {
e.printStackTrace();
// If the user specified the icon, this is fatal.
if (!userSpecifiedIcon.isEmpty()) {
userErrors.print(String.format(ICON_ERROR, userSpecifiedIcon));
return false;
}
}
return true;
}
public void setAppYamlPath(String appYamlPath) {
this.appYamlPath = Strings.nullToEmpty(appYamlPath);
}
public S3ProxyHandler(final BlobStore blobStore,
AuthenticationType authenticationType, final String identity,
final String credential, @Nullable String virtualHost,
long v4MaxNonChunkedRequestSize, boolean ignoreUnknownHeaders,
CrossOriginResourceSharing corsRules, final String servicePath,
int maximumTimeSkew) {
if (authenticationType != AuthenticationType.NONE) {
anonymousIdentity = false;
blobStoreLocator = new BlobStoreLocator() {
@Nullable
@Override
public Map.Entry<String, BlobStore> locateBlobStore(
String identityArg, String container, String blob) {
if (!identity.equals(identityArg)) {
return null;
}
return Maps.immutableEntry(credential, blobStore);
}
};
} else {
anonymousIdentity = true;
final Map.Entry<String, BlobStore> anonymousBlobStore =
Maps.immutableEntry(null, blobStore);
blobStoreLocator = new BlobStoreLocator() {
@Override
public Map.Entry<String, BlobStore> locateBlobStore(
String identityArg, String container, String blob) {
return anonymousBlobStore;
}
};
}
this.authenticationType = authenticationType;
this.virtualHost = Optional.fromNullable(virtualHost);
this.v4MaxNonChunkedRequestSize = v4MaxNonChunkedRequestSize;
this.ignoreUnknownHeaders = ignoreUnknownHeaders;
this.corsRules = corsRules;
this.defaultBlobStore = blobStore;
xmlOutputFactory.setProperty("javax.xml.stream.isRepairingNamespaces",
Boolean.FALSE);
this.servicePath = Strings.nullToEmpty(servicePath);
this.maximumTimeSkew = maximumTimeSkew;
}
@Override
public String getSliceId(String id) {
return Strings.nullToEmpty(id);
}