Example usage for com.google.common.base Strings nullToEmpty

Introduction

In this page you can find the example usage for com.google.common.base Strings nullToEmpty.

Prototype

public static String nullToEmpty(@Nullable String string)

Source Link

Document

Returns the given string if it is non-null; the empty string otherwise.

Usage

From source file:com.google.testing.security.firingrange.tests.reverseclickjacking.UniversalReverseClickjackingMultiPage.java

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
    String headerOptions, parameterLocation, template;

    try {//from w  w  w.  java 2 s  .  c o m
        parameterLocation = Splitter.on('/').splitToList(request.getPathInfo()).get(2);
        headerOptions = Splitter.on('/').splitToList(request.getPathInfo()).get(3);
    } catch (IndexOutOfBoundsException e) {
        // Either the parameter location or the X-Frame-Options is not set.
        Responses.sendError(response,
                "Please specify the location of the vulnerable parameter and the preference for the"
                        + " X-Frame-Option header.",
                400);
        return;
    }

    String vulnerableParameter = Strings.nullToEmpty(request.getParameter(VULNERABLE_PARAMETER));
    // Encode URL to prevent XSS
    vulnerableParameter = urlFormParameterEscaper().escape(vulnerableParameter);

    switch (parameterLocation) {
    case "ParameterInQuery":
        template = Templates.getTemplate("jsonly_in_query.tmpl", getClass());
        template = Templates.replacePayload(template, vulnerableParameter);
        break;
    case "ParameterInFragment":
        template = Templates.getTemplate("jsonly_in_fragment.tmpl", getClass());
        break;
    default:
        Responses.sendError(response, "Invalid location of the vulnerable parameter.", 400);
        return;
    }

    switch (headerOptions) {
    case "WithXFO":
        response.setHeader(HttpHeaders.X_FRAME_OPTIONS, "DENY");
        break;
    case "WithoutXFO":
        break;
    default:
        Responses.sendError(response, "Invalid preference for the X-Frame-Option header.", 400);
        return;
    }

    Responses.sendXssed(response, template);
}

From source file:fr.da2i.lup1.entity.formation.Member.java

public String getEmail() {
    return Strings.nullToEmpty(email);
}

From source file:de.m0ep.canvas.AbstractEndpoint.java

@Override
public void setParentEndpointPath(String parentEndpointPath) {
    this.parentEndpointPath = Strings.nullToEmpty(parentEndpointPath);
}

From source file:com.zimbra.cs.redolog.op.CreateFolder.java

public CreateFolder(int mailboxId, String name, int parentId, Folder.FolderOptions fopt) {
    this();//  w  w  w.j a v a 2 s. com
    setMailboxId(mailboxId);
    this.name = name == null ? "" : name;
    this.parentId = parentId;
    this.attrs = fopt.getAttributes();
    this.defaultView = fopt.getDefaultView();
    this.flags = fopt.getFlags();
    this.color = fopt.getColor().getValue();
    this.url = Strings.nullToEmpty(fopt.getUrl());
    this.date = fopt.getDate();
    this.custom = fopt.getCustomMetadata();
}

From source file:org.glowroot.agent.plugin.servlet.HttpSessions.java

private static void captureAllSessionAttributes(HttpSession session, Map<String, String> captureMap) {
    Enumeration<? extends /*@Nullable*/Object> e = session.getAttributeNames();
    if (e == null) {
        return;/*from w  ww. ja v a 2 s.  c o m*/
    }
    while (e.hasMoreElements()) {
        String attributeName = (String) e.nextElement();
        if (attributeName == null) {
            continue;
        }
        String valueString;
        if (attributeName.equals(ServletPluginProperties.HTTP_SESSION_ID_ATTR)) {
            valueString = Strings.nullToEmpty(session.getId());
        } else {
            Object value = session.getAttribute(attributeName);
            // value shouldn't be null, but its (remotely) possible that a concurrent
            // request for the same session just removed the attribute
            valueString = value == null ? "" : value.toString();
        }
        // taking no chances on value.toString() possibly returning null
        captureMap.put(attributeName, Strings.nullToEmpty(valueString));
    }
}

From source file:org.sonar.core.issue.tracking.LineHashSequence.java

/**
 * Hash of the given line, which starts with 1. Return empty string
 * is the line does not exist.//from  www  . java  2  s . c  om
 */
public String getHashForLine(int line) {
    if (line > 0 && line <= hashes.size()) {
        return Strings.nullToEmpty(hashes.get(line - 1));
    }
    return "";
}

From source file:com.arcbees.website.server.LocaleExtractor.java

private String getLocaleFromPath() {
    String path = Strings.nullToEmpty(request.getRequestURI());
    Matcher matcher = EXTRACT_LOCALE_PATTERN.matcher(path);

    String locale = null;/*from  w w w .j  ava2  s. c  o m*/
    if (matcher.find()) {
        locale = matcher.group(1).toLowerCase();
    }

    return locale;
}

From source file:com.zimbra.doc.soap.XmlAttributeDescription.java

public String getFieldTag() {
    return Strings.nullToEmpty(fieldTag);
}

From source file:com.b2international.commons.exceptions.Exceptions.java

/**
 * Tries to extract the expected cause from the commit exception and returns with it. May return with {@code null}
 * if the expected exception cannot be extracted from the wrapper commit exception.
 * @param t the throwable possible wrapping the original cause of a failure commit.
 * @param classLoader class loader for resolving the excepted cause. May be {@code null}. 
 * @param expectedCauseType the expected case type.
 * @return the wrapped cause or {@code null} if cannot be extracted.
 *///from   w  w w  . ja  va  2s  . c  o  m
public static <T extends Throwable> T extractCause(final Throwable t, final ClassLoader classLoader,
        final Class<? extends T> expectedCauseType) {

    Preconditions.checkNotNull(t, "Exception argument cannot be null.");
    Preconditions.checkNotNull(expectedCauseType, "Expected cause type class argument cannot be null.");

    @SuppressWarnings("rawtypes")
    final Pair<Class, String> cause = extractCause0(t, classLoader, expectedCauseType);
    if (null != cause && expectedCauseType.isAssignableFrom(cause.getA())) {
        try {
            final T $ = expectedCauseType.newInstance();
            ReflectionUtils.setField(Throwable.class, $, THROWABLE_DETAILED_MESSAGE,
                    Strings.nullToEmpty(cause.getB()));
            return $;
        } catch (final InstantiationException e1) {
            LOGGER.error("Cannot instantiate " + cause.getA().getSimpleName() + " instance as the cause of " + t
                    + ".");
        } catch (final IllegalAccessException e1) {
            LOGGER.error("Cannot instantiate " + cause.getA().getSimpleName() + " instance as the cause of " + t
                    + ".");
        }
    }

    return null;
}

From source file:org.apache.hadoop.hbase.ipc.RpcExecutor.java

public RpcExecutor(final String name, final int handlerCount) {
    this.handlers = new ArrayList<Thread>(handlerCount);
    this.handlerCount = handlerCount;
    this.name = Strings.nullToEmpty(name);
}