Example usage for com.google.common.collect Iterables getLast

List of usage examples for com.google.common.collect Iterables getLast

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Introduction

In this page you can find the example usage for com.google.common.collect Iterables getLast.

Prototype

public static <T> T getLast(Iterable<T> iterable)

Source Link

Document

Returns the last element of iterable .

Usage

From source file:com.google.security.zynamics.binnavi.Database.PostgreSQL.Savers.PostgreSQLEdgeSaver.java

/**
 * Writes the data from the edge objects to the edges table.
 * //from w w  w.  j a va2 s .  c  o m
 * @param connection Connection to a PostgreSQL database.
 * @param edges The edges to write.
 * 
 * @throws SQLException Thrown if storing the edges failed.
 */
private static void fillEdgesTable(final CConnection connection, final List<INaviEdge> edges)
        throws SQLException {

    final String query = "INSERT INTO " + CTableNames.EDGES_TABLE
            + "(source_node_id, target_node_id, x1, y1, x2, y2, type, "
            + "color, visible, selected, comment_id) VALUES " + "( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) ";

    final PreparedStatement preparedStatement = connection.getConnection().prepareStatement(query,
            PreparedStatement.RETURN_GENERATED_KEYS);

    try {
        for (final INaviEdge edge : edges) {
            preparedStatement.setInt(1, edge.getSource().getId());
            preparedStatement.setInt(2, edge.getTarget().getId());
            preparedStatement.setDouble(3, edge.getX1());
            preparedStatement.setDouble(4, edge.getY1());
            preparedStatement.setDouble(5, edge.getX2());
            preparedStatement.setDouble(6, edge.getY2());
            preparedStatement.setObject(7, edge.getType().toString().toLowerCase(), Types.OTHER);
            preparedStatement.setInt(8, edge.getColor().getRGB());
            preparedStatement.setBoolean(9, edge.isVisible());
            preparedStatement.setBoolean(10, edge.isSelected());
            if (edge.getLocalComment() == null) {
                preparedStatement.setNull(11, Types.INTEGER);
            } else {
                preparedStatement.setInt(11, Iterables.getLast(edge.getLocalComment()).getId());
            }

            preparedStatement.addBatch();
        }
        preparedStatement.executeBatch();

        final ResultSet resultSet = preparedStatement.getGeneratedKeys();

        for (final INaviEdge edge : edges) {
            if (resultSet.next()) {
                edge.setId(resultSet.getInt(1));
            } else {
                throw new IllegalStateException(
                        "Error: The number of keys generated does not match the number of edges");
            }
        }
    } catch (final SQLException exception) {
        CUtilityFunctions.logException(exception);
        CUtilityFunctions.logException(exception.getNextException());
    } finally {
        preparedStatement.close();
    }
}

From source file:com.google.devtools.build.lib.syntax.UserDefinedFunction.java

@Override
public Object call(Object[] arguments, FuncallExpression ast, Environment env)
        throws EvalException, InterruptedException {
    if (!env.mutability().isMutable()) {
        throw new EvalException(getLocation(), "Trying to call in frozen environment");
    }//w  w w. j  a  v a 2 s.com
    if (env.getStackTrace().contains(this)) {
        throw new EvalException(getLocation(),
                String.format("Recursion was detected when calling '%s' from '%s'", getName(),
                        Iterables.getLast(env.getStackTrace()).getName()));
    }

    Profiler.instance().startTask(ProfilerTask.SKYLARK_USER_FN, getName());
    try {
        env.enterScope(this, ast, definitionGlobals);
        ImmutableList<String> names = signature.getSignature().getNames();

        // Registering the functions's arguments as variables in the local Environment
        int i = 0;
        for (String name : names) {
            env.update(name, arguments[i++]);
        }

        try {
            for (Statement stmt : statements) {
                if (stmt instanceof ReturnStatement) {
                    // Performance optimization.
                    // Executing the statement would throw an exception, which is slow.
                    return ((ReturnStatement) stmt).getReturnExpression().eval(env);
                } else {
                    stmt.exec(env);
                }
            }
        } catch (ReturnStatement.ReturnException e) {
            return e.getValue();
        }
        return Runtime.NONE;
    } finally {
        Profiler.instance().completeTask(ProfilerTask.SKYLARK_USER_FN);
        env.exitScope();
    }
}

From source file:org.jclouds.vcloud.functions.OrgNameAndCatalogNameToEndpoint.java

@SuppressWarnings("unchecked")
public URI apply(Object from) {
    Iterable<Object> orgCatalog = (Iterable<Object>) checkNotNull(from, "args");
    Object org = Iterables.get(orgCatalog, 0);
    Object catalog = Iterables.get(orgCatalog, 1);
    if (org == null && catalog == null)
        return defaultUri;
    else if (org == null)
        org = defaultOrg;/*from w  ww  . j a va2s . c o  m*/

    try {
        Map<String, ReferenceType> catalogs = checkNotNull(orgMap.get().get(org)).getCatalogs();
        return catalog == null ? Iterables.getLast(catalogs.values()).getHref()
                : catalogs.get(catalog).getHref();
    } catch (NullPointerException e) {
        throw new NoSuchElementException(org + "/" + catalog + " not found in " + orgMap.get());
    }
}

From source file:org.jclouds.vcloud.functions.OrgNameAndVDCNameToEndpoint.java

@SuppressWarnings("unchecked")
public URI apply(Object from) {
    Iterable<Object> orgVdc = (Iterable<Object>) checkNotNull(from, "args");
    Object org = Iterables.get(orgVdc, 0);
    Object vdc = Iterables.get(orgVdc, 1);
    if (org == null && vdc == null)
        return defaultUri;
    else if (org == null)
        org = defaultOrg;/*  w  w  w  .  j  a v  a2  s  . c  om*/

    try {
        Map<String, ReferenceType> vdcs = checkNotNull(orgNameToVDCEndpoint.get().get(org)).getVDCs();
        return vdc == null ? Iterables.getLast(vdcs.values()).getHref() : vdcs.get(vdc).getHref();
    } catch (NullPointerException e) {
        throw new NoSuchElementException(org + "/" + vdc + " not found in " + orgNameToVDCEndpoint.get());
    }
}

From source file:com.google.devtools.build.lib.query2.engine.RegexFilterExpression.java

@Override
public <T> void eval(final QueryEnvironment<T> env, VariableContext<T> context, QueryExpression expression,
        final List<Argument> args, Callback<T> callback) throws QueryException, InterruptedException {
    final Pattern compiledPattern;
    try {//w w w  . ja v  a 2s .  co  m
        compiledPattern = Pattern.compile(getPattern(args));
    } catch (IllegalArgumentException e) {
        throw new QueryException(expression, "illegal pattern regexp in '" + this + "': " + e.getMessage());
    }

    // Note that Patttern#matcher is thread-safe and so this Predicate can safely be used
    // concurrently.
    final Predicate<T> matchFilter = new Predicate<T>() {
        @Override
        public boolean apply(T target) {
            for (String str : getFilterStrings(env, args, target)) {
                if ((str != null) && compiledPattern.matcher(str).find()) {
                    return true;
                }
            }
            return false;
        }
    };

    env.eval(Iterables.getLast(args).getExpression(), context, filteredCallback(callback, matchFilter));
}

From source file:org.killbill.billing.plugin.adyen.api.ExpiredPaymentPolicy.java

public PaymentTransactionInfoPlugin latestTransaction(
        final List<PaymentTransactionInfoPlugin> paymentTransactions) {
    return Iterables.getLast(paymentTransactions);
}

From source file:com.lyncode.jtwig.tree.tags.Filter.java

@Override
public void render(RenderStream renderStream, JtwigContext context) throws RenderException {
    RenderStream local = new RenderStream(new ByteArrayOutputStream());
    content.render(local, context);/*from   w  w  w.  j a v  a 2  s. co m*/
    Expression constant = new Constant<>(local.getOuputStream().toString());

    this.expressions.get(0).addArgument(0, constant);

    try {
        renderStream.write(Iterables.getLast(this.expressions).calculate(context).toString().getBytes());
    } catch (IOException | CalculateException e) {
        throw new RenderException(e);
    }
}

From source file:org.eclipse.tracecompass.lttng2.ust.core.analysis.debuginfo.UstDebugInfoSourceAspect.java

/**
 * Get the source callsite (the full {@link TmfCallsite} information) from a
 * binary callsite./*from w  ww.  j  a v  a  2s . c  om*/
 *
 * @param trace
 *            The trace, which may contain trace-specific configuration
 * @param bc
 *            The binary callsite
 * @return The source callsite, which sould include file name, function name
 *         and line number
 */
public static @Nullable SourceCallsite getSourceCallsite(LttngUstTrace trace, BinaryCallsite bc) {
    Iterable<SourceCallsite> callsites = FileOffsetMapper
            .getCallsiteFromOffset(new File(bc.getBinaryFilePath()), bc.getBuildId(), bc.getOffset());

    if (callsites == null || Iterables.isEmpty(callsites)) {
        return null;
    }
    /*
     * TMF only supports the notion of one callsite per event at the moment.
     * We will take the "deepest" one in the stack, which should refer to
     * the initial, non-inlined location.
     */
    SourceCallsite callsite = Iterables.getLast(callsites);

    /*
     * Apply the path prefix again, this time on the path given from
     * addr2line. If applicable.
     */
    String pathPrefix = trace.getSymbolProviderConfig().getActualRootDirPath();
    if (pathPrefix.isEmpty()) {
        return callsite;
    }

    String fullFileName = (pathPrefix + callsite.getFileName());
    return new SourceCallsite(fullFileName, callsite.getFunctionName(), callsite.getLineNumber());
}

From source file:com.android.tools.idea.editors.theme.attributes.editors.ColorRendererEditor.java

@Override
protected void updateComponent(@NotNull ThemeEditorContext context, @NotNull ResourceComponent component,
        @NotNull EditedStyleItem item) {
    ResourceResolver resourceResolver = context.getResourceResolver();
    assert resourceResolver != null;

    final List<Color> colors = ResourceHelper.resolveMultipleColors(resourceResolver, item.getSelectedValue(),
            context.getProject());/*from w  w w. ja v a2  s.  c  o  m*/
    SwatchComponent.SwatchIcon icon;
    if (colors.isEmpty()) {
        icon = SwatchComponent.WARNING_ICON;
    } else {
        icon = new SwatchComponent.ColorIcon(Iterables.getLast(colors));
        icon.setIsStack(colors.size() > 1);
    }
    component.setSwatchIcon(icon);
    component.setNameText(item.getQualifiedName());
    component.setValueText(item.getValue());

    if (!colors.isEmpty()) {
        Color color = Iterables.getLast(colors);
        String attributeName = item.getName();
        ImmutableMap<String, Color> contrastColorsWithDescription = ColorUtils
                .getContrastColorsWithDescription(context, attributeName);
        component.setWarning(ColorUtils.getContrastWarningMessage(contrastColorsWithDescription, color,
                ColorUtils.isBackgroundAttribute(attributeName)));
    } else {
        component.setWarning(null);
    }
}

From source file:org.jclouds.trmk.vcloud_0_8.suppliers.OnlyReferenceTypeFirstWithNameMatchingConfigurationKeyOrDefault.java

@Override
public ReferenceType apply(Iterable<ReferenceType> referenceTypes) {
    checkNotNull(referenceTypes, "referenceTypes");
    checkArgument(Iterables.size(referenceTypes) > 0,
            "No referenceTypes corresponding to configuration key %s present", configurationKey);
    if (Iterables.size(referenceTypes) == 1)
        return Iterables.getLast(referenceTypes);
    String namingPattern = valueOfConfigurationKeyOrNull.apply(configurationKey);
    if (namingPattern != null) {
        return findReferenceTypeWithNameMatchingPattern(referenceTypes, namingPattern);
    } else {//w  w w  .j a  v  a2s.  c  o  m
        return defaultReferenceType(referenceTypes);
    }
}