Example usage for com.google.common.collect Multimap isEmpty

Introduction

In this page you can find the example usage for com.google.common.collect Multimap isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this multimap contains no key-value pairs.

Usage

From source file:com.wealdtech.utils.GuavaUtils.java

public static <T, U> Multimap<T, U> emptyToNull(final Multimap<T, U> input) {
    if (input == null || input.isEmpty()) {
        return null;
    }//from w  w  w .j ava 2 s .  c  o m
    return input;
}

---

From source file:org.jclouds.http.utils.Queries.java

public static String buildQueryLine(Multimap<String, ?> queryParams) {
    if (queryParams.isEmpty())
        return null;
    return buildQueryLine(queryParams, new AppendParam());
}

---

From source file:org.jclouds.http.utils.Queries.java

/**
 * percent encodes the query parameters, excep {@code /} and {@code ,} characters.
 * // w  w w.  j av  a2s .c o  m
 * @param queryParams
 * @return percent encoded line or null if no queryParams present
 */
public static String encodeQueryLine(Multimap<String, ?> queryParams) {
    if (queryParams.isEmpty())
        return null;
    return buildQueryLine(queryParams, new EncodeAndAppendParam());
}

---

From source file:com.isotrol.impe3.core.impl.RequestParamsFactory.java

/**
 * Returns the collection of request parameters from a multimap object.
 * @param map Multimap./*  w w  w.  j  a v  a2 s .c o  m*/
 * @return The request query parameters.
 */
public static RequestParams of(Multimap<String, String> map) {
    if (map == null || map.isEmpty()) {
        return EMPTY;
    }
    final ImmutableMultimap.Builder<CaseIgnoringString, String> builder = ImmutableMultimap.builder();
    for (String key : map.keySet()) {
        final CaseIgnoringString cis = CaseIgnoringString.valueOf(key);
        builder.putAll(cis, map.get(key));
    }
    return new Immutable(builder.build());
}

---

From source file:org.jclouds.http.utils.Queries.java

/**
 * percent encodes the query parameters according except characters specified in the {@code skips} argument.
 * // w  w  w . j  a v a 2s . com
 * @param queryParams
 * @return percent encoded line or null if no queryParams present
 */
public static String encodeQueryLine(Multimap<String, ?> queryParams, Iterable<Character> skips) {
    if (queryParams.isEmpty())
        return null;
    return buildQueryLine(queryParams, new EncodeAndAppendParam(skips));
}

---

From source file:com.google.errorprone.bugpatterns.ReplacementVariableFinder.java

private static ImmutableList<Fix> buildValidReplacements(
        Multimap<Integer, JCVariableDecl> potentialReplacements,
        Function<JCVariableDecl, Fix> replacementFunction) {
    if (potentialReplacements.isEmpty()) {
        return ImmutableList.of();
    }//from w  w  w .  j a va  2 s. co  m

    // Take all of the potential edit-distance replacements with the same minimum distance,
    // then suggest them as individual fixes.
    return potentialReplacements.get(Collections.min(potentialReplacements.keySet())).stream()
            .map(replacementFunction).collect(toImmutableList());
}

---

From source file:org.hudsonci.plugins.vault.util.MultimapUtil.java

public static void save(final Multimap<String, String> map, final Writer target, final String sep)
        throws IOException {
    assert map != null;
    assert target != null;

    if (map.isEmpty()) {
        return;/*from  w  ww.j a  v  a 2s. c o m*/
    }

    PrintWriter writer = new PrintWriter(new BufferedWriter(target));

    for (String key : map.keySet()) {
        for (String value : map.get(key)) {
            writer.append(key).append('=').append(value).append(sep);
        }
    }

    writer.flush();
}

---

From source file:co.cask.common.http.HttpRequests.java

/**
 * Executes an HTTP request to the url provided.
 *
 * @param request HTTP request to execute
 * @param requestConfig configuration for the HTTP request to execute
 * @return HTTP response//from w  w  w .  j  a  v  a 2s  .c o m
 */
public static HttpResponse execute(HttpRequest request, HttpRequestConfig requestConfig) throws IOException {
    String requestMethod = request.getMethod().name();
    URL url = request.getURL();

    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setRequestMethod(requestMethod);
    conn.setReadTimeout(requestConfig.getReadTimeout());
    conn.setConnectTimeout(requestConfig.getConnectTimeout());

    Multimap<String, String> headers = request.getHeaders();
    if (headers != null && !headers.isEmpty()) {
        for (Map.Entry<String, String> header : headers.entries()) {
            conn.setRequestProperty(header.getKey(), header.getValue());
        }
    }

    InputSupplier<? extends InputStream> bodySrc = request.getBody();
    if (bodySrc != null) {
        conn.setDoOutput(true);
        Long bodyLength = request.getBodyLength();
        if (bodyLength != null) {
            // use intValue to support 1.6
            if (bodyLength > requestConfig.getFixedLengthStreamingThreshold()) {
                conn.setFixedLengthStreamingMode(bodyLength.intValue());
            }
        } else {
            conn.setChunkedStreamingMode(0);
        }
    }

    if (conn instanceof HttpsURLConnection && !requestConfig.isVerifySSLCert()) {
        // Certificate checks are disabled for HTTPS connection.
        LOG.debug("Disabling SSL certificate check for {}", request.getURL());
        try {
            disableCertCheck((HttpsURLConnection) conn);
        } catch (Exception e) {
            LOG.error("Got exception while disabling SSL certificate check for {}", request.getURL());
        }
    }

    conn.connect();

    try {
        if (bodySrc != null) {
            OutputStream os = conn.getOutputStream();
            try {
                ByteStreams.copy(bodySrc, os);
            } finally {
                os.close();
            }
        }

        try {
            if (isSuccessful(conn.getResponseCode())) {
                return new HttpResponse(conn.getResponseCode(), conn.getResponseMessage(),
                        ByteStreams.toByteArray(conn.getInputStream()), conn.getHeaderFields());
            }
        } catch (FileNotFoundException e) {
            // Server returns 404. Hence handle as error flow below. Intentional having empty catch block.
        }

        // Non 2xx response
        InputStream es = conn.getErrorStream();
        byte[] content = (es == null) ? new byte[0] : ByteStreams.toByteArray(es);
        return new HttpResponse(conn.getResponseCode(), conn.getResponseMessage(), content,
                conn.getHeaderFields());
    } finally {
        conn.disconnect();
    }
}

---

From source file:com.torodb.torod.db.postgresql.meta.routines.DeleteDocuments.java

public static int execute(Configuration configuration, CollectionSchema colSchema,
        Multimap<DocStructure, Integer> didsByStructure, boolean justOne) {
    Multimap<DocStructure, Integer> didsByStructureToDelete;
    if (didsByStructure.isEmpty()) {
        return 0;
    }/*from  w ww .ja  va 2  s.c o m*/

    if (justOne) {
        didsByStructureToDelete = MultimapBuilder.hashKeys(1).arrayListValues(1).build();

        Map.Entry<DocStructure, Integer> aEntry = didsByStructure.entries().iterator().next();

        didsByStructureToDelete.put(aEntry.getKey(), aEntry.getValue());
    } else {
        didsByStructureToDelete = didsByStructure;
    }

    try {
        return execute(configuration, colSchema, didsByStructureToDelete);
    } catch (SQLException ex) {
        throw new RuntimeException(ex);
    }
}

---

From source file:grakn.core.graql.gremlin.RelationTypeInference.java

public static Set<Fragment> inferRelationTypes(TransactionOLTP tx, Set<Fragment> allFragments) {

    Set<Fragment> inferredFragments = new HashSet<>();

    Map<Variable, Type> labelVarTypeMap = getLabelVarTypeMap(tx, allFragments);
    if (labelVarTypeMap.isEmpty())
        return inferredFragments;

    Multimap<Variable, Type> instanceVarTypeMap = getInstanceVarTypeMap(allFragments, labelVarTypeMap);

    Multimap<Variable, Variable> relationRolePlayerMap = getRelationRolePlayerMap(allFragments,
            instanceVarTypeMap);/*from w ww  .  j  a v a  2  s .c om*/
    if (relationRolePlayerMap.isEmpty())
        return inferredFragments;

    // for each type, get all possible relation type it could be in
    Multimap<Type, RelationType> relationMap = HashMultimap.create();
    labelVarTypeMap.values().stream().distinct().forEach(type -> addAllPossibleRelations(relationMap, type));

    // inferred labels should be kept separately, even if they are already in allFragments set
    Map<Label, Statement> inferredLabels = new HashMap<>();
    relationRolePlayerMap.asMap().forEach((relationVar, rolePlayerVars) -> {

        Set<Type> possibleRelationTypes = rolePlayerVars.stream().filter(instanceVarTypeMap::containsKey)
                .map(rolePlayer -> getAllPossibleRelationTypes(instanceVarTypeMap.get(rolePlayer), relationMap))
                .reduce(Sets::intersection).orElse(Collections.emptySet());

        //TODO: if possibleRelationTypes here is empty, the query will not match any data
        if (possibleRelationTypes.size() == 1) {

            Type relationType = possibleRelationTypes.iterator().next();
            Label label = relationType.label();

            // add label fragment if this label has not been inferred
            if (!inferredLabels.containsKey(label)) {
                Statement labelVar = var();
                inferredLabels.put(label, labelVar);
                Fragment labelFragment = Fragments.label(new TypeProperty(label.getValue()), labelVar.var(),
                        ImmutableSet.of(label));
                inferredFragments.add(labelFragment);
            }

            // finally, add inferred isa fragments
            Statement labelVar = inferredLabels.get(label);
            IsaProperty isaProperty = new IsaProperty(labelVar);
            EquivalentFragmentSet isaEquivalentFragmentSet = EquivalentFragmentSets.isa(isaProperty,
                    relationVar, labelVar.var(), relationType.isImplicit());
            inferredFragments.addAll(isaEquivalentFragmentSet.fragments());
        }
    });

    return inferredFragments;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• »