Example usage for java.util Arrays hashCode

List of usage examples for java.util Arrays hashCode

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Introduction

In this page you can find the example usage for java.util Arrays hashCode.

Prototype

public static int hashCode(Object a[])

Source Link

Document

Returns a hash code based on the contents of the specified array.

Usage

From source file:org.evosuite.testcase.ArrayStatement.java

/** {@inheritDoc} */
@Override/*  w  w  w . j  a v a  2s  . c o m*/
public int hashCode() {
    final int prime = 31;
    int result = retval.hashCode();
    result = prime * result + Arrays.hashCode(lengths);
    return result;
}

From source file:de.tudarmstadt.ukp.dkpro.argumentation.io.annotations.SpanAnnotationGraph.java

@Override
public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + Arrays.hashCode(relationTransitionTable);
    result = prime * result + (spanAnnotationVector == null ? 0 : spanAnnotationVector.hashCode());
    return result;
}

From source file:org.loklak.api.server.push.GeoJsonPushServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    RemoteAccess.Post post = RemoteAccess.evaluate(request);
    String remoteHash = Integer.toHexString(Math.abs(post.getClientHost().hashCode()));

    // manage DoS
    if (post.isDoS_blackout()) {
        response.sendError(503, "your request frequency is too high");
        return;//  w  ww.j a v  a 2  s. c o  m
    }

    String url = post.get("url", "");
    String map_type = post.get("map_type", "");
    String source_type_str = post.get("source_type", "");
    if ("".equals(source_type_str) || !SourceType.hasValue(source_type_str)) {
        DAO.log("invalid or missing source_type value : " + source_type_str);
        source_type_str = SourceType.IMPORT.name();
    }
    SourceType sourceType = SourceType.valueOf(source_type_str);

    if (url == null || url.length() == 0) {
        response.sendError(400, "your request does not contain an url to your data object");
        return;
    }
    String screen_name = post.get("screen_name", "");
    if (screen_name == null || screen_name.length() == 0) {
        response.sendError(400, "your request does not contain required screen_name parameter");
        return;
    }
    // parse json retrieved from url
    final List<Map<String, Object>> features;
    byte[] jsonText;
    try {
        jsonText = ClientConnection.download(url);
        Map<String, Object> map = DAO.jsonMapper.readValue(jsonText, DAO.jsonTypeRef);
        Object features_obj = map.get("features");
        features = features_obj instanceof List<?> ? (List<Map<String, Object>>) features_obj : null;
    } catch (Exception e) {
        response.sendError(400, "error reading json file from url");
        return;
    }
    if (features == null) {
        response.sendError(400, "geojson format error : member 'features' missing.");
        return;
    }

    // parse maptype
    Map<String, List<String>> mapRules = new HashMap<>();
    if (!"".equals(map_type)) {
        try {
            String[] mapRulesArray = map_type.split(",");
            for (String rule : mapRulesArray) {
                String[] splitted = rule.split(":", 2);
                if (splitted.length != 2) {
                    throw new Exception("Invalid format");
                }
                List<String> valuesList = mapRules.get(splitted[0]);
                if (valuesList == null) {
                    valuesList = new ArrayList<>();
                    mapRules.put(splitted[0], valuesList);
                }
                valuesList.add(splitted[1]);
            }
        } catch (Exception e) {
            response.sendError(400, "error parsing map_type : " + map_type + ". Please check its format");
            return;
        }
    }

    List<Map<String, Object>> rawMessages = new ArrayList<>();
    ObjectWriter ow = new ObjectMapper().writerWithDefaultPrettyPrinter();
    PushReport nodePushReport = new PushReport();
    for (Map<String, Object> feature : features) {
        Object properties_obj = feature.get("properties");
        @SuppressWarnings("unchecked")
        Map<String, Object> properties = properties_obj instanceof Map<?, ?>
                ? (Map<String, Object>) properties_obj
                : null;
        Object geometry_obj = feature.get("geometry");
        @SuppressWarnings("unchecked")
        Map<String, Object> geometry = geometry_obj instanceof Map<?, ?> ? (Map<String, Object>) geometry_obj
                : null;

        if (properties == null) {
            properties = new HashMap<>();
        }
        if (geometry == null) {
            geometry = new HashMap<>();
        }

        Map<String, Object> message = new HashMap<>();

        // add mapped properties
        Map<String, Object> mappedProperties = convertMapRulesProperties(mapRules, properties);
        message.putAll(mappedProperties);

        if (!"".equals(sourceType)) {
            message.put("source_type", sourceType.name());
        } else {
            message.put("source_type", SourceType.IMPORT);
        }
        message.put("provider_type", MessageEntry.ProviderType.GEOJSON.name());
        message.put("provider_hash", remoteHash);
        message.put("location_point", geometry.get("coordinates"));
        message.put("location_mark", geometry.get("coordinates"));
        message.put("location_source", LocationSource.USER.name());
        message.put("place_context", PlaceContext.FROM.name());

        if (message.get("text") == null) {
            message.put("text", "");
        }
        // append rich-text attachment
        String jsonToText = ow.writeValueAsString(properties);
        message.put("text", message.get("text") + MessageEntry.RICH_TEXT_SEPARATOR + jsonToText);

        if (properties.get("mtime") == null) {
            String existed = PushServletHelper.checkMessageExistence(message);
            // message known
            if (existed != null) {
                nodePushReport.incrementKnownCount(existed);
                continue;
            }
            // updated message -> save with new mtime value
            message.put("mtime", Long.toString(System.currentTimeMillis()));
        }

        try {
            message.put("id_str", PushServletHelper.computeMessageId(message, sourceType));
        } catch (Exception e) {
            DAO.log("Problem computing id : " + e.getMessage());
            nodePushReport.incrementErrorCount();
        }

        rawMessages.add(message);
    }

    PushReport report = PushServletHelper.saveMessagesAndImportProfile(rawMessages, Arrays.hashCode(jsonText),
            post, sourceType, screen_name);

    String res = PushServletHelper.buildJSONResponse(post.get("callback", ""), report);
    post.setResponse(response, "application/javascript");
    response.getOutputStream().println(res);
    DAO.log(request.getServletPath() + " -> records = " + report.getRecordCount() + ", new = "
            + report.getNewCount() + ", known = " + report.getKnownCount() + ", error = "
            + report.getErrorCount() + ", from host hash " + remoteHash);
}

From source file:org.uma.jmetal.util.point.impl.ArrayPointTest.java

@Test
public void shouldHashCodeReturnTheCorrectValue() {
    int dimension = 5;
    Point point = new ArrayPoint(dimension);

    point.setDimensionValue(0, 1.0);//from   www .  jav a2s .co  m
    point.setDimensionValue(1, -2.0);
    point.setDimensionValue(2, 45.5);
    point.setDimensionValue(3, -323.234);
    point.setDimensionValue(4, Double.MAX_VALUE);

    double[] array = { 1.0, -2.0, 45.5, -323.234, Double.MAX_VALUE };

    assertEquals(Arrays.hashCode(array), point.hashCode());
}

From source file:org.knime.al.util.noveltydetection.knfst.MultiClassKNFST.java

@Override
public int hashCode() {
    final int prime = 31;
    int result = super.hashCode();
    result = prime * result + Arrays.hashCode(m_labels);
    return result;
}

From source file:com.opengamma.analytics.financial.interestrate.payments.derivative.CouponIborRatchet.java

@Override
public int hashCode() {
    final int prime = 31;
    int result = super.hashCode();
    result = prime * result + Arrays.hashCode(_capCoefficients);
    result = prime * result + Arrays.hashCode(_floorCoefficients);
    result = prime * result + ((_index == null) ? 0 : _index.hashCode());
    result = prime * result + Arrays.hashCode(_mainCoefficients);
    return result;
}

From source file:com.eryansky.common.utils.TimeUtils.java

public int hashCode() {
    final int PRIME = 31;
    int result = 1;
    result = PRIME * result + Arrays.hashCode(fields);
    return result;
}

From source file:com.android.tv.data.Program.java

@Override
public int hashCode() {
    return Objects.hash(mChannelId, mStartTimeUtcMillis, mEndTimeUtcMillis, mTitle, mEpisodeTitle, mDescription,
            mVideoWidth, mVideoHeight, mPosterArtUri, mThumbnailUri, Arrays.hashCode(mContentRatings),
            Arrays.hashCode(mCanonicalGenreIds), mSeasonNumber, mSeasonTitle, mEpisodeNumber);
}

From source file:com.opengamma.analytics.math.minimization.UncoupledParameterTransforms.java

@Override
public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + Arrays.hashCode(_freeParameters);
    result = prime * result + _startValues.hashCode();
    result = prime * result + Arrays.hashCode(_transforms);
    return result;
}

From source file:org.nuclos.server.dblayer.structure.DbColumnType.java

@Override
public int hashCode() {
    return Arrays
            .hashCode(new Object[] { genericType != null ? genericType : typeName, length, precision, scale });
}