Example usage for java.util ArrayList stream

Introduction

In this page you can find the example usage for java.util ArrayList stream.

Prototype

default Stream<E> stream() 

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:app.NotificationJSONizer.java

public static void jsonize(ArrayList<backend.Notification> notis, PrintWriter out) {
    JSONArray a = new JSONArray();
    notis.stream().forEach((noti) -> {
        JSONObject o = noti.jsonize();//from  w w w .  j a v  a2s. co  m
        o.put("type", noti.get_type().toString());
        a.add(o);
    });

    out.print(a.toString());
}

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From source file:Main.java

public static Stream<Node> getChildren(Node node) {
    NodeList children = node.getChildNodes();
    ArrayList<Node> childNodeList = new ArrayList<>();
    for (int c = 0; c < children.getLength(); c++) {
        childNodeList.add(children.item(c));
    }/*from  ww  w  .j ava  2s . c  o  m*/
    Stream<Node> childrenStream = childNodeList.stream();
    return childrenStream;
}

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From source file:org.pentaho.js.require.RebuildCacheCallable.java

private static void makePathsAbsolute(Map<String, Object> result, String baseUrl) {
    HashMap<String, String> paths = (HashMap<String, String>) result.get("paths");
    paths.forEach((moduleId, location) -> {
        if (checkNeedsBaseUrl(location)) {
            paths.put(moduleId, baseUrl + location);
        }/*from  w ww  .java 2  s  .  c om*/
    });

    ArrayList<Object> packages = (ArrayList<Object>) result.get("packages");
    final ArrayList<Object> convertedPackages = packages.stream().filter(Objects::nonNull)
            .map(packageDefinition -> {
                if (packageDefinition instanceof HashMap) {
                    final HashMap<String, String> complexPackageDefinition = (HashMap<String, String>) packageDefinition;

                    if (complexPackageDefinition.containsKey("location")) {
                        String location = complexPackageDefinition.get("location");
                        if (checkNeedsBaseUrl(location)) {
                            complexPackageDefinition.put("location", baseUrl + location);
                            return complexPackageDefinition;
                        }
                    }
                }

                return packageDefinition;
            }).collect(Collectors.toCollection(ArrayList<Object>::new));

    result.put("packages", convertedPackages);
}

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From source file:edgeserver.Publicador.java

private static void armazenaFila(ArrayList filaPublicacoes) throws IOException {
    new PrintWriter("fila.txt").close();
    filaPublicacoes.stream().forEach((publicacao) -> {
        BufferedWriter bw = null;
        try {/* w  w w  .  j  a  v a2  s  .com*/
            // APPEND MODE SET HERE
            bw = new BufferedWriter(new FileWriter("fila.txt", true));
            bw.write(publicacao.toString());
            bw.newLine();
            bw.flush();
        } catch (IOException ioe) {
            ioe.printStackTrace();
        } finally { // always close the file
            if (bw != null)
                try {
                    bw.close();
                } catch (IOException ioe2) {
                    // just ignore it
                }
        }
    });

}

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From source file:org.neo4j.nlp.examples.wikipedia.main.java

private static List<Map<String, Object>> getWikipediaArticles() throws IOException {
    final String txUri = "http://localhost:7474/db/data/" + "transaction/commit";
    WebResource resource = Client.create().resource(txUri);

    String query = "MATCH (n:Page) WITH n, rand() as sortOrder " + "ORDER BY sortOrder " + "LIMIT 1000 "
            + "RETURN n.title as title";

    String payload = "{\"statements\" : [ {\"statement\" : \"" + query + "\"} ]}";
    ClientResponse response = resource.accept(MediaType.APPLICATION_JSON).type(MediaType.APPLICATION_JSON)
            .entity(payload).post(ClientResponse.class);

    ObjectMapper objectMapper = new ObjectMapper();
    HashMap<String, Object> result;
    try {//  w w w  . j av  a 2  s .c  om
        result = objectMapper.readValue(response.getEntity(String.class), HashMap.class);
    } catch (Exception e) {
        throw e;
    }
    response.close();

    List<Map<String, Object>> results = new ArrayList<>();

    ArrayList resultSet = ((ArrayList) result.get("results"));
    List<LinkedHashMap<String, Object>> dataSet = (List<LinkedHashMap<String, Object>>) resultSet.stream()
            .map(a -> (LinkedHashMap<String, Object>) a).collect(Collectors.toList());

    List<LinkedHashMap> rows = (List<LinkedHashMap>) ((ArrayList) (dataSet.get(0).get("data"))).stream()
            .map(m -> (LinkedHashMap) m).collect(Collectors.toList());
    ArrayList cols = (ArrayList) (dataSet.get(0).get("columns"));

    for (LinkedHashMap row : rows) {
        ArrayList values = (ArrayList) row.get("row");
        Map<String, Object> resultRecord = new HashMap<>();
        for (int i = 0; i < values.size(); i++) {
            resultRecord.put(cols.get(i).toString(), values.get(i));
        }
        results.add(resultRecord);
    }
    return results;
}

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From source file:org.neo4j.nlp.examples.sentiment.main.java

private static boolean testOnText(String text, String label) {

    JsonObject jsonParam = new JsonObject();
    jsonParam.add("text", new JsonPrimitive(text));

    String jsonPayload = new Gson().toJson(jsonParam);

    String input = executePost("http://localhost:7474/service/graphify/classify", jsonPayload);

    System.out.println(input);/*from   ww w. j  a va  2  s.  com*/

    ObjectMapper objectMapper = new ObjectMapper();
    Map<String, Object> hashMap = new HashMap<>();
    try {
        hashMap = (Map<String, Object>) objectMapper.readValue(input, HashMap.class);
    } catch (IOException e) {
        e.printStackTrace();
    }

    // Validate guess
    ArrayList classes = (ArrayList) hashMap.get("classes");

    if (classes.size() > 0) {
        LinkedHashMap className = (LinkedHashMap) classes.stream().findFirst().get();

        return className.get("class").equals(label);
    } else {
        return false;
    }
}

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From source file:org.apache.sysml.runtime.codegen.SpoofOperator.java

public static long getTotalInputNnz(ArrayList<MatrixBlock> inputs) {
    return inputs.stream().mapToLong(in -> in.getNonZeros()).sum();
}

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From source file:org.apache.sysml.runtime.codegen.SpoofOperator.java

public static long getTotalInputSize(ArrayList<MatrixBlock> inputs) {
    return inputs.stream().mapToLong(in -> (long) in.getNumRows() * in.getNumColumns()).sum();
}

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From source file:org.sleuthkit.autopsy.imageanalyzer.ImageAnalyzerModule.java

/**
 *
 * @param file/*from  w ww.  jav a2s.  com*/
 *
 * @return true if the file had a TSK_FILE_TYPE_SIG attribute on a
 *         TSK_GEN_INFO that is in the supported list. False if there was an
 *         unsupported attribute, null if no attributes were found
 */
public static Boolean hasSupportedMimeType(AbstractFile file) {
    try {
        ArrayList<BlackboardAttribute> fileSignatureAttrs = file
                .getGenInfoAttributes(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_FILE_TYPE_SIG);
        if (fileSignatureAttrs.isEmpty() == false) {
            return fileSignatureAttrs.stream().anyMatch(attr -> supportedMimes.contains(attr.getValueString()));
        }
    } catch (TskCoreException ex) {
        LOGGER.log(Level.INFO, "failed to read TSK_FILE_TYPE_SIG attribute for " + file.getName(), ex);
    }
    return null;
}

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From source file:org.sleuthkit.autopsy.imageanalyzer.ImageAnalyzerModule.java

/** @param file
 *
 * @return true if the given file has a supported video mime type or
 *         extension, else false//w  w  w . ja  v  a  2  s .  c  om
 */
public static boolean isVideoFile(AbstractFile file) {
    try {
        ArrayList<BlackboardAttribute> fileSignatureAttrs = file
                .getGenInfoAttributes(BlackboardAttribute.ATTRIBUTE_TYPE.TSK_FILE_TYPE_SIG);
        if (fileSignatureAttrs.isEmpty() == false) {
            return fileSignatureAttrs.stream().anyMatch(attr -> videoMimes.contains(attr.getValueString()));
        }
    } catch (TskCoreException ex) {
        LOGGER.log(Level.INFO, "failed to read TSK_FILE_TYPE_SIG attribute for " + file.getName(), ex);
    }
    //if there were no file type attributes, or we failed to read it, fall back on extension
    return videoExtensions.contains(getFileExtension(file));
}

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