Example usage for java.util HashMap get

Introduction

In this page you can find the example usage for java.util HashMap get.

Prototype

public V get(Object key) 

Source Link

Document

Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.

Usage

From source file:eu.lod2.ConfigurationTab.java

private static List<String> parse_graph_api_result(String result) throws Exception {

    ObjectMapper mapper = new ObjectMapper(); // can reuse, share globally
    TypeReference<HashMap<String, Object>> typeRef = new TypeReference<HashMap<String, Object>>() {
    };/*from  www  .  ja  v a2s .  c  o  m*/
    HashMap<String, Object> userData = mapper.readValue(result, typeRef);

    List<String> graphs = null;
    if (userData.containsKey("graphs")) {
        Object ographs = userData.get("graphs");
        try {
            HashMap<String, Object> oographs = (HashMap<String, Object>) ographs;
            if (oographs.containsKey("resultList")) {
                Object graphsList = oographs.get("resultList");
                graphs = (List<String>) graphsList;
            }
            ;
        } catch (Exception e) {
            System.err.println(e.getMessage());
        }
        ;
    }
    ;

    return graphs;

}

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From source file:edu.vt.vbi.patric.dao.HibernateHelper.java

public static Session currentSession(String key) throws HibernateException {

    HashMap<String, Session> sessionMaps = sessionMapsThreadLocal.get();

    if (sessionMaps == null) {
        sessionMaps = new HashMap<String, Session>();
        sessionMapsThreadLocal.set(sessionMaps);
    }/*from   w ww .  j  a  va  2  s  .  c  o m*/

    // Open a new Session, if this Thread has none yet
    Session s = sessionMaps.get(key);
    if (s == null) {
        s = sessionFactoryMap.get(key).openSession();
        sessionMaps.put(key, s);
    }

    return s;
}

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From source file:Main.java

private static Document documentFromSoapBody(SOAPBodyElement element,
        HashMap<String, String> namespaceDeclarations) throws ParserConfigurationException {
    Document document = dbf.newDocumentBuilder().newDocument();
    Node node = document.importNode(element, true);
    document.appendChild(node);/*from  ww w . j av a  2s .  c o m*/

    for (String prefix : namespaceDeclarations.keySet()) {
        String uri = namespaceDeclarations.get(prefix);
        if (node.lookupNamespaceURI(prefix) == null) {
            document.getDocumentElement().setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns:" + prefix,
                    uri);
        }
    }
    return document;
}

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From source file:Main.java

public static <T, K> ArrayList<T> buildTree(Collection<T> list, Function<T, K> keyMapper,
        Function<T, K> parentKeyMapper, Function<T, Collection<T>> childMapper) {
    HashMap<K, T> map = toHashMap(list, keyMapper);

    ArrayList<T> root = new ArrayList<T>();
    for (T t : list) {
        K key = keyMapper.apply(t);//www  .ja  v a  2s  .c  o  m
        K parentKey = parentKeyMapper.apply(t);
        if (parentKey == null || key.equals(parentKey))
            root.add(t);
        else
            childMapper.apply(map.get(parentKey)).add(t);
    }

    return root;
}

---

From source file:afest.math.MyMath.java

/**
 * Return the object that has majority (# of occurrences) in the collection. T must implement equals.  
 * @param <T> Type of object to get the majority.
 * @param collection collection to extract the object that is majoritary from.
 * @return the object that occurs the most often in the collection.
 *//* w w w. j a  v  a2 s . co  m*/
public static <T> T majority(Collection<T> collection) {
    HashMap<T, Integer> counts = new HashMap<T, Integer>();
    for (T aT : collection) {
        Integer count = counts.get(aT);
        if (count == null) {
            counts.put(aT, 0);
            count = counts.get(aT);
        }
        counts.put(aT, count + 1);
    }
    T majority = null;
    int maxCount = -1;
    for (T aT : counts.keySet()) {
        if (majority == null) {
            majority = aT;
            maxCount = counts.get(aT);
        }

        int count = counts.get(aT);
        if (maxCount < count) {
            majority = aT;
            maxCount = count;
        }
    }
    return majority;
}

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From source file:StringUtilities.java

/**
 * Processes directive/value pairs from the digest-challenge and
 * fill out the provided map./*w w  w . java  2 s.  com*/
 * 
 * @param key A non-null String challenge token name.
 * @param value A non-null String token value.
 * @throws SaslException if either the key or the value is null or
 * if the key already has a value. 
 */
private static void extractDirective(HashMap<String, String> map, String key, String value)
        throws SaslException {
    if (map.get(key) != null) {
        throw new SaslException("Peer sent more than one " + key + " directive");
    }

    map.put(key, value);
}

---

From source file:net.doubledoordev.backend.webserver_old.methods.Post.java

/**
 * Handle post requests from the newServer page
 *///w  w w .ja  v  a 2 s. co  m
private static void handleNewServer(HashMap<String, Object> dataObject, NanoHTTPD.HTTPSession session,
        Map<String, String> map) throws Exception {
    User user = (User) dataObject.get("user");
    if (user == null)
        throw new Exception("Not logged in.");
    if (user.getMaxServers() != -1 && user.getServerCount() >= user.getMaxServers())
        throw new Exception("Max server count reached.");
    ServerData data = new ServerData();

    if (user.getGroup() == Group.ADMIN && map.containsKey("owner"))
        data.owner = map.get("owner");
    else
        data.owner = user.getUsername();

    data.ID = data.owner + "_" + map.get("ID");
    if (Settings.getServerByName(data.ID) != null)
        throw new Exception("Duplicate server ID");

    data.ramMin = Integer.parseInt(map.get("RAMmin"));
    data.ramMax = Integer.parseInt(map.get("RAMmax"));
    if (data.ramMax < data.ramMin) {
        int temp = data.ramMax;
        data.ramMax = data.ramMin;
        data.ramMin = temp;
    }
    if (user.getMaxRam() != -1 && user.getMaxRamLeft() < data.ramMax)
        throw new Exception("You are over your max RAM.");
    if (data.ramMax < 2 || data.ramMin < 2)
        throw new Exception("RAM settings invalid.");

    data.permGen = Integer.parseInt(map.get("PermGen"));
    if (data.permGen < 2)
        throw new Exception("PermGen settings invalid.");

    if (map.get("extraJavaParameters").trim().length() != 0)
        data.extraJavaParameters = Arrays.asList(map.get("extraJavaParameters").trim().split("\n"));
    if (map.get("extraMCParameters").trim().length() != 0)
        data.extraMCParameters = Arrays.asList(map.get("extraMCParameters").trim().split("\n"));
    if (map.get("admins").trim().length() != 0)
        data.admins = Arrays.asList(map.get("admins").trim().split("\n"));
    if (map.get("coOwners").trim().length() != 0)
        data.coOwners = Arrays.asList(map.get("coOwners").trim().split("\n"));

    data.jarName = map.get("jarname");
    data.rconPswd = map.get("rconpass");
    data.serverPort = Settings.SETTINGS.fixedPorts ? Settings.SETTINGS.portRange.getNextAvailablePort()
            : Integer.parseInt(map.get("serverport"));
    data.rconPort = Settings.SETTINGS.fixedPorts
            ? Settings.SETTINGS.portRange.getNextAvailablePort(data.serverPort)
            : Integer.parseInt(map.get("rconport"));
    data.ip = map.get("ip");
    data.autoStart = map.containsKey("autostart") && map.get("autostart").equals("on");

    Server server = new Server(data, true);
    Settings.SETTINGS.servers.put(data.ID, server);
    Settings.save();
    dataObject.put("step2", true);
    dataObject.put("server", server);

    FileUtils.writeStringToFile(new File(server.getFolder(), "eula.txt"),
            "#The server owner indicated to agree with the EULA when submitting the from that produced this server instance.\n"
                    + "#That means that there is no need for extra halting of the server startup sequence with this stupid file.\n"
                    + "#" + new Date().toString() + "\n" + "eula=true\n");
}

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From source file:StringUtilities.java

/**
 * Copy the directive to the {@link StringBuilder} if not null.
 * (A directive is a parameter of the digest authentication process.)
 * //from  w  ww  .  j a va 2s .  co  m
 * @param directives the directives map
 * @param sb the output buffer
 * @param directive the directive name to look for
 */
public static void copyDirective(HashMap<String, String> directives, StringBuilder sb, String directive) {
    String directiveValue = directives.get(directive);
    if (directiveValue != null) {
        sb.append(directive).append(" = \"").append(directiveValue).append("\", ");
    }
}

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From source file:edu.indiana.lib.twinpeaks.util.StatusUtils.java

/**
 * Get the status entry for a specified target database
 * @param sessionContext Active SessionContext
 * @param target Database name/*www  . j  ava  2  s . c  om*/
 * @return Status Map for this target (null if none)
 */
public static HashMap getStatusMapForTarget(SessionContext sessionContext, String target) {
    HashMap statusMap = (HashMap) sessionContext.get("searchStatus");

    return (statusMap == null) ? null : (HashMap) statusMap.get(target);
}

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From source file:StringUtilities.java

/**
 * Copy the directive from the source map to the destination map, if it's
 * value isn't null./*ww w.  j  a v  a2 s.c o  m*/
 * (A directive is a parameter of the digest authentication process.)
 * 
 * @param src the source map
 * @param dst the destination map
 * @param directive the directive name
 * @return the value of the copied directive
 */
public static String copyDirective(HashMap<String, String> src, HashMap<String, String> dst, String directive) {
    String directiveValue = src.get(directive);
    if (directiveValue != null) {
        dst.put(directive, directiveValue);
    }

    return directiveValue;
}

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