Example usage for java.util Map clear

List of usage examples for java.util Map clear

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Introduction

In this page you can find the example usage for java.util Map clear.

Prototype

void clear();

Source Link

Document

Removes all of the mappings from this map (optional operation).

Usage

From source file:collection.PhysicalWebCollection.java

/**
 * Given a list of PwPairs, return a filtered list such that only one PwPair from each group
 * is included.// w  w  w  . j av a  2  s. c  o  m
 * @param allPairs Input PwPairs list.
 * @param outGroupMap Optional output map from discovered group IDs to UrlGroups, may be null.
 * @return Filtered PwPairs list.
 */
private static List<PwPair> removeDuplicateGroupIds(List<PwPair> allPairs, Map<String, UrlGroup> outGroupMap,
        Comparator<PwPair> comparator) {
    List<PwPair> filteredPairs = new ArrayList<>();
    Map<String, UrlGroup> groupMap = outGroupMap;
    if (groupMap == null) {
        groupMap = new HashMap<>();
    } else {
        groupMap.clear();
    }

    for (PwPair pwPair : allPairs) {
        PwsResult pwsResult = pwPair.getPwsResult();
        String groupId = pwsResult.getGroupId();
        if (groupId == null || groupId.equals("")) {
            // Pairs without a group are always included
            filteredPairs.add(pwPair);
        } else {
            // Create the group if it doesn't exist
            UrlGroup urlGroup = groupMap.get(groupId);
            if (urlGroup == null) {
                urlGroup = new UrlGroup(groupId);
                groupMap.put(groupId, urlGroup);
            }
            urlGroup.addPair(pwPair);
        }
    }

    for (UrlGroup urlGroup : groupMap.values()) {
        filteredPairs.add(urlGroup.getTopPair(comparator));
    }

    return filteredPairs;
}

From source file:de.xwic.appkit.core.util.CollectionUtil.java

/**
 * @param where map to clear and add to/*from  w  w  w . j a v a  2  s  .c om*/
 * @param fromWhere what to add
 * @throws NullPointerException if <code>where</code> is empty
 */
public static <K, V> void clearAndPutAll(final Map<? super K, ? super V> where,
        final Map<? extends K, ? extends V> fromWhere) throws NullPointerException {
    if (where == fromWhere) {
        return;
    }
    where.clear();
    if (!isEmpty(fromWhere)) {
        where.putAll(fromWhere);
    }
}

From source file:org.activiti.crystalball.simulator.GenerateProcessEngineState.java

private static void generatePlaybackOriginal() throws InterruptedException, IOException {
    String PROCESS_KEY = "playback";
    RepositoryService repositoryService;
    RuntimeService runtimeService;//from   ww  w.  j  a v a2  s  .c  o  m
    TaskService taskService;
    IdentityService identityService;
    HistoryService historyService;
    ProcessEngine processEngine;
    String liveDB = TEMP_DIR + "/Playback";

    // delete previous DB instalation and set property to point to the current file
    File prevDB = new File(liveDB + ".h2.db");

    String previousLiveDB = System.getProperty("liveDB");

    System.setProperty("liveDB", liveDB);
    if (prevDB.exists())
        prevDB.delete();
    prevDB = null;

    ClassPathXmlApplicationContext appContext = new ClassPathXmlApplicationContext(
            "org/activiti/crystalball/simulator/LiveEngine-context.xml");
    Calendar calendar = Calendar.getInstance();
    calendar.set(2013, 01, 25, 14, 30, 00);
    ClockUtil.setCurrentTime(calendar.getTime());

    repositoryService = appContext.getBean(RepositoryService.class);
    runtimeService = appContext.getBean(RuntimeService.class);
    taskService = appContext.getBean(TaskService.class);
    identityService = appContext.getBean(IdentityService.class);
    historyService = appContext.getBean(HistoryService.class);

    processEngine = appContext.getBean(ProcessEngine.class);

    // deploy processes
    repositoryService.createDeployment()
            .addClasspathResource("org/activiti/crystalball/simulator/Playback.bpmn").deploy();

    // init identity service
    identityService.saveGroup(identityService.newGroup("Group1"));
    identityService.saveUser(identityService.newUser("user1"));

    identityService.createMembership("user1", "Group1");

    // start processes 
    Map<String, Object> variables2 = new HashMap<String, Object>();
    variables2.put("x", 3);
    Map<String, Object> variables1 = new HashMap<String, Object>();
    variables1.put("x", 1);
    Map<String, Object> variables0 = new HashMap<String, Object>();
    variables0.put("x", 0);

    ProcessInstance processInstance1 = runtimeService.startProcessInstanceByKey(PROCESS_KEY, "BUSINESS-KEY-1",
            variables0);
    calendar.add(Calendar.SECOND, 1);
    ClockUtil.setCurrentTime(calendar.getTime());
    ProcessInstance processInstance2 = runtimeService.startProcessInstanceByKey(PROCESS_KEY, "BUSINESS-KEY-2",
            variables1);
    calendar.add(Calendar.SECOND, 1);
    ClockUtil.setCurrentTime(calendar.getTime());
    runtimeService.startProcessInstanceByKey(PROCESS_KEY, "BUSINESS-KEY-3", variables0);

    // put first 5 tasks to the next node
    List<Task> taskList = taskService.createTaskQuery().taskCandidateUser("user1").list();
    for (Task t : taskList) {
        taskService.claim(t.getId(), "user1");
    }

    // complete these tasks
    for (Task t : taskList) {
        // wait some time  to have some data in history 
        calendar.add(Calendar.SECOND, 1);
        ClockUtil.setCurrentTime(calendar.getTime());
        // complete task
        taskService.complete(t.getId(), variables2);
    }

    // audit trail images generator
    AuditTrailProcessDiagramGenerator generator = new AuditTrailProcessDiagramGenerator();
    generator.setHistoryService(historyService);
    generator.setRepositoryService((RepositoryServiceImpl) repositoryService);
    generator.setWriteUpdates(true);

    Map<String, Object> params = new HashMap<String, Object>();
    params.put(AuditTrailProcessDiagramGenerator.PROCESS_INSTANCE_ID, processInstance1.getId());

    ImageIO.write(ImageIO.read(generator.generateLayer("png", params)), "png",
            new File(TEMP_DIR + "/playback-auditTrail1.png"));

    params.clear();
    params.put(AuditTrailProcessDiagramGenerator.PROCESS_INSTANCE_ID, processInstance2.getId());

    ImageIO.write(ImageIO.read(generator.generateLayer("png", params)), "png",
            new File(TEMP_DIR + "/playback-auditTrail2.png"));

    processEngine.close();

    appContext.close();

    if (previousLiveDB != null)
        System.setProperty("liveDB", previousLiveDB);
    else
        System.setProperty("liveDB", "");

}

From source file:com.datatorrent.stram.support.StramTestSupport.java

public static void setEnv(Map<String, String> newenv) throws Exception {
    try {/*from  w w w .j  ava2 s .c  o  m*/
        Class<?> processEnvironmentClass = Class.forName("java.lang.ProcessEnvironment");
        Field theEnvironmentField = processEnvironmentClass.getDeclaredField("theEnvironment");
        theEnvironmentField.setAccessible(true);
        Map<String, String> env = (Map<String, String>) theEnvironmentField.get(null);
        env.putAll(newenv);
        Field theCaseInsensitiveEnvironmentField = processEnvironmentClass
                .getDeclaredField("theCaseInsensitiveEnvironment");
        theCaseInsensitiveEnvironmentField.setAccessible(true);
        Map<String, String> cienv = (Map<String, String>) theCaseInsensitiveEnvironmentField.get(null);
        cienv.putAll(newenv);
    } catch (NoSuchFieldException e) {
        Class[] classes = Collections.class.getDeclaredClasses();
        Map<String, String> env = System.getenv();
        for (Class cl : classes) {
            if ("java.util.Collections$UnmodifiableMap".equals(cl.getName())) {
                Field field = cl.getDeclaredField("m");
                field.setAccessible(true);
                Object obj = field.get(env);
                Map<String, String> map = (Map<String, String>) obj;
                map.clear();
                map.putAll(newenv);
            }
        }
    }
}

From source file:org.vader.common.spring.TransactionScope.java

private static void registerSynchronization() {
    LOG.debug("Registers transaction synchronization");
    TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronizationAdapter() {
        @Override/* w w  w  .  j  a va2  s.c  o m*/
        public void suspend() {
            LOG.debug("Push new transaction scope");
            SCOPES.get().push(new HashMap<String, ScopeEntry>());
        }

        @Override
        public void resume() {
            LOG.debug("Pop old transaction scope");
            SCOPES.get().pop();
        }

        @Override
        public void afterCompletion(int status) {
            final Map<String, ScopeEntry> scope = getCurrentScope();
            LOG.debug("Destroying {} beans", scope.size());
            for (Map.Entry<String, ScopeEntry> entry : scope.entrySet()) {
                for (Runnable runnable : entry.getValue().getCallbacks()) {
                    LOG.debug("Executes destruction callback for bean={}", entry.getKey());
                    runnable.run();
                }
            }
            scope.clear();
            LOG.debug("Destruction completed");
        }
    });
}

From source file:com.linkedin.pinot.controller.helix.core.realtime.PinotLLCRealtimeSegmentManager.java

protected static IdealState updateForNewRealtimeSegment(IdealState idealState, final List<String> newInstances,
        final String oldSegmentNameStr, final String newSegmentNameStr) {
    if (oldSegmentNameStr != null) {
        // Update the old ones to be ONLINE
        Set<String> oldInstances = idealState.getInstanceSet(oldSegmentNameStr);
        for (String instance : oldInstances) {
            idealState.setPartitionState(oldSegmentNameStr, instance,
                    PinotHelixSegmentOnlineOfflineStateModelGenerator.ONLINE_STATE);
        }/* w  w  w  . j a va  2s. c om*/
    }

    // We may have (for whatever reason) a different instance list in the idealstate for the new segment.
    // If so, clear it, and then set the instance state for the set of instances that we know should be there.
    Map<String, String> stateMap = idealState.getInstanceStateMap(newSegmentNameStr);
    if (stateMap != null) {
        stateMap.clear();
    }
    for (String instance : newInstances) {
        idealState.setPartitionState(newSegmentNameStr, instance,
                PinotHelixSegmentOnlineOfflineStateModelGenerator.CONSUMING_STATE);
    }

    return idealState;
}

From source file:com.tobedevoured.naether.NaetherTest.java

private static void setEnv(Map<String, String> newenv) {
    try {//from  w  w w .  j  a  va 2  s  .c  o m
        Class<?> processEnvironmentClass = Class.forName("java.lang.ProcessEnvironment");
        Field theEnvironmentField = processEnvironmentClass.getDeclaredField("theEnvironment");
        theEnvironmentField.setAccessible(true);
        Map<String, String> env = (Map<String, String>) theEnvironmentField.get(null);
        env.putAll(newenv);
        Field theCaseInsensitiveEnvironmentField = processEnvironmentClass
                .getDeclaredField("theCaseInsensitiveEnvironment");
        theCaseInsensitiveEnvironmentField.setAccessible(true);
        Map<String, String> cienv = (Map<String, String>) theCaseInsensitiveEnvironmentField.get(null);
        cienv.putAll(newenv);
    } catch (NoSuchFieldException e) {
        try {
            Class[] classes = Collections.class.getDeclaredClasses();
            Map<String, String> env = System.getenv();
            for (Class cl : classes) {
                if ("java.util.Collections$UnmodifiableMap".equals(cl.getName())) {
                    Field field = cl.getDeclaredField("m");
                    field.setAccessible(true);
                    Object obj = field.get(env);
                    Map<String, String> map = (Map<String, String>) obj;
                    map.clear();
                    map.putAll(newenv);
                }
            }
        } catch (Exception e2) {
            e2.printStackTrace();
        }
    } catch (Exception e1) {
        e1.printStackTrace();
    }
}

From source file:com.evolveum.midpoint.gui.api.util.WebModelServiceUtils.java

public static <O extends ObjectType> List<ObjectReferenceType> createObjectReferenceList(Class<O> type,
        PageBase page, Map<String, String> referenceMap) {
    referenceMap.clear();

    OperationResult result = new OperationResult(OPERATION_LOAD_OBJECT_REFS);
    //        Task task = page.createSimpleTask(OPERATION_LOAD_PASSWORD_POLICIES);

    try {/* ww  w  . j av a  2  s. co  m*/
        List<PrismObject<O>> objects = searchObjects(type, null, result, page);
        result.recomputeStatus();
        if (objects != null) {
            List<ObjectReferenceType> references = new ArrayList<>();

            for (PrismObject<O> object : objects) {
                referenceMap.put(object.getOid(), WebComponentUtil.getName(object));
                references.add(ObjectTypeUtil.createObjectRef(object));

            }
            return references;
        }
    } catch (Exception e) {
        result.recordFatalError("Couldn't load password policies.", e);
        LoggingUtils.logUnexpectedException(LOGGER, "Couldn't load password policies", e);
    }

    // TODO - show error somehow
    // if(!result.isSuccess()){
    //    getPageBase().showResult(result);
    // }

    return null;

}

From source file:com.redhat.rhn.manager.ssm.SsmOperationManager.java

/**
 * Creates a new operation, defaulting the status to "in progress".
 * <p/>/*from  ww  w .  j ava  2 s.c  o  m*/
 * For efficiency, this call assumes the following:
 * <ul>
 * <li>The set of servers that are taking place in the operation are already in the
 * database as an RhnSet (the name of set is passed into this call).</li>
 * <li>The server ID is stored in the first element (i.e. "element" in the set table).
 * </ul>
 * <p/>
 * This should be a safe assumption since, at very least, if all servers are taking
 * place in the operation they are already in the SSM RhnSet. If only a subset
 * is needed, a nested select can be used to drop them into a new set, preventing
 * the need to have another insert per server for this call.
 *
 * @param user        user under which to associate the operation; cannot be
 *                    <code>null</code>
 * @param description high level description of what the operation is doing;
 *                    cannot be <code>null</code>
 * @param rhnSetLabel references a RhnSet with the server IDs to associate with the
 *                    new operation; if this is <code>null</code> no mappings will
 *                    be created at this time
 * @return the id of the created operation
 */
public static long createOperation(User user, String description, String rhnSetLabel) {
    if (user == null) {
        throw new IllegalArgumentException("user cannot be null");
    }

    if (description == null) {
        throw new IllegalArgumentException("description cannot be null");
    }

    SelectMode selectMode;
    WriteMode writeMode;
    Map<String, Object> params = new HashMap<String, Object>();

    // Select the operation ID manually from the sequence so we can add the mappings
    // from the operation to the servers
    selectMode = ModeFactory.getMode("ssm_operation_queries", "get_seq_nextval");
    DataResult nextValResult = selectMode.execute(params);
    Map<String, Object> nextValMap = (Map<String, Object>) nextValResult.get(0);
    long operationId = (Long) nextValMap.get("nextval");

    // Add the operation data
    writeMode = ModeFactory.getWriteMode("ssm_operation_queries", "create_operation");

    params.clear();
    params.put("op_id", operationId);
    params.put("user_id", user.getId());
    params.put("description", description);
    params.put("status", SsmOperationStatus.IN_PROGRESS.getText());

    writeMode.executeUpdate(params);

    // Add the server/operation mappings
    if (rhnSetLabel != null) {
        associateServersWithOperation(operationId, user.getId(), rhnSetLabel);
    }

    return operationId;
}

From source file:com.zb.app.common.util.PinyinParser.java

/**
 * ???(??)/*  w  w w .j  a v  a 2 s . co  m*/
 * 
 * @param args
 */
private static Set<String> parseTheChineseByObject(List<Map<String, Integer>> list) {
    Map<String, Integer> first = null; // ?,???
    // ????
    for (int i = 0; i < list.size(); i++) {
        // ???Map
        Map<String, Integer> temp = new Hashtable<String, Integer>();
        // first
        if (first != null) {
            // ????
            for (String s : first.keySet()) {
                for (String s1 : list.get(i).keySet()) {
                    String str = s + s1;
                    temp.put(str, 1);
                }
            }
            // ???
            if (temp != null && temp.size() > 0) {
                first.clear();
            }
        } else {
            for (String s : list.get(i).keySet()) {
                String str = s;
                temp.put(str, 1);
            }
        }
        // ???
        if (temp != null && temp.size() > 0) {
            first = temp;
        }
    }
    Set<String> result = new HashSet<String>();
    if (first != null) {
        // ????
        for (String str : first.keySet()) {
            result.add(str);
        }
    }
    return result;
}