Example usage for java.util.concurrent.atomic AtomicReference get

Introduction

In this page you can find the example usage for java.util.concurrent.atomic AtomicReference get.

Prototype

public final V get() 

Source Link

Document

Returns the current value, with memory effects as specified by VarHandle#getVolatile .

Usage

From source file:com.bfd.harpc.monitor.RpcMonitor.java

/**
 * ???/*from   w  w  w  .j  ava 2s. c  o m*/
 * <p>
 */
protected void send() {
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("Start send statistics to zookeeper!");
    }

    // 
    for (Map.Entry<ServerNode, AtomicReference<StatisticsInfo>> entry : statisticsMap.entrySet()) {
        // ??
        ServerNode serverNode = entry.getKey();
        AtomicReference<StatisticsInfo> reference = entry.getValue();
        StatisticsInfo numbers;
        do {
            numbers = reference.get();
        } while (!reference.compareAndSet(numbers, null)); // ?

        StatisticsInfo info = new StatisticsInfo();
        if (numbers != null) {
            info.setSuccess(numbers.getSuccess());
            info.setFailure(numbers.getFailure());
            info.setMaxtime(numbers.getMaxtime());
            info.setMintime(numbers.getMintime());
            info.setAvgtime(numbers.getAvgtime());

            startTimeMap.putIfAbsent(serverNode, startTime);
            long useTime = System.currentTimeMillis() - startTimeMap.get(serverNode);
            startTimeMap.put(serverNode, System.currentTimeMillis()); // ?

            info.setQps(1000 / (useTime / (float) (numbers.getSuccess() + numbers.getFailure())));
        }

        // ???
        sendToZookeeper(serverNode, info, false);
    }
    // ??clientservernode????
    startTime = System.currentTimeMillis();

    // 
    for (Map.Entry<ServerNode, AtomicReference<StatisticsInfo>> entry : totalStatisticsMap.entrySet()) {
        // ??
        ServerNode serverNode = entry.getKey();
        AtomicReference<StatisticsInfo> reference = entry.getValue();
        StatisticsInfo numbers = reference.get();

        StatisticsInfo info = new StatisticsInfo();
        if (numbers != null) {
            info.setSuccess(numbers.getSuccess());
            info.setFailure(numbers.getFailure());
            info.setMaxtime(numbers.getMaxtime());
            info.setMintime(numbers.getMintime());
            info.setAvgtime(numbers.getAvgtime());
            long useTime = System.currentTimeMillis() - beginTime;
            info.setQps(1000 / (useTime / (float) (numbers.getSuccess() + numbers.getFailure())));
        }

        // ???
        sendToZookeeper(serverNode, info, true);
    }
}

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From source file:com.microsoft.tfs.client.common.ui.protocolhandler.ProtocolHandler.java

private boolean tryParseTfsLink(final String tfsLink) {
    final String decodedTfsLink;
    try {/* www  . jav a 2 s. co  m*/
        decodedTfsLink = new String(Base64.decodeBase64(tfsLink), "UTF-8"); //$NON-NLS-1$
    } catch (final UnsupportedEncodingException e) {
        log.error("Incorrectly encoded the tfslink query parameter in the protocol handler URI", e); //$NON-NLS-1$
        return false;
    }

    final String[] tfsLinkItems = decodedTfsLink.split("&"); //$NON-NLS-1$
    Map<String, AtomicReference<String>> tfsLinkItemMap = prepareTfsLinkItemMap();

    for (final String tfsLinkItem : tfsLinkItems) {
        final int idx = tfsLinkItem.indexOf("="); //$NON-NLS-1$

        final String itemName;
        final String itemValue;
        if (idx < 0) {
            itemName = tfsLinkItem;
            itemValue = StringUtil.EMPTY;
        } else {
            itemName = tfsLinkItem.substring(0, idx);
            itemValue = tfsLinkItem.substring(idx + 1);
        }

        if (tfsLinkItemMap.containsKey(itemName)) {
            log.info(MessageFormat.format("                          {0}={1}", //$NON-NLS-1$
                    itemName, itemValue));

            tfsLinkItemMap.get(itemName).set(itemValue);
        }
    }

    if (tfsLinkItemMap.get(PROTOCOL_HANDLER_SERVER_URL_ITEM).get() != null) {
        /*
         * A temporary patch. Should be removed after the TFS server is
         * fixed and sends a collection URL instead of server URL and
         * collection ID.
         */
        final URI cloneUrl = URIUtils.newURI(tfsLinkItemMap.get(PROTOCOL_HANDLER_CLONE_URL_ITEM).get());
        if (ServerURIUtils.isHosted(cloneUrl)) {
            final URI uriCandidate = URIUtils.newURI(cloneUrl.getScheme(), cloneUrl.getAuthority());
            tfsLinkItemMap.get(PROTOCOL_HANDLER_COLLECTION_URL_ITEM).set(uriCandidate.toASCIIString());
        }
    }

    if (tfsLinkItemMap.get(PROTOCOL_HANDLER_COLLECTION_URL_ITEM).get() == null) {
        tfsLinkItemMap.remove(PROTOCOL_HANDLER_COLLECTION_URL_ITEM);
        isCollectionUrlAvailable = false;
    } else {
        tfsLinkItemMap.remove(PROTOCOL_HANDLER_COLLECTION_ID_ITEM);
        tfsLinkItemMap.remove(PROTOCOL_HANDLER_SERVER_URL_ITEM);
        isCollectionUrlAvailable = true;
    }

    for (final AtomicReference<String> value : tfsLinkItemMap.values()) {
        if (value.get() == null) {
            return false;
        }
    }

    return true;
}

---

From source file:eu.eubrazilcc.lvl.storage.TokenCollectionTest.java

@Test
public void test() {
    System.out.println("TokenCollectionTest.test()");
    try {/*from  w  w w. j  ava 2s.c o m*/
        final Collection<String> scopes = newArrayList("scope1", "scope2", "scope2/username1", "scope3,a");
        // insert
        final AccessToken accessToken = AccessToken.builder().token("1234567890abcdEFGhiJKlMnOpqrstUVWxyZ")
                .issuedAt(currentTimeMillis() / 1000l).expiresIn(23l).ownerId("username1").scope(scopes)
                .build();
        TOKEN_DAO.insert(accessToken);

        // find
        AccessToken accessToken2 = TOKEN_DAO.find(accessToken.getToken());
        assertThat("access token is not null", accessToken2, notNullValue());
        assertThat("access token coincides with original", accessToken2, equalTo(accessToken));
        System.out.println(accessToken2.toString());

        // update
        accessToken.setExpiresIn(604800l);
        TOKEN_DAO.update(accessToken);

        // find after update
        accessToken2 = TOKEN_DAO.find(accessToken.getToken());
        assertThat("access token is not null", accessToken2, notNullValue());
        assertThat("access token coincides with original", accessToken2, equalTo(accessToken));
        System.out.println(accessToken2.toString());

        // list by owner Id
        List<AccessToken> accessTokens = TOKEN_DAO.listByOwnerId(accessToken.getOwnerId());
        assertThat("access tokens are not null", accessTokens, notNullValue());
        assertThat("access tokens are not empty", !accessTokens.isEmpty(), equalTo(true));
        assertThat("number of access tokens coincides with expected", accessTokens.size(), equalTo(1));
        assertThat("access tokens coincide with original", accessTokens.get(0), equalTo(accessToken));

        // check validity         
        boolean validity = TOKEN_DAO.isValid(accessToken.getToken());
        assertThat("access token is valid", validity, equalTo(true));

        final AtomicReference<String> ownerIdRef = new AtomicReference<String>();
        validity = TOKEN_DAO.isValid(accessToken.getToken(), ownerIdRef);
        assertThat("access token is valid using target scope", validity, equalTo(true));
        assertThat("owner id coincides is not null", ownerIdRef.get(), notNullValue());
        assertThat("owner id coincides with expected", ownerIdRef.get(), equalTo(accessToken.getOwnerId()));

        // remove
        TOKEN_DAO.delete(accessToken.getToken());
        final long numRecords = TOKEN_DAO.count();
        assertThat("number of access tokens stored in the database coincides with expected", numRecords,
                equalTo(0l));

        // pagination
        final List<String> ids = newArrayList();
        for (int i = 0; i < 11; i++) {
            final AccessToken accessToken3 = AccessToken.builder().token(Integer.toString(i)).build();
            ids.add(accessToken3.getToken());
            TOKEN_DAO.insert(accessToken3);
        }
        final int size = 3;
        int start = 0;
        accessTokens = null;
        final MutableLong count = new MutableLong(0l);
        do {
            accessTokens = TOKEN_DAO.list(start, size, null, null, null, count);
            if (accessTokens.size() != 0) {
                System.out.println("Paging: first item " + start + ", showing " + accessTokens.size() + " of "
                        + count.getValue() + " items");
            }
            start += accessTokens.size();
        } while (!accessTokens.isEmpty());
        for (final String id2 : ids) {
            TOKEN_DAO.delete(id2);
        }
        TOKEN_DAO.stats(System.out);
    } catch (Exception e) {
        e.printStackTrace(System.err);
        fail("TokenCollectionTest.test() failed: " + e.getMessage());
    } finally {
        System.out.println("TokenCollectionTest.test() has finished");
    }
}

---

From source file:com.chiorichan.scheduler.ChioriScheduler.java

private void addTask(final ChioriTask task) {
    final AtomicReference<ChioriTask> tail = this.tail;
    ChioriTask tailTask = tail.get();
    while (!tail.compareAndSet(tailTask, task)) {
        tailTask = tail.get();//from ww w.  ja  v a  2s  . c  o  m
    }
    tailTask.setNext(task);
}

---

From source file:org.bpmscript.process.hibernate.SpringHibernateInstanceManagerTest.java

public void testInstanceManager() throws Exception {

    ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
            "/org/bpmscript/endtoend/spring.xml");

    final IInstanceManager instanceManager = (IInstanceManager) context.getBean("instanceManager");

    final String pid1 = instanceManager.createInstance("parentVersion", "definitionId", "test",
            IJavascriptProcessDefinition.DEFINITION_TYPE_JAVASCRIPT, "one");
    IInstance instance = instanceManager.getInstance(pid1);
    assertNotNull(instance);/* w w  w  .ja  v a 2  s  .co m*/

    instanceManager.createInstance("parentVersion", "definitionId", "test",
            IJavascriptProcessDefinition.DEFINITION_TYPE_JAVASCRIPT, "two");
    final AtomicReference<Queue<String>> results = new AtomicReference<Queue<String>>(new LinkedList<String>());
    Object operation = instanceManager.doWithInstance(pid1, new IInstanceCallback() {
        public IExecutorResult execute(IInstance instance) throws Exception {
            log.info("locking one");
            results.get().add("one");
            return new IgnoredResult("", "", "");
        }
    });
    assertTrue(operation instanceof IIgnoredResult);
}

---

From source file:com.microsoft.tfs.client.common.ui.console.ConsoleCoreEventListener.java

private void onGet(final GetEvent e) {
    e.getStatus();//from  ww w  .j  a  va  2  s. c om

    final AtomicReference<String> errorHolder = new AtomicReference<String>();
    final String messageString = e.getMessage(null, errorHolder);

    Message message;
    if (errorHolder.get() != null) {
        message = new Message(MessageType.ERROR, errorHolder.get());
    } else {
        message = new Message(MessageType.INFO, messageString);
    }

    printMessageToConsole(message);
}

---

From source file:com.microsoft.tfs.client.common.ui.teambuild.egit.dialogs.GitBuildDefinitionDialog.java

private String getBuildProjectRelativePath() {
    final String buildFileLocation = buildDefinition.getConfigurationFolderPath();
    final AtomicReference<String> path = new AtomicReference<String>();

    if (GitProperties.parseGitItemUrl(buildFileLocation, null, null, null, path)) {
        return path.get() + GitProperties.PathSeparator + BuildConstants.PROJECT_FILE_NAME;
    }//from  w  w w. j  ava 2s  . c  o m

    return null;
}

---

From source file:com.microsoft.tfs.client.common.ui.teambuild.egit.dialogs.GitBuildDefinitionDialog.java

private String getBuildResponseRelativePath() {
    final String buildFileLocation = buildDefinition.getConfigurationFolderPath();
    final AtomicReference<String> path = new AtomicReference<String>();

    if (GitProperties.parseGitItemUrl(buildFileLocation, null, null, null, path)) {
        return path.get() + GitProperties.PathSeparator + BuildConstants.RESPONSE_FILE_NAME;
    }/*w  w w  .  j a v a2  s.  c  o m*/

    return null;
}

---

From source file:com.example.app.ui.DemoUserProfileEditor.java

@Override
public ModificationState getModificationState() {
    if (!isInited())
        return ModificationState.UNCHANGED;
    final AtomicReference<ModificationState> state = new AtomicReference<>(ModificationState.UNCHANGED);
    _forEach(value -> {/*from   www . j av  a 2 s.  c  o  m*/
        if (!state.get().isModified() && value.getModificationState().isModified())
            state.set(ModificationState.CHANGED);
    });
    return state.get();
}

---

From source file:io.spring.initializr.metadata.Link.java

/**
 * Expand the link using the specified parameters.
 * @param parameters the parameters value
 * @return an URI where all variables have been expanded
 *///  w  ww. ja  v a2s  . com
public URI expand(Map<String, String> parameters) {
    AtomicReference<String> result = new AtomicReference<>(href);
    templateVariables.forEach(var -> {
        Object value = parameters.get(var);
        if (value == null) {
            throw new IllegalArgumentException(
                    "Could not expand " + href + ", missing value for '" + var + "'");
        }
        result.set(result.get().replace("{" + var + "}", value.toString()));
    });
    try {
        return new URI(result.get());
    } catch (URISyntaxException e) {
        throw new IllegalStateException("Invalid URL", e);
    }
}

---

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