Example usage for org.springframework.util Assert notNull

Introduction

In this page you can find the example usage for org.springframework.util Assert notNull.

Prototype

public static void notNull(@Nullable Object object, Supplier<String> messageSupplier)

Source Link

Document

Assert that an object is not null .

Usage

From source file:com.athena.peacock.agent.Starter.java

/**
 * <pre>//from  w w w. j a  va 2 s.  c om
 * 
 * </pre>
 * @param args
 */
@SuppressWarnings("resource")
public static void main(String[] args) {

    int rand = (int) (Math.random() * 100) % 50;
    System.setProperty("random.seconds", Integer.toString(rand));

    String configFile = null;

    try {
        configFile = PropertyUtil.getProperty(PeacockConstant.CONFIG_FILE_KEY);
    } catch (Exception e) {
        // nothing to do.
    } finally {
        if (StringUtils.isEmpty(configFile)) {
            configFile = "/peacock/agent/config/agent.conf";
        }
    }

    /**
     * ${peacock.agent.config.file.name} ?? load  ? ??   ? ?  ? .
     */
    String errorMsg = "\n\"" + configFile + "\" file does not exist or cannot read.\n" + "Please check \""
            + configFile + "\" file exists and can read.";

    Assert.isTrue(AgentConfigUtil.exception == null, errorMsg);
    Assert.notNull(AgentConfigUtil.getConfig(PeacockConstant.SERVER_IP), "ServerIP cannot be empty.");
    Assert.notNull(AgentConfigUtil.getConfig(PeacockConstant.SERVER_PORT), "ServerPort cannot be empty.");

    /**
     * Agent ID ??  ${peacock.agent.agent.file.name} ?   ?, 
     *  ?? ?   Agent ID ? ?? .
     */
    String agentFile = null;
    String agentId = null;

    try {
        agentFile = PropertyUtil.getProperty(PeacockConstant.AGENT_ID_FILE_KEY);
    } catch (Exception e) {
        // nothing to do.
    } finally {
        if (StringUtils.isEmpty(agentFile)) {
            agentFile = "/peacock/agent/.agent";
        }
    }

    File file = new File(agentFile);
    boolean isNew = false;

    if (file.exists()) {
        try {
            agentId = IOUtils.toString(file.toURI());

            // ? ? agent ID  agent ID? ? 36? ?   ?.
            if (StringUtils.isEmpty(agentId) || agentId.length() != 36) {
                throw new IOException();
            }
        } catch (IOException e) {
            logger.error(agentFile + " file cannot read or saved invalid agent ID.", e);

            agentId = PeacockAgentIDGenerator.generateId();
            isNew = true;
        }
    } else {
        agentId = PeacockAgentIDGenerator.generateId();
        isNew = true;
    }

    if (isNew) {
        logger.info("New Agent-ID({}) be generated.", agentId);

        try {
            file.setWritable(true);
            OutputStreamWriter output = new OutputStreamWriter(new FileOutputStream(file));
            output.write(agentId);
            file.setReadOnly();
            IOUtils.closeQuietly(output);
        } catch (UnsupportedEncodingException e) {
            logger.error("UnsupportedEncodingException has occurred : ", e);
        } catch (FileNotFoundException e) {
            logger.error("FileNotFoundException has occurred : ", e);
        } catch (IOException e) {
            logger.error("IOException has occurred : ", e);
        }
    }

    // Spring Application Context Loading
    logger.debug("Starting application context...");
    AbstractApplicationContext applicationContext = new ClassPathXmlApplicationContext(
            "classpath:spring/context-*.xml");
    applicationContext.registerShutdownHook();
}

From source file:Main.java

/**
 * Check whether the given element is contained in the given scopes.
 *
 * @param element element to checking//from  w w  w. ja  va  2 s  .c  om
 * @param scopes  scopes to checking element
 * @param <T>     element type
 * @return checking result.
 */
public static <T> boolean contains(T element, Collection<T> scopes) {
    Assert.notNull(element, "Element to checking must not be null.");
    Assert.notNull(scopes, "Checking scopes must not be null.");
    return scopes.contains(element);
}

From source file:org.obiba.mica.dataset.support.HarmonizedDatasetHelper.java

public static TablesMerger newTablesMerger(List<HarmonizationDataset> datasets) {
    Assert.notNull(datasets, "Dataset list cannot be null.");
    return new TablesMerger(datasets);
}

From source file:grails.plugin.springevents.ProxyUtils.java

public static Object ultimateTarget(Object candidate) {
    Assert.notNull(candidate, "Candidate object must not be null");
    Object current = candidate;//from  w  w w.  ja  va 2 s  .c o m
    while (current instanceof TargetClassAware) {
        Object nested = null;
        if (current instanceof Advised) {
            TargetSource targetSource = ((Advised) current).getTargetSource();
            if (targetSource instanceof SingletonTargetSource) {
                nested = ((SingletonTargetSource) targetSource).getTarget();
            }
        }
        current = nested;
    }
    return current;
}

From source file:com.foilen.smalltools.tools.SpringTools.java

public static void configure(Object object) {
    Assert.notNull(instance, "The SpringConfigurer is not yet inside a Spring container");
    instance.beanConfigurerSupport.configureBean(object);
}

From source file:com.azaptree.services.command.util.CommandUtils.java

public static <T> T get(final Context ctx, final TypeReferenceKey<T> key) {
    Assert.notNull(ctx, "ctx is required");
    Assert.notNull(key, "key is required");
    final T t = (T) ctx.get(key.getName());
    return t != null ? t : key.getDefaultValue();
}

From source file:fr.mby.portal.coreimpl.acl.AclHelper.java

public static Set<IRole> buileRoleSet(final IRole... roles) {
    Assert.notNull(roles, "No roles supplied !");
    final Set<IRole> set = new HashSet<IRole>(roles.length);
    for (final IRole role : roles) {
        if (role != null) {
            set.add(role);//from ww  w  .ja va  2 s.  c o  m
        }
    }
    return set;
}

From source file:Main.java

/**
 * Check whether the given element is contained in the given scopes.
 *
 * @param element element to checking// w  ww  .  j a v a  2 s.c  o m
 * @param scopes  scopes to checking element
 * @param <T>     element type
 * @return checking result.
 */
public static <T> boolean contains(T element, T... scopes) {
    Assert.notNull(element, "Element to checking must not be null.");
    Assert.notNull(scopes, "Checking scopes must not be null.");
    return Stream.of(scopes).filter(t -> t.equals(element)).findFirst().isPresent();
}

From source file:com.joyveb.dbpimpl.cass.prepare.util.ParsingUtils.java

public static void setPropertyValue(BeanDefinitionBuilder builder, Element element, String attrName,
        String propertyName) {// w  ww  .  ja v a 2s. c o m

    Assert.notNull(builder, "BeanDefinitionBuilder must not be null");
    Assert.notNull(element, "Element must not be null");
    Assert.hasText(attrName, "Attribute name must not be null");
    Assert.hasText(propertyName, "Property name must not be null");

    String attr = element.getAttribute(attrName);

    if (StringUtils.hasText(attr)) {
        builder.addPropertyValue(propertyName, attr);
    }
}

From source file:at.porscheinformatik.common.spring.web.extended.util.ParboiledUtils.java

public static <T> List<T> buildFromResult(ParsingResult<T> result, String resourceDescription) {
    Assert.notNull(result, "Got null Result while parsing template " + resourceDescription);

    if (result.hasErrors()) {
        throw new IllegalArgumentException(buildErrorMessag(result, resourceDescription));
    }//from   w w w .  j a  v  a 2s  .  c  om

    Assert.isTrue(result.matched, "Template " + resourceDescription + " does not match the required format ");

    List<T> parts = new ArrayList<>(result.valueStack.size());

    for (T part : result.valueStack) {
        parts.add(0, part);
    }

    return parts;
}