Example usage for java.lang Class isInstance

Introduction

In this page you can find the example usage for java.lang Class isInstance.

Prototype

@HotSpotIntrinsicCandidate
public native boolean isInstance(Object obj);

Source Link

Document

Determines if the specified Object is assignment-compatible with the object represented by this Class .

Usage

From source file:com.architexa.diagrams.jdt.builder.ReloASTExtractor.java

public ASTNode getParent(Class<?> inst) {
    Iterator<ASTNode> it = context.iterator();
    it.next(); // the first items is itself, the second one is parent
    while (it.hasNext()) {
        ASTNode node = it.next();/*from   w w w . ja  va2s.c  om*/
        if (inst.isInstance(node)) {
            return node;
        }
    }
    return null;
}

From source file:edu.wisc.http.converter.xml.JaxbMarshallingHttpMessageConverter.java

@Override
protected Object readFromSource(Class<?> clazz, HttpHeaders headers, Source source) throws IOException {
    try {// www. ja  va 2s.com
        final Unmarshaller unmarshaller = this.jaxbContext.createUnmarshaller();

        Object result = unmarshaller.unmarshal(source, clazz);
        if (result instanceof JAXBElement<?>) {
            result = ((JAXBElement<?>) result).getValue();
        }

        if (!clazz.isInstance(result)) {
            throw new TypeMismatchException(result, clazz);
        }
        return result;
    } catch (JAXBException e) {
        throw new HttpMessageNotReadableException("Could not read [" + clazz + "]", e);
    }
}

From source file:com.yahoo.bullet.result.RecordBox.java

private <T> Map<String, T> asMap(Class<T> clazz, Map.Entry<String, Object>... entries) {
    Objects.requireNonNull(clazz);
    Objects.requireNonNull(entries);
    Map<String, T> newMap = new LinkedHashMap<>(entries.length);
    for (Map.Entry<String, Object> entry : entries) {
        Object object = entry.getValue();
        if (object != null && !clazz.isInstance(object)) {
            throw new RuntimeException("Object " + object + " is not an instance of class " + clazz.getName());
        }/*from  ww  w .j av a2 s  . c  om*/
        newMap.put(entry.getKey(), (T) entry.getValue());
    }
    return newMap;
}

From source file:org.nobel.highriseapi.mapper.SimpleXmlHttpMessageConverter.java

@Override
protected Object readInternal(Class<? extends Object> clazz, HttpInputMessage inputMessage)
        throws IOException, HttpMessageNotReadableException {

    Reader source = new InputStreamReader(inputMessage.getBody(), getCharset(inputMessage.getHeaders()));

    try {//w  w w .  j a v  a 2 s .c  o m
        Object result = this.serializer.read(clazz, source);
        if (!clazz.isInstance(result)) {
            throw new TypeMismatchException(result, clazz);
        }
        return result;
    } catch (Exception ex) {
        throw new HttpMessageNotReadableException("Could not read [" + clazz + "]", ex);
    }
}

From source file:org.carewebframework.api.AppFramework.java

/**
 * Finds a registered object belonging to the specified class.
 * //from  w w  w  .j a  v a2s .  co  m
 * @param clazz Returned object must be assignment-compatible with this class.
 * @param previousInstance Previous instance returned by this call. Search will start with the
 *            entry that follows this one in the list. If this parameter is null, the search
 *            starts at the beginning.
 * @return Reference to the discovered object or null if none found.
 */
public synchronized Object findObject(Class<?> clazz, Object previousInstance) {
    int i = previousInstance == null ? -1 : MiscUtil.indexOfInstance(registeredObjects, previousInstance);

    for (i++; i < registeredObjects.size(); i++) {
        Object object = registeredObjects.get(i);

        if (clazz.isInstance(object)) {
            return object;
        }
    }

    return null;
}

From source file:com.jaliansystems.activeMQLite.impl.ObjectRepository.java

/**
 * Publish an object./*from  w  w w.  ja  v a  2  s  .c o m*/
 * 
 * @param o
 *            the object
 * @param iface
 *            the interface implemented by the object.
 * @return the object handle
 */
public ObjectHandle publish(Object o, Class<?> iface) {
    if (!iface.isInterface())
        throw new IllegalAccessError("Only objects that implement interfaces can be exported");
    if (!iface.isInstance(o))
        throw new IllegalArgumentException("The object should implement the interface");
    publishedInterfaces.put(iface, o);
    exportedInterfaces.add(iface);
    return createHandle(o, iface);
}

From source file:com.aw.swing.mvp.action.ActionResolver.java

public List<Action> getActionsOfType(Class clazz) {
    List<Action> allActionsOfType = new ArrayList();
    Collection allActions = actions.values();
    for (Iterator iterator = allActions.iterator(); iterator.hasNext();) {
        Action action = (Action) iterator.next();
        if (clazz.isInstance(action)) {
            allActionsOfType.add(action);
        }//from   w w  w . j  av  a  2 s.c  o m
    }
    return allActionsOfType;
}

From source file:com.github.adejanovski.cassandra.jdbc.CassandraStatement.java

public <T> T unwrap(Class<T> iface) throws SQLException {
    if (iface.isInstance(this))
        return iface.cast(this);
    throw new SQLFeatureNotSupportedException(String.format(NO_INTERFACE, iface.getSimpleName()));
}

From source file:SampleAWTRenderer.java

/**
 * Return the control based on a control type for the PlugIn.
 *//*w ww.j  a  v  a 2 s  .c  o  m*/
public Object getControl(String controlType) {
    try {
        Class cls = Class.forName(controlType);
        Object cs[] = getControls();
        for (int i = 0; i < cs.length; i++) {
            if (cls.isInstance(cs[i]))
                return cs[i];
        }
        return null;
    } catch (Exception e) { // no such controlType or such control
        return null;
    }
}

From source file:com.jaeksoft.searchlib.webservice.query.CommonQuery.java

@SuppressWarnings("unchecked")
protected <T extends AbstractRequest> T getRequest(Client client, String template, Class<T> requestClass)
        throws SearchLibException {
    if (template == null || template.length() == 0)
        return null;
    AbstractRequest request = client.getNewRequest(template);
    if (!requestClass.isInstance(request))
        throw new CommonServiceException(
                "The template " + template + " don't have the expected type: " + request.getType().getLabel());
    return (T) request;
}