Example usage for java.lang.reflect Array get

List of usage examples for java.lang.reflect Array get

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Introduction

In this page you can find the example usage for java.lang.reflect Array get.

Prototype

public static native Object get(Object array, int index)
        throws IllegalArgumentException, ArrayIndexOutOfBoundsException;

Source Link

Document

Returns the value of the indexed component in the specified array object.

Usage

From source file:org.nabucco.alfresco.enhScriptEnv.common.script.converter.rhino.NativeArrayConverter.java

/**
 * {@inheritDoc}//from   ww w .  j  av a  2 s  .  c o  m
 */
@Override
public boolean canConvertValueForScript(final Object value, final ValueConverter globalDelegate,
        final Class<?> expectedClass) {
    boolean canConvert = expectedClass.isAssignableFrom(NativeArray.class);

    if (canConvert) {
        if (value instanceof Collection<?>) {
            final Collection<?> coll = (Collection<?>) value;
            for (final Object element : coll) {
                canConvert = canConvert && globalDelegate.canConvertValueForScript(element);

                if (!canConvert) {
                    break;
                }
            }
        } else if (value.getClass().isArray()) {
            final int length = Array.getLength(value);
            for (int idx = 0; idx < length && canConvert; idx++) {
                canConvert = canConvert && globalDelegate.canConvertValueForScript(Array.get(value, idx));
            }
        } else {
            canConvert = false;
        }
    }

    return canConvert;
}

From source file:com.frostwire.android.gui.StoragePicker.java

private static String getVolumePath(StorageManager mStorageManager, final String volumeId) {
    try {//from w w w.  j  a  v a2 s.c  om
        Class<?> storageVolumeClazz = Class.forName("android.os.storage.StorageVolume");

        Method getVolumeList = mStorageManager.getClass().getMethod("getVolumeList");
        Method getUuid = storageVolumeClazz.getMethod("getUuid");
        Method getPath = storageVolumeClazz.getMethod("getPath");
        Method isPrimary = storageVolumeClazz.getMethod("isPrimary");
        Object result = getVolumeList.invoke(mStorageManager);

        final int length = Array.getLength(result);
        for (int i = 0; i < length; i++) {
            Object storageVolumeElement = Array.get(result, i);
            String uuid = (String) getUuid.invoke(storageVolumeElement);
            Boolean primary = (Boolean) isPrimary.invoke(storageVolumeElement);

            // primary volume?
            if (primary && PRIMARY_VOLUME_NAME.equals(volumeId)) {
                return (String) getPath.invoke(storageVolumeElement);
            }

            // other volumes?
            if (uuid != null) {
                if (uuid.equals(volumeId)) {
                    return (String) getPath.invoke(storageVolumeElement);
                }
            }
        }

        // not found.
        return null;
    } catch (Exception ex) {
        return null;
    }
}

From source file:com.espertech.esper.event.util.JSONRendererImpl.java

private static void recursiveRender(EventBean theEvent, StringBuilder buf, int level, RendererMeta meta,
        RendererMetaOptions rendererOptions) {
    String delimiter = "";

    // simple properties
    GetterPair[] simpleProps = meta.getSimpleProperties();
    if (rendererOptions.getRenderer() == null) {
        for (GetterPair simpleProp : simpleProps) {
            Object value = simpleProp.getGetter().get(theEvent);
            writeDelimitedIndentedProp(buf, delimiter, level, simpleProp.getName());
            simpleProp.getOutput().render(value, buf);
            delimiter = COMMA_DELIMITER_NEWLINE;
        }/*ww w  . ja v  a  2 s.  co  m*/
    } else {
        EventPropertyRendererContext context = rendererOptions.getRendererContext();
        context.setStringBuilderAndReset(buf);
        for (GetterPair simpleProp : simpleProps) {
            Object value = simpleProp.getGetter().get(theEvent);
            writeDelimitedIndentedProp(buf, delimiter, level, simpleProp.getName());
            context.setDefaultRenderer(simpleProp.getOutput());
            context.setPropertyName(simpleProp.getName());
            context.setPropertyValue(value);
            rendererOptions.getRenderer().render(context);
            delimiter = COMMA_DELIMITER_NEWLINE;
        }
    }

    GetterPair[] indexProps = meta.getIndexProperties();
    for (GetterPair indexProp : indexProps) {
        Object value = indexProp.getGetter().get(theEvent);
        writeDelimitedIndentedProp(buf, delimiter, level, indexProp.getName());

        if (value == null) {
            buf.append("null");
        } else {
            if (!value.getClass().isArray()) {
                buf.append("[]");
            } else {
                buf.append('[');
                String arrayDelimiter = "";

                if (rendererOptions.getRenderer() == null) {
                    for (int i = 0; i < Array.getLength(value); i++) {
                        Object arrayItem = Array.get(value, i);
                        buf.append(arrayDelimiter);
                        indexProp.getOutput().render(arrayItem, buf);
                        arrayDelimiter = ", ";
                    }
                } else {
                    EventPropertyRendererContext context = rendererOptions.getRendererContext();
                    context.setStringBuilderAndReset(buf);
                    for (int i = 0; i < Array.getLength(value); i++) {
                        Object arrayItem = Array.get(value, i);
                        buf.append(arrayDelimiter);
                        context.setPropertyName(indexProp.getName());
                        context.setPropertyValue(arrayItem);
                        context.setIndexedPropertyIndex(i);
                        context.setDefaultRenderer(indexProp.getOutput());
                        rendererOptions.getRenderer().render(context);
                        arrayDelimiter = ", ";
                    }
                }
                buf.append(']');
            }
        }
        delimiter = COMMA_DELIMITER_NEWLINE;
    }

    GetterPair[] mappedProps = meta.getMappedProperties();
    for (GetterPair mappedProp : mappedProps) {
        Object value = mappedProp.getGetter().get(theEvent);

        if ((value != null) && (!(value instanceof Map))) {
            log.warn("Property '" + mappedProp.getName() + "' expected to return Map and returned "
                    + value.getClass() + " instead");
            continue;
        }

        writeDelimitedIndentedProp(buf, delimiter, level, mappedProp.getName());

        if (value == null) {
            buf.append("null");
            buf.append(NEWLINE);
        } else {
            Map<String, Object> map = (Map<String, Object>) value;
            if (map.isEmpty()) {
                buf.append("{}");
                buf.append(NEWLINE);
            } else {
                buf.append('{');
                buf.append(NEWLINE);

                String localDelimiter = "";
                Iterator<Map.Entry<String, Object>> it = map.entrySet().iterator();
                for (; it.hasNext();) {
                    Map.Entry<String, Object> entry = it.next();
                    if (entry.getKey() == null) {
                        continue;
                    }

                    buf.append(localDelimiter);
                    ident(buf, level + 1);
                    buf.append('\"');
                    buf.append(entry.getKey());
                    buf.append("\": ");

                    if (entry.getValue() == null) {
                        buf.append("null");
                    } else {
                        OutputValueRenderer outRenderer = OutputValueRendererFactory
                                .getOutputValueRenderer(entry.getValue().getClass(), rendererOptions);
                        if (rendererOptions.getRenderer() == null) {
                            outRenderer.render(entry.getValue(), buf);
                        } else {
                            EventPropertyRendererContext context = rendererOptions.getRendererContext();
                            context.setStringBuilderAndReset(buf);
                            context.setPropertyName(mappedProp.getName());
                            context.setPropertyValue(entry.getValue());
                            context.setMappedPropertyKey(entry.getKey());
                            context.setDefaultRenderer(outRenderer);
                            rendererOptions.getRenderer().render(context);
                        }
                    }
                    localDelimiter = COMMA_DELIMITER_NEWLINE;
                }

                buf.append(NEWLINE);
                ident(buf, level);
                buf.append('}');
            }
        }

        delimiter = COMMA_DELIMITER_NEWLINE;
    }

    NestedGetterPair[] nestedProps = meta.getNestedProperties();
    for (NestedGetterPair nestedProp : nestedProps) {
        Object value = nestedProp.getGetter().getFragment(theEvent);

        writeDelimitedIndentedProp(buf, delimiter, level, nestedProp.getName());

        if (value == null) {
            buf.append("null");
        } else if (!nestedProp.isArray()) {
            if (!(value instanceof EventBean)) {
                log.warn("Property '" + nestedProp.getName() + "' expected to return EventBean and returned "
                        + value.getClass() + " instead");
                buf.append("null");
                continue;
            }
            EventBean nestedEventBean = (EventBean) value;
            buf.append('{');
            buf.append(NEWLINE);

            recursiveRender(nestedEventBean, buf, level + 1, nestedProp.getMetadata(), rendererOptions);

            ident(buf, level);
            buf.append('}');
        } else {
            if (!(value instanceof EventBean[])) {
                log.warn("Property '" + nestedProp.getName() + "' expected to return EventBean[] and returned "
                        + value.getClass() + " instead");
                buf.append("null");
                continue;
            }

            StringBuilder arrayDelimiterBuf = new StringBuilder();
            arrayDelimiterBuf.append(',');
            arrayDelimiterBuf.append(NEWLINE);
            ident(arrayDelimiterBuf, level + 1);

            EventBean[] nestedEventArray = (EventBean[]) value;
            String arrayDelimiter = "";
            buf.append('[');

            for (int i = 0; i < nestedEventArray.length; i++) {
                EventBean arrayItem = nestedEventArray[i];
                buf.append(arrayDelimiter);
                arrayDelimiter = arrayDelimiterBuf.toString();

                buf.append('{');
                buf.append(NEWLINE);

                recursiveRender(arrayItem, buf, level + 2, nestedProp.getMetadata(), rendererOptions);

                ident(buf, level + 1);
                buf.append('}');
            }
            buf.append(']');
        }
        delimiter = COMMA_DELIMITER_NEWLINE;
    }

    buf.append(NEWLINE);
}

From source file:edu.sdsc.scigraph.neo4j.GraphUtil.java

static <T> Set<T> getPropertiesAsSet(Object value, Class<T> type) {
    Set<T> set = new HashSet<>();
    if (value.getClass().isArray()) {
        List<Object> objects = new ArrayList<>();
        for (int i = 0; i < Array.getLength(value); i++) {
            objects.add(Array.get(value, i));
        }//from   ww  w .  j a v a 2s. c  o  m
        for (Object o : objects) {
            set.add(type.cast(o));
        }
    } else {
        set.add(type.cast(value));
    }
    return set;
}

From source file:de.pribluda.android.jsonmarshaller.JSONMarshaller.java

/**
 * recursively marshall [multidimensional? - of course!!! ] array
 *
 * @param array/*w  ww .  j  a v  a2 s. c o  m*/
 * @return
 */
public static JSONArray marshallArray(Object array)
        throws InvocationTargetException, NoSuchMethodException, JSONException, IllegalAccessException {
    if (array != null && array.getClass().isArray()) {
        Class<?> componentType = array.getClass().getComponentType();
        JSONArray retval = new JSONArray();
        final int arrayLength = Array.getLength(array);
        // stirngs and primitives must be marshalled directly
        if (componentType.isPrimitive() || String.class.equals(componentType)) {

            for (int i = 0; i < arrayLength; i++) {
                retval.put(Array.get(array, i));
            }
        } else if (componentType.isArray()) {
            // that's cool, nested array recurse
            for (int i = 0; i < arrayLength; i++) {
                retval.put(marshallArray(Array.get(array, i)));
            }
        } else {
            // treat component as a bean   if it got default constructor
            try {
                if (componentType.getConstructor() != null) {
                    for (int i = 0; i < arrayLength; i++) {
                        retval.put(marshall(Array.get(array, i)));
                    }
                }
            } catch (NoSuchMethodException ex) {
                // just ignore it here, it means no such constructor was found
            }
        }

        return retval;
    }

    return null;
}

From source file:net.sourceforge.jaulp.lang.ObjectUtils.java

/**
 * Try to clone the given object./*from  w w w. ja  v a2  s . c  o  m*/
 *
 * @param object
 *            The object to clone.
 * @return The cloned object or null if the clone process failed.
 * @throws NoSuchMethodException
 *             the no such method exception
 * @throws SecurityException
 *             Thrown if the security manager indicates a security violation.
 * @throws IllegalAccessException
 *             the illegal access exception
 * @throws IllegalArgumentException
 *             the illegal argument exception
 * @throws InvocationTargetException
 *             the invocation target exception
 * @throws ClassNotFoundException
 *             the class not found exception
 * @throws InstantiationException
 *             the instantiation exception
 * @throws IOException
 *             Signals that an I/O exception has occurred.
 */
public static Object cloneObject(final Object object)
        throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException,
        InvocationTargetException, ClassNotFoundException, InstantiationException, IOException {
    Object clone = null;
    // Try to clone the object if it implements Serializable.
    if (object instanceof Serializable) {
        clone = SerializedObjectUtils.copySerializedObject((Serializable) object);
        if (clone != null) {
            return clone;
        }
    }
    // Try to clone the object if it is Cloneble.
    if (clone == null && object instanceof Cloneable) {

        if (object.getClass().isArray()) {
            final Class<?> componentType = object.getClass().getComponentType();
            if (componentType.isPrimitive()) {
                int length = Array.getLength(object);
                clone = Array.newInstance(componentType, length);
                while (length-- > 0) {
                    Array.set(clone, length, Array.get(object, length));
                }
            } else {
                clone = ((Object[]) object).clone();
            }
            if (clone != null) {
                return clone;
            }
        }
        Class<?> clazz = object.getClass();
        Method cloneMethod = clazz.getMethod("clone", (Class[]) null);
        clone = cloneMethod.invoke(object, (Object[]) null);
        if (clone != null) {
            return clone;
        }
    }
    // Try to clone the object by copying all his properties with
    // the BeanUtils.copyProperties() method.
    if (clone == null) {
        clone = ReflectionUtils.getNewInstance(object);
        BeanUtils.copyProperties(clone, object);
    }
    return clone;
}

From source file:net.sf.json.JSONDynaBean.java

/**
 * DOCUMENT ME!//w  w w  .ja  v a  2 s.co  m
 *
 * @param name DOCUMENT ME!
 * @param index DOCUMENT ME!
 *
 * @return DOCUMENT ME!
 */
public Object get(String name, int index) {
    Object value = dynaValues.get(name);

    if (value == null) {
        throw new NullPointerException("Unindexed property name: " + name + " index: " + index);
    } else if (!(value instanceof List) || !(value.getClass().isArray())) {
        throw new IllegalArgumentException("Non-Indexed property name: " + name + " index: " + index);
    }

    if (value.getClass().isArray()) {
        value = Array.get(value, index);
    } else if (value instanceof List) {
        value = ((List) value).get(index);
    }

    return value;
}

From source file:org.apache.hawq.pxf.plugins.hdfs.WritableResolver.java

int setArrayField(List<OneField> record, int dataType, Field reflectedField) throws IllegalAccessException {
    Object array = reflectedField.get(userObject);
    int length = Array.getLength(array);
    for (int j = 0; j < length; j++) {
        record.add(new OneField(dataType, Array.get(array, j)));
    }/*w w  w. jav a2  s .c  o m*/
    return length;
}

From source file:cz.vse.esper.XMLRenderer.java

private String renderAttElements(EventBean theEvent, int level, RendererMeta meta) {
    StringBuilder buf = new StringBuilder();

    GetterPair[] indexProps = meta.getIndexProperties();
    for (GetterPair indexProp : indexProps) {
        Object value = indexProp.getGetter().get(theEvent);

        if (value == null) {
            continue;
        }/* w  w  w  .j  a v a 2  s . co m*/
        if (!value.getClass().isArray()) {
            log.warn("Property '" + indexProp.getName() + "' returned a non-array object");
            continue;
        }
        for (int i = 0; i < Array.getLength(value); i++) {
            Object arrayItem = Array.get(value, i);

            if (arrayItem == null) {
                continue;
            }

            ident(buf, level);
            buf.append('<');
            buf.append(indexProp.getName());
            buf.append('>');
            if (rendererMetaOptions.getRenderer() == null) {
                indexProp.getOutput().render(arrayItem, buf);
            } else {
                EventPropertyRendererContext context = rendererMetaOptions.getRendererContext();
                context.setStringBuilderAndReset(buf);
                context.setPropertyName(indexProp.getName());
                context.setPropertyValue(arrayItem);
                context.setIndexedPropertyIndex(i);
                context.setDefaultRenderer(indexProp.getOutput());
                rendererMetaOptions.getRenderer().render(context);
            }
            buf.append("</");
            buf.append(indexProp.getName());
            buf.append('>');
            buf.append(NEWLINE);
        }
    }

    GetterPair[] mappedProps = meta.getMappedProperties();
    for (GetterPair mappedProp : mappedProps) {
        Object value = mappedProp.getGetter().get(theEvent);

        if ((value != null) && (!(value instanceof Map))) {
            log.warn("Property '" + mappedProp.getName() + "' expected to return Map and returned "
                    + value.getClass() + " instead");
            continue;
        }

        ident(buf, level);
        buf.append('<');
        buf.append(mappedProp.getName());

        if (value != null) {
            Map<String, Object> map = (Map<String, Object>) value;
            if (!map.isEmpty()) {
                Iterator<Map.Entry<String, Object>> it = map.entrySet().iterator();
                for (; it.hasNext();) {
                    Map.Entry<String, Object> entry = it.next();
                    if ((entry.getKey() == null) || (entry.getValue() == null)) {
                        continue;
                    }

                    buf.append(" ");
                    buf.append(entry.getKey());
                    buf.append("=\"");
                    OutputValueRenderer outputValueRenderer = new OutputValueRendererXMLString();

                    if (rendererMetaOptions.getRenderer() == null) {
                        outputValueRenderer.render(entry.getValue(), buf);
                    } else {
                        EventPropertyRendererContext context = rendererMetaOptions.getRendererContext();
                        context.setStringBuilderAndReset(buf);
                        context.setPropertyName(mappedProp.getName());
                        context.setPropertyValue(entry.getValue());
                        context.setMappedPropertyKey(entry.getKey());
                        context.setDefaultRenderer(outputValueRenderer);
                        rendererMetaOptions.getRenderer().render(context);
                    }

                    buf.append("\"");
                }
            }
        }

        buf.append("/>");
        buf.append(NEWLINE);
    }

    NestedGetterPair[] nestedProps = meta.getNestedProperties();
    for (NestedGetterPair nestedProp : nestedProps) {
        Object value = nestedProp.getGetter().getFragment(theEvent);

        if (value == null) {
            continue;
        }

        if (!nestedProp.isArray()) {
            if (!(value instanceof EventBean)) {
                log.warn("Property '" + nestedProp.getName() + "' expected to return EventBean and returned "
                        + value.getClass() + " instead");
                buf.append("null");
                continue;
            }
            EventBean nestedEventBean = (EventBean) value;
            renderAttInner(buf, level, nestedEventBean, nestedProp);
        } else {
            if (!(value instanceof EventBean[])) {
                log.warn("Property '" + nestedProp.getName() + "' expected to return EventBean[] and returned "
                        + value.getClass() + " instead");
                buf.append("null");
                continue;
            }

            EventBean[] nestedEventArray = (EventBean[]) value;
            for (int i = 0; i < nestedEventArray.length; i++) {
                EventBean arrayItem = nestedEventArray[i];
                renderAttInner(buf, level, arrayItem, nestedProp);
            }
        }
    }

    return buf.toString();
}

From source file:jp.terasoluna.fw.web.struts.form.DynaValidatorActionFormEx.java

/**
 * CfbNXtv?peB?B/* w  ww . ja va  2s.  com*/
 *
 * <p>
 *  CfbNXOnull
 *  StrutsftHgg?B
 * </p>
 *
 * @param name tB?[h
 * @param index CfbNX
 * @return v?peBl
 */
@Override
public Object get(String name, int index) {
    if (log.isDebugEnabled()) {
        log.debug("get(" + name + ", " + index + ") called.");
    }

    Object value = dynaValues.get(name);
    if (value == null) {
        throw new NullPointerException("No indexed value for '" + name + "[" + index + "]'");
    } else if (value.getClass().isArray()) {
        try {
            return (Array.get(value, index));
        } catch (ArrayIndexOutOfBoundsException e) {
            return null;
        }
    } else if (value instanceof List) {
        try {
            return ((List) value).get(index);
        } catch (IndexOutOfBoundsException e) {
            return null;
        }
    } else {
        throw new IllegalArgumentException("Non-indexed property for '" + name + "[" + index + "]'");
    }
}