Example usage for java.lang.reflect Array getLength

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

  1. HOME
  2. Java
  3. java
  4. java.lang.reflect.*
  5. Array
  6. getLength

Introduction

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

Prototype

@HotSpotIntrinsicCandidate
public static native int getLength(Object array) throws IllegalArgumentException;

Source Link

Document

Returns the length of the specified array object, as an int .

Usage

From source file:edu.ucla.stat.SOCR.analyses.gui.Chart.java

protected XYDataset createXYDataset(String serie1, double x[], double y[], String serie2, double y_intercept,
        double slope) {

    XYSeries series1 = new XYSeries(serie1);
    for (int i = 0; i < Array.getLength(x); i++) {
        series1.add(x[i], y[i]);//from  ww w  . ja  v a2 s.  com
    }

    XYSeries series2 = new XYSeries(serie2);
    double min_x, min_y, max_x, max_y;

    min_x = 1000;
    max_x = -1000;
    for (int i = 0; i < Array.getLength(x); i++) {
        if (min_x > x[i])
            min_x = x[i];
        if (max_x < x[i])
            max_x = x[i];
    }

    min_y = slope * min_x + y_intercept;
    max_y = slope * max_x + y_intercept;

    series2.add(min_x, min_y);
    series2.add(max_x, max_y);

    XYSeriesCollection dataset = new XYSeriesCollection();
    dataset.addSeries(series1);
    dataset.addSeries(series2);

    return dataset;
}

From source file:com.googlecode.fightinglayoutbugs.helpers.TestHelper.java

/**
 * Works for strings, arrays, collections, and maps.
 *//* ww  w.  j a  v a2s.  co m*/
public static Matcher<Object> isEmpty() {
    return new BaseMatcher<Object>() {
        @Override
        public boolean matches(Object o) {
            final boolean result;
            if (o == null) {
                result = false;
            } else if (o instanceof CharSequence || o instanceof StringWriter) {
                final String s = o.toString();
                result = (s.length() == 0);
            } else if (o instanceof Collection) {
                result = ((Collection) o).isEmpty();
            } else if (o instanceof Map) {
                result = ((Map) o).isEmpty();
            } else if (o.getClass().isArray()) {
                result = (Array.getLength(o) == 0);
            } else {
                throw new RuntimeException("Don't know how to handle object of type " + o.getClass().getName());
            }
            return result;
        }

        @Override
        public void describeTo(Description description) {
            description.appendText("empty");
        }
    };
}

From source file:com.streamsets.datacollector.http.JMXJsonServlet.java

private void writeObject(JsonGenerator jg, Object value) throws IOException {
    if (value == null) {
        jg.writeNull();/* w  ww . j  av  a 2 s .  com*/
    } else {
        Class<?> c = value.getClass();
        if (c.isArray()) {
            jg.writeStartArray();
            int len = Array.getLength(value);
            for (int j = 0; j < len; j++) {
                Object item = Array.get(value, j);
                writeObject(jg, item);
            }
            jg.writeEndArray();
        } else if (value instanceof Number) {
            Number n = (Number) value;
            jg.writeNumber(n.toString());
        } else if (value instanceof Boolean) {
            Boolean b = (Boolean) value;
            jg.writeBoolean(b);
        } else if (value instanceof CompositeData) {
            CompositeData cds = (CompositeData) value;
            CompositeType comp = cds.getCompositeType();
            Set<String> keys = comp.keySet();
            jg.writeStartObject();
            for (String key : keys) {
                writeAttribute(jg, key, cds.get(key));
            }
            jg.writeEndObject();
        } else if (value instanceof TabularData) {
            TabularData tds = (TabularData) value;
            jg.writeStartArray();
            for (Object entry : tds.values()) {
                writeObject(jg, entry);
            }
            jg.writeEndArray();
        } else if (value instanceof GaugeValue) {
            ((GaugeValue) value).serialize(jg);
        } else {
            jg.writeString(value.toString());
        }
    }
}

From source file:adams.ml.Dataset.java

@Override
public String toString() {
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < count(); i++) {
        DataRow dr = get(i);/*  ww  w.j  a  v a2 s  . c  o  m*/
        for (String s : dr.getKeys()) {
            Object o = dr.getObject(s);
            if (o != null && o.getClass().isArray()) {
                sb.append("(" + s + ":");
                for (int j = 0; j < Array.getLength(o); j++) {
                    Object p = Array.get(o, j);
                    sb.append(p.toString());
                    if (j < Array.getLength(o) - 1) {
                        sb.append(",");
                    }
                }
                sb.append(")");
            } else if (o != null) {
                sb.append("(" + s + ":" + o.toString() + ")");
            }
        }
        sb.append("\n");
    }
    return (sb.toString());
}

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

private static void recursiveRender(EventBean theEvent, StringBuilder buf, int level, RendererMeta meta,
        RendererMetaOptions rendererMetaOptions) {
    GetterPair[] simpleProps = meta.getSimpleProperties();
    for (GetterPair simpleProp : simpleProps) {
        Object value = simpleProp.getGetter().get(theEvent);

        if (value == null) {
            continue;
        }/*from  w w  w .  j  a  va2s  . co  m*/

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

        if (rendererMetaOptions.getRenderer() == null) {
            simpleProp.getOutput().render(value, buf);
        } else {
            EventPropertyRendererContext context = rendererMetaOptions.getRendererContext();
            context.setStringBuilderAndReset(buf);
            context.setPropertyName(simpleProp.getName());
            context.setPropertyValue(value);
            context.setDefaultRenderer(simpleProp.getOutput());
            rendererMetaOptions.getRenderer().render(context);
        }

        buf.append("</");
        buf.append(simpleProp.getName());
        buf.append('>');
        buf.append(NEWLINE);
    }

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

        if (value == null) {
            continue;
        }
        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());
        buf.append('>');
        buf.append(NEWLINE);

        if (value != null) {
            Map<String, Object> map = (Map<String, Object>) value;
            if (!map.isEmpty()) {
                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) {
                        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(entry.getKey());
                    buf.append('>');
                    localDelimiter = NEWLINE;
                }
            }
        }

        buf.append(NEWLINE);
        ident(buf, level);
        buf.append("</");
        buf.append(mappedProp.getName());
        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;
            }
            renderElementFragment((EventBean) value, buf, level, nestedProp, rendererMetaOptions);
        } 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];
                if (arrayItem == null) {
                    continue;
                }
                renderElementFragment(arrayItem, buf, level, nestedProp, rendererMetaOptions);
            }
        }
    }
}

From source file:io.wcm.caconfig.editor.impl.ConfigDataServlet.java

private Object toJsonValue(Object value) {
    if (value == null) {
        return null;
    }//from w  w  w.  j  av  a2s  . c o m
    if (value.getClass().isArray()) {
        JSONArray array = new JSONArray();
        for (int i = 0; i < Array.getLength(value); i++) {
            array.put(Array.get(value, i));
        }
        return array;
    } else {
        return value;
    }
}

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

private static void recursiveRender(EventBean theEvent, StringBuilder buf, int level, RendererMeta meta,
        RendererMetaOptions rendererMetaOptions) {
    GetterPair[] simpleProps = meta.getSimpleProperties();
    for (GetterPair simpleProp : simpleProps) {
        Object value = simpleProp.getGetter().get(theEvent);

        if (value == null) {
            continue;
        }/* ww  w.  j  av  a2  s  .  co m*/

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

        if (rendererMetaOptions.getRenderer() == null) {
            simpleProp.getOutput().render(value, buf);
        } else {
            EventPropertyRendererContext context = rendererMetaOptions.getRendererContext();
            context.setStringBuilderAndReset(buf);
            context.setPropertyName(simpleProp.getName());
            context.setPropertyValue(value);
            context.setDefaultRenderer(simpleProp.getOutput());
            rendererMetaOptions.getRenderer().render(context);
        }

        buf.append("</");
        buf.append(simpleProp.getName());
        buf.append('>');
        buf.append(NEWLINE);
    }

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

        if (value == null) {
            continue;
        }
        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());
        buf.append('>');
        buf.append(NEWLINE);

        if (value != null) {
            Map<String, Object> map = (Map<String, Object>) value;
            if (!map.isEmpty()) {
                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) {
                        OutputValueRenderer outputValueRenderer = OutputValueRendererFactory
                                .getOutputValueRenderer(entry.getValue().getClass(), rendererMetaOptions);
                        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(entry.getKey());
                    buf.append('>');
                    localDelimiter = NEWLINE;
                }
            }
        }

        buf.append(NEWLINE);
        ident(buf, level);
        buf.append("</");
        buf.append(mappedProp.getName());
        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;
            }
            renderElementFragment((EventBean) value, buf, level, nestedProp, rendererMetaOptions);
        } 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];
                if (arrayItem == null) {
                    continue;
                }
                renderElementFragment(arrayItem, buf, level, nestedProp, rendererMetaOptions);
            }
        }
    }
}

From source file:com.streamsets.datacollector.bundles.content.SdcInfoContentGenerator.java

private void writeObject(JsonGenerator jg, Object value) throws IOException {
    if (value == null) {
        jg.writeNull();//from   w  ww  . j a  v  a2s  .c o  m
    } else {
        Class<?> c = value.getClass();
        if (c.isArray()) {
            jg.writeStartArray();
            int len = Array.getLength(value);
            for (int j = 0; j < len; j++) {
                Object item = Array.get(value, j);
                writeObject(jg, item);
            }
            jg.writeEndArray();
        } else if (value instanceof Number) {
            Number n = (Number) value;
            if (value instanceof Double && (((Double) value).isInfinite() || ((Double) value).isNaN())) {
                jg.writeString(n.toString());
            } else {
                jg.writeNumber(n.toString());
            }
        } else if (value instanceof Boolean) {
            Boolean b = (Boolean) value;
            jg.writeBoolean(b);
        } else if (value instanceof CompositeData) {
            CompositeData cds = (CompositeData) value;
            CompositeType comp = cds.getCompositeType();
            Set<String> keys = comp.keySet();
            jg.writeStartObject();
            for (String key : keys) {
                writeAttribute(jg, key, cds.get(key));
            }
            jg.writeEndObject();
        } else if (value instanceof TabularData) {
            TabularData tds = (TabularData) value;
            jg.writeStartArray();
            for (Object entry : tds.values()) {
                writeObject(jg, entry);
            }
            jg.writeEndArray();
        } else if (value instanceof GaugeValue) {
            ((GaugeValue) value).serialize(jg);
        } else {
            jg.writeString(value.toString());
        }
    }
}

From source file:gov.nih.nci.caarray.plugins.agilent.AgilentRawTextDataHandlerTest.java

private void checkColumnLength(HybridizationData hybridizationData,
        AgilentTextQuantitationType quantitationType, int expectedColumnLength) {
    try {//from w w w  . j av  a  2s . co m
        final AbstractDataColumn column = hybridizationData.getColumn(quantitationType);
        assertNotNull(column);
        final Object array = PropertyUtils.getProperty(column, "values");
        assertEquals(expectedColumnLength, Array.getLength(array));
    } catch (final IllegalAccessException ex) {
        ex.printStackTrace();
        fail(ex.toString());
    } catch (final InvocationTargetException ex) {
        ex.printStackTrace();
        fail(ex.toString());
    } catch (final NoSuchMethodException ex) {
        ex.printStackTrace();
        fail(ex.toString());
    }
}

From source file:com.google.feedserver.util.BeanUtil.java

/**
 * Compares two JavaBeans for equality by comparing their properties and the
 * class of the beans.//from  w w  w .jav  a 2 s.  c  o m
 * 
 * @param bean1 Bean to compare
 * @param bean2 Bean to compare
 * @return True if {@code bean2} has the same properties with the same values
 *         as {@code bean1} and if they share the same class.
 */
public boolean equals(Object bean1, Object bean2) throws IntrospectionException, IllegalArgumentException,
        IllegalAccessException, InvocationTargetException {
    if ((null == bean1) && (null == bean2)) {
        return true;
    } else if ((null == bean1) || (null == bean2)) {
        return false;
    }
    if (bean1.getClass() != bean2.getClass()) {
        return false;
    }
    if (bean1.getClass().isArray() && bean2.getClass().isArray()) {
        if (Array.getLength(bean1) != Array.getLength(bean2)) {
            return false;
        }
        for (int i = 0; i < Array.getLength(bean1); i++) {
            if (!equals(Array.get(bean1, i), Array.get(bean2, i))) {
                return false;
            }
        }
        return true;
    } else if (bean1.getClass().isArray()) {
        return false;
    } else if (bean2.getClass().isArray()) {
        return false;
    } else if (isBean(bean1.getClass())) {
        BeanInfo bean1Info;
        try {
            bean1Info = Introspector.getBeanInfo(bean1.getClass(), Object.class);
        } catch (IntrospectionException e) {
            return false;
        }
        for (PropertyDescriptor p : bean1Info.getPropertyDescriptors()) {
            Method reader = p.getReadMethod();
            if (reader != null) {
                try {
                    Object value1 = reader.invoke(bean1);
                    Object value2 = reader.invoke(bean2);
                    if (!equals(value1, value2)) {
                        return false;
                    }
                } catch (IllegalArgumentException e) {
                    return false;
                } catch (IllegalAccessException e) {
                    return false;
                } catch (InvocationTargetException e) {
                    return false;
                }
            }
        }
        return true;
    } else {
        return bean1.equals(bean2);
    }
}