Example usage for java.beans Introspector getBeanInfo

Introduction

In this page you can find the example usage for java.beans Introspector getBeanInfo.

Prototype

public static BeanInfo getBeanInfo(Class<?> beanClass) throws IntrospectionException 

Source Link

Document

Introspect on a Java Bean and learn about all its properties, exposed methods, and events.

Usage

From source file:org.soybeanMilk.core.bean.PropertyInfo.java

private static PropertyInfo getPropertyInfoAnatomized(Class<?> beanClass,
        Map<Class<?>, PropertyInfo> localExists, int depth) {
    PropertyInfo cached = propertyInfoCache.get(beanClass);
    if (cached != null) {
        if (log.isDebugEnabled())
            log.debug(getSpace(depth) + "got " + SbmUtils.toString(beanClass)
                    + " property information from cache");

        return cached;
    }/*from  ww w  .j  a v a 2s.co m*/

    if (log.isDebugEnabled())
        log.debug(getSpace(depth) + "start  anatomizing " + SbmUtils.toString(beanClass)
                + " property information");

    PropertyInfo beanInfo = new PropertyInfo(beanClass);

    localExists.put(beanInfo.getPropType(), beanInfo);

    PropertyDescriptor[] pds = null;

    try {
        pds = Introspector.getBeanInfo(beanInfo.getPropType()).getPropertyDescriptors();
    } catch (IntrospectionException e) {
        throw new RuntimeException(e);
    }

    if (pds == null || pds.length == 0)
        ;
    else {
        for (PropertyDescriptor pd : pds) {
            String name = pd.getName();
            Method wm = pd.getWriteMethod();
            Method rm = pd.getReadMethod();
            Class<?> propertyClazz = pd.getPropertyType();

            //?
            if (wm == null || rm == null || !Modifier.isPublic(wm.getModifiers())
                    || !Modifier.isPublic(rm.getModifiers()))
                continue;

            //localExists?PropertyInfo
            PropertyInfo exist = localExists.get(propertyClazz);
            if (exist == null)
                exist = getPropertyInfoAnatomized(propertyClazz, localExists, depth + 1);

            //???
            PropertyInfo copied = new PropertyInfo(beanClass, propertyClazz, name, rm, wm);
            copied.setSubPropertyInfos(exist.getSubPropertyInfos());

            beanInfo.addSubPropertyInfo(copied);

            if (log.isDebugEnabled())
                log.debug(getSpace(depth) + " add " + SbmUtils.toString(copied));
        }
    }

    if (log.isDebugEnabled())
        log.debug(getSpace(depth) + "finish anatomizing " + SbmUtils.toString(beanClass)
                + " property information");

    propertyInfoCache.putIfAbsent(beanClass, beanInfo);

    return beanInfo;
}

---

From source file:kg.apc.jmeter.config.redis.RedisDataSet.java

/**
 * Override the setProperty method in order to convert
 * the original String calcMode property.
 * This used the locale-dependent display value, so caused
 * problems when the language was changed.
 * Note that the calcMode StringProperty is replaced with an IntegerProperty
 * so the conversion only needs to happen once.
 *//*from   w  w w. ja v  a  2  s.c  o m*/
@Override
public void setProperty(JMeterProperty property) {
    if (property instanceof StringProperty) {
        final String pn = property.getName();
        if (pn.equals("getMode")) {
            final Object objectValue = property.getObjectValue();
            try {
                final BeanInfo beanInfo = Introspector.getBeanInfo(this.getClass());
                final ResourceBundle rb = (ResourceBundle) beanInfo.getBeanDescriptor()
                        .getValue(GenericTestBeanCustomizer.RESOURCE_BUNDLE);
                for (Enum<GetMode> e : GetMode.values()) {
                    final String propName = e.toString();
                    if (objectValue.equals(rb.getObject(propName))) {
                        final int tmpMode = e.ordinal();
                        if (log.isDebugEnabled()) {
                            log.debug("Converted " + pn + "=" + objectValue + " to mode=" + tmpMode
                                    + " using Locale: " + rb.getLocale());
                        }
                        super.setProperty(pn, tmpMode);
                        return;
                    }
                }
                log.warn("Could not convert " + pn + "=" + objectValue + " using Locale: " + rb.getLocale());
            } catch (IntrospectionException e) {
                log.error("Could not find BeanInfo", e);
            }
        } else if (pn.equals("whenExhaustedAction")) {
            final Object objectValue = property.getObjectValue();
            try {
                final BeanInfo beanInfo = Introspector.getBeanInfo(this.getClass());
                final ResourceBundle rb = (ResourceBundle) beanInfo.getBeanDescriptor()
                        .getValue(GenericTestBeanCustomizer.RESOURCE_BUNDLE);
                for (Enum<WhenExhaustedAction> e : WhenExhaustedAction.values()) {
                    final String propName = e.toString();
                    if (objectValue.equals(rb.getObject(propName))) {
                        final int tmpMode = e.ordinal();
                        if (log.isDebugEnabled()) {
                            log.debug("Converted " + pn + "=" + objectValue + " to mode=" + tmpMode
                                    + " using Locale: " + rb.getLocale());
                        }
                        super.setProperty(pn, tmpMode);
                        return;
                    }
                }
                log.warn("Could not convert " + pn + "=" + objectValue + " using Locale: " + rb.getLocale());
            } catch (IntrospectionException e) {
                log.error("Could not find BeanInfo", e);
            }
        }
    }
    super.setProperty(property);
}

---

From source file:com.krm.dbaudit.common.utils.Collections3.java

/** 
 *  Map  JavaBean //from  ww  w  . jav  a  2s. co  m
 * @param type ? 
 * @param map ? map 
 * @return ? JavaBean  
 * @throws IntrospectionException ? 
 * @throws IllegalAccessException  JavaBean  
 * @throws InstantiationException  JavaBean  
 * @throws InvocationTargetException  setter  
 */
public static Object convertMap(Class type, Map map) throws IntrospectionException, IllegalAccessException,
        InstantiationException, InvocationTargetException {
    BeanInfo beanInfo = Introspector.getBeanInfo(type); // ?   
    Object obj = type.newInstance(); //  JavaBean    

    //  JavaBean    
    PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
    for (int i = 0; i < propertyDescriptors.length; i++) {
        PropertyDescriptor descriptor = propertyDescriptors[i];
        String propertyName = descriptor.getName();

        if (map.containsKey(propertyName)) {
            // ??? try ???   
            Object value = map.get(propertyName);
            if (propertyName.equals("id") || propertyName.equals("parentId")) {
                value = Long.valueOf(value.toString());
            }
            if (value instanceof Number) {
                value = Long.valueOf(value.toString());
            } else if (value instanceof Date) {
                value = (Date) value;
            }
            Object[] args = new Object[1];
            args[0] = value;
            descriptor.getWriteMethod().invoke(obj, args);
        }
    }
    return obj;
}

---

From source file:org.zht.framework.util.ZBeanUtil.java

@SuppressWarnings({ "unchecked", "rawtypes" })
public static Map convertBeanToMap(Object bean) {
    Map returnMap = null;/* ww w  . j  a v a2  s.  c  o m*/
    try {
        Class<?> type = bean.getClass();
        BeanInfo beanInfo = Introspector.getBeanInfo(type);
        PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
        //           MethodAccess access = MethodAccess.get(type.getClass());
        returnMap = new HashMap();
        for (PropertyDescriptor property : propertyDescriptors) {
            String properName = property.getName();
            Method getter = property.getReadMethod();
            Object value = getter.invoke(bean);
            returnMap.put(properName, value);
            //
            //            Object value=access.invoke(bean,"get" + ZStrUtil.toUpCaseFirst(properName));
            //            if (value != null){
            //               returnMap.put(properName, value);
            //            }else{
            //               returnMap.put(properName, null);
            //            }

        }
    } catch (Exception e) {
        e.printStackTrace();
        return returnMap;
    }
    return returnMap;
}

---

From source file:org.hawkular.inventory.impl.tinkerpop.sql.impl.SqlGraph.java

private void setupDataSource(DataSource dataSource, Configuration configuration) throws Exception {
    BeanInfo beanInfo = Introspector.getBeanInfo(dataSource.getClass());
    PropertyDescriptor[] properties = beanInfo.getPropertyDescriptors();
    Map<String, PropertyDescriptor> propsByName = new HashMap<>();
    for (PropertyDescriptor p : properties) {
        propsByName.put(p.getName().toLowerCase(), p);
    }/*from ww w  .j a v  a  2 s .  co m*/

    Iterator it = configuration.getKeys("sql.datasource");
    while (it.hasNext()) {
        String key = (String) it.next();
        String property = key.substring("sql.datasource.".length()).toLowerCase();

        PropertyDescriptor d = propsByName.get(property);

        if (d == null) {
            continue;
        }

        Method write = d.getWriteMethod();
        if (write != null) {
            write.invoke(dataSource, configuration.getProperty(key));
        }
    }
}

---

From source file:org.apache.jmeter.testbeans.gui.TestBeanGUI.java

public TestBeanGUI(Class<?> testBeanClass) {
    super();//w  w  w. j a  v a 2  s. c o  m
    log.debug("testing class: " + testBeanClass.getName());
    // A quick verification, just in case:
    if (!TestBean.class.isAssignableFrom(testBeanClass)) {
        Error e = new Error();
        log.error("This should never happen!", e);
        throw e; // Programming error: bail out.
    }

    this.testBeanClass = testBeanClass;

    // Get the beanInfo:
    try {
        beanInfo = Introspector.getBeanInfo(testBeanClass);
    } catch (IntrospectionException e) {
        log.error("Can't get beanInfo for " + testBeanClass.getName(), e);
        throw new Error(e.toString()); // Programming error. Don't
                                       // continue.
    }

    customizerClass = beanInfo.getBeanDescriptor().getCustomizerClass();

    // Creation of the customizer and GUI initialization is delayed until
    // the
    // first
    // configure call. We don't need all that just to find out the static
    // label, menu
    // categories, etc!
    initialized = false;
    JMeterUtils.addLocaleChangeListener(this);
}

---

From source file:org.opendaylight.controller.cluster.datastore.DatastoreContextIntrospector.java

/**
 * Finds the getter method on a yang-generated type for the specified property name.
 *///  w  w  w . java 2s .  com
private static void findYangTypeGetter(Class<?> type, String propertyName) throws Exception {
    for (PropertyDescriptor desc : Introspector.getBeanInfo(type).getPropertyDescriptors()) {
        if (desc.getName().equals(propertyName)) {
            yangTypeGetters.put(type, desc.getReadMethod());
            return;
        }
    }

    throw new IllegalArgumentException(String.format(
            "Getter method for constructor property %s not found for YANG type %s", propertyName, type));
}

---

From source file:org.androidtransfuse.processor.ManifestManager.java

private <T extends Mergeable> void updateMergeTags(Class<T> clazz, T mergeable) throws MergerException {
    try {/*from www  . j  av a  2  s  . com*/
        mergeable.setGenerated(true);

        BeanInfo beanInfo = Introspector.getBeanInfo(clazz);

        for (PropertyDescriptor propertyDescriptor : beanInfo.getPropertyDescriptors()) {
            Method readMethod = propertyDescriptor.getReadMethod();
            Method writeMethod = propertyDescriptor.getWriteMethod();

            Merge mergeAnnotation = findAnnotation(Merge.class, writeMethod, readMethod);
            Object property = PropertyUtils.getProperty(mergeable, propertyDescriptor.getName());

            if (mergeAnnotation != null && property != null) {
                mergeable.addMergeTag(mergeAnnotation.value());
            }
        }
    } catch (IntrospectionException e) {
        throw new MergerException(e);
    } catch (InvocationTargetException e) {
        throw new MergerException(e);
    } catch (NoSuchMethodException e) {
        throw new MergerException(e);
    } catch (IllegalAccessException e) {
        throw new MergerException(e);
    }
}

---

From source file:com.siberhus.tdfl.mapping.BeanWrapLineMapper.java

@SuppressWarnings("unchecked")
protected Properties getBeanProperties(Object bean, Properties properties) throws IntrospectionException {

    Class<?> cls = bean.getClass();

    String[] namesCache = propertyNamesCache.get(cls);
    if (namesCache == null) {
        List<String> setterNames = new ArrayList<String>();
        BeanInfo beanInfo = Introspector.getBeanInfo(cls);
        PropertyDescriptor propDescs[] = beanInfo.getPropertyDescriptors();
        for (PropertyDescriptor propDesc : propDescs) {
            if (propDesc.getWriteMethod() != null) {
                setterNames.add(propDesc.getName());
            }//  w  w w  .  j av a 2 s  .c o m
        }
        propertyNamesCache.put(cls, setterNames.toArray(new String[0]));
    }
    // Map from field names to property names
    Map<String, String> matches = propertiesMatched.get(cls);
    if (matches == null) {
        matches = new HashMap<String, String>();
        propertiesMatched.put(cls, matches);
    }

    @SuppressWarnings("rawtypes")
    Set<String> keys = new HashSet(properties.keySet());
    for (String key : keys) {

        if (matches.containsKey(key)) {
            switchPropertyNames(properties, key, matches.get(key));
            continue;
        }

        String name = findPropertyName(bean, key);

        if (name != null) {
            matches.put(key, name);
            switchPropertyNames(properties, key, name);
        }
    }

    return properties;
}

---

From source file:io.fabric8.devops.ProjectConfigs.java

/**
 * Configures the given {@link ProjectConfig} with a map of key value pairs from
 * something like a JBoss Forge command//from www.jav a 2s.co  m
 */
public static void configureProperties(ProjectConfig config, Map map) {
    Class<? extends ProjectConfig> clazz = config.getClass();
    BeanInfo beanInfo = null;
    try {
        beanInfo = Introspector.getBeanInfo(clazz);
    } catch (IntrospectionException e) {
        LOG.warn("Could not introspect " + clazz.getName() + ". " + e, e);
    }
    if (beanInfo != null) {
        PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
        for (PropertyDescriptor descriptor : propertyDescriptors) {
            Method writeMethod = descriptor.getWriteMethod();
            if (writeMethod != null) {
                String name = descriptor.getName();
                Object value = map.get(name);
                if (value != null) {
                    Object safeValue = null;
                    Class<?> propertyType = descriptor.getPropertyType();
                    if (propertyType.isInstance(value)) {
                        safeValue = value;
                    } else {
                        PropertyEditor editor = descriptor.createPropertyEditor(config);
                        if (editor == null) {
                            editor = PropertyEditorManager.findEditor(propertyType);
                        }
                        if (editor != null) {
                            String text = value.toString();
                            editor.setAsText(text);
                            safeValue = editor.getValue();
                        } else {
                            LOG.warn("Cannot update property " + name + " with value " + value + " of type "
                                    + propertyType.getName() + " on " + clazz.getName());
                        }
                    }
                    if (safeValue != null) {
                        try {
                            writeMethod.invoke(config, safeValue);
                        } catch (Exception e) {
                            LOG.warn("Failed to set property " + name + " with value " + value + " on "
                                    + clazz.getName() + " " + config + ". " + e, e);
                        }

                    }
                }
            }
        }
    }
    String flow = null;
    Object flowValue = map.get("pipeline");
    if (flowValue == null) {
        flowValue = map.get("flow");
    }
    if (flowValue != null) {
        flow = flowValue.toString();
    }
    config.setPipeline(flow);
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• »