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, Class<?> stopClass) throws IntrospectionException 

Source Link

Document

Introspect on a Java bean and learn all about its properties, exposed methods, below a given "stop" point.

Usage

From source file:com.esofthead.mycollab.common.interceptor.aspect.AuditLogUtil.java

static public String getChangeSet(Object oldObj, Object newObj, List<String> excludeFields,
        boolean isSelective) {
    Class cl = oldObj.getClass();
    List<AuditChangeItem> changeItems = new ArrayList<>();

    try {//w  w w  .  j a va 2s  . c  o m
        BeanInfo beanInfo = Introspector.getBeanInfo(cl, Object.class);

        for (PropertyDescriptor propertyDescriptor : beanInfo.getPropertyDescriptors()) {
            String fieldName = propertyDescriptor.getName();
            if (excludeFields.contains(fieldName)) {
                continue;
            }
            String oldProp = getValue(PropertyUtils.getProperty(oldObj, fieldName));

            Object newPropVal;
            try {
                newPropVal = PropertyUtils.getProperty(newObj, fieldName);
            } catch (Exception e) {
                continue;
            }
            String newProp = getValue(newPropVal);

            if (!oldProp.equals(newProp)) {
                if (isSelective && newProp.equals("")) {
                } else {
                    AuditChangeItem changeItem = new AuditChangeItem();
                    changeItem.setField(fieldName);
                    changeItem.setNewvalue(newProp);
                    changeItem.setOldvalue(oldProp);
                    changeItems.add(changeItem);
                }
            }
        }
    } catch (Exception e) {
        LOG.error("There is error when convert changeset", e);
        return null;
    }

    return (changeItems.size() > 0) ? JsonDeSerializer.toJson(changeItems) : null;
}

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From source file:com.gisgraphy.rest.BeanToRestParameter.java

public static String toQueryString(Object object) {
    if (object == null) {
        throw new RestClientException("Can not get queryString for null object");
    }//from  ww w.j a  v  a 2 s.  c o m
    StringBuilder sb = new StringBuilder(128);
    try {
        boolean first = true;
        String andValue = "&";
        for (PropertyDescriptor thisPropertyDescriptor : Introspector
                .getBeanInfo(object.getClass(), Object.class).getPropertyDescriptors()) {
            Object property = PropertyUtils.getProperty(object, thisPropertyDescriptor.getName());
            if (property != null) {
                sb.append(first ? "?" : andValue);
                sb.append(thisPropertyDescriptor.getName());
                sb.append("=");
                sb.append(URLEncoder.encode(property.toString(), Constants.CHARSET));
                first = false;
            }
        }
    } catch (Exception e) {
        throw new RestClientException("can not generate url for bean: " + e.getMessage(), e);
    }
    return sb.toString();
}

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From source file:com.ginema.api.reflection.ReflectionUtils.java

public static Method getGetterMethod2(Class clazz, String name) throws IntrospectionException {

    PropertyDescriptor desc[] = Introspector.getBeanInfo(clazz, Object.class).getPropertyDescriptors();
    for (PropertyDescriptor d : desc) {
        return d.getReadMethod();
    }/*from w  w w  .j a  va2  s.co m*/
    return null;
}

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From source file:org.openengsb.core.util.BeanUtilsExtended.java

/**
 * Analyzes the bean and returns a map containing the property-values. Works similar to
 * {@link BeanUtils#describe(Object)} but does not convert everything to strings.
 * //  ww  w  .j av  a 2  s.c o  m
 * @throws IllegalArgumentException if the bean cannot be analyzed properly. Probably because some getter throw an
 *         Exception
 */
public static Map<String, Object> buildObjectAttributeMap(Object bean) throws IllegalArgumentException {
    BeanInfo beanInfo;
    try {
        beanInfo = Introspector.getBeanInfo(bean.getClass(), Object.class);
    } catch (IntrospectionException e1) {
        throw new IllegalArgumentException(e1);
    }
    Map<String, Object> result;
    result = Maps.newHashMap();
    for (PropertyDescriptor pDesc : beanInfo.getPropertyDescriptors()) {
        String name = pDesc.getName();
        Object propertyValue;
        try {
            propertyValue = pDesc.getReadMethod().invoke(bean);
        } catch (IllegalAccessException e) {
            // this should never happen since the Introspector only returns accessible read-methods
            LOGGER.error("WTF: got property descriptor with inaccessible read-method");
            throw new IllegalStateException(e);
        } catch (InvocationTargetException e) {
            ReflectionUtils.handleInvocationTargetException(e);
            throw new IllegalStateException("Should never get here");
        }
        if (propertyValue != null) {
            result.put(name, propertyValue);
        }
    }
    return result;
}

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From source file:no.sesat.search.datamodel.generic.MapDataObjectBeanInfo.java

/**
 *
 * @param name//from   w  w w .  j a v  a  2 s .  c  o m
 * @param cls
 * @return
 */
public static PropertyDescriptor[] addSingleMappedPropertyDescriptor(final String name, final Class<?> cls) {

    try {
        final PropertyDescriptor[] existing = Introspector.getBeanInfo(cls, Introspector.IGNORE_ALL_BEANINFO)
                .getPropertyDescriptors();
        // remove this introspection from the cache to avoid reuse of the IGNORE_ALL_BEANINFO result
        Introspector.flushFromCaches(cls);

        final PropertyDescriptor[] result = new PropertyDescriptor[existing.length + 2];
        System.arraycopy(existing, 0, result, 0, existing.length);
        result[existing.length] = new MappedPropertyDescriptor(name, cls);
        if (!System.getProperty("java.version").startsWith("1.6")) {
            fixForJavaBug4984912(cls, (MappedPropertyDescriptor) result[existing.length]);
        }

        final String captialised = Character.toUpperCase(name.charAt(0)) + name.substring(1);
        try {
            // try plural with "s" first, then fall back onto "es"
            result[existing.length + 1] = new PropertyDescriptor(name + 's', cls, "get" + captialised + 's',
                    null);
        } catch (IntrospectionException ie) {
            // who on earth designed the english language!?? :@
            result[existing.length + 1] = new PropertyDescriptor(name + "es", cls, "get" + captialised + 's',
                    null);
        }
        return result;

    } catch (IntrospectionException ex) {
        LOG.error(ex.getMessage(), ex);
        throw new IllegalStateException('[' + cls.getSimpleName() + ']' + ex.getMessage(), ex);
    }
}

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From source file:com.gisgraphy.rest.BeanToRestParameter.java

public static Map<String, String> ToMap(Object object) {
    if (object == null) {
        throw new RestClientException("Can not get queryString for null object");
    }/*  ww  w. java2 s. com*/
    Map<String, String> result = new HashMap<String, String>();
    try {
        for (PropertyDescriptor thisPropertyDescriptor : Introspector
                .getBeanInfo(object.getClass(), Object.class).getPropertyDescriptors()) {
            Object property = PropertyUtils.getProperty(object, thisPropertyDescriptor.getName());
            if (property != null) {
                result.put(thisPropertyDescriptor.getName(), property.toString());
            }
        }
    } catch (Exception e) {
        throw new RestClientException("can not generate Map for bean : " + e.getMessage(), e);
    }
    return result;
}

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From source file:com.metaparadigm.jsonrpc.BeanSerializer.java

public static BeanData analyzeBean(Class clazz) throws IntrospectionException {
    //      log.info("analyzing " + clazz.getName());
    BeanData bd = new BeanData();
    bd.beanInfo = Introspector.getBeanInfo(clazz, Object.class);
    PropertyDescriptor props[] = bd.beanInfo.getPropertyDescriptors();
    bd.readableProps = new HashMap();
    bd.writableProps = new HashMap();
    for (int i = 0; i < props.length; i++) {
        if (props[i].getWriteMethod() != null) {
            bd.writableProps.put(props[i].getName(), props[i].getWriteMethod());
        }//from  ww  w  .j a  va 2  s  .  c  o m
        if (props[i].getReadMethod() != null) {
            bd.readableProps.put(props[i].getName(), props[i].getReadMethod());
        }
    }
    return bd;
}

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From source file:BeanPropertyTableModel.java

public void refresh() throws RuntimeException {
    final Vector<Object> columnNames = new Vector<Object>();
    columnNames.add(_nameColumnName);//from   www.j  a  v  a 2  s . c  o  m
    columnNames.add(_valueColumnName);
    final Vector<Object> columnData = new Vector<Object>();
    if (_bean != null) {
        try {
            BeanInfo info = Introspector.getBeanInfo(_bean.getClass(), Introspector.USE_ALL_BEANINFO);
            processBeanInfo(info, columnData);
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        }
    }

    // Sort the rows by the property name.
    Collections.sort(columnData, new DataSorter());

    setDataVector(columnData, columnNames);
}

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From source file:org.apache.axis.utils.BeanUtils.java

private static PropertyDescriptor[] getPropertyDescriptors(final Class secJavaType) {
    return (PropertyDescriptor[]) AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            PropertyDescriptor[] result = null;
            // START FIX http://nagoya.apache.org/bugzilla/showattachment.cgi?attach_id=4937
            try {
                // privileged code goes here
                if (AxisFault.class.isAssignableFrom(secJavaType)) {
                    // Don't include AxisFault data
                    result = Introspector.getBeanInfo(secJavaType, AxisFault.class).getPropertyDescriptors();
                } else if (Throwable.class != secJavaType && Throwable.class.isAssignableFrom(secJavaType)) {
                    // Don't include Throwable data
                    result = Introspector.getBeanInfo(secJavaType, Throwable.class).getPropertyDescriptors();
                } else {
                    // privileged code goes here
                    result = Introspector.getBeanInfo(secJavaType).getPropertyDescriptors();
                }//w  ww.ja  v  a  2s  .  c om
                // END FIX http://nagoya.apache.org/bugzilla/showattachment.cgi?attach_id=4937
            } catch (java.beans.IntrospectionException Iie) {
            }
            return result;
        }
    });
}

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From source file:com.gisgraphy.helper.BeanHelper.java

public boolean equals(final Object other, final Object current) {
    if (!current.getClass().isAssignableFrom(other.getClass())) {
        return false;
    }/*from ww  w  . j ava2s  .c  o  m*/
    final String thisName = current.getClass().getSimpleName();
    final String objectName = other.getClass().getSimpleName();
    String propertyName;
    Exception exception;
    try {
        for (final PropertyDescriptor thisPropertyDescriptor : Introspector
                .getBeanInfo(current.getClass(), Object.class).getPropertyDescriptors()) {
            exception = null;
            propertyName = thisPropertyDescriptor.getName();
            logger.debug("propertyName=" + propertyName);
            try {
                if (!compareProperty(current, other, propertyName)) {
                    return false;
                }
            } catch (final IllegalAccessException e) {
                exception = e;
            } catch (final InvocationTargetException e) {
                exception = e;
            } catch (final NoSuchMethodException e) {
                exception = e;
            }
            if (exception != null) {
                logger.debug("impossible to compare property " + propertyName + " for beans " + thisName
                        + " and " + objectName, exception);
                continue;
            }
        }
    } catch (final IntrospectionException e) {
        logger.debug("impossible to get properties for bean " + thisName, e);
    }
    return true;
}

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