Example usage for java.lang.reflect Field getType

Introduction

In this page you can find the example usage for java.lang.reflect Field getType.

Prototype

public Class<?> getType() 

Source Link

Document

Returns a Class object that identifies the declared type for the field represented by this Field object.

Usage

From source file:com.antsdb.saltedfish.sql.ExternalTable.java

public static <T> ExternalTable wrap(Orca orca, String namespace, Class<T> klass, Iterable<T> iterable) {
    ClassBasedTable<T> table = new ClassBasedTable<>();
    table.source = iterable;/*w w  w  .j a  v a 2 s .c  o m*/
    table.meta.setNamespace(namespace).setTableName(iterable.getClass().getSimpleName());
    List<ColumnMeta> columns = new ArrayList<>();
    for (Field i : klass.getFields()) {
        ColumnMeta column = new ColumnMeta(orca.getTypeFactory(), new SlowRow(0));
        column.setColumnName(i.getName()).setId(table.meta.getColumns().size());
        if (i.getType() == String.class) {
            column.setType(DataType.varchar());
        } else if (i.getType() == int.class) {
            column.setType(DataType.integer());
        } else if (i.getType() == long.class) {
            column.setType(DataType.longtype());
        } else {
            throw new NotImplementedException();
        }
        columns.add(column);
        table.fields.add(i);
    }
    table.meta.setColumns(columns);
    return table;
}

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From source file:gr.abiss.calipso.tiers.specifications.GenericSpecifications.java

/**
 * Get an appropriate predicate factory for the given field class
 * @param field/*from  ww w  .  j  a  v a2s. c o  m*/
 * @return
 */
private static IPredicateFactory<?> getPredicateFactoryForClass(Field field) {
    Class clazz = field.getType();
    if (clazz.isEnum()) {
        return new EnumStringPredicateFactory(clazz);
    } else if (Persistable.class.isAssignableFrom(clazz)) {
        if (field.isAnnotationPresent(CurrentPrincipal.class)) {
            return currentPrincipalPredicateFactory;
        } else {
            return anyToOnePredicateFactory;
        }
    } else {
        return factoryForClassMap.get(clazz);
    }
}

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From source file:com.antsdb.saltedfish.util.CursorUtil.java

public static CursorMeta toMeta(Class<?> klass) {
    CursorMeta meta = new CursorMeta();
    for (Field i : klass.getFields()) {
        FieldMeta column = new FieldMeta();
        column.setName(i.getName());/*  w  ww.  j  a v a 2s . c o m*/
        if (i.getType() == String.class) {
            column.setType(DataType.varchar());
        } else if (i.getType() == int.class) {
            column.setType(DataType.integer());
        } else if (i.getType() == Integer.class) {
            column.setType(DataType.integer());
        } else if (i.getType() == long.class) {
            column.setType(DataType.longtype());
        } else if (i.getType() == Long.class) {
            column.setType(DataType.longtype());
        } else if (i.getType() == Timestamp.class) {
            column.setType(DataType.timestamp());
        } else if (i.getType() == byte[].class) {
            column.setType(DataType.blob());
        } else {
            throw new NotImplementedException();
        }
        meta.addColumn(column);
    }
    return meta;
}

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From source file:com.hortonworks.registries.common.util.ReflectionHelper.java

/**
 * Given a class, this method returns a map of names of all the instance (non static) fields to type.
 * if the class has any super class it also includes those fields.
 * @param clazz , not null/*from   w w  w.  j av a 2s . co m*/
 * @return
 */
public static Map<String, Class> getFieldNamesToTypes(Class clazz) {
    Field[] declaredFields = clazz.getDeclaredFields();
    Map<String, Class> instanceVariableNamesToTypes = new HashMap<>();
    for (Field field : declaredFields) {
        if (!Modifier.isStatic(field.getModifiers())) {
            LOG.trace("clazz {} has field {} with type {}", clazz.getName(), field.getName(),
                    field.getType().getName());
            instanceVariableNamesToTypes.put(field.getName(), field.getType());
        } else {
            LOG.trace("clazz {} has field {} with type {}, which is static so ignoring", clazz.getName(),
                    field.getName(), field.getType().getName());
        }
    }

    if (!clazz.getSuperclass().equals(Object.class)) {
        instanceVariableNamesToTypes.putAll(getFieldNamesToTypes(clazz.getSuperclass()));
    }
    return instanceVariableNamesToTypes;
}

---

From source file:utils.ReflectionService.java

public static JsonNode createJsonNode(Class clazz, int maxDeep) {

    if (maxDeep <= 0 || JsonNode.class.isAssignableFrom(clazz)) {
        return null;
    }//from   w  w  w  . ja  va  2 s  .c o m

    ObjectMapper objectMapper = new ObjectMapper();
    ObjectNode objectNode = objectMapper.createObjectNode();

    for (Field field : clazz.getDeclaredFields()) {
        field.setAccessible(true);
        String key = field.getName();
        try {
            // is array or collection
            if (field.getType().isArray() || Collection.class.isAssignableFrom(field.getType())) {
                ParameterizedType collectionType = (ParameterizedType) field.getGenericType();
                Class<?> type = (Class<?>) collectionType.getActualTypeArguments()[0];
                ArrayNode arrayNode = objectMapper.createArrayNode();
                arrayNode.add(createJsonNode(type, maxDeep - 1));
                objectNode.put(key, arrayNode);
            } else {
                Class<?> type = field.getType();
                if (Modifier.isStatic(field.getModifiers())) {
                    continue;
                } else if (type.isEnum()) {
                    objectNode.put(key, Enum.class.getName());
                } else if (!type.getName().startsWith("java") && !key.startsWith("_")) {
                    objectNode.put(key, createJsonNode(type, maxDeep - 1));
                } else {
                    objectNode.put(key, type.getName());
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return objectNode;
}

---

From source file:com.adobe.acs.commons.mcp.util.AnnotatedFieldDeserializer.java

private static void parseInputValue(Object target, String value, Field field)
        throws ReflectiveOperationException, ParseException {
    FieldUtils.writeField(field, target, convertValue(value, field.getType()), true);
}

---

From source file:Main.java

/**
 * Sets the given field's value of the specified object instance.
 * /*from  www .  j a  va  2 s . c om*/
 * @throws IllegalArgumentException if the value cannot be set.
 */
public static void setValue(final Field field, final Object instance, final Object value) {
    try {
        field.setAccessible(true);
        field.set(instance, convert(value, field.getType()));
    } catch (final IllegalAccessException e) {
        throw new IllegalArgumentException("No access to field: " + field.getName(), e);
    }
}

---

From source file:Main.java

private static ArrayList<ArrayList> sortObjectArrayListSimpleMaster(ArrayList listIn, String paramName) {
    ArrayList<ArrayList> answer = new ArrayList<ArrayList>();
    ArrayList newList = new ArrayList();
    ArrayList<Integer> indices = new ArrayList<Integer>();
    try {/*w w  w.  ja  v a  2 s .com*/
        if (listIn.size() > 0) {
            Class<?> c = listIn.get(0).getClass();
            Field f = c.getDeclaredField(paramName);
            f.setAccessible(true);
            Class<?> t = f.getType();
            Double dd = new Double(14);
            Float ff = new Float(14);
            Integer ii = new Integer(14);
            Map sortedPos = new LinkedHashMap();
            Map sortedNeg = new LinkedHashMap();
            Map unsorted = new LinkedHashMap();
            int indexCount = 0;
            long count = 0;
            if (t.isPrimitive()) {
                for (Object thisObj : listIn) {
                    Object o = f.get(thisObj);
                    double d = 0;
                    if (t.getName().equals("char")) {
                        d = (int) ((Character) o);
                    } else if (t.isInstance(dd))
                        d = (Double) o;
                    else if (t.isInstance(ff))
                        d = (Float) o;
                    else if (t.isInstance(ii))
                        d = (Integer) o;
                    else
                        d = new Double(o.toString());

                    boolean isNegative = false;

                    if (d < 0) {
                        isNegative = true;
                        d = Math.abs(d);
                    }

                    String format = "%1$30f";
                    String newKey = String.format(format, d);
                    String format2 = "%1$20d";
                    String countString = String.format(format2, count);
                    newKey += "-" + countString;
                    if (isNegative) {
                        sortedNeg.put(newKey, thisObj);
                    } else {
                        sortedPos.put(newKey, thisObj);
                    }
                    unsorted.put(thisObj, indexCount);
                    count++;
                    indexCount++;
                }
                TreeMap<String, Object> resultPos = new TreeMap();
                resultPos.putAll(sortedPos);
                sortedPos = resultPos;
                TreeMap<String, Object> resultNeg = new TreeMap();
                resultNeg.putAll(sortedNeg);
                sortedNeg = resultNeg;
            } else if (t.isInstance(paramName)) {
                // System.out.println("is a string with value " + o);
                for (Object thisObj : listIn) {
                    String key = (String) (f.get(thisObj));
                    sortedPos.put(key + "-" + count, thisObj);
                    unsorted.put(thisObj, indexCount);
                    count++;
                    indexCount++;
                }
                TreeMap<String, Object> result = new TreeMap(String.CASE_INSENSITIVE_ORDER);
                result.putAll(sortedPos);
                sortedPos = result;
            }

            Iterator itNeg = sortedNeg.entrySet().iterator();
            while (itNeg.hasNext()) {
                Map.Entry pairs = (Map.Entry) itNeg.next();
                newList.add(pairs.getValue());
                itNeg.remove();
            }

            Collections.reverse(newList);

            Iterator itPos = sortedPos.entrySet().iterator();
            while (itPos.hasNext()) {
                Map.Entry pairs = (Map.Entry) itPos.next();
                Object obj = pairs.getValue();
                newList.add(obj);
                indices.add((Integer) unsorted.get(obj));
                itPos.remove();
            }
        }
    } catch (Exception e) {
        System.out
                .println("problem sorting list.  listIn.size(): " + listIn.size() + " and param: " + paramName);
        answer.add(newList);
        answer.add(indices);
        return answer;
    }
    answer.add(newList);
    answer.add(indices);
    return answer;
}

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From source file:org.LexGrid.LexBIG.caCore.utils.LexEVSCaCoreUtils.java

public static <T> T recurseReflect(final T obj, final DoInReflectionCallback callback) {
    if (obj == null) {
        return null;
    }// w  ww. j a  va 2s .  co  m
    ReflectionUtils.doWithFields(obj.getClass(), new FieldCallback() {

        public void doWith(Field arg0) throws IllegalArgumentException, IllegalAccessException {

            if (!ClassUtils.isPrimitiveOrWrapper(arg0.getType()) && !ClassUtils.isPrimitiveArray(arg0.getType())
                    && !ClassUtils.isPrimitiveWrapperArray(arg0.getType()) && !arg0.getType().isEnum()
                    && (isLexBigClass(arg0.getType()) || Collection.class.isAssignableFrom(arg0.getType())
                            || Map.class.isAssignableFrom(arg0.getType()))) {

                arg0.setAccessible(true);
                Object recurse = arg0.get(obj);

                if (recurse != null) {

                    if (CycleDetectingCallback.class.isAssignableFrom(recurse.getClass())) {
                        System.out.println("ere");
                    }

                    if (Collection.class.isAssignableFrom(recurse.getClass())) {
                        Collection collection = (Collection) recurse;
                        for (Object o : collection) {
                            if (callback.actionRequired(o)) {
                                collection.remove(o);
                                collection.add(recurseReflect(o, callback));
                            } else {
                                recurseReflect(o, callback);
                            }
                        }
                    } else if (Map.class.isAssignableFrom(recurse.getClass())) {
                        Map map = (Map) recurse;
                        for (Object key : map.keySet()) {
                            Object value = map.get(key);
                            if (callback.actionRequired(key) || callback.actionRequired(value)) {
                                map.remove(key);
                                map.put(recurseReflect(key, callback), recurseReflect(value, callback));
                            } else {
                                recurseReflect(key, callback);
                                recurseReflect(value, callback);
                            }
                        }
                    } else {
                        if (callback.actionRequired(recurse)) {
                            Object newObject = recurseReflect(recurse, callback);
                            arg0.set(obj, newObject);
                        } else {
                            recurseReflect(recurse, callback);
                        }
                    }
                }
            }
        }
    });

    return callback.doInReflection(obj);
}

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From source file:com.robertsmieja.test.utils.junit.GettersAndSettersUtils.java

static Method getSetterForField(Field field) {
    return MethodUtils.getAccessibleMethod(field.getDeclaringClass(),
            accessorMethodNameForField(GettersAndSettersTests.SET_METHOD_PREFIX, field), field.getType());
}

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