// Copyright (c) 2003-2014, Jodd Team (jodd.org). All Rights Reserved.
package jodd.bean;
import jodd.JoddBean;
import jodd.introspector.Getter;
import jodd.introspector.Setter;
import jodd.util.ReflectUtil;
import jodd.util.StringUtil;
import java.lang.reflect.Array;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Instantiable version of {@link BeanUtil}.
*/
public class BeanUtilBean extends BeanUtilUtil {
// ---------------------------------------------------------------- internal resolver
/**
* Resolves nested property name to the very last indexed property.
* If forced, <code>null</code> or non-existing properties will be created.
*/
protected void resolveNestedProperties(BeanProperty bp) {
String name = bp.name;
int dotNdx;
while ((dotNdx = indexOfDot(name)) != -1) {
bp.last = false;
bp.setName(name.substring(0, dotNdx));
bp.setBean(getIndexProperty(bp, true));
name = name.substring(dotNdx + 1);
}
bp.last = true;
bp.setName(name);
}
protected boolean resolveExistingNestedProperties(BeanProperty bp) {
String name = bp.name;
int dotNdx;
while ((dotNdx = indexOfDot(name)) != -1) {
bp.last = false;
bp.setName(name.substring(0, dotNdx));
String temp = bp.name;
if (hasIndexProperty(bp, true) == false) {
return false;
}
bp.setName(temp);
bp.setBean(getIndexProperty(bp, true));
name = name.substring(dotNdx + 1);
}
bp.last = true;
bp.setName(name);
return true;
}
// ---------------------------------------------------------------- simple property
/**
* Returns <code>true</code> if simple property exist.
*/
public boolean hasSimpleProperty(Object bean, String property, boolean declared) {
return hasSimpleProperty(new BeanProperty(bean, property, false), declared);
}
protected boolean hasSimpleProperty(BeanProperty bp, boolean declared) {
if (bp.bean == null) {
return false;
}
// try: getter
Getter getter = bp.getGetter(declared);
if (getter != null) {
return true;
}
// try: (Map) get("property")
if (bp.isMap()) {
Map map = (Map) bp.bean;
if (map.containsKey(bp.name) == true) {
return true;
}
}
return false;
}
/**
* Reads simple property.
*/
public Object getSimpleProperty(Object bean, String property, boolean declared) {
return getSimpleProperty(new BeanProperty(bean, property, false), declared);
}
/**
* Reads simple property forced: when property value doesn't exist, it will be created.
*/
public Object getSimplePropertyForced(Object bean, String property, boolean declared) {
return getSimpleProperty(new BeanProperty(bean, property, true), declared);
}
protected Object getSimpleProperty(BeanProperty bp, boolean declared) {
if ((bp.name.length() == 0 && bp.first) || bp.name.equals(JoddBean.thisRef)) {
return bp.bean;
}
Getter getter = bp.getGetter(declared);
if (getter != null) {
Object result;
try {
result = getter.invokeGetter(bp.bean);
} catch (Exception ex) {
throw new BeanException("Getter failed: " + getter, ex);
}
if ((result == null) && (bp.forced == true)) {
result = createBeanProperty(bp);
}
return result;
}
// try: (Map) get("property")
if (bp.isMap()) {
Map map = (Map) bp.bean;
Object key = convertIndexToMapKey(getter, bp.name);
if (map.containsKey(key) == false) {
if (bp.forced == false) {
throw new BeanException("Map key not found: " + bp.name, bp);
}
Map value = new HashMap();
//noinspection unchecked
map.put(key, value);
return value;
}
return map.get(key);
}
// failed
throw new BeanException("Simple property not found: " + bp.name, bp);
}
/**
* Sets simple property.
*/
public void setSimpleProperty(Object bean, String property, Object value, boolean declared) {
setSimpleProperty(new BeanProperty(bean, property, false), value, declared);
}
/**
* Sets a value of simple property.
*/
@SuppressWarnings({"unchecked"})
protected void setSimpleProperty(BeanProperty bp, Object value, boolean declared) {
Setter setter = bp.getSetter(declared);
// try: setter
if (setter != null) {
invokeSetter(setter, bp.bean, value);
return;
}
// try: put("property", value)
if (bp.isMap()) {
((Map) bp.bean).put(bp.name, value);
return;
}
throw new BeanException("Simple property not found: " + bp.name, bp);
}
// ---------------------------------------------------------------- indexed property
/**
* Returns <code>true</code> if bean has indexed property.
*/
public boolean hasIndexProperty(Object bean, String property, boolean declared) {
return hasIndexProperty(new BeanProperty(bean, property, false), declared);
}
protected boolean hasIndexProperty(BeanProperty bp, boolean declared) {
if (bp.bean == null) {
return false;
}
String indexString = extractIndex(bp);
if (indexString == null) {
return hasSimpleProperty(bp, declared);
}
Object resultBean = getSimpleProperty(bp, declared);
if (resultBean == null) {
return false;
}
// try: property[index]
if (resultBean.getClass().isArray() == true) {
int index = parseInt(indexString, bp);
return (index >= 0) && (index < Array.getLength(resultBean));
}
// try: list.get(index)
if (resultBean instanceof List) {
int index = parseInt(indexString, bp);
return (index >= 0) && (index < ((List)resultBean).size());
}
if (resultBean instanceof Map) {
return ((Map)resultBean).containsKey(indexString);
}
// failed
return false;
}
public Object getIndexProperty(Object bean, String property, boolean declared, boolean forced) {
return getIndexProperty(new BeanProperty(bean, property, forced), declared);
}
/**
* Get non-nested property value: either simple or indexed property.
* If forced, missing bean will be created if possible.
*/
protected Object getIndexProperty(BeanProperty bp, boolean declared) {
String indexString = extractIndex(bp);
Object resultBean = getSimpleProperty(bp, declared);
Getter getter = bp.getGetter(declared);
if (indexString == null) {
return resultBean; // no index, just simple bean
}
if (resultBean == null) {
throw new BeanException("Index property is null: " + bp.name, bp);
}
// try: property[index]
if (resultBean.getClass().isArray() == true) {
int index = parseInt(indexString, bp);
if (bp.forced == true) {
return arrayForcedGet(bp, resultBean, index);
} else {
return Array.get(resultBean, index);
}
}
// try: list.get(index)
if (resultBean instanceof List) {
int index = parseInt(indexString, bp);
List list = (List) resultBean;
if (bp.forced == false) {
return list.get(index);
}
if (bp.last == false) {
ensureListSize(list, index);
}
Object value = list.get(index);
if (value == null) {
Class listComponentType = extractGenericComponentType(getter);
if (listComponentType == Object.class) {
// not an error: when component type is unknown, use Map as generic bean
listComponentType = Map.class;
}
try {
value = ReflectUtil.newInstance(listComponentType);
} catch (Exception ex) {
throw new BeanException("Invalid list element: " + bp.name + '[' + index + ']', bp, ex);
}
//noinspection unchecked
list.set(index, value);
}
return value;
}
// try: map.get('index')
if (resultBean instanceof Map) {
Map map = (Map) resultBean;
Object key = convertIndexToMapKey(getter, indexString);
if (bp.forced == false) {
return map.get(key);
}
Object value = map.get(key);
if (bp.last == false) {
if (value == null) {
Class mapComponentType = extractGenericComponentType(getter);
if (mapComponentType == Object.class) {
mapComponentType = Map.class;
}
try {
value = ReflectUtil.newInstance(mapComponentType);
} catch (Exception ex) {
throw new BeanException("Invalid map element: " + bp.name + '[' + indexString + ']', bp, ex);
}
//noinspection unchecked
map.put(key, value);
}
}
return value;
}
// failed
throw new BeanException("Index property is not an array, list or map: " + bp.name, bp);
}
public void setIndexProperty(Object bean, String property, Object value, boolean declared, boolean forced) {
setIndexProperty(new BeanProperty(bean, property, forced), value, declared);
}
/**
* Sets indexed or regular properties (no nested!).
*/
@SuppressWarnings({"unchecked"})
protected void setIndexProperty(BeanProperty bp, Object value, boolean declared) {
String indexString = extractIndex(bp);
if (indexString == null) {
setSimpleProperty(bp, value, declared);
return;
}
// try: getInner()
Object nextBean = getSimpleProperty(bp, declared);
Getter getter = bp.getGetter(declared);
if (nextBean == null) {
throw new BeanException("Index property is null:" + bp.name, bp);
}
// inner bean found
if (nextBean.getClass().isArray() == true) {
int index = parseInt(indexString, bp);
if (bp.forced == true) {
arrayForcedSet(bp, nextBean, index, value);
} else {
Array.set(nextBean, index, value);
}
return;
}
if (nextBean instanceof List) {
int index = parseInt(indexString, bp);
Class listComponentType = extractGenericComponentType(getter);
if (listComponentType != Object.class) {
value = convertType(value, listComponentType);
}
List list = (List) nextBean;
if (bp.forced == true) {
ensureListSize(list, index);
}
list.set(index, value);
return;
}
if (nextBean instanceof Map) {
Map map = (Map) nextBean;
Object key = convertIndexToMapKey(getter, indexString);
Class mapComponentType = extractGenericComponentType(getter);
if (mapComponentType != Object.class) {
value = convertType(value, mapComponentType);
}
map.put(key, value);
return;
}
// failed
throw new BeanException("Index property is not an array, list or map: " + bp.name, bp);
}
// ---------------------------------------------------------------- SET
/**
* Sets Java Bean property.
*/
public void setProperty(Object bean, String name, Object value) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
resolveNestedProperties(beanProperty);
setIndexProperty(beanProperty, value, false);
}
/**
* Sets Java Bean property silently, without throwing an exception on non-existing properties.
*/
public boolean setPropertySilent(Object bean, String name, Object value) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
try {
resolveNestedProperties(beanProperty);
setIndexProperty(beanProperty, value, false);
return true;
} catch (Exception ignored) {
return false;
}
}
/**
* Sets Java Bean property forced.
*/
public void setPropertyForced(Object bean, String name, Object value) {
BeanProperty beanProperty = new BeanProperty(bean, name, true);
resolveNestedProperties(beanProperty);
setIndexProperty(beanProperty, value, false);
}
/**
* Sets Java Bean property forced, without throwing an exception on non-existing properties.
*/
public boolean setPropertyForcedSilent(Object bean, String name, Object value) {
BeanProperty beanProperty = new BeanProperty(bean, name, true);
try {
resolveNestedProperties(beanProperty);
setIndexProperty(beanProperty, value, false);
return true;
} catch (Exception ignored) {
return false;
}
}
/**
* Sets declared Java Bean property.
*/
public void setDeclaredProperty(Object bean, String name, Object value) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
resolveNestedProperties(beanProperty);
setIndexProperty(beanProperty, value, true);
}
/**
* Silently sets declared Java Bean property.
*/
public boolean setDeclaredPropertySilent(Object bean, String name, Object value) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
try {
resolveNestedProperties(beanProperty);
setIndexProperty(beanProperty, value, true);
return true;
} catch (Exception ignored) {
return false;
}
}
/**
* Sets declared Java Bean property forced.
*/
public void setDeclaredPropertyForced(Object bean, String name, Object value) {
BeanProperty beanProperty = new BeanProperty(bean, name, true);
resolveNestedProperties(beanProperty);
setIndexProperty(beanProperty, value, true);
}
/**
* Silently sets declared Java Bean property forced.
*/
public boolean setDeclaredPropertyForcedSilent(Object bean, String name, Object value) {
BeanProperty beanProperty = new BeanProperty(bean, name, true);
try {
resolveNestedProperties(beanProperty);
setIndexProperty(beanProperty, value, true);
return true;
} catch (Exception ignored) {
return false;
}
}
// ---------------------------------------------------------------- GET
/**
* Returns value of bean's property.
*/
public Object getProperty(Object bean, String name) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
resolveNestedProperties(beanProperty);
return getIndexProperty(beanProperty, false);
}
/**
* Silently returns value of bean's property.
* Return value <code>null</code> is ambiguous: it may means that property name
* is valid and property value is <code>null</code> or that property name is invalid.
*/
public Object getPropertySilently(Object bean, String name) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
try {
resolveNestedProperties(beanProperty);
return getIndexProperty(beanProperty, false);
} catch (Exception ignored) {
return null;
}
}
/**
* Returns value of declared bean's property.
*/
public Object getDeclaredProperty(Object bean, String name) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
resolveNestedProperties(beanProperty);
return getIndexProperty(beanProperty, true);
}
/**
* Silently returns value of declared bean's property.
* Return value <code>null</code> is ambiguous: it may means that property name
* is valid and property value is <code>null</code> or that property name is invalid.
*/
public Object getDeclaredPropertySilently(Object bean, String name) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
try {
resolveNestedProperties(beanProperty);
return getIndexProperty(beanProperty, true);
} catch (Exception ignored) {
return null;
}
}
// ---------------------------------------------------------------- HAS
/**
* Returns <code>true</code> if bean has a property.
*/
public boolean hasProperty(Object bean, String name) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
if (resolveExistingNestedProperties(beanProperty) == false) {
return false;
}
return hasIndexProperty(beanProperty, false);
}
/**
* Returns <code>true</code> if bean has only a root property.
* If yes, this means that property may be injected into the bean.
* If not, bean does not contain the property.
*/
public boolean hasRootProperty(Object bean, String name) {
int dotNdx = indexOfDot(name);
if (dotNdx != -1) {
name = name.substring(0, dotNdx);
}
BeanProperty beanProperty = new BeanProperty(bean, name, false);
extractIndex(beanProperty);
return hasSimpleProperty(beanProperty, false);
}
/**
* Returns <code>true</code> if bean has a declared property.
*/
public boolean hasDeclaredProperty(Object bean, String name) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
if (resolveExistingNestedProperties(beanProperty) == false) {
return false;
}
return hasIndexProperty(beanProperty, true);
}
/**
* Returns <code>true</code> if bean has only a declared root property.
* If yes, this means that property may be injected into the bean.
* If not, bean does not contain the property.
*/
public boolean hasDeclaredRootProperty(Object bean, String name) {
int dotNdx = indexOfDot(name);
if (dotNdx != -1) {
name = name.substring(0, dotNdx);
}
BeanProperty beanProperty = new BeanProperty(bean, name, false);
extractIndex(beanProperty);
return hasSimpleProperty(beanProperty, true);
}
// ---------------------------------------------------------------- type
/**
* Returns property type.
*/
public Class getPropertyType(Object bean, String name) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
if (resolveExistingNestedProperties(beanProperty) == false) {
return null;
}
hasIndexProperty(beanProperty, false);
return extractType(beanProperty, false);
}
/**
* Returns property type of declared property.
*/
public Class getDeclaredPropertyType(Object bean, String name) {
BeanProperty beanProperty = new BeanProperty(bean, name, false);
if (resolveExistingNestedProperties(beanProperty) == false) {
return null;
}
hasIndexProperty(beanProperty, true);
return extractType(beanProperty, true);
}
// ---------------------------------------------------------------- populate
/**
* Populates bean from a <code>Map</code>.
*/
public void populateBean(Object bean, Map<?, ?> map) {
populateProperty(bean, null, map);
}
/**
* Populates <b>simple</b> bean property from a <code>Map</code>.
*/
public void populateProperty(Object bean, String name, Map<?, ?> map) {
if (name != null) {
if (map == null) {
setSimpleProperty(bean, name, null, false);
return;
}
bean = getSimplePropertyForced(bean, name, true);
}
for (Map.Entry<?, ?> entry : map.entrySet()) {
String key = entry.getKey().toString();
Object value = entry.getValue();
if (value != null) {
if (value instanceof Map) {
populateProperty(bean, key, (Map) value);
continue;
}
if (value instanceof List) {
populateProperty(bean, key, (List) value);
continue;
}
}
setSimpleProperty(bean, key, value, true);
}
}
/**
* Populates <b>indexed</b> bean property from a <code>List</code>.
*/
public void populateProperty(Object bean, String name, List<?> list) {
if (list == null) {
setSimpleProperty(bean, name, null, false);
return;
}
name += '[';
int index = 0;
for (Object item : list) {
setIndexProperty(bean, name + index + ']', item, true, true);
index++;
}
}
// ---------------------------------------------------------------- utilities
private static final char[] INDEX_CHARS = new char[] {'.', '['};
/**
* Extract the first name of this reference.
*/
public String extractThisReference(String propertyName) {
int ndx = StringUtil.indexOfChars(propertyName, INDEX_CHARS);
if (ndx == -1) {
return propertyName;
}
return propertyName.substring(0, ndx);
}
}