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A general programming library in Java/Android. It's easy to learn and simple to use with concise and powerful APIs.
/*
* Copyright (c) 2015, Haiyang Li.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.landawn.abacus.util;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TreeMap;
import com.landawn.abacus.annotation.Immutable;
import com.landawn.abacus.annotation.Internal;
import com.landawn.abacus.parser.ParserUtil;
import com.landawn.abacus.parser.ParserUtil.BeanInfo;
/**
*
* @author Haiyang Li
* @since 0.8
*/
public class Seid implements EntityId {
private static final Comparator keyComparator = Comparators.NATURAL_ORDER;
private final String entityName;
private Map values = Collections.emptyMap();
private String strValue;
// for Kryo.
protected Seid() {
entityName = Strings.EMPTY_STRING;
}
/**
*
*
* @param entityName
* @deprecated
*/
@Deprecated
@Internal
public Seid(String entityName) {
// if (N.isEmpty(entityName)) {
// throw new IllegalArgumentException("Entity name can't be null or empty");
// }
this.entityName = entityName == null ? Strings.EMPTY_STRING : entityName;
}
/**
*
*
* @param propName
* @param propValue
*/
public Seid(String propName, Object propValue) {
this(NameUtil.getParentName(propName));
set(propName, propValue); // NOSONAR
}
/**
*
*
* @param nameValues
*/
public Seid(Map nameValues) {
this(NameUtil.getParentName(nameValues.keySet().iterator().next()));
set(nameValues); // NOSONAR
}
/**
*
* @param entityName
* @return
* @deprecated for internal use only
*/
@Deprecated
@Internal
public static Seid of(String entityName) {
return new Seid(entityName);
}
/**
*
* @param propName
* @param propValue
* @return
*/
public static Seid of(String propName, Object propValue) {
return new Seid(propName, propValue);
}
/**
*
* @param propName1
* @param propValue1
* @param propName2
* @param propValue2
* @return
*/
public static Seid of(String propName1, Object propValue1, String propName2, Object propValue2) {
final Seid result = new Seid(propName1, propValue1);
result.set(propName2, propValue2);
return result;
}
/**
*
* @param propName1
* @param propValue1
* @param propName2
* @param propValue2
* @param propName3
* @param propValue3
* @return
*/
public static Seid of(String propName1, Object propValue1, String propName2, Object propValue2, String propName3, Object propValue3) {
final Seid result = new Seid(propName1, propValue1);
result.set(propName2, propValue2);
result.set(propName3, propValue3);
return result;
}
/**
*
* @param nameValues
* @return
*/
public static Seid create(Map nameValues) {
return new Seid(nameValues);
}
/**
*
* @param entity
* @return
*/
public static Seid create(Object entity) {
final List idPropNames = Seid.getIdFieldNames(entity.getClass());
if (N.isEmpty(idPropNames)) {
throw new IllegalArgumentException("No id property defined in class: " + ClassUtil.getCanonicalClassName(entity.getClass()));
}
return create(entity, idPropNames);
}
/**
*
* @param entity
* @param idPropNames
* @return
*/
public static Seid create(Object entity, Collection idPropNames) {
if (N.isEmpty(idPropNames)) {
throw new IllegalArgumentException("Id property names can't be null or empty");
}
final Class cls = entity.getClass();
final BeanInfo entityInfo = ParserUtil.getBeanInfo(cls);
final Seid seid = Seid.of(ClassUtil.getSimpleClassName(cls));
for (String idPropName : idPropNames) {
seid.set(idPropName, entityInfo.getPropInfo(idPropName).getPropValue(entity));
}
return seid;
}
/**
*
*
* @return
*/
@Override
public String entityName() {
return entityName;
}
/**
*
* @param
* @param propName
* @return
*/
@Override
@SuppressWarnings("unchecked")
public T get(String propName) {
if (NameUtil.isCanonicalName(entityName, propName)) {
return (T) values.get(NameUtil.getSimpleName(propName));
}
return (T) values.get(propName);
}
/**
*
*
* @param propName
* @return
*/
@Override
public int getInt(String propName) {
final Object value = get(propName);
return value instanceof Number ? ((Number) value).intValue() : N.convert(value, int.class);
}
/**
*
*
* @param propName
* @return
*/
@Override
public long getLong(String propName) {
final Object value = get(propName);
return value instanceof Number ? ((Number) value).longValue() : N.convert(value, long.class);
}
/**
*
*
* @param
* @param propName
* @param targetType
* @return
*/
@Override
@SuppressWarnings("unchecked")
public T get(String propName, Class targetType) {
Object propValue = get(propName);
if (propValue == null) {
propValue = N.defaultValueOf(targetType);
}
return N.convert(propValue, targetType);
}
/**
*
* @param propName
* @param propValue
* @return
* @deprecated for internal use only
*/
@Deprecated
@Internal
public Seid set(String propName, Object propValue) {
final String simplePropName = NameUtil.isCanonicalName(entityName, propName) ? NameUtil.getSimpleName(propName) : propName;
if (values.isEmpty() || (values.size() == 1 && values.containsKey(simplePropName))) {
values = Collections.singletonMap(simplePropName, propValue);
} else {
final Map newVlaues = new TreeMap<>(keyComparator);
newVlaues.putAll(this.values);
this.values = newVlaues;
values.put(simplePropName, propValue);
}
strValue = null;
return this;
}
/**
*
* @param nameValues
* @deprecated for internal use only
*/
@Deprecated
@Internal
public void set(Map nameValues) {
if (N.isEmpty(nameValues)) {
return;
}
if (nameValues.size() == 1) {
final Map.Entry entry = nameValues.entrySet().iterator().next();
set(entry.getKey(), entry.getValue());
} else {
if (!(values instanceof TreeMap)) {
final Map newVlaues = new TreeMap<>(keyComparator);
newVlaues.putAll(this.values);
this.values = newVlaues;
}
for (Map.Entry entry : nameValues.entrySet()) {
if (NameUtil.isCanonicalName(entityName, entry.getKey())) {
values.put(NameUtil.getSimpleName(entry.getKey()), entry.getValue());
} else {
values.put(entry.getKey(), entry.getValue());
}
}
}
strValue = null;
}
// /**
// *
// * @param propName
// * @return
// * @deprecated for internal use only
// */
// @Deprecated
// @Internal
// public Object remove(String propName) {
// if (values.size() == 0) {
// return null;
// }
//
// final String simplePropName = NameUtil.isCanonicalName(entityName, propName) ? NameUtil.getSimpleName(propName) : propName;
// Object result = null;
//
// if (values.size() == 1) {
// if (values.containsKey(simplePropName)) {
// result = values.values().iterator().next();
// values = Collections.emptyMap();
// }
// } else {
// result = values.remove(simplePropName);
// }
//
// strValue = null;
//
// return result;
// }
//
// /**
// * Removes the all.
// *
// * @param propNames
// * @deprecated for internal use only
// */
// @Deprecated
// @Internal
// public void removeAll(Collection propNames) {
// for (String propName : propNames) {
// remove(propName);
// }
//
// strValue = null;
// }
/**
*
* @param propName
* @return true, if successful
*/
@Override
public boolean containsKey(String propName) {
if (values.size() == 0) {
return false;
}
if (NameUtil.isCanonicalName(entityName, propName)) {
return values.containsKey(NameUtil.getSimpleName(propName));
}
return values.containsKey(propName);
}
/**
*
*
* @return
*/
@Override
public Set keySet() {
return values.keySet();
}
/**
*
*
* @return
*/
@Override
public Set> entrySet() {
return values.entrySet();
}
/**
*
*
* @return
*/
@Override
public int size() {
return values.size();
}
/**
* Checks if is empty.
*
* @return true, if is empty
*/
@Override
public boolean isEmpty() {
return values.size() == 0;
}
/**
* Clear.
* @deprecated for internal use only
*/
@Deprecated
@Internal
public void clear() {
values = Collections.emptyMap();
strValue = null;
}
/**
*
* @return
* @deprecated for internal use only
*/
@Deprecated
@Internal
public Seid copy() {
final Seid copy = new Seid(entityName);
copy.set(this.values);
copy.strValue = strValue;
return copy;
}
/**
*
* @param obj
* @return true, if successful
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
return (obj instanceof EntityId) ? toString().equals(obj.toString()) : false;
}
/**
*
*
* @return
*/
@Override
public int hashCode() {
return toString().hashCode();
}
/**
*
*
* @return
*/
@Override
public String toString() {
return stringValue();
}
private String stringValue() {
if (strValue == null) {
final Set> entrySet = values.entrySet();
switch (values.size()) {
case 0: {
strValue = entityName + ": {}";
break;
}
case 1: {
Map.Entry entry = entrySet.iterator().next();
String propName = NameUtil.isCanonicalName(entityName, entry.getKey()) ? NameUtil.getSimpleName(entry.getKey()) : entry.getKey();
strValue = entityName + ": {" + propName + "=" + N.stringOf(entry.getValue()) + "}";
break;
}
case 2: {
Iterator> it = entrySet.iterator();
Map.Entry entry1 = it.next();
String propName1 = NameUtil.isCanonicalName(entityName, entry1.getKey()) ? NameUtil.getSimpleName(entry1.getKey()) : entry1.getKey();
Map.Entry entry2 = it.next();
String propName2 = NameUtil.isCanonicalName(entityName, entry2.getKey()) ? NameUtil.getSimpleName(entry2.getKey()) : entry2.getKey();
strValue = entityName + ": {" + propName1 + "=" + N.stringOf(entry1.getValue()) + Strings.ELEMENT_SEPARATOR + propName2 + "="
+ N.stringOf(entry2.getValue()) + "}";
break;
}
default: {
List keys = new ArrayList<>(values.keySet());
N.sort(keys);
final StringBuilder sb = Objectory.createStringBuilder();
sb.append(entityName);
sb.append(": {");
int i = 0;
for (Map.Entry entry : entrySet) {
if (i++ > 0) {
sb.append(Strings.ELEMENT_SEPARATOR_CHAR_ARRAY);
}
String propName = NameUtil.isCanonicalName(entityName, entry.getKey()) ? NameUtil.getSimpleName(entry.getKey()) : entry.getKey();
sb.append(propName);
sb.append('=');
sb.append(N.stringOf(entry.getValue()));
}
sb.append('}');
strValue = sb.toString();
Objectory.recycle(sb);
}
}
}
return strValue;
}
/**
* Gets the id field names.
*
* @param targetClass
* @return an immutable List.
* @deprecated for internal only.
*/
@Deprecated
@Internal
@Immutable
static List getIdFieldNames(final Class targetClass) {
final ImmutableList idPropNames = ParserUtil.getBeanInfo(targetClass).idPropNameList;
return N.isEmpty(idPropNames) ? N.emptyList() : idPropNames;
}
}