jodd.bean.BeanCopy Maven / Gradle / Ivy
// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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package jodd.bean;
import java.util.Map;
import java.util.function.BiPredicate;
import java.util.function.Predicate;
import static jodd.util.StringPool.LEFT_SQ_BRACKET;
import static jodd.util.StringPool.RIGHT_SQ_BRACKET;
/**
* Powerful tool for copying properties from one bean into another.
* BeanCopy works with POJO beans, but also with Map.
*
* @see BeanVisitor
*/
public class BeanCopy {
private final Object source;
private Object destination;
private boolean forced;
private boolean declared;
private boolean isTargetMap;
private Predicate filter;
private BiPredicate filter2;
private boolean includeFields;
// ---------------------------------------------------------------- ctor
/**
* Creates new BeanCopy process between the source and the destination.
* Both source and destination can be a POJO object or a Map.
*/
public BeanCopy(final Object source, final Object destination) {
this.source = source;
this.destination = destination;
this.isTargetMap = destination instanceof Map;
}
private BeanCopy(final Object source) {
this.source = source;
}
/**
* Creates BeanCopy with given POJO bean as a source.
*/
public static BeanCopy from(final Object source) {
return new BeanCopy(source);
}
/**
* Defines destination, detects a map.
*/
public BeanCopy to(final Object destination) {
this.destination = destination;
this.isTargetMap = destination instanceof Map;
return this;
}
// ---------------------------------------------------------------- properties
/**
* Defines if all properties should be copied (when set to true)
* or only public (when set to false, default).
*/
public BeanCopy declared(final boolean declared) {
this.declared = declared;
return this;
}
public BeanCopy forced(final boolean forced) {
this.forced = forced;
return this;
}
public BeanCopy filter(final Predicate filter) {
this.filter = filter;
return this;
}
public BeanCopy filter(final BiPredicate filter) {
this.filter2 = filter;
return this;
}
public BeanCopy includeFields(final boolean includeFields) {
this.includeFields = includeFields;
return this;
}
// ---------------------------------------------------------------- visitor
/**
* Performs the copying.
*/
public void copy() {
final BeanUtil beanUtil = new BeanUtilBean()
.declared(declared)
.forced(forced)
.silent(true);
new BeanVisitor(source)
.declared(declared)
.includeFields(includeFields)
.visit((name, value) -> {
if (isTargetMap) {
name = LEFT_SQ_BRACKET + name + RIGHT_SQ_BRACKET;
}
if (filter != null) {
if (!filter.test(name)) {
return;
}
}
if (filter2 != null) {
if (!filter2.test(name, value)) {
return;
}
}
beanUtil.setProperty(destination, name, value);
});
}
}