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BeanPropertyWriterDelegate.java
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BeanPropertyWriterDelegate.java
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/**
* Copyright (C) 2015 Red Hat, Inc.
*
* 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 io.fabric8.kubernetes.model.jackson;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
import com.fasterxml.jackson.databind.ser.BeanPropertyWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Map;
import java.util.function.Supplier;
/**
* Variant of {@link BeanPropertyWriter} which prevents property values present in the {@link AnnotatedMember} anyGetter
* to be serialized twice.
*
* <p>
* Any property that's present in the anyGetter is ignored upon serialization. The values present in the anyGetter
* take precedence over those stored in the Bean's fields.
*
* <p>
* This BeanPropertyWriter implementation is intended to be used in combination with
* the {@link SettableBeanPropertyDelegate} to allow the propagation of deserialized properties that don't match the
* target field types.
*/
public class BeanPropertyWriterDelegate extends BeanPropertyWriter {
private static final Logger logger = LoggerFactory.getLogger(BeanPropertyWriterDelegate.class);
private final BeanPropertyWriter delegate;
private final AnnotatedMember anyGetter;
private final transient Supplier<Boolean> logDuplicateWarning;
BeanPropertyWriterDelegate(BeanPropertyWriter delegate, AnnotatedMember anyGetter, Supplier<Boolean> logDuplicateWarning) {
super(delegate);
this.delegate = delegate;
this.anyGetter = anyGetter;
this.logDuplicateWarning = logDuplicateWarning;
}
@Override
public void serializeAsField(Object bean, JsonGenerator gen, SerializerProvider prov) throws Exception {
Object valueInAnyGetter = null;
if (anyGetter != null) {
Object anyGetterValue = anyGetter.getValue(bean);
if (anyGetterValue != null) {
valueInAnyGetter = ((Map<?, ?>) anyGetterValue).get(delegate.getName());
}
}
if (valueInAnyGetter == null) {
delegate.serializeAsField(bean, gen, prov);
} else if (Boolean.TRUE.equals(logDuplicateWarning.get())) {
logger.warn("Value in field '{}' ignored in favor of value in additionalProperties ({}) for {}",
delegate.getName(), valueInAnyGetter, bean.getClass().getName());
}
}
}