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BasicAerospikePersistentEntity.java
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BasicAerospikePersistentEntity.java
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/*
* Copyright 2018 the original author or authors.
*
* 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
*
* https://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 org.springframework.data.aerospike.mapping;
import org.springframework.context.EnvironmentAware;
import org.springframework.core.env.Environment;
import org.springframework.data.mapping.MappingException;
import org.springframework.data.mapping.model.BasicPersistentEntity;
import org.springframework.data.util.Lazy;
import org.springframework.data.util.TypeInformation;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
/**
* Default implementation of {@link AerospikePersistentEntity}.
*
* @author Oliver Gierke
*/
public class BasicAerospikePersistentEntity<T>
extends BasicPersistentEntity<T, AerospikePersistentProperty>
implements AerospikePersistentEntity<T>, EnvironmentAware {
static final int DEFAULT_EXPIRATION = 0;
private final Lazy<String> setName;
private final Lazy<Integer> expiration;
private final Lazy<Boolean> isTouchOnRead;
private AerospikePersistentProperty expirationProperty;
private Environment environment;
/**
* Creates a new {@link BasicAerospikePersistentEntity} using a given {@link TypeInformation}.
*
* @param information must not be {@literal null}.
*/
public BasicAerospikePersistentEntity(TypeInformation<T> information) {
super(information);
this.setName = Lazy.of(() -> {
Class<T> type = getType();
Document annotation = type.getAnnotation(Document.class);
if (annotation != null && !annotation.collection().isEmpty()) {
Assert.notNull(environment, "Environment must be set to use 'collection'");
return environment.resolveRequiredPlaceholders(annotation.collection());
}
return type.getSimpleName();
});
this.expiration = Lazy.of(() -> {
Document annotation = getType().getAnnotation(Document.class);
if (annotation == null) {
return DEFAULT_EXPIRATION;
}
int expirationValue = getExpirationValue(annotation);
if (expirationValue <= 0) {
return expirationValue;
}
return (int) annotation.expirationUnit().toSeconds(expirationValue);
});
this.isTouchOnRead = Lazy.of(() -> {
Document annotation = getType().getAnnotation(Document.class);
return annotation != null && annotation.touchOnRead();
});
}
@Override
public void addPersistentProperty(AerospikePersistentProperty property) {
super.addPersistentProperty(property);
if (property.isExpirationProperty()) {
if (expirationProperty != null) {
String message = String.format("Attempt to add expiration property %s but already have property %s " +
"registered as expiration. Check your mapping configuration!", property.getField(),
expirationProperty.getField());
throw new MappingException(message);
}
expirationProperty = property;
}
}
@Override
public String getSetName() {
return setName.get();
}
@Override
public int getExpiration() {
return expiration.get();
}
@Override
public boolean isTouchOnRead() {
return isTouchOnRead.get();
}
@Override
public AerospikePersistentProperty getExpirationProperty() {
return expirationProperty;
}
@Override
public boolean hasExpirationProperty() {
return expirationProperty != null;
}
@Override
public void setEnvironment(Environment environment) {
this.environment = environment;
}
private int getExpirationValue(Document annotation) {
int expiration = annotation.expiration();
String expressionString = annotation.expirationExpression();
if (StringUtils.hasLength(expressionString)) {
Assert.state(expiration == DEFAULT_EXPIRATION, "Both 'expiration' and 'expirationExpression' are set");
Assert.notNull(environment, "Environment must be set to use 'expirationExpression'");
String resolvedExpression = environment.resolveRequiredPlaceholders(expressionString);
try {
return Integer.parseInt(resolvedExpression);
} catch (NumberFormatException e) {
throw new IllegalArgumentException(
"Invalid Integer value for expiration expression: " + resolvedExpression);
}
}
return expiration;
}
}