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#437 - Add example for Cassandra Lifecycle Events.

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This commit is contained in:
Mark Paluch
2018-09-24 09:47:43 -04:00
parent ee64a6af0d
commit 01da5a94b9
9 changed files with 356 additions and 2 deletions
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39
cassandra/example/src/main/java/example/springdata/cassandra/convert/Address.java Normal file
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@@ -0,0 +1,39 @@
/*
* 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
*
* 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 example.springdata.cassandra.convert;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.data.cassandra.core.mapping.Element;
import org.springframework.data.cassandra.core.mapping.Tuple;
/**
* Simple mapped tuple.
*
* @author Mark Paluch
*/
@Data
@AllArgsConstructor
@NoArgsConstructor
@Tuple
public class Address {
@Element(0) String address;
@Element(1) String city;
@Element(2) String zip;
}

5
cassandra/example/src/main/java/example/springdata/cassandra/convert/Addressbook.java
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@@ -17,7 +17,9 @@ package example.springdata.cassandra.convert;
import lombok.Data;
import java.util.Currency;
import java.util.List;
import java.util.Map;
import org.springframework.data.annotation.Id;
import org.springframework.data.cassandra.core.mapping.Table;
@@ -35,4 +37,7 @@ public class Addressbook {
Contact me;
List<Contact> friends;
Address address;
Map<Integer, Currency> preferredCurrencies;
}

22
cassandra/example/src/main/java/example/springdata/cassandra/convert/ConverterConfiguration.java
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@@ -17,6 +17,7 @@ package example.springdata.cassandra.convert;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Currency;
import java.util.List;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@@ -46,6 +47,8 @@ class ConverterConfiguration {
converters.add(new PersonWriteConverter());
converters.add(new PersonReadConverter());
converters.add(new CustomAddressbookReadConverter());
converters.add(CurrencyToStringConverter.INSTANCE);
converters.add(StringToCurrencyConverter.INSTANCE);
return new CassandraCustomConversions(converters);
}
@@ -98,4 +101,23 @@ class ConverterConfiguration {
return result;
}
}
enum StringToCurrencyConverter implements Converter<String, Currency> {
INSTANCE;
@Override
public Currency convert(String source) {
return Currency.getInstance(source);
}
}
enum CurrencyToStringConverter implements Converter<Currency, String> {
INSTANCE;
@Override
public String convert(Currency source) {
return source.getCurrencyCode();
}
}
}

36
cassandra/example/src/main/java/example/springdata/cassandra/events/BasicConfiguration.java Normal file
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@@ -0,0 +1,36 @@
/*
* 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
*
* 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 example.springdata.cassandra.events;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* Basic {@link Configuration} to create the necessary schema for the {@link User} table.
*
* @author Mark Paluch
*/
@SpringBootApplication
@EntityScan(basePackageClasses = User.class)
class BasicConfiguration {
@Bean
LoggingEventListener listener() {
return new LoggingEventListener();
}
}

91
cassandra/example/src/main/java/example/springdata/cassandra/events/LoggingEventListener.java Normal file
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@@ -0,0 +1,91 @@
/*
* 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
*
* 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 example.springdata.cassandra.events;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationListener;
import org.springframework.data.cassandra.core.mapping.event.AbstractCassandraEventListener;
import org.springframework.data.cassandra.core.mapping.event.AfterConvertEvent;
import org.springframework.data.cassandra.core.mapping.event.AfterDeleteEvent;
import org.springframework.data.cassandra.core.mapping.event.AfterLoadEvent;
import org.springframework.data.cassandra.core.mapping.event.AfterSaveEvent;
import org.springframework.data.cassandra.core.mapping.event.BeforeDeleteEvent;
import org.springframework.data.cassandra.core.mapping.event.BeforeSaveEvent;
/**
* {@link ApplicationListener} for Cassandra mapping events logging the events.
*
* @author Mark Paluch
*/
public class LoggingEventListener extends AbstractCassandraEventListener<Object> {
private static final Logger LOGGER = LoggerFactory.getLogger(LoggingEventListener.class);
/*
* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.event.AbstractCassandraEventListener#onBeforeSave(org.springframework.data.cassandra.core.mapping.event.BeforeSaveEvent)
*/
@Override
public void onBeforeSave(BeforeSaveEvent<Object> event) {
LOGGER.info("onBeforeSave: {}, {}", event.getSource(), event.getStatement());
}
/*
* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.event.AbstractCassandraEventListener#onAfterSave(org.springframework.data.cassandra.core.mapping.event.AfterSaveEvent)
*/
@Override
public void onAfterSave(AfterSaveEvent<Object> event) {
LOGGER.info("onAfterSave: {}", event.getSource());
}
/*
* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.event.AbstractCassandraEventListener#onBeforeDelete(org.springframework.data.cassandra.core.mapping.event.BeforeDeleteEvent)
*/
@Override
public void onBeforeDelete(BeforeDeleteEvent<Object> event) {
LOGGER.info("onBeforeDelete: {}", event.getSource());
}
/*
* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.event.AbstractCassandraEventListener#onAfterDelete(org.springframework.data.cassandra.core.mapping.event.AfterDeleteEvent)
*/
@Override
public void onAfterDelete(AfterDeleteEvent<Object> event) {
LOGGER.info("onAfterDelete: {}", event.getSource());
}
/*
* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.event.AbstractCassandraEventListener#onAfterLoad(org.springframework.data.cassandra.core.mapping.event.AfterLoadEvent)
*/
@Override
public void onAfterLoad(AfterLoadEvent<Object> event) {
LOGGER.info("onAfterLoad: {}", event.getSource());
}
/*
* (non-Javadoc)
* @see org.springframework.data.cassandra.core.mapping.event.AbstractCassandraEventListener#onAfterConvert(org.springframework.data.cassandra.core.mapping.event.AfterConvertEvent)
*/
@Override
public void onAfterConvert(AfterConvertEvent<Object> event) {
LOGGER.info("onAfterConvert: {}", event.getSource());
}
}

40
cassandra/example/src/main/java/example/springdata/cassandra/events/User.java Normal file
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@@ -0,0 +1,40 @@
/*
* 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
*
* 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 example.springdata.cassandra.events;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.data.cassandra.core.mapping.PrimaryKey;
import org.springframework.data.cassandra.core.mapping.Table;
/**
* Sample user class.
*
* @author Mark Paluch
*/
@Data
@NoArgsConstructor
@AllArgsConstructor
@Table(value = "users")
public class User {
private @PrimaryKey long id;
private String firstname;
private String lastname;
}

4
cassandra/example/src/main/java/example/springdata/cassandra/events/package-info.java Normal file
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@@ -0,0 +1,4 @@
/**
* Package usage of Lifecycle events.
*/
package example.springdata.cassandra.events;