Spring/spring-data-commons
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the beginning of the Sping Data Common sub-project

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trisberg
2010-06-10 16:50:23 -04:00
commit eb866cd48c
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.gitignore vendored Normal file
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/target/

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pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.springframework.data</groupId>
<artifactId>common</artifactId>
<packaging>jar</packaging>
<version>1.0.0.SNAPSHOT</version>
<name>Spring Data Common Interfaces and Implementations</name>
<properties>
<spring.version>3.0.2.RELEASE</spring.version>
<slf4j.version>1.6.0</slf4j.version>
</properties>
<repositories>
<repository>
<id>spring-maven-snapshot</id>
<snapshots>
<enabled>true</enabled>
</snapshots>
<name>Springframework Maven SNAPSHOT Repository</name>
<url>http://maven.springframework.org/snapshot</url>
</repository>
<repository>
<id>spring-maven-milestone</id>
<snapshots>
<enabled>true</enabled>
</snapshots>
<name>Springframework Maven MILESTONE Repository</name>
<url>http://maven.springframework.org/milestone</url>
</repository>
</repositories>
<dependencies>
<!-- General dependencies for standard applications -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<!-- Exclusions only required for version 1.2.15 of log4j -->
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- Spring dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>1.8.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.8.0</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.5</version>
<configuration>
<excludes>
<exclude>**/*_Roo_*</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.2-beta-5</version>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.5</version>
</plugin>
<!-- IDE -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.7</version> <!-- Note 2.8 does not work with AspectJ aspect path -->
<configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>false</downloadJavadocs>
<wtpversion>2.0</wtpversion>
<additionalBuildcommands>
<buildCommand>
<name>org.eclipse.ajdt.core.ajbuilder</name>
<arguments>
<aspectPath>org.springframework.aspects</aspectPath>
</arguments>
</buildCommand>
<buildCommand>
<name>org.springframework.ide.eclipse.core.springbuilder</name>
</buildCommand>
</additionalBuildcommands>
<additionalProjectnatures>
<projectnature>org.eclipse.ajdt.ui.ajnature</projectnature>
<projectnature>com.springsource.sts.roo.core.nature</projectnature>
<projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
</additionalProjectnatures>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-idea-plugin</artifactId>
<version>2.2</version>
<configuration>
<downloadSources>true</downloadSources>
<dependenciesAsLibraries>true</dependenciesAsLibraries>
</configuration>
</plugin>
</plugins>
</build>
</project>

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src/main/java/org/springframework/data/serialization/SerializationStore.java Normal file
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package org.springframework.data.serialization;
import java.lang.annotation.ElementType;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.lang.annotation.Retention;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface SerializationStore {
}

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src/main/java/org/springframework/data/support/ChangeSet.java Normal file
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package org.springframework.data.support;
import java.util.Map;
import org.springframework.core.convert.ConversionService;
/**
* Interface representing the set of changes in an entity.
*
* @author Rod Johnson
* @author Thomas Risberg
*
*/
public interface ChangeSet {
<T> T get(String key, Class<T> requiredClass, ConversionService cs);
void set(String key, Object o);
Map<String, Object> getValues();
Object removeProperty(String k);
}

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src/main/java/org/springframework/data/support/ChangeSetBacked.java Normal file
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package org.springframework.data.support;
/**
* Interface introduced to objects exposing ChangeSet information
* @author Rod Johnson
* @author Thomas Risberg
*/
public interface ChangeSetBacked {
ChangeSet getChangeSet();
}

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src/main/java/org/springframework/data/support/ChangeSetPersister.java Normal file
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package org.springframework.data.support;
import org.springframework.dao.DataAccessException;
/**
* Interface to be implemented by classes that can synchronize
* between data stores and ChangeSets.
* @author Rod Johnson
*
* @param <K> entity key
*/
public interface ChangeSetPersister<K> {
String ID_KEY = "_id";
String CLASS_KEY = "_class";
/**
* TODO how to tell when not found? throw exception?
*/
void getPersistentState(Class<? extends ChangeSetBacked> entityClass, K key, ChangeSet changeSet) throws DataAccessException, NotFoundException;
/**
* Return id
* @param cs
* @return
* @throws DataAccessException
*/
K getPersistentId(Class<? extends ChangeSetBacked> entityClass, ChangeSet cs) throws DataAccessException;
/**
* Return key
* @param cs Key may be null if not persistent
* @return
* @throws DataAccessException
*/
K persistState(Class<? extends ChangeSetBacked> entityClass, ChangeSet cs) throws DataAccessException;
/**
* Exception thrown in alternate control flow if getPersistentState
* finds no entity data.
*/
class NotFoundException extends Exception {
}
}

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src/main/java/org/springframework/data/support/ChangeSetSynchronizer.java Normal file
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package org.springframework.data.support;
import java.util.Map;
import org.springframework.dao.DataAccessException;
/**
* Interface to be implemented by classes that can synchronize
* between entities and ChangeSets.
* @author Rod Johnson
*
* @param <E>
*/
public interface ChangeSetSynchronizer<E extends ChangeSetBacked> {
Map<String, Class<?>> persistentFields(Class<? extends E> entityClassClass);
/**
* Take all entity fields into a changeSet.
* @param entity
* @return
* @throws DataAccessException
*/
void populateChangeSet(ChangeSet changeSet, E entity) throws DataAccessException;
void populateEntity(ChangeSet changeSet, E entity) throws DataAccessException;
}

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src/main/java/org/springframework/data/support/HashMapChangeSet.java Normal file
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package org.springframework.data.support;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.springframework.core.convert.ConversionService;
/**
* Simple ChangeSet implementation backed by a HashMap.
* @author Thomas Risberg
* @author Rod Johnson
*/
public class HashMapChangeSet implements ChangeSet {
private Map<String, Object> values;
public HashMapChangeSet(Map<String,Object> values) {
this.values = values;
}
public HashMapChangeSet() {
this(new HashMap<String, Object>());
}
@Override
public void set(String key, Object o) {
values.put(key, o);
}
@Override
public String toString() {
return "HashMapChangeSet: values=[" + values + "]";
}
@Override
public Map<String, Object> getValues() {
return Collections.unmodifiableMap(values);
}
@Override
public Object removeProperty(String k) {
return this.values.remove(k);
}
@Override
public <T> T get(String key, Class<T> requiredClass, ConversionService conversionService) {
return conversionService.convert(values.get(key), requiredClass);
}
}

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src/main/java/org/springframework/data/transaction/ChangedSetBackedTransactionSynchronization.java Normal file
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package org.springframework.data.transaction;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.data.support.ChangeSetBacked;
import org.springframework.data.support.ChangeSetPersister;
import org.springframework.transaction.support.TransactionSynchronization;
public class ChangedSetBackedTransactionSynchronization implements TransactionSynchronization {
protected final Log log = LogFactory.getLog(getClass());
private ChangeSetPersister<Object> changeSetPersister;
private ChangeSetBacked entity;
private int changeSetTxStatus = -1;
public ChangedSetBackedTransactionSynchronization(ChangeSetPersister<Object> changeSetPersister, ChangeSetBacked entity) {
this.changeSetPersister = changeSetPersister;
this.entity = entity;
}
@Override
public void afterCommit() {
log.debug("After Commit called for " + entity);
changeSetPersister.persistState(entity.getClass(), entity.getChangeSet());
changeSetTxStatus = 0;
}
@Override
public void afterCompletion(int status) {
log.debug("After Completion called with status = " + status);
if (changeSetTxStatus == 0) {
if (status == STATUS_COMMITTED) {
// this is good
log.debug("ChangedSetBackedTransactionSynchronization completed successfully for " + this.entity);
}
else {
// this could be bad - TODO: compensate
log.error("ChangedSetBackedTransactionSynchronization failed for " + this.entity);
}
}
}
@Override
public void beforeCommit(boolean readOnly) {
}
@Override
public void beforeCompletion() {
}
@Override
public void flush() {
}
@Override
public void resume() {
throw new IllegalStateException("ChangedSetBackedTransactionSynchronization does not support transaction suspension currently.");
}
@Override
public void suspend() {
throw new IllegalStateException("ChangedSetBackedTransactionSynchronization does not support transaction suspension currently.");
}
}