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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-8752" style="color: #3b73af; text-decoration: none"><img src="https://hibernate.atlassian.net/images/icons/issuetypes/bug.png" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-8752" style="color: #3b73af; text-decoration: none">HHH-8752</a>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-8752" style="color: #3b73af; text-decoration: none">Bean injection mechanism for MultiTenantConnectionProvider and TenantIdentifierResolver</a> </span>
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Issue Type:
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Affects Versions:
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4.2.7.SP1
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Unassigned
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Components:
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entity-manager
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Created:
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27/Nov/13 2:04 AM
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Environment:
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Spring 3.2.5, Tomcat 7
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Priority:
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Reporter:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="ceefour" id="email_ceefour" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=ceefour" style="color:#6c797f;; color: #3b73af; text-decoration: none">Hendy Irawan</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">For multitenancy support, Hibernate instantiates the classes referred by configuration:<br /> <tt>org.hibernate.cfg.Environment.MULTI_TENANT_CONNECTION_PROVIDER</tt> and <tt>org.hibernate.cfg.Environment.MULTI_TENANT_IDENTIFIER_RESOLVER</tt> however provides no way to inject beans (e.g. <tt>DataSource</tt>, <tt>ApplicationContext</tt>, etc.) to these instances.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">We use <tt>static final</tt> variables as workarounds like this in our Spring configuration: (which seem to work, but not clean)</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Bean(name=<span class="code-quote" style="color: #009100">"quikdoPU"</span>)
<span class="code-keyword" style="color: #000091">public</span> LocalContainerEntityManagerFactoryBean quikdoPU() <span class="code-keyword" style="color: #000091">throws</span> PropertyVetoException {
<span class="code-comment" style="color: #808080">// Workaround :(
</span> SoluvasMultiTenantConnectionProviderImpl.dataSource = dataSource();
SoluvasTenantIdentifierResolver.appCtx = appCtx;
/**
* So the list of possible options are,
*
* validate: validate the schema, makes no changes to the database.
* update: update the schema.
* create: creates the schema, destroying previous data.
* create-drop: drop the schema at the end of the session.
*/
<span class="code-keyword" style="color: #000091">final</span> <span class="code-object" style="color: #910091">String</span> jpaHbm2DdlAuto = env.getRequiredProperty(<span class="code-quote" style="color: #009100">"jpaHbm2DdlAuto"</span>);
log.info(<span class="code-quote" style="color: #009100">"JPA schema configuration: hbm2ddlauto={}"</span>, jpaHbm2DdlAuto);
<span class="code-keyword" style="color: #000091">final</span> LocalContainerEntityManagerFactoryBean factoryBean = <span class="code-keyword" style="color: #000091">new</span> LocalContainerEntityManagerFactoryBean();
factoryBean.setPersistenceUnitName(<span class="code-quote" style="color: #009100">"quikdoPU"</span>); <span class="code-comment" style="color: #808080">// persistence.xml
</span> factoryBean.setDataSource(dataSource());
factoryBean.setJpaVendorAdapter(jpaVendorAdapter());
factoryBean.setPackagesToScan(
<span class="code-quote" style="color: #009100">"com.quikdo.schema.core.jpa"</span>
);
<span class="code-keyword" style="color: #000091">final</span> ImmutableMap.Builder<<span class="code-object" style="color: #910091">String</span>, <span class="code-object" style="color: #910091">Object</span>> propb = ImmutableMap.builder();
propb.put(org.hibernate.cfg.Environment.HBM2DDL_AUTO, jpaHbm2DdlAuto);
<span class="code-comment" style="color: #808080">// Must be supplied, otherwise you won't get JPA 2.1 @Index support
</span> <span class="code-comment" style="color: #808080">// <span class="code-quote" style="color: #009100; color: #808080">"You must specify a SQL Dialect via the hibernate.dialect property when using schema generation"</span>
</span> propb.put(org.hibernate.cfg.Environment.DIALECT, PostgreSQL82Dialect.class.getName());
<span class="code-comment" style="color: #808080">// Write all SQL statements to the <b>console</b> (which we don't want, since we use shell).
</span> <span class="code-comment" style="color: #808080">// This is an alternative to setting the log category org.hibernate.SQL to debug.
</span> <span class="code-comment" style="color: #808080">// So please configure via logback.xml instead.
</span> propb.put(org.hibernate.cfg.Environment.SHOW_SQL, <span class="code-keyword" style="color: #000091">false</span>);
propb.put(org.hibernate.cfg.Environment.FORMAT_SQL, <span class="code-keyword" style="color: #000091">true</span>);
propb.put(org.hibernate.cfg.Environment.USE_SQL_COMMENTS, <span class="code-keyword" style="color: #000091">true</span>);
<span class="code-comment" style="color: #808080">// https://hibernate.atlassian.net/browse/ANN-99?focusedCommentId=22432&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-22432
</span> propb.put(org.hibernate.ejb.HibernatePersistence.NAMING_STRATEGY, DefaultComponentSafeNamingStrategy.class.getName());
<span class="code-comment" style="color: #808080">// Schema-based Multi-tenancy
</span> <span class="code-comment" style="color: #808080">// http://docs.jboss.org/hibernate/core/4.2/devguide/en-US/html/ch16.html
</span> <span class="code-comment" style="color: #808080">// https://community.jboss.org/message/838997
</span> propb.put(org.hibernate.cfg.Environment.MULTI_TENANT,
MultiTenancyStrategy.SCHEMA);
propb.put(org.hibernate.cfg.Environment.MULTI_TENANT_CONNECTION_PROVIDER,
SoluvasMultiTenantConnectionProviderImpl.class);
propb.put(org.hibernate.cfg.Environment.MULTI_TENANT_IDENTIFIER_RESOLVER,
SoluvasTenantIdentifierResolver.class);
<span class="code-keyword" style="color: #000091">final</span> Map<<span class="code-object" style="color: #910091">String</span>, <span class="code-object" style="color: #910091">Object</span>> propertyMap = propb.build();
factoryBean.setJpaPropertyMap(propertyMap);
<span class="code-keyword" style="color: #000091">return</span> factoryBean;
}
</pre>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">SoluvasMultiTenantConnectionProviderImpl.java :</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">public</span> class SoluvasMultiTenantConnectionProviderImpl <span class="code-keyword" style="color: #000091">implements</span> MultiTenantConnectionProvider, Stoppable {
<span class="code-keyword" style="color: #000091">private</span> <span class="code-keyword" style="color: #000091">static</span> <span class="code-keyword" style="color: #000091">final</span> <span class="code-object" style="color: #910091">long</span> serialVersionUID = 1L;
<span class="code-keyword" style="color: #000091">private</span> <span class="code-keyword" style="color: #000091">static</span> <span class="code-keyword" style="color: #000091">final</span> Logger log = LoggerFactory
.getLogger(SoluvasMultiTenantConnectionProviderImpl.class);
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">static</span> <span class="code-keyword" style="color: #000091">final</span> <span class="code-object" style="color: #910091">String</span> PUBLIC_SCHEMA = <span class="code-quote" style="color: #009100">"<span class="code-keyword" style="color: #000091; color: #009100">public</span>"</span>;
<span class="code-comment" style="color: #808080">// @Inject
</span> <span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">static</span> DataSource dataSource;
@Override
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">boolean</span> isUnwrappableAs(<span class="code-object" style="color: #910091">Class</span> unwrapType) {
<span class="code-keyword" style="color: #000091">return</span> MultiTenantConnectionProvider.class.equals( unwrapType ) ||
SoluvasMultiTenantConnectionProviderImpl.class.isAssignableFrom( unwrapType );
}
@Override
<span class="code-keyword" style="color: #000091">public</span> <T> T unwrap(<span class="code-object" style="color: #910091">Class</span><T> unwrapType) {
<span class="code-keyword" style="color: #000091">if</span> ( isUnwrappableAs( unwrapType ) ) {
<span class="code-keyword" style="color: #000091">return</span> (T) <span class="code-keyword" style="color: #000091">this</span>;
}
<span class="code-keyword" style="color: #000091">else</span> {
<span class="code-keyword" style="color: #000091">throw</span> <span class="code-keyword" style="color: #000091">new</span> UnknownUnwrapTypeException( unwrapType );
}
}
@Override
<span class="code-keyword" style="color: #000091">public</span> void stop() {
}
@Override
<span class="code-keyword" style="color: #000091">public</span> Connection getAnyConnection() <span class="code-keyword" style="color: #000091">throws</span> SQLException {
Preconditions.checkNotNull(dataSource, <span class="code-quote" style="color: #009100">"dataSource must be provided"</span>);
<span class="code-keyword" style="color: #000091">return</span> dataSource.getConnection();
}
@Override
<span class="code-keyword" style="color: #000091">public</span> void releaseAnyConnection(Connection connection) <span class="code-keyword" style="color: #000091">throws</span> SQLException {
connection.close();
}
@Override
<span class="code-keyword" style="color: #000091">public</span> Connection getConnection(<span class="code-object" style="color: #910091">String</span> tenantIdentifier)
<span class="code-keyword" style="color: #000091">throws</span> SQLException {
Preconditions.checkNotNull(dataSource, <span class="code-quote" style="color: #009100">"dataSource must be provided"</span>);
<span class="code-keyword" style="color: #000091">final</span> Connection conn = dataSource.getConnection();
<span class="code-keyword" style="color: #000091">try</span> {
<span class="code-keyword" style="color: #000091">final</span> PreparedStatement st = conn.prepareStatement(<span class="code-quote" style="color: #009100">"SET SCHEMA ?"</span>);
st.setString(1, tenantIdentifier);
st.execute();
} <span class="code-keyword" style="color: #000091">catch</span> (SQLException e) {
<span class="code-keyword" style="color: #000091">throw</span> <span class="code-keyword" style="color: #000091">new</span> RuntimeException(
<span class="code-quote" style="color: #009100">"Could not alter JDBC connection to specified schema ["</span> + tenantIdentifier + <span class="code-quote" style="color: #009100">"]"</span>, e);
}
<span class="code-keyword" style="color: #000091">return</span> conn;
}
@Override
<span class="code-keyword" style="color: #000091">public</span> void releaseConnection(<span class="code-object" style="color: #910091">String</span> tenantIdentifier, Connection connection)
<span class="code-keyword" style="color: #000091">throws</span> SQLException {
<span class="code-keyword" style="color: #000091">try</span> {
<span class="code-keyword" style="color: #000091">final</span> PreparedStatement st = connection.prepareStatement(<span class="code-quote" style="color: #009100">"SET SCHEMA ?"</span>);
st.setString(1, PUBLIC_SCHEMA);
st.execute();
} <span class="code-keyword" style="color: #000091">catch</span> (SQLException e) {
<span class="code-comment" style="color: #808080">// on error, <span class="code-keyword" style="color: #000091; color: #808080">throw</span> an exception to make sure the connection is not returned to the pool.
</span> <span class="code-comment" style="color: #808080">// your requirements may differ
</span> <span class="code-keyword" style="color: #000091">throw</span> <span class="code-keyword" style="color: #000091">new</span> RuntimeException(
<span class="code-quote" style="color: #009100">"Could not alter released JDBC connection from schema '"</span> + tenantIdentifier + <span class="code-quote" style="color: #009100">"' to schema '"</span> + PUBLIC_SCHEMA + <span class="code-quote" style="color: #009100">"'"</span>, e);
}
connection.close();
}
@Override
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">boolean</span> supportsAggressiveRelease() {
<span class="code-keyword" style="color: #000091">return</span> <span class="code-keyword" style="color: #000091">true</span>;
}
}
</pre>
</div>
</div>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">SoluvasTenantIdentifierResolver.java :</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">public</span> class SoluvasTenantIdentifierResolver <span class="code-keyword" style="color: #000091">implements</span>
CurrentTenantIdentifierResolver {
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">static</span> ApplicationContext appCtx;
/* (non-Javadoc)
* @see org.hibernate.context.spi.CurrentTenantIdentifierResolver#resolveCurrentTenantIdentifier()
*/
@Override @Nullable
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> resolveCurrentTenantIdentifier() {
<span class="code-keyword" style="color: #000091">try</span> {
TenantRef tenantRef = appCtx.getBean(TenantRef.class);
<span class="code-comment" style="color: #808080">// <span class="code-keyword" style="color: #000091; color: #808080">final</span> RequestAttributes requestAttrs = RequestOrCommandScope.currentRequestAttributes();
</span><span class="code-comment" style="color: #808080">// <span class="code-keyword" style="color: #000091; color: #808080">final</span> TenantRef tenantRef = Preconditions.checkNotNull((TenantRef) requestAttrs.resolveReference(<span class="code-quote" style="color: #009100; color: #808080">"tenantRef"</span>),
</span><span class="code-comment" style="color: #808080">// <span class="code-quote" style="color: #009100; color: #808080">"Cannot resolve 'tenantRef' attribute from RequestAttributes"</span>);
</span><span class="code-comment" style="color: #808080">// <span class="code-keyword" style="color: #000091; color: #808080">final</span> Set<<span class="code-object" style="color: #910091; color: #808080">String</span>> attributeNames = ImmutableSet.copyOf(requestAttrs.getAttributeNames(RequestAttributes.SCOPE_REQUEST));
</span><span class="code-comment" style="color: #808080">// <span class="code-keyword" style="color: #000091; color: #808080">final</span> TenantRef tenantRef = Preconditions.checkNotNull((TenantRef) requestAttrs.getAttribute(<span class="code-quote" style="color: #009100; color: #808080">"tenantRef"</span>, RequestAttributes.SCOPE_REQUEST),
</span><span class="code-comment" style="color: #808080">// <span class="code-quote" style="color: #009100; color: #808080">"Cannot get 'tenantRef' SCOPE_REQUEST attribute from RequestAttributes, known attribute names: %s"</span>, attributeNames);
</span> <span class="code-keyword" style="color: #000091">return</span> tenantRef.getTenantId();
} <span class="code-keyword" style="color: #000091">catch</span> (IllegalStateException e) {
<span class="code-comment" style="color: #808080">// not in request or command scope
</span> <span class="code-keyword" style="color: #000091">return</span> <span class="code-keyword" style="color: #000091">null</span>;
}
}
/* (non-Javadoc)
* @see org.hibernate.context.spi.CurrentTenantIdentifierResolver#validateExistingCurrentSessions()
*/
@Override
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">boolean</span> validateExistingCurrentSessions() {
<span class="code-keyword" style="color: #000091">return</span> resolveCurrentTenantIdentifier() != <span class="code-keyword" style="color: #000091">null</span>;
}
}
</pre>
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</div>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Other threads that point or request this capability: <a href="http://stackoverflow.com/questions/16213573/setting-up-a-multitenantconnectionprovider-using-hibernate-4-2-and-spring-3-1-1" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">http://stackoverflow.com/questions/16213573/setting-up-a-multitenantconnectionprovider-using-hibernate-4-2-and-spring-3-1-1</a></p>
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