小贝子编程

根节点Bundle的唯一约束违反，Apache Jackrabbit与Oracle



目前处于评估Apache Jackrabbit与我们的Oracle数据库的早期阶段。当测试repository.xml配置的初始设置时，得到以下错误:

15:18:32.281 [main] ERROR o.a.j.c.p.p.BundleDbPersistenceManager - FATAL error while writing the bundle: deadbeef-cafe-babe-cafe-babecafebabe
java.sql.SQLException: ORA-00001: unique constraint (REPO_BUNDLE_IDX) violated
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:113) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:754) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:219) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:972) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1192) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3415) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3521) ~[ojdbc14-10.2.0.4.jar:Oracle JDBC Driver version - "10.2.0.5.0"]
    at org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172) ~[commons-dbcp-1.3.jar:1.3]
    at org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172) ~[commons-dbcp-1.3.jar:1.3]
    at org.apache.commons.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172) ~[commons-dbcp-1.3.jar:1.3]
    at org.apache.jackrabbit.core.util.db.ConnectionHelper.execute(ConnectionHelper.java:515) ~[jackrabbit-data-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.util.db.ConnectionHelper.reallyUpdate(ConnectionHelper.java:344) ~[jackrabbit-data-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.util.db.ConnectionHelper$2.call(ConnectionHelper.java:331) ~[jackrabbit-data-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.util.db.ConnectionHelper$2.call(ConnectionHelper.java:327) ~[jackrabbit-data-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.util.db.ConnectionHelper$RetryManager.doTry(ConnectionHelper.java:536) ~[jackrabbit-data-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.util.db.ConnectionHelper.update(ConnectionHelper.java:327) ~[jackrabbit-data-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.persistence.pool.BundleDbPersistenceManager.storeBundle(BundleDbPersistenceManager.java:950) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.putBundle(AbstractBundlePersistenceManager.java:800) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.storeInternal(AbstractBundlePersistenceManager.java:715) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:593) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.persistence.pool.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:482) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.state.SharedItemStateManager.createRootNodeState(SharedItemStateManager.java:1725) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.state.SharedItemStateManager.<init>(SharedItemStateManager.java:217) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.RepositoryImpl.createItemStateManager(RepositoryImpl.java:1396) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.doInitialize(RepositoryImpl.java:2062) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.initialize(RepositoryImpl.java:2035) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.RepositoryImpl.initStartupWorkspaces(RepositoryImpl.java:543) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.RepositoryImpl.<init>(RepositoryImpl.java:326) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:615) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.TransientRepository$3.getRepository(TransientRepository.java:250) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.TransientRepository.startRepository(TransientRepository.java:280) [jackrabbit-core-2.12.4.jar:2.12.4]
    at org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:376) [jackrabbit-core-2.12.4.jar:2.12.4]

调试时，我可以看到它最初检查这个bundle - System Root Node -存在，并且它确实发现它已经在数据库中，但是当试图插入Root Node时，它不在DB中，然后它也试图再次插入System Root Node，这就是它遇到约束违反的地方。

这是我用来创建Repository实例的代码:

Map<String, String> props = new HashMap<>();
props.put(RepositoryFactoryImpl.REPOSITORY_HOME, "jackrabbit");
props.put(RepositoryFactoryImpl.REPOSITORY_CONF, "classpath:jackrabbit/repository.xml");
Repository repository =  JcrUtils.getRepository(props);
repository.login(new SimpleCredentials("admin", "admin".toCharArray()));

And my repository.xml:

<FileSystem class="org.apache.jackrabbit.core.fs.db.OracleFileSystem">
    <param name="url" value="jdbc:oracle:thin:@mydb:1521:XE"/>
    <param name="user" value="myuser"/>
    <param name="password" value="mypassword"/>
    <param name="schemaObjectPrefix" value="REPO_"/>
    <param name="schemaCheckEnabled" value="false"/>
</FileSystem>
<DataStore class="org.apache.jackrabbit.core.data.db.DbDataStore">
    <param name="url" value="jdbc:oracle:thin:@mydb:1521:XE"/>
    <param name="user" value="myuser"/>
    <param name="password" value="mypassword"/>
    <param name="databaseType" value="oracle"/>
    <param name="driver" value="oracle.jdbc.driver.OracleDriver"/>
    <param name="schemaObjectPrefix" value="REPO_"/>
    <param name="schemaCheckEnabled" value="false"/>
</DataStore>
<Security appName="Jackrabbit">
    <SecurityManager class="org.apache.jackrabbit.core.security.simple.SimpleSecurityManager"
                     workspaceName="security"/>
    <AccessManager class="org.apache.jackrabbit.core.security.simple.SimpleAccessManager"/>
    <LoginModule class="org.apache.jackrabbit.core.security.simple.SimpleLoginModule"/>
</Security>
<Workspaces rootPath="${rep.home}/workspaces" defaultWorkspace="ContentRepo"/>
<Workspace name="ContentRepo">
    <FileSystem class="org.apache.jackrabbit.core.fs.db.OracleFileSystem">
        <param name="url" value="jdbc:oracle:thin:@mydb:1521:XE"/>
        <param name="user" value="myuser"/>
        <param name="password" value="mypassword"/>
        <param name="schemaObjectPrefix" value="REPO_"/>
        <param name="schemaCheckEnabled" value="false"/>
    </FileSystem>
    <PersistenceManager class="org.apache.jackrabbit.core.persistence.bundle.OraclePersistenceManager">
        <param name="url" value="jdbc:oracle:thin:@mydb:1521:XE"/>
        <param name="user" value="myuser"/>
        <param name="password" value="mypassword"/>
        <param name="schemaObjectPrefix" value="REPO_"/>
        <param name="schemaCheckEnabled" value="false"/>
    </PersistenceManager>
    <SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
        <param name="path" value="${rep.home}/index"/>
        <param name="textFilterClasses" value="org.apache.jackrabbit.extractor.PlainTextExtractor,org.apache.jackrabbit.extractor.MsWordTextExtractor,org.apache.jackrabbit.extractor.MsExcelTextExtractor,org.apache.jackrabbit.extractor.MsPowerPointTextExtractor,org.apache.jackrabbit.extractor.PdfTextExtractor,org.apache.jackrabbit.extractor.OpenOfficeTextExtractor,org.apache.jackrabbit.extractor.RTFTextExtractor,org.apache.jackrabbit.extractor.HTMLTextExtractor,org.apache.jackrabbit.extractor.XMLTextExtractor"/>
        <param name="extractorPoolSize" value="2"/>
        <param name="supportHighlighting" value="true"/>
    </SearchIndex>
</Workspace>
<Versioning rootPath="${rep.home}/version">
    <FileSystem class="org.apache.jackrabbit.core.fs.db.OracleFileSystem">
        <param name="url" value="jdbc:oracle:thin:@mydb:1521:XE"/>
        <param name="user" value="myuser"/>
        <param name="password" value="mypassword"/>
        <param name="schemaObjectPrefix" value="REPO_"/>
        <param name="schemaCheckEnabled" value="false"/>
    </FileSystem>
    <PersistenceManager class="org.apache.jackrabbit.core.persistence.pool.OraclePersistenceManager">
        <param name="url" value="jdbc:oracle:thin:@mydb:1521:XE"/>
        <param name="user" value="myuser"/>
        <param name="password" value="mypassword"/>
        <param name="schemaObjectPrefix" value="REPO_"/>
        <param name="schemaCheckEnabled" value="false"/>
    </PersistenceManager>
</Versioning>
<SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
    <param name="path" value="${rep.home}/repository/index"/>
    <param name="textFilterClasses" value="org.apache.jackrabbit.extractor.PdfTextExtractor,org.apache.jackrabbit.extractor.OpenOfficeTextExtractor,org.apache.jackrabbit.extractor.RTFTextExtractor,org.apache.jackrabbit.extractor.HTMLTextExtractor,org.apache.jackrabbit.extractor.XMLTextExtractor"/>
    <param name="extractorPoolSize" value="2"/>
    <param name="supportHighlighting" value="true"/>
</SearchIndex>
<Cluster>
    <Journal class="org.apache.jackrabbit.core.journal.OracleDatabaseJournal">
        <param name="url" value="jdbc:oracle:thin:@mydb:1521:XE"/>
        <param name="user" value="myuser"/>
        <param name="password" value="mypassword"/>
        <param name="schemaObjectPrefix" value="REPO_"/>
        <param name="schemaCheckEnabled" value="false"/>
    </Journal>
</Cluster>

版本:Oracle 11.2.0Java 8Apache Jackrabbit 2.12.4

找到了一个工作，但我确信我的配置仍然有问题，而不是Jackrabbit Oracle支持中的错误。

无论如何，截止日期是什么，我能够通过重写OraclePersistenceManager.storeBundle:

使一切正常工作。
public class MyPersistenceManager extends OraclePersistenceManager {
    protected synchronized void storeBundle(NodePropBundle bundle) throws ItemStateException {
        if (exists(bundle.getId())) {
            bundle.markOld();
        }
        super.storeBundle(bundle);
    }
}

希望这不会只是隐藏了一个在路上出现的问题。

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