Examples of org.apache.accumulo.core.iterators.system.SourceSwitchingIterator$DataSource

Package org.apache.accumulo.core.iterators.system

Examples of org.apache.accumulo.core.iterators.system.SourceSwitchingIterator$DataSource

org.jboss.jca.common.api.metadata.ds.v11.DataSource
A SortedKeyValueIterator which presents a view over some section of data, regardless of whether or not it is backed by memory (InMemoryMap) or an RFile (InMemoryMap that was minor compacted to a file). Clients reading from a table that has data in memory should not see interruption in their scan when that data is minor compacted. This iterator is designed to manage this behind the scene.

    ScanDataSource dataSource = new ScanDataSource(authorizations, this.defaultSecurityLabel, columns, ssiList, ssio, interruptFlag);
    
    LookupResult result = null;


    try {
      SortedKeyValueIterator<Key,Value> iter = new SourceSwitchingIterator(dataSource);
      result = lookup(iter, ranges, columns, results, maxResultSize);
      return result;
    } catch (IOException ioe) {
      dataSource.close(true);
      throw ioe;

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        SortedKeyValueIterator<Key,Value> iter;
        
        if (options.isolated) {
          if (isolatedIter == null)
            isolatedIter = new SourceSwitchingIterator(dataSource, true);
          else
            isolatedDataSource.fileManager.reattach();
          iter = isolatedIter;
        } else {
          iter = new SourceSwitchingIterator(dataSource, false);
        }
        
        results = nextBatch(iter, range, options.num, options.columnSet);
        
        if (results.results == null) {

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            ServiceTarget serviceTarget = phaseContext.getServiceTarget();
            ServiceVerificationHandler verificationHandler = new ServiceVerificationHandler();


            if (dataSources.getDataSource() != null && dataSources.getDataSource().size() > 0) {
                for (int i = 0; i < dataSources.getDataSource().size(); i++) {
                    DataSource ds = (DataSource)dataSources.getDataSource().get(i);
                    if (ds.isEnabled() && ds.getDriver() != null) {
                        try {
                            final String jndiName = cleanupJavaContext(ds.getJndiName());
                            LocalDataSourceService lds = new LocalDataSourceService(jndiName);
                            lds.getDataSourceConfigInjector().inject(buildDataSource(ds));
                            final PathAddress addr = getDataSourceAddress(ds.getJndiName(), deploymentUnit, false);
                            installManagementModel(ds, deploymentUnit, addr);
                            startDataSource(lds, jndiName, ds.getDriver(), serviceTarget, verificationHandler, getRegistration(false, deploymentUnit), ds.getJndiName());
                        } catch (Exception e) {
                            throw ConnectorMessages.MESSAGES.exceptionDeployingDatasource(e, ds.getJndiName());
                        }
                    } else {
                        ConnectorLogger.DS_DEPLOYER_LOGGER.debugf("Ignoring: %s", ds.getJndiName());
                    }
                }
            }


            if (dataSources.getXaDataSource() != null && dataSources.getXaDataSource().size() > 0) {

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        final List<DataSources> dataSourcesList = context.getAttachmentList(DsXmlDeploymentParsingProcessor.DATA_SOURCES_ATTACHMENT_KEY);


        for (final DataSources dataSources : dataSourcesList) {
            if (dataSources.getDataSource() != null) {
                for (int i = 0; i < dataSources.getDataSource().size(); i++) {
                    DataSource ds = (DataSource)dataSources.getDataSource().get(i);
                    undeployDataSource(ds, context);
                }
            }
            if (dataSources.getXaDataSource() != null) {
               for (int i = 0; i < dataSources.getXaDataSource().size(); i++) {

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            ServiceTarget serviceTarget = phaseContext.getServiceTarget();
            ServiceVerificationHandler verificationHandler = new ServiceVerificationHandler();


            if (dataSources.getDataSource() != null && dataSources.getDataSource().size() > 0) {
                for (int i = 0; i < dataSources.getDataSource().size(); i++) {
                    DataSource ds = (DataSource)dataSources.getDataSource().get(i);
                    if (ds.isEnabled() && ds.getDriver() != null) {
                        try {
                            final String jndiName = cleanupJavaContext(ds.getJndiName());
                            LocalDataSourceService lds = new LocalDataSourceService(jndiName);
                            lds.getDataSourceConfigInjector().inject(buildDataSource(ds));
                            final String dsName = ds.getJndiName();
                            final PathAddress addr = getDataSourceAddress(dsName, deploymentUnit, false);
                            installManagementModel(ds, deploymentUnit, addr);
                            startDataSource(lds, jndiName, ds.getDriver(), serviceTarget, verificationHandler,
                                    getRegistration(false, deploymentUnit), getResource(dsName, false, deploymentUnit), dsName);
                        } catch (Exception e) {
                            throw ConnectorMessages.MESSAGES.exceptionDeployingDatasource(e, ds.getJndiName());
                        }
                    } else {
                        ConnectorLogger.DS_DEPLOYER_LOGGER.debugf("Ignoring: %s", ds.getJndiName());
                    }
                }
            }


            if (dataSources.getXaDataSource() != null && dataSources.getXaDataSource().size() > 0) {

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        final List<DataSources> dataSourcesList = context.getAttachmentList(DsXmlDeploymentParsingProcessor.DATA_SOURCES_ATTACHMENT_KEY);


        for (final DataSources dataSources : dataSourcesList) {
            if (dataSources.getDataSource() != null) {
                for (int i = 0; i < dataSources.getDataSource().size(); i++) {
                    DataSource ds = (DataSource)dataSources.getDataSource().get(i);
                    undeployDataSource(ds, context);
                }
            }
            if (dataSources.getXaDataSource() != null) {
               for (int i = 0; i < dataSources.getXaDataSource().size(); i++) {

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            ServiceTarget serviceTarget = phaseContext.getServiceTarget();
            ServiceVerificationHandler verificationHandler = new ServiceVerificationHandler();


            if (dataSources.getDataSource() != null && dataSources.getDataSource().size() > 0) {
                for (int i = 0; i < dataSources.getDataSource().size(); i++) {
                    DataSource ds = (DataSource)dataSources.getDataSource().get(i);
                    if (ds.isEnabled() && ds.getDriver() != null) {
                        try {
                            final String jndiName = Util.cleanJndiName(ds.getJndiName(), ds.isUseJavaContext());
                            LocalDataSourceService lds = new LocalDataSourceService(jndiName);
                            lds.getDataSourceConfigInjector().inject(buildDataSource(ds));
                            final String dsName = ds.getJndiName();
                            final PathAddress addr = getDataSourceAddress(dsName, deploymentUnit, false);
                            installManagementModel(ds, deploymentUnit, addr);
                            startDataSource(lds, jndiName, ds.getDriver(), serviceTarget, verificationHandler,
                                    getRegistration(false, deploymentUnit), getResource(dsName, false, deploymentUnit), dsName);
                        } catch (Exception e) {
                            throw ConnectorMessages.MESSAGES.exceptionDeployingDatasource(e, ds.getJndiName());
                        }
                    } else {
                        ConnectorLogger.DS_DEPLOYER_LOGGER.debugf("Ignoring: %s", ds.getJndiName());
                    }
                }
            }


            if (dataSources.getXaDataSource() != null && dataSources.getXaDataSource().size() > 0) {

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        final List<DataSources> dataSourcesList = context.getAttachmentList(DsXmlDeploymentParsingProcessor.DATA_SOURCES_ATTACHMENT_KEY);


        for (final DataSources dataSources : dataSourcesList) {
            if (dataSources.getDataSource() != null) {
                for (int i = 0; i < dataSources.getDataSource().size(); i++) {
                    DataSource ds = (DataSource)dataSources.getDataSource().get(i);
                    undeployDataSource(ds, context);
                }
            }
            if (dataSources.getXaDataSource() != null) {
               for (int i = 0; i < dataSources.getXaDataSource().size(); i++) {

View Full Code Here

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