OPENDJ-1602 New pluggable storage based backend

Jean-Noel Rouvignac

19.40.2014 18468f4caef824f2497e0008974df0aec5431fd4

OPENDJ-1602 New pluggable storage based backend

Fixed the volume creation problem due to the creation of JECompressedSchema.
For now, we are using a single volume for all data in PersistIt.


PersistItStorage.java:
Change the code to support a single volume.

 opendj-sdk/opendj3-server-dev/src/server/org/opends/server/backends/persistit/PersistItStorage.java

@@ -31,8 +31,6 @@
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

import org.forgerock.opendj.ldap.ByteSequence;
import org.forgerock.opendj.ldap.ByteString;
@@ -46,7 +44,6 @@
import org.opends.server.backends.pluggable.spi.UpdateFunction;
import org.opends.server.backends.pluggable.spi.WriteOperation;
import org.opends.server.backends.pluggable.spi.WriteableStorage;
import org.opends.server.types.DN;

import com.persistit.Exchange;
import com.persistit.Key;
@@ -70,7 +67,7 @@
        @Override
        public void createTree(TreeName treeName) {
            try {
                final Tree tree = getVolume(treeName).getTree(treeName.toString(), true);
                final Tree tree = volume.getTree(treeName.toString(), true);
                trees.put(treeName, tree);
            } catch (PersistitException e) {
                throw new StorageRuntimeException(e);
@@ -239,7 +236,7 @@
        @Override
        public void truncateTree(TreeName treeName) {
            try {
                getVolume(treeName).truncate();
                volume.truncate();
            } catch (PersistitException e) {
                throw new StorageRuntimeException(e);
            }
@@ -356,20 +353,14 @@
    }



    private File backendDirectory;
    private PersistitBackendCfg config;
    private Persistit db;
    private final ConcurrentMap<String, Volume> volumes = new ConcurrentHashMap<String, Volume>();
    private Volume volume;
    private Properties properties;

    private Volume getVolume(TreeName treeName) {
        return volumes.get(treeName.getBaseDN());
    }

    @Override
  public void initialize(PersistitBackendCfg cfg)
  {
    public void initialize(PersistitBackendCfg cfg) {
    this.config = cfg;
    this.backendDirectory = new File(getFileForPath(config.getDBDirectory()),
        config.getBackendId());
@@ -380,17 +371,14 @@
        properties.setProperty("logfile", "${logpath}/dj_${timestamp}.log");
        properties.setProperty("buffer.count.16384", "64K");
        properties.setProperty("journalpath", "${datapath}/dj_journal");
        int i = 1;
        for (DN baseDN : config.getBaseDN()) {
            // TODO use VolumeSpecification  Configuration.setVolumeList()?
            properties.setProperty("volume." + i++,
                "${datapath}/" + toSuffixName(baseDN.toString())

        properties.setProperty("volume.1",
            "${datapath}/dj" 
                    + ",create,pageSize:16K"
                    + ",initialSize:50M"
                    + ",extensionSize:1M"
                    + ",maximumSize:10G");
        }
    }

    /**
     * Replace persistit reserved comma character with an underscore character.
@@ -404,10 +392,7 @@
        try {
            db = new Persistit(properties);
            db.initialize();
            for (DN baseDN : config.getBaseDN()) {
                final String volumeName = toSuffixName(baseDN.toString());
                volumes.put(volumeName, db.loadVolume(volumeName));
            }
            volume = db.loadVolume("dj");
        } catch (PersistitException e) {
            throw new StorageRuntimeException(e);
        }
@@ -497,7 +482,7 @@
    }

    private Exchange getExchange0(TreeName treeName, boolean create) throws PersistitException {
        return db.getExchange(getVolume(treeName), treeName.toString(), create);
        return db.getExchange(volume, treeName.toString(), create);
    }

    @Override