Package com.orientechnologies.orient.core.index

Source Code of com.orientechnologies.orient.core.index.OIndexManagerShared

/*
* Copyright 1999-2010 Luca Garulli (l.garulli--at--orientechnologies.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.orientechnologies.orient.core.index;

import java.util.Collection;

import com.orientechnologies.common.listener.OProgressListener;
import com.orientechnologies.orient.core.db.record.ODatabaseRecord;
import com.orientechnologies.orient.core.db.record.ORecordElement;
import com.orientechnologies.orient.core.db.record.ORecordTrackedSet;
import com.orientechnologies.orient.core.id.ORID;
import com.orientechnologies.orient.core.metadata.schema.OType;
import com.orientechnologies.orient.core.record.impl.ODocument;

public class OIndexManagerShared extends OIndexManagerAbstract {
  public OIndexManagerShared(final ODatabaseRecord iDatabase) {
    super(iDatabase);
  }

  public synchronized OIndex getIndex(final String iName) {
    final OIndex index = indexes.get(iName.toLowerCase());
    return index != null ? new OIndexUser(getDatabase(), getIndexInstance(index)) : null;
  }

  public synchronized OIndex getIndexInternal(final String iName) {
    final OIndex index = indexes.get(iName.toLowerCase());
    return getIndexInstance(index);
  }

  public synchronized OIndex getIndex(final ORID iRID) {
    for (OIndex idx : indexes.values()) {
      if (idx.getIdentity().equals(iRID)) {
        return getIndexInstance(idx);
      }
    }
    return null;
  }

  public synchronized OIndex createIndex(final String iName, final String iType, final OType iKeyType,
      final int[] iClusterIdsToIndex, OIndexCallback iCallback, final OProgressListener iProgressListener, final boolean iAutomatic) {

    final OIndexInternal index = OIndexFactory.instance().newInstance(getDatabase(), iType);
    index.setCallback(iCallback);

    index.create(iName, iKeyType, getDatabase(), defaultClusterName, iClusterIdsToIndex, iProgressListener, iAutomatic);
    indexes.put(iName.toLowerCase(), index);

    setDirty();
    save();

    return getIndexInstance(index);
  }

  public synchronized OIndexManager dropIndex(final String iIndexName) {
    final OIndex idx = indexes.remove(iIndexName.toLowerCase());
    if (idx != null) {
      idx.delete();
      setDirty();
      save();
    }
    return this;
  }

  public synchronized OIndexManager setDirty() {
    document.setDirty();
    return this;
  }

  @Override
  protected synchronized void fromStream() {
    final Collection<ODocument> idxs = document.field(CONFIG_INDEXES);

    if (idxs != null) {
      OIndexInternal index;
      for (ODocument d : idxs) {
        index = OIndexFactory.instance().newInstance(getDatabase(), (String) d.field(OIndexInternal.CONFIG_TYPE));
        d.setDatabase(getDatabase());
        ((OIndexInternal) index).loadFromConfiguration(d);
        indexes.put(index.getName().toLowerCase(), index);
      }
    }

  }

  /**
   * Binds POJO to ODocument.
   */
  @Override
  public ODocument toStream() {
    document.setStatus(ORecordElement.STATUS.UNMARSHALLING);

    try {
      ORecordTrackedSet idxs = new ORecordTrackedSet(document);

      for (OIndexInternal i : indexes.values()) {
        idxs.add(i.updateConfiguration());
      }
      document.field(CONFIG_INDEXES, idxs, OType.EMBEDDEDSET);

    } finally {
      document.setStatus(ORecordElement.STATUS.LOADED);
    }
    document.setDirty();

    return document;
  }

  protected synchronized OIndex getIndexInstance(final OIndex iIndex) {
    return iIndex;
  }
}
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