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/***************************************************************************
 * Copyright (c) 2004 - 2008 Eike Stepper, Germany.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *    Eike Stepper - initial API and implementation
 **************************************************************************/
package org.eclipse.emf.internal.cdo.protocol;

import org.eclipse.emf.cdo.common.CDODataInput;
import org.eclipse.emf.cdo.common.CDODataOutput;
import org.eclipse.emf.cdo.common.CDOProtocolConstants;
import org.eclipse.emf.cdo.common.model.CDOPackage;

import java.io.IOException;

/**
 * @author Eike Stepper
 */
public class LoadPackageRequest extends CDOClientRequest<String>
{
  private CDOPackage cdoPackage;

  private boolean onlyEcore;

  public LoadPackageRequest(CDOClientProtocol protocol, CDOPackage cdoPackage, boolean onlyEcore)
  {
    super(protocol);
    this.cdoPackage = cdoPackage;
    this.onlyEcore = onlyEcore;
  }

  @Override
  protected short getSignalID()
  {
    return CDOProtocolConstants.SIGNAL_LOAD_PACKAGE;
  }

  @Override
  protected void requesting(CDODataOutput out) throws IOException
  {
    out.writeCDOPackageURI(cdoPackage.getPackageURI());
    out.writeBoolean(onlyEcore);
  }

  @Override
  protected String confirming(CDODataInput in) throws IOException
  {
    if (onlyEcore)
    {
      return in.readString();
    }

    in.readCDOPackage(cdoPackage);
    return null;
  }
}

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