MondrianFileSchemaModel.java

/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License, version 2 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/gpl-2.0.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
*
* Copyright 2006 - 2016 Pentaho Corporation.  All rights reserved.
*/

package org.pentaho.aggdes.ui.ext.impl;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.zip.CRC32;
import java.util.zip.CheckedInputStream;

import org.pentaho.aggdes.ui.model.SchemaModel;
import org.pentaho.aggdes.ui.util.Messages;

public class MondrianFileSchemaModel implements SchemaModel {

  private long schemaChecksum;

  private String mondrianSchemaFilename;
  
  private String cubeName;
  
  public String getMondrianSchemaFilename() {
    return mondrianSchemaFilename;
  }

  public void setMondrianSchemaFilename(String mondrianSchemaFilename) {
    this.mondrianSchemaFilename = mondrianSchemaFilename;
  }
  
  public long recalculateSchemaChecksum() {
    if (getMondrianSchemaFilename() != null) {
      try {
        CheckedInputStream cis = new CheckedInputStream(new FileInputStream(getMondrianSchemaFilename()), new CRC32());
        byte[] buf = new byte[1024];
        while(cis.read(buf) >= 0) {
        }
        return cis.getChecksum().getValue();
      } catch (IOException e) {
          e.printStackTrace();
      }
    }
    return -1;
  }
  
  public void setSchemaChecksum(long schemaChecksum) {
    this.schemaChecksum = schemaChecksum;
  }
  
  public long getSchemaChecksum() {
    return schemaChecksum;
  }

  public String getCubeName() {
    return cubeName;
  }

  public void setCubeName(String cubeName) {
    this.cubeName = cubeName;
  }

  public boolean schemaExists() {
    return mondrianSchemaFilename != null && new File(mondrianSchemaFilename).exists();
  }

  public String getSchemaDoesNotExistErrorMessage() {
    return Messages.getString("MondrianFileSchemaModel.ErrorSchemaFileDoesNotExist", mondrianSchemaFilename);
  }
}