solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/BinFileDataSource.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.solr.handler.dataimport;

import static org.apache.solr.handler.dataimport.DataImportHandlerException.wrapAndThrow;
import static org.apache.solr.handler.dataimport.DataImportHandlerException.SEVERE;

import java.io.InputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Properties;
/**
 * <p>
 * A DataSource which reads from local files
 * </p>
 * <p>
 * Refer to <a
 * href="http://wiki.apache.org/solr/DataImportHandler">http://wiki.apache.org/solr/DataImportHandler</a>
 * for more details.
 * </p>
 * <p>
 * <b>This API is experimental and may change in the future.</b>
 *
 * @since solr 3.1
 */

public class BinFileDataSource extends DataSource<InputStream>{
   protected String basePath;
  @Override
  public void init(Context context, Properties initProps) {
     basePath = initProps.getProperty(FileDataSource.BASE_PATH);
  }

  @Override
  public InputStream getData(String query) {
    File f = FileDataSource.getFile(basePath,query);
    try {
      return new FileInputStream(f);
    } catch (FileNotFoundException e) {
      wrapAndThrow(SEVERE,e,"Unable to open file "+f.getAbsolutePath());
      return null;
    }
  }

  @Override
  public void close() {

  }
}