/*
 * 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.accumulo.core.client.impl;

import static com.google.common.base.Preconditions.checkArgument;

import java.util.Iterator;
import java.util.Map.Entry;

import org.apache.accumulo.core.Constants;
import org.apache.accumulo.core.client.Instance;
import org.apache.accumulo.core.client.Scanner;
import org.apache.accumulo.core.data.Key;
import org.apache.accumulo.core.data.Range;
import org.apache.accumulo.core.data.Value;
import org.apache.accumulo.core.security.Authorizations;
import org.apache.hadoop.io.Text;

public class OfflineScanner extends ScannerOptions implements Scanner {

  private int batchSize;
  private int timeOut;
  private Range range;

  private Instance instance;
  private Credentials credentials;
  private Authorizations authorizations;
  private Text tableId;

  public OfflineScanner(Instance instance, Credentials credentials, String tableId, Authorizations authorizations) {
    checkArgument(instance != null, "instance is null");
    checkArgument(credentials != null, "credentials is null");
    checkArgument(tableId != null, "tableId is null");
    checkArgument(authorizations != null, "authorizations is null");
    this.instance = instance;
    this.credentials = credentials;
    this.tableId = new Text(tableId);
    this.range = new Range((Key) null, (Key) null);

    this.authorizations = authorizations;

    this.batchSize = Constants.SCAN_BATCH_SIZE;
    this.timeOut = Integer.MAX_VALUE;
  }

  @Deprecated
  @Override
  public void setTimeOut(int timeOut) {
    this.timeOut = timeOut;
  }

  @Deprecated
  @Override
  public int getTimeOut() {
    return timeOut;
  }

  @Override
  public void setRange(Range range) {
    this.range = range;
  }

  @Override
  public Range getRange() {
    return range;
  }

  @Override
  public void setBatchSize(int size) {
    this.batchSize = size;
  }

  @Override
  public int getBatchSize() {
    return batchSize;
  }

  @Override
  public void enableIsolation() {

  }

  @Override
  public void disableIsolation() {

  }

  @Override
  public Iterator<Entry<Key,Value>> iterator() {
    return new OfflineIterator(this, instance, credentials, authorizations, tableId, range);
  }

  @Override
  public Authorizations getAuthorizations() {
    return authorizations;
  }

  @Override
  public long getReadaheadThreshold() {
    throw new UnsupportedOperationException();
  }

  @Override
  public void setReadaheadThreshold(long batches) {
    throw new UnsupportedOperationException();
  }

}