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/*
 * Copyright (c) 1998-2018 University Corporation for Atmospheric Research/Unidata
 * See LICENSE for license information.
 */

package ucar.ma2;

/**
 * A "fast" iterator that can be used when the data is in canonical order.
 *
 * @author caron
 */
/* the idea is IteratorFast can do the iteration without an Index */
public class IteratorFast implements IndexIterator {

  private int currElement = -1;
  private final Array maa;
  private long size;

  IteratorFast(long size, Array maa) {
    this.size = size;
    this.maa = maa;
  }

  public boolean hasNext() {
    return currElement < size - 1;
  }

  public boolean hasMore(int howMany) {
    return currElement < size - howMany;
  }

  private Index counter; // usually not used

  public String toString() {
    if (counter == null || counter.toString().equals("")) // not sure about the second condition
      counter = Index.factory(maa.getShape());
    counter.setCurrentCounter(currElement);
    return counter.toString();
  }

  public int[] getCurrentCounter() {
    if (counter == null) // or counter == "" ?
      counter = Index.factory(maa.getShape());
    counter.setCurrentCounter(currElement);
    return counter.current;
  }

  public double getDoubleCurrent() {
    return maa.getDouble(currElement);
  }

  public double getDoubleNext() {
    return maa.getDouble(++currElement);
  }

  public void setDoubleCurrent(double val) {
    maa.setDouble(currElement, val);
  }

  public void setDoubleNext(double val) {
    maa.setDouble(++currElement, val);
  }

  public float getFloatCurrent() {
    return maa.getFloat(currElement);
  }

  public float getFloatNext() {
    return maa.getFloat(++currElement);
  }

  public void setFloatCurrent(float val) {
    maa.setFloat(currElement, val);
  }

  public void setFloatNext(float val) {
    maa.setFloat(++currElement, val);
  }

  public long getLongCurrent() {
    return maa.getLong(currElement);
  }

  public long getLongNext() {
    return maa.getLong(++currElement);
  }

  public void setLongCurrent(long val) {
    maa.setLong(currElement, val);
  }

  public void setLongNext(long val) {
    maa.setLong(++currElement, val);
  }

  public int getIntCurrent() {
    return maa.getInt(currElement);
  }

  public int getIntNext() {
    return maa.getInt(++currElement);
  }

  public void setIntCurrent(int val) {
    maa.setInt(currElement, val);
  }

  public void setIntNext(int val) {
    maa.setInt(++currElement, val);
  }

  public short getShortCurrent() {
    return maa.getShort(currElement);
  }

  public short getShortNext() {
    return maa.getShort(++currElement);
  }

  public void setShortCurrent(short val) {
    maa.setShort(currElement, val);
  }

  public void setShortNext(short val) {
    maa.setShort(++currElement, val);
  }

  public byte getByteCurrent() {
    return maa.getByte(currElement);
  }

  public byte getByteNext() {
    return maa.getByte(++currElement);
  }

  public void setByteCurrent(byte val) {
    maa.setByte(currElement, val);
  }

  public void setByteNext(byte val) {
    maa.setByte(++currElement, val);
  }

  public char getCharCurrent() {
    return maa.getChar(currElement);
  }

  public char getCharNext() {
    return maa.getChar(++currElement);
  }

  public void setCharCurrent(char val) {
    maa.setChar(currElement, val);
  }

  public void setCharNext(char val) {
    maa.setChar(++currElement, val);
  }

  public boolean getBooleanCurrent() {
    return maa.getBoolean(currElement);
  }

  public boolean getBooleanNext() {
    return maa.getBoolean(++currElement);
  }

  public void setBooleanCurrent(boolean val) {
    maa.setBoolean(currElement, val);
  }

  public void setBooleanNext(boolean val) {
    maa.setBoolean(++currElement, val);
  }

  public Object getObjectCurrent() {
    return maa.getObject(currElement);
  }

  public Object getObjectNext() {
    return maa.getObject(++currElement);
  }

  public void setObjectCurrent(Object val) {
    maa.setObject(currElement, val);
  }

  public void setObjectNext(Object val) {
    maa.setObject(++currElement, val);
  }

  public Object next() {
    return maa.getObject(++currElement);
  }
}