| /* |
| * 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 |
| * |
| * https://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.avro.reflect; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| |
| import org.apache.avro.io.Encoder; |
| import org.apache.avro.io.ResolvingDecoder; |
| |
| /** |
| * Helper class to provide native array access whenever possible. It is much |
| * faster than using reflection-based operations on arrays. |
| */ |
| class ArrayAccessor { |
| |
| static void writeArray(boolean[] data, Encoder out) throws IOException { |
| int size = data.length; |
| out.setItemCount(size); |
| for (boolean datum : data) { |
| out.startItem(); |
| out.writeBoolean(datum); |
| } |
| } |
| |
| // short, and char arrays are upcast to avro int |
| |
| static void writeArray(short[] data, Encoder out) throws IOException { |
| int size = data.length; |
| out.setItemCount(size); |
| for (short datum : data) { |
| out.startItem(); |
| out.writeInt(datum); |
| } |
| } |
| |
| static void writeArray(char[] data, Encoder out) throws IOException { |
| int size = data.length; |
| out.setItemCount(size); |
| for (char datum : data) { |
| out.startItem(); |
| out.writeInt(datum); |
| } |
| } |
| |
| static void writeArray(int[] data, Encoder out) throws IOException { |
| int size = data.length; |
| out.setItemCount(size); |
| for (int datum : data) { |
| out.startItem(); |
| out.writeInt(datum); |
| } |
| } |
| |
| static void writeArray(long[] data, Encoder out) throws IOException { |
| int size = data.length; |
| out.setItemCount(size); |
| for (long datum : data) { |
| out.startItem(); |
| out.writeLong(datum); |
| } |
| } |
| |
| static void writeArray(float[] data, Encoder out) throws IOException { |
| int size = data.length; |
| out.setItemCount(size); |
| for (float datum : data) { |
| out.startItem(); |
| out.writeFloat(datum); |
| } |
| } |
| |
| static void writeArray(double[] data, Encoder out) throws IOException { |
| int size = data.length; |
| out.setItemCount(size); |
| for (double datum : data) { |
| out.startItem(); |
| out.writeDouble(datum); |
| } |
| } |
| |
| static Object readArray(Object array, Class<?> elementType, long l, ResolvingDecoder in) throws IOException { |
| if (elementType == int.class) |
| return readArray((int[]) array, l, in); |
| if (elementType == long.class) |
| return readArray((long[]) array, l, in); |
| if (elementType == float.class) |
| return readArray((float[]) array, l, in); |
| if (elementType == double.class) |
| return readArray((double[]) array, l, in); |
| if (elementType == boolean.class) |
| return readArray((boolean[]) array, l, in); |
| if (elementType == char.class) |
| return readArray((char[]) array, l, in); |
| if (elementType == short.class) |
| return readArray((short[]) array, l, in); |
| return null; |
| } |
| |
| static boolean[] readArray(boolean[] array, long l, ResolvingDecoder in) throws IOException { |
| int index = 0; |
| do { |
| int limit = index + (int) l; |
| if (array.length < limit) { |
| array = Arrays.copyOf(array, limit); |
| } |
| while (index < limit) { |
| array[index] = in.readBoolean(); |
| index++; |
| } |
| } while ((l = in.arrayNext()) > 0); |
| return array; |
| } |
| |
| static int[] readArray(int[] array, long l, ResolvingDecoder in) throws IOException { |
| int index = 0; |
| do { |
| int limit = index + (int) l; |
| if (array.length < limit) { |
| array = Arrays.copyOf(array, limit); |
| } |
| while (index < limit) { |
| array[index] = in.readInt(); |
| index++; |
| } |
| } while ((l = in.arrayNext()) > 0); |
| return array; |
| } |
| |
| static short[] readArray(short[] array, long l, ResolvingDecoder in) throws IOException { |
| int index = 0; |
| do { |
| int limit = index + (int) l; |
| if (array.length < limit) { |
| array = Arrays.copyOf(array, limit); |
| } |
| while (index < limit) { |
| array[index] = (short) in.readInt(); |
| index++; |
| } |
| } while ((l = in.arrayNext()) > 0); |
| return array; |
| } |
| |
| static char[] readArray(char[] array, long l, ResolvingDecoder in) throws IOException { |
| int index = 0; |
| do { |
| int limit = index + (int) l; |
| if (array.length < limit) { |
| array = Arrays.copyOf(array, limit); |
| } |
| while (index < limit) { |
| array[index] = (char) in.readInt(); |
| index++; |
| } |
| } while ((l = in.arrayNext()) > 0); |
| return array; |
| } |
| |
| static long[] readArray(long[] array, long l, ResolvingDecoder in) throws IOException { |
| int index = 0; |
| do { |
| int limit = index + (int) l; |
| if (array.length < limit) { |
| array = Arrays.copyOf(array, limit); |
| } |
| while (index < limit) { |
| array[index] = in.readLong(); |
| index++; |
| } |
| } while ((l = in.arrayNext()) > 0); |
| return array; |
| } |
| |
| static float[] readArray(float[] array, long l, ResolvingDecoder in) throws IOException { |
| int index = 0; |
| do { |
| int limit = index + (int) l; |
| if (array.length < limit) { |
| array = Arrays.copyOf(array, limit); |
| } |
| while (index < limit) { |
| array[index] = in.readFloat(); |
| index++; |
| } |
| } while ((l = in.arrayNext()) > 0); |
| return array; |
| } |
| |
| static double[] readArray(double[] array, long l, ResolvingDecoder in) throws IOException { |
| int index = 0; |
| do { |
| int limit = index + (int) l; |
| if (array.length < limit) { |
| array = Arrays.copyOf(array, limit); |
| } |
| while (index < limit) { |
| array[index] = in.readDouble(); |
| index++; |
| } |
| } while ((l = in.arrayNext()) > 0); |
| return array; |
| } |
| |
| } |