001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.imaging.formats.tiff.fieldtypes;
018
019import java.nio.ByteOrder;
020import java.util.Arrays;
021
022import org.apache.commons.imaging.ImagingException;
023import org.apache.commons.imaging.common.Allocator;
024import org.apache.commons.imaging.common.ByteConversions;
025import org.apache.commons.imaging.formats.tiff.TiffField;
026
027public class FieldTypeDouble extends AbstractFieldType {
028    public FieldTypeDouble(final int type, final String name) {
029        super(type, name, 8);
030    }
031
032    @Override
033    public Object getValue(final TiffField entry) {
034        final byte[] bytes = entry.getByteArrayValue();
035        if (entry.getCount() == 1) {
036            return ByteConversions.toDouble(bytes, entry.getByteOrder());
037        }
038        return ByteConversions.toDoubles(bytes, entry.getByteOrder());
039    }
040
041    @Override
042    public byte[] writeData(final Object o, final ByteOrder byteOrder) throws ImagingException {
043        if (o instanceof Double) {
044            return ByteConversions.toBytes(((Double) o).doubleValue(), byteOrder);
045        }
046        if (o instanceof double[]) {
047            return ByteConversions.toBytes((double[]) o, byteOrder);
048        }
049        if (!(o instanceof Double[])) {
050            throw new ImagingException("Invalid data", o);
051        }
052        final double[] values = Allocator.doubleArray(((Double[]) o).length);
053        Arrays.setAll(values, i -> ((Double[]) o)[i].doubleValue());
054        return ByteConversions.toBytes(values, byteOrder);
055    }
056
057}