    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}