FieldTypeDouble.java
/*
* 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.commons.imaging.formats.tiff.fieldtypes;
import java.nio.ByteOrder;
import java.util.Arrays;
import org.apache.commons.imaging.ImagingException;
import org.apache.commons.imaging.common.Allocator;
import org.apache.commons.imaging.common.ByteConversions;
import org.apache.commons.imaging.formats.tiff.TiffField;
public class FieldTypeDouble extends AbstractFieldType {
public FieldTypeDouble(final int type, final String name) {
super(type, name, 8);
}
@Override
public Object getValue(final TiffField entry) {
final byte[] bytes = entry.getByteArrayValue();
if (entry.getCount() == 1) {
return ByteConversions.toDouble(bytes, entry.getByteOrder());
}
return ByteConversions.toDoubles(bytes, entry.getByteOrder());
}
@Override
public byte[] writeData(final Object o, final ByteOrder byteOrder) throws ImagingException {
if (o instanceof Double) {
return ByteConversions.toBytes(((Double) o).doubleValue(), byteOrder);
}
if (o instanceof double[]) {
return ByteConversions.toBytes((double[]) o, byteOrder);
}
if (!(o instanceof Double[])) {
throw new ImagingException("Invalid data", o);
}
final double[] values = Allocator.doubleArray(((Double[]) o).length);
Arrays.setAll(values, i -> ((Double[]) o)[i].doubleValue());
return ByteConversions.toBytes(values, byteOrder);
}
}