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A library to read and give access to Tiff files.
/**
* Metadata.java
*
* This program is free software: you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version; or, at your choice, under the terms of the
* Mozilla Public License, v. 2.0. SPDX GPL-3.0+ or MPL-2.0+.
*
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License and the Mozilla Public License for more details.
*
*
* You should have received a copy of the GNU General Public License and the Mozilla Public License
* along with this program. If not, see http://www.gnu.org/licenses/ and at
* http://mozilla.org/MPL/2.0 .
*
*
* NB: for the © statement, include Easy Innova SL or other company/Person contributing the code.
*
*
* © 2015 Easy Innova, SL
*
*
* @author Víctor Muñoz Solà
* @version 1.0
* @since 10/6/2015
*
*/
package com.easyinnova.tiff.model;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Set;
/**
* A dictinary of all the metadata contained in the tiff file.
*/
public class Metadata {
/** The metadata. */
private HashMap metadata;
/**
* Instantiates a new metadata.
*/
public Metadata() {
metadata = new HashMap();
}
/**
* Adds a metadata value to the dictionary.
*
* @param name the name
* @param value the value
*/
public void add(String name, TiffObject value, String path, String schema) {
if (!metadata.containsKey(name)) {
metadata.put(name, new MetadataObject());
}
metadata.get(name).getObjectList().add(value);
metadata.get(name).setPath(path);
metadata.get(name).setSchema(schema);
}
/**
* Adds a metadata value to the dictionary.
*
* @param name the name
* @param value the value
*/
public void add(String name, TiffObject value) {
if (!metadata.containsKey(name)) {
metadata.put(name, new MetadataObject());
}
metadata.get(name).getObjectList().add(value);
}
/**
* Adds a metadata value to the dictionary.
*
* @param name the name
* @param value the value
* @param isDC the is dublin core
*/
public void add(String name, TiffObject value, boolean isDC, String path) {
if (!metadata.containsKey(name)) {
metadata.put(name, new MetadataObject());
metadata.get(name).setIsDublinCore(isDC);
metadata.get(name).setPath(path);
}
metadata.get(name).getObjectList().add(value);
}
/**
* Check if the dictionary contains the given metadata.
*
* @param name the name
* @return true, if successful
*/
public boolean contains(String name) {
return metadata.containsKey(name);
}
/**
* Gets a metadata value, returning the appropriate value when multiple are found.
*
* @param name the name of the metadata.
* @return the tiff object with the value of the metadata.
*/
public TiffObject get(String name) {
TiffObject result = null;
String container = null;
ArrayList found = new ArrayList<>();
if (contains(name)) {
// Find objects with this exact name
if (metadata.get(name).getObjectList().size() == 1) {
found.add(getFirst(name));
} else {
for (TiffObject to : metadata.get(name).getObjectList()) {
found.add(to);
}
}
} else {
// Find objects with similar or equivalent name
for (String key : metadata.keySet()) {
boolean similar = key.toLowerCase().equals(name.toLowerCase());
if (!similar) similar = name.toLowerCase().equals("date") && key.toLowerCase().equals("datetime");
if (!similar) similar = name.toLowerCase().equals("date") && key.toLowerCase().equals("creatordate");
if (!similar) similar = name.toLowerCase().equals("description") && key.toLowerCase().equals("imagedescription");
if (!similar) similar = name.toLowerCase().equals("creator") && key.toLowerCase().equals("artist");
if (!similar) similar = name.toLowerCase().equals("creator") && key.toLowerCase().equals("creatortool");
if (similar) {
for (TiffObject to : metadata.get(key).getObjectList()) {
found.add(to);
}
}
}
}
// Return the most prioritary result
if (found.size()==1) {
result = found.get(0);
} else {
for (TiffObject to : found) {
if (result == null) {
result = to;
container = to.getContainer();
} else if (to.getContainer() != null) {
// Preferences in (descending) order: EXIF, XMP, IPTC, Tiff tag
if (container == null || to.getContainer().equals("EXIF")
|| (to.getContainer().equals("XMP") && container.equals("IPTC"))) {
result = to;
container = to.getContainer();
}
}
}
}
return result;
}
/**
* Gets the first metadata object of the fiven metadata name.
*
* @param name the name
* @return the first
*/
private TiffObject getFirst(String name) {
return metadata.get(name).getObjectList().get(0);
}
/**
* Gets the list of objects of the given metadata name.
*
* @param name the name
* @return the list
*/
public List getList(String name) {
return metadata.get(name).getObjectList();
}
/**
* Gets the metadata object.
*
* @param name the name
* @return the metadata object
*/
public MetadataObject getMetadataObject(String name) {
return metadata.get(name);
}
/**
* Get the set of metadata names.
*
* @return the sets the
*/
public Set keySet() {
return metadata.keySet();
}
/**
* Adds a complete dictionary to the current one.
*
* @param meta the metadata dictionary to add
*/
public void addMetadata(Metadata meta) {
for (String k : meta.keySet()) {
for (TiffObject to : meta.getList(k)) {
add(k, to, meta.getMetadataObject(k).isDublinCore(), meta.getMetadataObject(k).getPath());
}
}
}
}