01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: /* $Id: ArrayAddPropertyMerger.java 426584 2006-07-28 16:01:47Z jeremias $ */
19:
20: package org.apache.xmlgraphics.xmp.merge;
21:
22: import org.apache.xmlgraphics.xmp.Metadata;
23: import org.apache.xmlgraphics.xmp.XMPArray;
24: import org.apache.xmlgraphics.xmp.XMPArrayType;
25: import org.apache.xmlgraphics.xmp.XMPProperty;
26:
27: /**
28: * Merges properties by adding up all items from both ends into one SEQ array.
29: */
30: public class ArrayAddPropertyMerger implements PropertyMerger {
31:
32: /**
33: * @see org.apache.xmlgraphics.xmp.merge.PropertyMerger#merge(
34: * org.apache.xmlgraphics.xmp.XMPProperty, org.apache.xmlgraphics.xmp.Metadata)
35: */
36: public void merge(XMPProperty sourceProp, Metadata target) {
37: XMPProperty existing = target.getProperty(sourceProp.getName());
38: if (existing == null) {
39: //simply copy over
40: target.setProperty(sourceProp);
41: } else {
42: existing.convertSimpleValueToArray(XMPArrayType.SEQ);
43: XMPArray array = existing.getArrayValue();
44: XMPArray otherArray = sourceProp.getArrayValue();
45: if (otherArray == null) {
46: if (sourceProp.getXMLLang() != null) {
47: array.add(sourceProp.getValue().toString(),
48: sourceProp.getXMLLang());
49: } else {
50: array.add(sourceProp.getValue());
51: }
52: } else {
53: //TODO should be refined (xml:lang etc.)
54: for (int i = 0, c = otherArray.getSize(); i < c; i++) {
55: array.add(otherArray.getValue(i));
56: }
57: }
58: }
59: }
60:
61: }
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