org.apache.tika.metadata.serialization.PrettyMetadataKeyComparator Maven / Gradle / Ivy
package org.apache.tika.metadata.serialization;
/*
* 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.
*/
public class PrettyMetadataKeyComparator implements java.util.Comparator {
@Override
public int compare(String s1, String s2) {
if (s1 == null) {
return 1;
} else if (s2 == null) {
return -1;
}
//this is stinky. This should reference RecursiveParserWrapper.TIKA_CONTENT
//but that would require making core a dependency of serialization...
//do we want to do that?
if (s1.equals("tika:content")) {
if (s2.equals("tika:content")) {
return 0;
}
return 2;
} else if (s2.equals("tika:content")) {
return -2;
}
//do we want to lowercase?
return s1.compareTo(s2);
}
}