ResourcePath.java
/**
* Portions of this software was developed by employees of the National Institute
* of Standards and Technology (NIST), an agency of the Federal Government and is
* being made available as a public service. Pursuant to title 17 United States
* Code Section 105, works of NIST employees are not subject to copyright
* protection in the United States. This software may be subject to foreign
* copyright. Permission in the United States and in foreign countries, to the
* extent that NIST may hold copyright, to use, copy, modify, create derivative
* works, and distribute this software and its documentation without fee is hereby
* granted on a non-exclusive basis, provided that this notice and disclaimer
* of warranty appears in all copies.
*
* THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
* EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
* THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
* INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
* SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT
* SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
* INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
* OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
* CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
* PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
* OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
*/
package gov.nist.secauto.swid.builder.resource;
import gov.nist.secauto.swid.builder.util.Util;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
final class ResourcePath implements Comparable<ResourcePath> {
private final String path;
private final List<String> segments;
public ResourcePath(String path) {
Util.requireNonEmpty(path, path);
String[] segments = PathRelativizer.URI_SEPERATOR_PATTERN.split(path);
List<String> segmentsList = new ArrayList<>(segments.length);
for (String segment : segments) {
segmentsList.add(segment);
}
this.path = path;
this.segments = Collections.unmodifiableList(segmentsList);
}
public ResourcePath(String[] path) {
this(Arrays.asList(path));
}
public ResourcePath(List<String> path) {
this.path = String.join(PathRelativizer.URI_SEPERATOR, path);
this.segments = Collections.unmodifiableList(path);
}
@Override
public int hashCode() {
return segments.hashCode();
}
@Override
public boolean equals(Object obj) {
return segments.equals(obj);
}
@Override
public int compareTo(ResourcePath that) {
List<String> thisSegments = getSegments();
List<String> thatSegments = that.getSegments();
int retval = 0;
for (int i = 0; i < thisSegments.size() && i < thatSegments.size(); i++) {
String thisSegment = thisSegments.get(i);
String thatSegment = thatSegments.get(i);
if ((retval = thisSegment.compareTo(thatSegment)) != 0) {
break;
}
}
if (retval == 0) {
retval = thisSegments.size() - thatSegments.size();
}
return retval;
}
public String getPath() {
return path;
}
public List<String> getSegments() {
return segments;
}
}