com.fitbur.assertj.util.diff.Patch Maven / Gradle / Ivy
/**
* Licensed 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.
*
* Copyright 2012-2016 the original author or authors.
*/
package com.fitbur.assertj.util.diff;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
/**
* Copy from https://code.google.com/p/java-diff-utils/.
*
* Describes the patch holding all deltas between the original and revised texts.
*
* @author Dmitry Naumenko
* @param The type of the compared elements in the 'lines'.
*/
public class Patch {
private List> deltas = new LinkedList<>();
/**
* Apply this patch to the given target
* @return the patched text
* @throws IllegalStateException if can't apply patch
*/
public List applyTo(List target) throws IllegalStateException {
List result = new LinkedList<>(target);
ListIterator> it = getDeltas().listIterator(deltas.size());
while (it.hasPrevious()) {
Delta delta = it.previous();
delta.applyTo(result);
}
return result;
}
/**
* Add the given delta to this patch
* @param delta the given delta
*/
public void addDelta(Delta delta) {
deltas.add(delta);
}
/**
* Get the list of computed deltas
* @return the deltas
*/
public List> getDeltas() {
Collections.sort(deltas, DeltaComparator.INSTANCE);
return deltas;
}
}