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/*
* Sonar, open source software quality management tool.
* Copyright (C) 2008-2012 SonarSource
* mailto:contact AT sonarsource DOT com
*
* Sonar is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* Sonar 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sonar; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.duplications.index;
import java.util.List;
import com.google.common.collect.ImmutableList;
/**
* Groups a set of related {@link ClonePart}s.
*/
public class CloneGroup {
private final ClonePart originPart;
private final int cloneLength;
private final List<ClonePart> parts;
/**
* Cache for hash code.
*/
private int hash;
public CloneGroup(int cloneLength, ClonePart origin, List<ClonePart> parts) {
this.cloneLength = cloneLength;
this.originPart = origin;
this.parts = ImmutableList.copyOf(parts);
}
public ClonePart getOriginPart() {
return originPart;
}
/**
* @return clone length in units (not in lines)
*/
public int getCloneUnitLength() {
return cloneLength;
}
public List<ClonePart> getCloneParts() {
return parts;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
for (ClonePart part : parts) {
builder.append(part).append(" - ");
}
builder.append(cloneLength);
return builder.toString();
}
/**
* Two groups are equal, if they have same length, same origins and contain same parts in same order.
*/
@Override
public boolean equals(Object object) {
if (!(object instanceof CloneGroup)) {
return false;
}
CloneGroup another = (CloneGroup) object;
if (another.cloneLength != cloneLength || parts.size() != another.parts.size()) {
return false;
}
if (!originPart.equals(another.originPart)) {
return false;
}
boolean result = true;
for (int i = 0; i < parts.size(); i++) {
result &= another.parts.get(i).equals(parts.get(i));
}
return result;
}
@Override
public int hashCode() {
int h = hash;
if (h == 0 && cloneLength != 0) {
for (ClonePart part : parts) {
h = 31 * h + part.hashCode();
}
h = 31 * h + originPart.hashCode();
h = 31 * h + cloneLength;
hash = h;
}
return h;
}
}
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