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Changeset.java
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Changeset.java
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/*
* SonarQube
* Copyright (C) 2009-2016 SonarSource SA
* mailto:contact AT sonarsource DOT com
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.server.computation.scm;
import java.util.Objects;
import javax.annotation.CheckForNull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import static java.util.Objects.requireNonNull;
@Immutable
public final class Changeset {
private final String revision;
private final long date;
@CheckForNull
private final String author;
private Changeset(Builder builder) {
this.revision = builder.revision.intern();
this.author = builder.author == null ? null : builder.author.intern();
this.date = builder.date;
}
public static Builder newChangesetBuilder() {
return new Builder();
}
public static class Builder {
private String revision;
private Long date;
@CheckForNull
private String author;
private Builder() {
// prevents direct instantiation
}
public Builder setRevision(String revision) {
this.revision = checkRevision(revision);
return this;
}
public Builder setDate(Long date) {
this.date = checkDate(date);
return this;
}
public Builder setAuthor(@Nullable String author) {
this.author = author;
return this;
}
public Changeset build() {
checkRevision(revision);
checkDate(date);
return new Changeset(this);
}
private static String checkRevision(String revision) {
return requireNonNull(revision, "Revision cannot be null");
}
private static long checkDate(Long date) {
return requireNonNull(date, "Date cannot be null");
}
}
public String getRevision() {
return revision;
}
public long getDate() {
return date;
}
@CheckForNull
public String getAuthor() {
return author;
}
@Override
public boolean equals(@Nullable Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Changeset changeset = (Changeset) o;
return revision.equals(changeset.revision);
}
@Override
public int hashCode() {
return Objects.hash(revision);
}
@Override
public String toString() {
return "Changeset{" +
"revision='" + revision + '\'' +
", author='" + author + '\'' +
", date=" + date +
'}';
}
}