path: root/org.eclipse.egit.ui/src/org/eclipse/egit/ui/internal/reflog/ReflogItem.java

/*******************************************************************************
 * Copyright (C) 2017, Thomas Wolf <thomas.wolf@paranor.ch>
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *******************************************************************************/
package org.eclipse.egit.ui.internal.reflog;

import java.util.Objects;

import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.egit.core.internal.IRepositoryObject;
import org.eclipse.egit.ui.internal.reflog.ReflogViewContentProvider.ReflogInput;
import org.eclipse.jgit.lib.CheckoutEntry;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.ReflogEntry;
import org.eclipse.jgit.lib.Repository;

/**
 * A DTO for {@link ReflogEntry} to use as tree elements in the reflog view.
 * Also adapts to the repository the item was loaded from.
 */
public class ReflogItem implements ReflogEntry, IAdaptable, IRepositoryObject {

	private final ReflogEntry entry;

	private final ReflogInput input;

	ReflogItem(ReflogInput input, ReflogEntry entry) {
		this.entry = entry;
		this.input = input;
	}

	@SuppressWarnings("unchecked")
	@Override
	public Object getAdapter(Class adapter) {
		// TODO generify once EGit base version is Eclipse 4.5
		if (adapter.isInstance(this)) {
			return this;
		} else if (Repository.class.equals(adapter)) {
			return getRepository();
		}
		return null;
	}

	@Override
	public ObjectId getOldId() {
		return entry.getOldId();
	}

	@Override
	public ObjectId getNewId() {
		return entry.getNewId();
	}

	@Override
	public PersonIdent getWho() {
		return entry.getWho();
	}

	@Override
	public String getComment() {
		return entry.getComment();
	}

	@Override
	public CheckoutEntry parseCheckout() {
		return entry.parseCheckout();
	}

	@Override
	public boolean equals(Object obj) {
		if (obj == this) {
			return true;
		}
		if (!(obj instanceof ReflogItem)) {
			return false;
		}
		ReflogItem other = (ReflogItem) obj;
		return input == other.input
				&& Objects.equals(getNewId(), other.getNewId())
				&& Objects.equals(getOldId(), other.getOldId())
				&& Objects.equals(getWho(), other.getWho())
				&& Objects.equals(getComment(), other.getComment());
	}

	@Override
	public int hashCode() {
		return Objects.hash(input, getNewId(), getOldId(), getWho(),
				getComment());
	}

	@Override
	public Repository getRepository() {
		return input.getRepository();
	}

	@Override
	public ObjectId getObjectId() {
		return getNewId();
	}
}