123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139 |
- /*
- * Copyright (C) 2010, Constantine Plotnikov <constantine.plotnikov@gmail.com>
- * Copyright (C) 2009, Google Inc.
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- package org.eclipse.jgit.lib;
-
- import java.io.IOException;
- import java.util.Collection;
-
- /**
- * An ObjectDatabase of another {@link Repository}.
- * <p>
- * This {@code ObjectDatabase} wraps around another {@code Repository}'s object
- * database, providing its contents to the caller, and closing the Repository
- * when this database is closed. The primary user of this class is
- * {@link ObjectDirectory}, when the {@code info/alternates} file points at the
- * {@code objects/} directory of another repository.
- */
- public final class AlternateRepositoryDatabase extends ObjectDatabase {
- private final Repository repository;
-
- private final ObjectDatabase odb;
-
- /**
- * @param alt
- * the alternate repository to wrap and export.
- */
- public AlternateRepositoryDatabase(final Repository alt) {
- repository = alt;
- odb = repository.getObjectDatabase();
- }
-
- /** @return the alternate repository objects are borrowed from. */
- public Repository getRepository() {
- return repository;
- }
-
- public void closeSelf() {
- repository.close();
- }
-
- public void create() throws IOException {
- repository.create();
- }
-
- public boolean exists() {
- return odb.exists();
- }
-
- @Override
- protected boolean hasObject1(final AnyObjectId objectId) {
- return odb.hasObject1(objectId);
- }
-
- @Override
- protected boolean tryAgain1() {
- return odb.tryAgain1();
- }
-
- @Override
- protected boolean hasObject2(final String objectName) {
- return odb.hasObject2(objectName);
- }
-
- @Override
- protected ObjectLoader openObject1(final WindowCursor curs,
- final AnyObjectId objectId) throws IOException {
- return odb.openObject1(curs, objectId);
- }
-
- @Override
- protected ObjectLoader openObject2(final WindowCursor curs,
- final String objectName, final AnyObjectId objectId)
- throws IOException {
- return odb.openObject2(curs, objectName, objectId);
- }
-
- @Override
- void openObjectInAllPacks1(final Collection<PackedObjectLoader> out,
- final WindowCursor curs, final AnyObjectId objectId)
- throws IOException {
- odb.openObjectInAllPacks1(out, curs, objectId);
- }
-
- @Override
- protected ObjectDatabase[] loadAlternates() throws IOException {
- return odb.getAlternates();
- }
-
- @Override
- protected void closeAlternates(final ObjectDatabase[] alt) {
- // Do nothing; these belong to odb to close, not us.
- }
-
- @Override
- public ObjectDatabase newCachedDatabase() {
- return odb.newCachedDatabase();
- }
- }
|