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/*
* Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com>
* Copyright (C) 2006-2008, Shawn O. Pearce <spearce@spearce.org>
* 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 static org.eclipse.jgit.lib.Constants.OBJ_BLOB;
import static org.eclipse.jgit.lib.Constants.OBJ_TREE;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* A class for writing loose objects.
*
* @deprecated Use {@link Repository#newObjectInserter()}.
*/
public class ObjectWriter {
private final ObjectInserter inserter;
/**
* Construct an Object writer for the specified repository
*
* @param d
*/
public ObjectWriter(final Repository d) {
inserter = d.newObjectInserter();
}
/**
* Write a blob with the specified data
*
* @param b
* bytes of the blob
* @return SHA-1 of the blob
* @throws IOException
*/
public ObjectId writeBlob(final byte[] b) throws IOException {
try {
ObjectId id = inserter.insert(OBJ_BLOB, b);
inserter.flush();
return id;
} finally {
inserter.release();
}
}
/**
* Write a blob with the data in the specified file
*
* @param f
* a file containing blob data
* @return SHA-1 of the blob
* @throws IOException
*/
public ObjectId writeBlob(final File f) throws IOException {
final FileInputStream is = new FileInputStream(f);
try {
return writeBlob(f.length(), is);
} finally {
is.close();
}
}
/**
* Write a blob with data from a stream
*
* @param len
* number of bytes to consume from the stream
* @param is
* stream with blob data
* @return SHA-1 of the blob
* @throws IOException
*/
public ObjectId writeBlob(final long len, final InputStream is)
throws IOException {
try {
ObjectId id = inserter.insert(OBJ_BLOB, len, is);
inserter.flush();
return id;
} finally {
inserter.release();
}
}
/**
* Write a Tree to the object database.
*
* @param tree
* Tree
* @return SHA-1 of the tree
* @throws IOException
*/
public ObjectId writeTree(Tree tree) throws IOException {
try {
ObjectId id = inserter.insert(OBJ_TREE, inserter.format(tree));
inserter.flush();
return id;
} finally {
inserter.release();
}
}
/**
* Write a canonical tree to the object database.
*
* @param treeData
* the canonical encoding of the tree object.
* @return SHA-1 of the tree
* @throws IOException
*/
public ObjectId writeCanonicalTree(byte[] treeData) throws IOException {
try {
ObjectId id = inserter.insert(OBJ_TREE, treeData);
inserter.flush();
return id;
} finally {
inserter.release();
}
}
/**
* Write a Commit to the object database
*
* @param commit
* Commit to store
* @return SHA-1 of the commit
* @throws IOException
*/
public ObjectId writeCommit(CommitBuilder commit) throws IOException {
try {
ObjectId id = inserter.insert(commit);
inserter.flush();
return id;
} finally {
inserter.release();
}
}
/**
* Write an annotated Tag to the object database
*
* @param tag
* Tag
* @return SHA-1 of the tag
* @throws IOException
*/
public ObjectId writeTag(TagBuilder tag) throws IOException {
try {
ObjectId id = inserter.insert(tag);
inserter.flush();
return id;
} finally {
inserter.release();
}
}
/**
* Compute the SHA-1 of a blob without creating an object. This is for
* figuring out if we already have a blob or not.
*
* @param len
* number of bytes to consume
* @param is
* stream for read blob data from
* @return SHA-1 of a looked for blob
* @throws IOException
*/
public ObjectId computeBlobSha1(long len, InputStream is)
throws IOException {
return computeObjectSha1(OBJ_BLOB, len, is);
}
/**
* Compute the SHA-1 of an object without actually creating an object in the
* database
*
* @param type
* kind of object
* @param len
* number of bytes to consume
* @param is
* stream for read data from
* @return SHA-1 of data combined with type information
* @throws IOException
*/
public ObjectId computeObjectSha1(int type, long len, InputStream is)
throws IOException {
try {
return inserter.idFor(type, len, is);
} finally {
inserter.release();
}
}
}
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