ReflogEntryImpl.java

/*
 * Copyright (C) 2011, Chris Aniszczyk <caniszczyk@gmail.com>
 * Copyright (C) 2009, Robin Rosenberg <robin.rosenberg@dewire.com> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package org.eclipse.jgit.internal.storage.file;

import java.io.Serializable;

import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.CheckoutEntry;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.lib.ReflogEntry;
import org.eclipse.jgit.util.RawParseUtils;

/**
 * Parsed reflog entry
 */
public class ReflogEntryImpl implements Serializable, ReflogEntry {
    private static final long serialVersionUID = 1L;

    private ObjectId oldId;

    private ObjectId newId;

    private PersonIdent who;

    private String comment;

    ReflogEntryImpl(byte[] raw, int pos) {
        oldId = ObjectId.fromString(raw, pos);
        pos += Constants.OBJECT_ID_STRING_LENGTH;
        if (raw[pos++] != ' ')
            throw new IllegalArgumentException(
                    JGitText.get().rawLogMessageDoesNotParseAsLogEntry);
        newId = ObjectId.fromString(raw, pos);
        pos += Constants.OBJECT_ID_STRING_LENGTH;
        if (raw[pos++] != ' ') {
            throw new IllegalArgumentException(
                    JGitText.get().rawLogMessageDoesNotParseAsLogEntry);
        }
        who = RawParseUtils.parsePersonIdentOnly(raw, pos);
        int p0 = RawParseUtils.next(raw, pos, '\t');
        if (p0 >= raw.length)
            comment = ""; // personident has no \t, no comment present //$NON-NLS-1$
        else {
            int p1 = RawParseUtils.nextLF(raw, p0);
            comment = p1 > p0 ? RawParseUtils.decode(raw, p0, p1 - 1) : ""; //$NON-NLS-1$
        }
    }

    /* (non-Javadoc)
     * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#getOldId()
     */
    /** {@inheritDoc} */
    @Override
    public ObjectId getOldId() {
        return oldId;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#getNewId()
     */
    /** {@inheritDoc} */
    @Override
    public ObjectId getNewId() {
        return newId;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#getWho()
     */
    /** {@inheritDoc} */
    @Override
    public PersonIdent getWho() {
        return who;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#getComment()
     */
    /** {@inheritDoc} */
    @Override
    public String getComment() {
        return comment;
    }

    /** {@inheritDoc} */
    @SuppressWarnings("nls")
    @Override
    public String toString() {
        return "Entry[" + oldId.name() + ", " + newId.name() + ", " + getWho()
                + ", " + getComment() + "]";
    }

    /* (non-Javadoc)
     * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#parseCheckout()
     */
    /** {@inheritDoc} */
    @Override
    public CheckoutEntry parseCheckout() {
        if (getComment().startsWith(CheckoutEntryImpl.CHECKOUT_MOVING_FROM)) {
            return new CheckoutEntryImpl(this);
        }
        return null;
    }
}