NotesMergeConflictException.java

/*
 * Copyright (C) 2010, Sasa Zivkov <sasa.zivkov@sap.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.notes;

import java.io.IOException;
import java.text.MessageFormat;

import org.eclipse.jgit.internal.JGitText;

/**
 * This exception will be thrown from the
 * {@link org.eclipse.jgit.notes.NoteMerger} when a conflict on Notes content is
 * found during merge.
 */
public class NotesMergeConflictException extends IOException {
    private static final long serialVersionUID = 1L;

    /**
     * Construct a NotesMergeConflictException for the specified base, ours and
     * theirs note versions.
     *
     * @param base
     *            note version
     * @param ours
     *            note version
     * @param theirs
     *            note version
     */
    public NotesMergeConflictException(Note base, Note ours, Note theirs) {
        super(MessageFormat.format(JGitText.get().mergeConflictOnNotes,
                noteOn(base, ours, theirs), noteData(base), noteData(ours),
                noteData(theirs)));
    }

    /**
     * Constructs a NotesMergeConflictException for the specified base, ours and
     * theirs versions of the root note tree.
     *
     * @param base
     *            version of the root note tree
     * @param ours
     *            version of the root note tree
     * @param theirs
     *            version of the root note tree
     */
    public NotesMergeConflictException(NonNoteEntry base, NonNoteEntry ours,
            NonNoteEntry theirs) {
        super(MessageFormat.format(
                JGitText.get().mergeConflictOnNonNoteEntries, name(base),
                name(ours), name(theirs)));
    }

    private static String noteOn(Note base, Note ours, Note theirs) {
        if (base != null)
            return base.name();
        if (ours != null)
            return ours.name();
        return theirs.name();
    }

    private static String noteData(Note n) {
        if (n != null)
            return n.getData().name();
        return ""; //$NON-NLS-1$
    }

    private static String name(NonNoteEntry e) {
        return e != null ? e.name() : ""; //$NON-NLS-1$
    }
}