de.fkoeberle.autocommit.git.FileSetDeltaBuilder.java Source code

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Here is the source code for de.fkoeberle.autocommit.git.FileSetDeltaBuilder.java

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/*
 * Copyright (C) 2012, Florian Kberle <florian@fkoeberle.de>
 *
 * 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 de.fkoeberle.autocommit.git;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.Repository;

import de.fkoeberle.autocommit.message.AddedFile;
import de.fkoeberle.autocommit.message.ChangedFile;
import de.fkoeberle.autocommit.message.FileSetDelta;
import de.fkoeberle.autocommit.message.IFileContent;
import de.fkoeberle.autocommit.message.RemovedFile;

public class FileSetDeltaBuilder implements GitFileSetDeltaVisitor {
    private final ObjectReader reader;
    private final List<ChangedFile> changedFiles;
    private final List<AddedFile> addedFiles;
    private final List<RemovedFile> removedFiles;

    FileSetDeltaBuilder(ObjectReader reader) {
        this.reader = reader;
        this.changedFiles = new ArrayList<ChangedFile>();
        this.addedFiles = new ArrayList<AddedFile>();
        this.removedFiles = new ArrayList<RemovedFile>();
    }

    FileSetDeltaBuilder(Repository repository) {
        this(repository.newObjectReader());
    }

    @Override
    public void visitAddedFile(String path, ObjectId newObjectId) throws IOException {
        IFileContent newContent = new FileContent(newObjectId, reader);
        addedFiles.add(new AddedFile(path, newContent));
    }

    @Override
    public void visitRemovedFile(String path, ObjectId oldObjectId) throws IOException {
        IFileContent oldContent = new FileContent(oldObjectId, reader);
        removedFiles.add(new RemovedFile(path, oldContent));
    }

    @Override
    public void visitChangedFile(String path, ObjectId oldObjectId, ObjectId newObjectId) throws IOException {
        IFileContent oldContent = new FileContent(oldObjectId, reader);
        IFileContent newContent = new FileContent(newObjectId, reader);
        changedFiles.add(new ChangedFile(path, oldContent, newContent));
    }

    public FileSetDelta build() {
        return new FileSetDelta(changedFiles, addedFiles, removedFiles);
    }

}