org.exist.git.xquery.Push.java Source code

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Here is the source code for org.exist.git.xquery.Push.java

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/*
 *  eXist Open Source Native XML Database
 *  Copyright (C) 2012-2013 The eXist Project
 *  http://exist-db.org
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2
 *  of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *  $Id$
 */
package org.exist.git.xquery;

import static org.exist.git.xquery.Module.FS;
import static org.exist.git.xquery.Module.NAMESPACE_URI;
import static org.exist.git.xquery.Module.PREFIX;

import java.io.File;

import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.transport.PushResult;
import org.eclipse.jgit.transport.RemoteRefUpdate;
import org.eclipse.jgit.transport.TrackingRefUpdate;
import org.exist.jgit.transport.UsernamePasswordCredentialsProvider;
import org.exist.dom.QName;
import org.exist.memtree.MemTreeBuilder;
import org.exist.util.io.Resource;
import org.exist.xquery.*;
import org.exist.xquery.value.*;

/**
 * 
 * @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
 */
public class Push extends BasicFunction {

    public final static FunctionSignature signatures[] = { new FunctionSignature(
            new QName("push", Module.NAMESPACE_URI, Module.PREFIX), "",
            new SequenceType[] {
                    new FunctionParameterSequenceType("localPath", Type.STRING, Cardinality.EXACTLY_ONE,
                            "Local path"),
                    new FunctionParameterSequenceType("username", Type.STRING, Cardinality.EXACTLY_ONE, "Username"),
                    new FunctionParameterSequenceType("password", Type.STRING, Cardinality.EXACTLY_ONE,
                            "Password") },
            new FunctionReturnSequenceType(Type.BOOLEAN, Cardinality.EXACTLY_ONE,
                    "true if success, false otherwise")) };

    private final static QName PUSH = new QName("push", NAMESPACE_URI, PREFIX);
    private final static QName RESULT = new QName("result", NAMESPACE_URI, PREFIX);

    private final static QName REMOTE_REF_UPDATE = new QName("remoteRefUpdate", NAMESPACE_URI, PREFIX);
    private final static QName REMOTE_NAME = new QName("remoteName", NAMESPACE_URI, PREFIX);
    private final static QName STATUS = new QName("status", NAMESPACE_URI, PREFIX);
    private final static QName EXPECTED_OLD_OBJECTID = new QName("expectedOldObjectId", NAMESPACE_URI, PREFIX);
    private final static QName NEW_OBJECTID = new QName("newObjectId", NAMESPACE_URI, PREFIX);
    private final static QName FAST_FORWARD = new QName("fastForward", NAMESPACE_URI, PREFIX);
    private final static QName FORCE_UPDATE = new QName("forceUpdate", NAMESPACE_URI, PREFIX);

    private final static QName TRACKING_REF_UPDATE = new QName("trackingRefUpdate", NAMESPACE_URI, PREFIX);
    private final static QName LOCAL_NAME = new QName("localName", NAMESPACE_URI, PREFIX);
    private final static QName OLD_OBJECTID = new QName("oldObjectId", NAMESPACE_URI, PREFIX);

    public Push(XQueryContext context, FunctionSignature signature) {
        super(context, signature);
    }

    @Override
    public Sequence eval(Sequence[] args, Sequence contextSequence) throws XPathException {

        try {
            String localPath = args[0].getStringValue();
            if (!(localPath.endsWith("/")))
                localPath += File.separator;

            Git git = Git.open(new Resource(localPath), FS);

            Iterable<PushResult> answer = git.push().setCredentialsProvider(
                    new UsernamePasswordCredentialsProvider(args[1].getStringValue(), args[2].getStringValue()))
                    .call();

            MemTreeBuilder builder = getContext().getDocumentBuilder();

            int nodeNr = builder.startElement(PUSH, null);

            for (PushResult push : answer) {

                builder.startElement(RESULT, null);

                for (TrackingRefUpdate tracking : push.getTrackingRefUpdates()) {

                    builder.startElement(TRACKING_REF_UPDATE, null);

                    builder.addAttribute(REMOTE_NAME, tracking.getRemoteName());
                    builder.addAttribute(LOCAL_NAME, tracking.getLocalName());

                    //builder.addAttribute(FORCE_UPDATE, Boolean.toString(tracking.forceUpdate));

                    builder.addAttribute(OLD_OBJECTID, tracking.getOldObjectId().name());
                    builder.addAttribute(NEW_OBJECTID, tracking.getNewObjectId().name());
                }

                for (RemoteRefUpdate remote : push.getRemoteUpdates()) {

                    builder.startElement(REMOTE_REF_UPDATE, null);

                    builder.addAttribute(REMOTE_NAME, remote.getRemoteName());
                    builder.addAttribute(STATUS, remote.getStatus().name());

                    if (remote.isExpectingOldObjectId())
                        builder.addAttribute(EXPECTED_OLD_OBJECTID, remote.getExpectedOldObjectId().name());

                    if (remote.getNewObjectId() != null)
                        builder.addAttribute(NEW_OBJECTID, remote.getNewObjectId().name());

                    builder.addAttribute(FAST_FORWARD, Boolean.toString(remote.isFastForward()));
                    builder.addAttribute(FORCE_UPDATE, Boolean.toString(remote.isForceUpdate()));

                    if (remote.getMessage() != null)
                        builder.characters(remote.getMessage());

                    builder.endElement();
                }
                builder.endElement();
            }

            builder.endElement();

            return builder.getDocument().getNode(nodeNr);
        } catch (Throwable e) {
            e.printStackTrace();
            throw new XPathException(this, Module.EXGIT001, e);
        }
    }
}