Java tutorial
/* * 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 java.util.Map.Entry; import org.eclipse.jgit.api.Git; import org.eclipse.jgit.api.MergeResult; import org.eclipse.jgit.api.PullResult; import org.eclipse.jgit.api.RebaseResult; import org.eclipse.jgit.lib.ObjectId; import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason; 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 Pull extends BasicFunction { public final static FunctionSignature signatures[] = { new FunctionSignature( new QName("pull", 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 PULL = new QName("pull", NAMESPACE_URI, PREFIX); private final static QName MERGE = new QName("merge", NAMESPACE_URI, PREFIX); private final static QName REBASE = new QName("rebase", NAMESPACE_URI, PREFIX); private final static QName CHECKOUT_CONFLICT = new QName("checkoutConflict", NAMESPACE_URI, PREFIX); private final static QName COMMIT = new QName("commit", NAMESPACE_URI, PREFIX); private final static QName ID = new QName("id", NAMESPACE_URI, PREFIX); private final static QName STATUS = new QName("status", NAMESPACE_URI, PREFIX); private final static QName IS_SUCCESSFUL = new QName("isSuccessful", NAMESPACE_URI, PREFIX); private final static QName FAILING_PATH = new QName("failingPath", NAMESPACE_URI, PREFIX); private final static QName PATH = new QName("path", NAMESPACE_URI, PREFIX); private final static QName REASON = new QName("reason", NAMESPACE_URI, PREFIX); public Pull(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); PullResult answer = git.pull().setCredentialsProvider( new UsernamePasswordCredentialsProvider(args[1].getStringValue(), args[2].getStringValue())) .call(); MemTreeBuilder builder = getContext().getDocumentBuilder(); int nodeNr = builder.startElement(PULL, null); builder.addAttribute(IS_SUCCESSFUL, Boolean.toString(answer.isSuccessful())); MergeResult merge = answer.getMergeResult(); if (merge != null) { builder.startElement(MERGE, null); builder.addAttribute(STATUS, merge.getMergeStatus().toString()); builder.addAttribute(IS_SUCCESSFUL, Boolean.toString(merge.getMergeStatus().isSuccessful())); for (ObjectId commit : merge.getMergedCommits()) { builder.startElement(COMMIT, null); builder.addAttribute(ID, commit.name()); builder.endElement(); } builder.endElement(); if (merge.getConflicts() != null) { for (Entry<String, int[][]> entry : merge.getConflicts().entrySet()) { builder.startElement(CHECKOUT_CONFLICT, null); builder.addAttribute(PATH, entry.getKey()); builder.endElement(); } } if (merge.getCheckoutConflicts() != null) { for (String path : merge.getCheckoutConflicts()) { builder.startElement(CHECKOUT_CONFLICT, null); builder.addAttribute(PATH, path); builder.endElement(); } } if (merge.getFailingPaths() != null) { for (Entry<String, MergeFailureReason> entry : merge.getFailingPaths().entrySet()) { builder.startElement(FAILING_PATH, null); builder.addAttribute(PATH, entry.getKey()); builder.addAttribute(REASON, entry.getValue().name()); builder.endElement(); } } } RebaseResult rebase = answer.getRebaseResult(); if (rebase != null) { builder.startElement(REBASE, null); builder.addAttribute(STATUS, rebase.getStatus().toString()); builder.addAttribute(IS_SUCCESSFUL, Boolean.toString(rebase.getStatus().isSuccessful())); //rebase.getConflicts() if (rebase.getFailingPaths() != null) { for (Entry<String, MergeFailureReason> entry : rebase.getFailingPaths().entrySet()) { builder.startElement(FAILING_PATH, null); builder.addAttribute(PATH, entry.getKey()); builder.addAttribute(REASON, entry.getValue().name()); builder.endElement(); } } builder.endElement(); } return builder.getDocument().getNode(nodeNr); } catch (Throwable e) { e.printStackTrace(); throw new XPathException(this, Module.EXGIT001, e); } } }