runtime/org.argeo.slc.repo/src/main/java/org/argeo/slc/repo/RepoUtils.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.repo;
  17
  18 import java.io.ByteArrayOutputStream;
  19 import java.io.File;
  20 import java.io.FileInputStream;
  21 import java.io.IOException;
  22 import java.io.InputStream;
  23 import java.io.OutputStream;
  24 import java.util.Enumeration;
  25 import java.util.Iterator;
  26 import java.util.Set;
  27 import java.util.StringTokenizer;
  28 import java.util.TreeSet;
  29 import java.util.jar.Attributes;
  30 import java.util.jar.JarEntry;
  31 import java.util.jar.JarFile;
  32 import java.util.jar.JarInputStream;
  33 import java.util.jar.JarOutputStream;
  34 import java.util.jar.Manifest;
  35 import java.util.zip.ZipInputStream;
  36
  37 import javax.jcr.Credentials;
  38 import javax.jcr.GuestCredentials;
  39 import javax.jcr.Node;
  40 import javax.jcr.NodeIterator;
  41 import javax.jcr.Property;
  42 import javax.jcr.PropertyIterator;
  43 import javax.jcr.Repository;
  44 import javax.jcr.RepositoryException;
  45 import javax.jcr.RepositoryFactory;
  46 import javax.jcr.Session;
  47 import javax.jcr.SimpleCredentials;
  48 import javax.jcr.nodetype.NodeType;
  49
  50 import org.apache.commons.io.FilenameUtils;
  51 import org.apache.commons.io.IOUtils;
  52 import org.apache.commons.logging.Log;
  53 import org.apache.commons.logging.LogFactory;
  54 import org.argeo.ArgeoMonitor;
  55 import org.argeo.jcr.ArgeoJcrUtils;
  56 import org.argeo.jcr.ArgeoNames;
  57 import org.argeo.jcr.ArgeoTypes;
  58 import org.argeo.jcr.JcrUtils;
  59 import org.argeo.slc.DefaultNameVersion;
  60 import org.argeo.slc.NameVersion;
  61 import org.argeo.slc.SlcException;
  62 import org.argeo.slc.aether.ArtifactIdComparator;
  63 import org.argeo.slc.jcr.SlcNames;
  64 import org.argeo.slc.jcr.SlcTypes;
  65 import org.argeo.slc.repo.maven.MavenConventionsUtils;
  66 import org.argeo.util.security.Keyring;
  67 import org.osgi.framework.Constants;
  68 import org.sonatype.aether.artifact.Artifact;
  69 import org.sonatype.aether.util.artifact.DefaultArtifact;
  70
  71 /** Utilities around repo */
  72 public class RepoUtils implements ArgeoNames, SlcNames {
  73         private final static Log log = LogFactory.getLog(RepoUtils.class);
  74
  75         /** Packages a regular sources jar as PDE source. */
  76         public static void packagesAsPdeSource(File sourceFile,
  77                         NameVersion nameVersion, OutputStream out) throws IOException {
  78                 if (isAlreadyPdeSource(sourceFile)) {
  79                         FileInputStream in = new FileInputStream(sourceFile);
  80                         IOUtils.copy(in, out);
  81                         IOUtils.closeQuietly(in);
  82                 } else {
  83                         String sourceSymbolicName = nameVersion.getName() + ".source";
  84
  85                         Manifest sourceManifest = null;
  86                         sourceManifest = new Manifest();
  87                         sourceManifest.getMainAttributes().put(
  88                                         Attributes.Name.MANIFEST_VERSION, "1.0");
  89                         sourceManifest.getMainAttributes().putValue("Bundle-SymbolicName",
  90                                         sourceSymbolicName);
  91                         sourceManifest.getMainAttributes().putValue("Bundle-Version",
  92                                         nameVersion.getVersion());
  93                         sourceManifest.getMainAttributes().putValue(
  94                                         "Eclipse-SourceBundle",
  95                                         nameVersion.getName() + ";version="
  96                                                         + nameVersion.getVersion());
  97                         copyJar(sourceFile, out, sourceManifest);
  98                 }
  99         }
 100
 101         public static byte[] packageAsPdeSource(InputStream sourceJar,
 102                         NameVersion nameVersion) {
 103                 String sourceSymbolicName = nameVersion.getName() + ".source";
 104
 105                 Manifest sourceManifest = null;
 106                 sourceManifest = new Manifest();
 107                 sourceManifest.getMainAttributes().put(
 108                                 Attributes.Name.MANIFEST_VERSION, "1.0");
 109                 sourceManifest.getMainAttributes().putValue("Bundle-SymbolicName",
 110                                 sourceSymbolicName);
 111                 sourceManifest.getMainAttributes().putValue("Bundle-Version",
 112                                 nameVersion.getVersion());
 113                 sourceManifest.getMainAttributes().putValue("Eclipse-SourceBundle",
 114                                 nameVersion.getName() + ";version=" + nameVersion.getVersion());
 115
 116                 return modifyManifest(sourceJar, sourceManifest);
 117         }
 118
 119         /**
 120          * Check whether the file as already been packaged as PDE source, in order
 121          * not to mess with Jar signing
 122          */
 123         private static boolean isAlreadyPdeSource(File sourceFile) {
 124                 JarInputStream jarInputStream = null;
 125
 126                 try {
 127                         jarInputStream = new JarInputStream(new FileInputStream(sourceFile));
 128
 129                         Manifest manifest = jarInputStream.getManifest();
 130                         Iterator<?> it = manifest.getMainAttributes().keySet().iterator();
 131                         boolean res = false;
 132                         // containsKey() does not work, iterating...
 133                         while (it.hasNext())
 134                                 if (it.next().toString().equals("Eclipse-SourceBundle")) {
 135                                         res = true;
 136                                         break;
 137                                 }
 138                         // boolean res = manifest.getMainAttributes().get(
 139                         // "Eclipse-SourceBundle") != null;
 140                         if (res)
 141                                 log.info(sourceFile + " is already a PDE source");
 142                         return res;
 143                 } catch (Exception e) {
 144                         // probably not a jar, skipping
 145                         if (log.isDebugEnabled())
 146                                 log.debug("Skipping " + sourceFile + " because of "
 147                                                 + e.getMessage());
 148                         return false;
 149                 } finally {
 150                         IOUtils.closeQuietly(jarInputStream);
 151                 }
 152         }
 153
 154         /**
 155          * Copy a jar, replacing its manifest with the provided one
 156          *
 157          * @param manifest
 158          *            can be null
 159          */
 160         private static void copyJar(File source, OutputStream out, Manifest manifest)
 161                         throws IOException {
 162                 JarFile sourceJar = null;
 163                 JarOutputStream output = null;
 164                 try {
 165                         output = manifest != null ? new JarOutputStream(out, manifest)
 166                                         : new JarOutputStream(out);
 167                         sourceJar = new JarFile(source);
 168
 169                         entries: for (Enumeration<?> entries = sourceJar.entries(); entries
 170                                         .hasMoreElements();) {
 171                                 JarEntry entry = (JarEntry) entries.nextElement();
 172                                 if (manifest != null
 173                                                 && entry.getName().equals("META-INF/MANIFEST.MF"))
 174                                         continue entries;
 175
 176                                 InputStream entryStream = sourceJar.getInputStream(entry);
 177                                 JarEntry newEntry = new JarEntry(entry.getName());
 178                                 // newEntry.setMethod(JarEntry.DEFLATED);
 179                                 output.putNextEntry(newEntry);
 180                                 IOUtils.copy(entryStream, output);
 181                         }
 182                 } finally {
 183                         IOUtils.closeQuietly(output);
 184                         try {
 185                                 if (sourceJar != null)
 186                                         sourceJar.close();
 187                         } catch (IOException e) {
 188                                 // silent
 189                         }
 190                 }
 191         }
 192
 193         /** Copy a jar changing onlythe manifest */
 194         public static void copyJar(InputStream in, OutputStream out,
 195                         Manifest manifest) {
 196                 JarInputStream jarIn = null;
 197                 JarOutputStream jarOut = null;
 198                 try {
 199                         jarIn = new JarInputStream(in);
 200                         jarOut = new JarOutputStream(out, manifest);
 201                         JarEntry jarEntry = null;
 202                         while ((jarEntry = jarIn.getNextJarEntry()) != null) {
 203                                 jarOut.putNextEntry(jarEntry);
 204                                 IOUtils.copy(jarIn, jarOut);
 205                                 jarIn.closeEntry();
 206                                 jarOut.closeEntry();
 207                         }
 208                 } catch (IOException e) {
 209                         throw new SlcException("Could not copy jar with MANIFEST "
 210                                         + manifest.getMainAttributes(), e);
 211                 } finally {
 212                         if (!(in instanceof ZipInputStream))
 213                                 IOUtils.closeQuietly(jarIn);
 214                         IOUtils.closeQuietly(jarOut);
 215                 }
 216         }
 217
 218         /** Reads a jar file, modify its manifest */
 219         public static byte[] modifyManifest(InputStream in, Manifest manifest) {
 220                 ByteArrayOutputStream out = new ByteArrayOutputStream(200 * 1024);
 221                 try {
 222                         copyJar(in, out, manifest);
 223                         return out.toByteArray();
 224                 } finally {
 225                         IOUtils.closeQuietly(out);
 226                 }
 227         }
 228
 229         /** Read the OSGi {@link NameVersion} */
 230         public static NameVersion readNameVersion(Artifact artifact) {
 231                 File artifactFile = artifact.getFile();
 232                 if (artifact.getExtension().equals("pom")) {
 233                         // hack to process jars which weirdly appear as POMs
 234                         File jarFile = new File(artifactFile.getParentFile(),
 235                                         FilenameUtils.getBaseName(artifactFile.getPath()) + ".jar");
 236                         if (jarFile.exists()) {
 237                                 log.warn("Use " + jarFile + " instead of " + artifactFile
 238                                                 + " for " + artifact);
 239                                 artifactFile = jarFile;
 240                         }
 241                 }
 242                 return readNameVersion(artifactFile);
 243         }
 244
 245         /** Read the OSGi {@link NameVersion} */
 246         public static NameVersion readNameVersion(File artifactFile) {
 247                 try {
 248                         return readNameVersion(new FileInputStream(artifactFile));
 249                 } catch (Exception e) {
 250                         // probably not a jar, skipping
 251                         if (log.isDebugEnabled()) {
 252                                 log.debug("Skipping " + artifactFile + " because of " + e);
 253                                 // e.printStackTrace();
 254                         }
 255                 }
 256                 return null;
 257         }
 258
 259         /** Read the OSGi {@link NameVersion} */
 260         public static NameVersion readNameVersion(InputStream in) {
 261                 JarInputStream jarInputStream = null;
 262                 try {
 263                         jarInputStream = new JarInputStream(in);
 264                         return readNameVersion(jarInputStream.getManifest());
 265                 } catch (Exception e) {
 266                         // probably not a jar, skipping
 267                         if (log.isDebugEnabled()) {
 268                                 log.debug("Skipping because of " + e);
 269                                 e.printStackTrace();
 270                         }
 271                 } finally {
 272                         IOUtils.closeQuietly(jarInputStream);
 273                 }
 274                 return null;
 275         }
 276
 277         /** Read the OSGi {@link NameVersion} */
 278         public static NameVersion readNameVersion(Manifest manifest) {
 279                 DefaultNameVersion nameVersion = new DefaultNameVersion();
 280                 nameVersion.setName(manifest.getMainAttributes().getValue(
 281                                 Constants.BUNDLE_SYMBOLICNAME));
 282
 283                 // Skip additional specs such as
 284                 // ; singleton:=true
 285                 if (nameVersion.getName().indexOf(';') > -1) {
 286                         nameVersion
 287                                         .setName(new StringTokenizer(nameVersion.getName(), " ;")
 288                                                         .nextToken());
 289                 }
 290
 291                 nameVersion.setVersion(manifest.getMainAttributes().getValue(
 292                                 Constants.BUNDLE_VERSION));
 293
 294                 return nameVersion;
 295         }
 296
 297         /*
 298          * DATA MODEL
 299          */
 300         /** The artifact described by this node */
 301         public static Artifact asArtifact(Node node) throws RepositoryException {
 302                 if (node.isNodeType(SlcTypes.SLC_ARTIFACT_VERSION_BASE)) {
 303                         // FIXME update data model to store packaging at this level
 304                         String extension = "jar";
 305                         return new DefaultArtifact(node.getProperty(SLC_GROUP_ID)
 306                                         .getString(),
 307                                         node.getProperty(SLC_ARTIFACT_ID).getString(), extension,
 308                                         node.getProperty(SLC_ARTIFACT_VERSION).getString());
 309                 } else if (node.isNodeType(SlcTypes.SLC_ARTIFACT)) {
 310                         return new DefaultArtifact(node.getProperty(SLC_GROUP_ID)
 311                                         .getString(),
 312                                         node.getProperty(SLC_ARTIFACT_ID).getString(), node
 313                                                         .getProperty(SLC_ARTIFACT_CLASSIFIER).getString(),
 314                                         node.getProperty(SLC_ARTIFACT_EXTENSION).getString(), node
 315                                                         .getProperty(SLC_ARTIFACT_VERSION).getString());
 316                 } else {
 317                         throw new SlcException("Unsupported node type for " + node);
 318                 }
 319         }
 320
 321         /**
 322          * The path to the PDE source related to this artifact (or artifact version
 323          * base). There may or there may not be a node at this location (the
 324          * returned path will typically be used to test whether PDE sources are
 325          * attached to this artifact).
 326          */
 327         public static String relatedPdeSourcePath(String artifactBasePath,
 328                         Node artifactNode) throws RepositoryException {
 329                 Artifact artifact = asArtifact(artifactNode);
 330                 Artifact pdeSourceArtifact = new DefaultArtifact(artifact.getGroupId(),
 331                                 artifact.getArtifactId() + ".source", artifact.getExtension(),
 332                                 artifact.getVersion());
 333                 return MavenConventionsUtils.artifactPath(artifactBasePath,
 334                                 pdeSourceArtifact);
 335         }
 336
 337         /**
 338          * Copy this bytes array as an artifact, relative to the root of the
 339          * repository (typically the workspace root node)
 340          */
 341         public static Node copyBytesAsArtifact(Node artifactsBase,
 342                         Artifact artifact, byte[] bytes) throws RepositoryException {
 343                 String parentPath = MavenConventionsUtils.artifactParentPath(
 344                                 artifactsBase.getPath(), artifact);
 345                 Node folderNode = JcrUtils.mkfolders(artifactsBase.getSession(),
 346                                 parentPath);
 347                 return JcrUtils.copyBytesAsFile(folderNode,
 348                                 MavenConventionsUtils.artifactFileName(artifact), bytes);
 349         }
 350
 351         private RepoUtils() {
 352         }
 353
 354         /** If a source return the base bundle name, does not change otherwise */
 355         public static String extractBundleNameFromSourceName(String sourceBundleName) {
 356                 if (sourceBundleName.endsWith(".source"))
 357                         return sourceBundleName.substring(0, sourceBundleName.length()
 358                                         - ".source".length());
 359                 else
 360                         return sourceBundleName;
 361         }
 362
 363         /*
 364          * SOFTWARE REPOSITORIES
 365          */
 366
 367         /** Retrieve repository based on information in the repo node */
 368         public static Repository getRepository(RepositoryFactory repositoryFactory,
 369                         Keyring keyring, Node repoNode) {
 370                 try {
 371                         Repository repository;
 372                         if (repoNode.isNodeType(ArgeoTypes.ARGEO_REMOTE_REPOSITORY)) {
 373                                 String uri = repoNode.getProperty(ARGEO_URI).getString();
 374                                 if (uri.startsWith("http")) {// http, https
 375                                         repository = ArgeoJcrUtils.getRepositoryByUri(
 376                                                         repositoryFactory, uri);
 377                                 } else if (uri.startsWith("vm:")) {// alias
 378                                         repository = ArgeoJcrUtils.getRepositoryByUri(
 379                                                         repositoryFactory, uri);
 380                                 } else {
 381                                         throw new SlcException("Unsupported repository uri " + uri);
 382                                 }
 383                                 return repository;
 384                         } else {
 385                                 throw new SlcException("Unsupported node type " + repoNode);
 386                         }
 387                 } catch (RepositoryException e) {
 388                         throw new SlcException("Cannot connect to repository " + repoNode,
 389                                         e);
 390                 }
 391         }
 392
 393         /**
 394          * Reads credentials from node, using keyring if there is a password. Can
 395          * return null if no credentials needed (local repo) at all, but returns
 396          * {@link GuestCredentials} if user id is 'anonymous' .
 397          */
 398         public static Credentials getRepositoryCredentials(Keyring keyring,
 399                         Node repoNode) {
 400                 try {
 401                         if (repoNode.isNodeType(ArgeoTypes.ARGEO_REMOTE_REPOSITORY)) {
 402                                 if (!repoNode.hasProperty(ARGEO_USER_ID))
 403                                         return null;
 404
 405                                 String userId = repoNode.getProperty(ARGEO_USER_ID).getString();
 406                                 if (userId.equals("anonymous"))// FIXME hardcoded userId
 407                                         return new GuestCredentials();
 408                                 char[] password = keyring.getAsChars(repoNode.getPath() + '/'
 409                                                 + ARGEO_PASSWORD);
 410                                 Credentials credentials = new SimpleCredentials(userId,
 411                                                 password);
 412                                 return credentials;
 413                         } else {
 414                                 throw new SlcException("Unsupported node type " + repoNode);
 415                         }
 416                 } catch (RepositoryException e) {
 417                         throw new SlcException("Cannot connect to repository " + repoNode,
 418                                         e);
 419                 }
 420         }
 421
 422         /**
 423          * Shortcut to retrieve a session given variable information: Handle the
 424          * case where we only have an URI of the repository, that we want to connect
 425          * as anonymous or the case of a identified connection to a local or remote
 426          * repository.
 427          *
 428          * Callers must close the session once it has been used
 429          */
 430         public static Session getRemoteSession(RepositoryFactory repositoryFactory,
 431                         Keyring keyring, Node repoNode, String uri, String workspaceName) {
 432                 try {
 433                         if (repoNode == null && uri == null)
 434                                 throw new SlcException(
 435                                                 "At least one of repoNode and uri must be defined");
 436                         Repository currRepo = null;
 437                         Credentials credentials = null;
 438                         // Anonymous URI only workspace
 439                         if (repoNode == null)
 440                                 // Anonymous
 441                                 currRepo = ArgeoJcrUtils.getRepositoryByUri(repositoryFactory,
 442                                                 uri);
 443                         else {
 444                                 currRepo = RepoUtils.getRepository(repositoryFactory, keyring,
 445                                                 repoNode);
 446                                 credentials = RepoUtils.getRepositoryCredentials(keyring,
 447                                                 repoNode);
 448                         }
 449                         return currRepo.login(credentials, workspaceName);
 450                 } catch (RepositoryException e) {
 451                         throw new SlcException("Cannot connect to workspace "
 452                                         + workspaceName + " of repository " + repoNode
 453                                         + " with URI " + uri, e);
 454                 }
 455         }
 456
 457         /**
 458          * Shortcut to retrieve a session on a remote Jrc Repository from
 459          * information stored in a local argeo node or from an URI: Handle the case
 460          * where we only have an URI of the repository, that we want to connect as
 461          * anonymous or the case of a identified connection to a local or remote
 462          * repository.
 463          *
 464          * Callers must close the session once it has been used
 465          */
 466         public static Session getRemoteSession(RepositoryFactory repositoryFactory,
 467                         Keyring keyring, Repository localRepository, String repoNodePath,
 468                         String uri, String workspaceName) {
 469                 Session localSession = null;
 470                 Node repoNode = null;
 471                 try {
 472                         localSession = localRepository.login();
 473                         if (repoNodePath != null && localSession.nodeExists(repoNodePath))
 474                                 repoNode = localSession.getNode(repoNodePath);
 475
 476                         return RepoUtils.getRemoteSession(repositoryFactory, keyring,
 477                                         repoNode, uri, workspaceName);
 478                 } catch (RepositoryException e) {
 479                         throw new SlcException("Cannot log to workspace " + workspaceName
 480                                         + " for repo defined in " + repoNodePath, e);
 481                 } finally {
 482                         JcrUtils.logoutQuietly(localSession);
 483                 }
 484         }
 485
 486         /**
 487          * Write group indexes: 'binaries' lists all bundles and their versions,
 488          * 'sources' list their sources, and 'sdk' aggregates both.
 489          */
 490         public static void writeGroupIndexes(Session session,
 491                         String artifactBasePath, String groupId, String version,
 492                         Set<Artifact> binaries, Set<Artifact> sources) {
 493                 try {
 494                         Set<Artifact> indexes = new TreeSet<Artifact>(
 495                                         new ArtifactIdComparator());
 496                         Artifact binariesArtifact = writeIndex(session, artifactBasePath,
 497                                         groupId, RepoConstants.BINARIES_ARTIFACT_ID, version,
 498                                         binaries);
 499                         indexes.add(binariesArtifact);
 500                         if (sources != null) {
 501                                 Artifact sourcesArtifact = writeIndex(session,
 502                                                 artifactBasePath, groupId,
 503                                                 RepoConstants.SOURCES_ARTIFACT_ID, version, sources);
 504                                 indexes.add(sourcesArtifact);
 505                         }
 506                         // sdk
 507                         writeIndex(session, artifactBasePath, groupId,
 508                                         RepoConstants.SDK_ARTIFACT_ID, version, indexes);
 509                         session.save();
 510                 } catch (RepositoryException e) {
 511                         throw new SlcException("Cannot write indexes for group " + groupId,
 512                                         e);
 513                 }
 514         }
 515
 516         /** Write a group index. */
 517         private static Artifact writeIndex(Session session,
 518                         String artifactBasePath, String groupId, String artifactId,
 519                         String version, Set<Artifact> artifacts) throws RepositoryException {
 520                 Artifact artifact = new DefaultArtifact(groupId, artifactId, "pom",
 521                                 version);
 522                 String pom = MavenConventionsUtils.artifactsAsDependencyPom(artifact,
 523                                 artifacts, null);
 524                 Node node = RepoUtils.copyBytesAsArtifact(
 525                                 session.getNode(artifactBasePath), artifact, pom.getBytes());
 526                 addMavenChecksums(node);
 527                 return artifact;
 528         }
 529
 530         /** Add files containing the SHA-1 and MD5 checksums. */
 531         public static void addMavenChecksums(Node node) throws RepositoryException {
 532                 // TODO optimize
 533                 String sha = JcrUtils.checksumFile(node, "SHA-1");
 534                 JcrUtils.copyBytesAsFile(node.getParent(), node.getName() + ".sha1",
 535                                 sha.getBytes());
 536                 String md5 = JcrUtils.checksumFile(node, "MD5");
 537                 JcrUtils.copyBytesAsFile(node.getParent(), node.getName() + ".md5",
 538                                 md5.getBytes());
 539         }
 540
 541         /**
 542          * Custom copy since the one in commons does not fit the needs when copying
 543          * a workspace completely.
 544          */
 545         public static void copy(Node fromNode, Node toNode) {
 546                 copy(fromNode, toNode, null);
 547         }
 548
 549         public static void copy(Node fromNode, Node toNode, ArgeoMonitor monitor) {
 550                 try {
 551                         String fromPath = fromNode.getPath();
 552                         if (monitor != null)
 553                                 monitor.subTask("copying node :" + fromPath);
 554                         if (log.isDebugEnabled())
 555                                 log.debug("copy node :" + fromPath);
 556
 557                         // FIXME : small hack to enable specific workspace copy
 558                         if (fromNode.isNodeType("rep:ACL")
 559                                         || fromNode.isNodeType("rep:system")) {
 560                                 if (log.isTraceEnabled())
 561                                         log.trace("node " + fromNode + " skipped");
 562                                 return;
 563                         }
 564
 565                         // add mixins
 566                         for (NodeType mixinType : fromNode.getMixinNodeTypes()) {
 567                                 toNode.addMixin(mixinType.getName());
 568                         }
 569
 570                         // Double check
 571                         for (NodeType mixinType : toNode.getMixinNodeTypes()) {
 572                                 if (log.isDebugEnabled())
 573                                         log.debug(mixinType.getName());
 574                         }
 575
 576                         // process properties
 577                         PropertyIterator pit = fromNode.getProperties();
 578                         properties: while (pit.hasNext()) {
 579                                 Property fromProperty = pit.nextProperty();
 580                                 String propName = fromProperty.getName();
 581                                 try {
 582                                         String propertyName = fromProperty.getName();
 583                                         if (toNode.hasProperty(propertyName)
 584                                                         && toNode.getProperty(propertyName).getDefinition()
 585                                                                         .isProtected())
 586                                                 continue properties;
 587
 588                                         if (fromProperty.getDefinition().isProtected())
 589                                                 continue properties;
 590
 591                                         if (propertyName.equals("jcr:created")
 592                                                         || propertyName.equals("jcr:createdBy")
 593                                                         || propertyName.equals("jcr:lastModified")
 594                                                         || propertyName.equals("jcr:lastModifiedBy"))
 595                                                 continue properties;
 596
 597                                         if (fromProperty.isMultiple()) {
 598                                                 toNode.setProperty(propertyName,
 599                                                                 fromProperty.getValues());
 600                                         } else {
 601                                                 toNode.setProperty(propertyName,
 602                                                                 fromProperty.getValue());
 603                                         }
 604                                 } catch (RepositoryException e) {
 605                                         throw new SlcException("Cannot property " + propName, e);
 606                                 }
 607                         }
 608
 609                         // recursively process children nodes
 610                         NodeIterator nit = fromNode.getNodes();
 611                         while (nit.hasNext()) {
 612                                 Node fromChild = nit.nextNode();
 613                                 Integer index = fromChild.getIndex();
 614                                 String nodeRelPath = fromChild.getName() + "[" + index + "]";
 615                                 Node toChild;
 616                                 if (toNode.hasNode(nodeRelPath))
 617                                         toChild = toNode.getNode(nodeRelPath);
 618                                 else
 619                                         toChild = toNode.addNode(fromChild.getName(), fromChild
 620                                                         .getPrimaryNodeType().getName());
 621                                 copy(fromChild, toChild);
 622                         }
 623
 624                         // update jcr:lastModified and jcr:lastModifiedBy in toNode in
 625                         // case
 626                         // they existed
 627                         if (!toNode.getDefinition().isProtected()
 628                                         && toNode.isNodeType(NodeType.MIX_LAST_MODIFIED))
 629                                 JcrUtils.updateLastModified(toNode);
 630
 631                         // Workaround to reduce session size: artifact is a saveable
 632                         // unity
 633                         if (toNode.isNodeType(SlcTypes.SLC_ARTIFACT))
 634                                 toNode.getSession().save();
 635
 636                         if (monitor != null)
 637                                 monitor.worked(1);
 638
 639                 } catch (RepositoryException e) {
 640                         throw new SlcException("Cannot copy " + fromNode + " to " + toNode,
 641                                         e);
 642                 }
 643         }
 644
 645 }