Example #1
0
  private List generateSequence(List projects) {
    DefaultModelFactory factory = new DefaultModelFactory();
    Repository repository = (Repository) getProject().getReference("q.project.repository");
    factory.setRepository(repository);

    // 1st pass: map artifacts generated from each project to a target representing their project
    // files
    Project tempProject = new Project();

    Map targetsByArtifact = new HashMap();
    Map targetsByProject = new HashMap();
    List models = new ArrayList();

    for (Iterator i = projects.iterator(); i.hasNext(); ) {
      File projectFile = (File) i.next();

      // For now, we assume the default profile will contain all dependencies
      ProjectModel model =
          factory.getProjectModel(
              projectFile, Collections.EMPTY_LIST, true, null, new TaskLogger(this), getProject());
      models.add(model);

      // Create a target for each project file
      Target target = new Target();
      target.setName(projectFile.getAbsolutePath());
      tempProject.addTarget(target);
      targetsByProject.put(model.getProject().getProjectFile(), target);

      // Map the artifacts to the target
      for (Iterator j = model.getProject().getArtifacts().iterator(); j.hasNext(); ) {
        Artifact artifact = (Artifact) j.next();
        targetsByArtifact.put(artifact.getId(), target);
      }
    }

    // 2nd pass: Process project dependencies. Where a dependency uses an artifactId found in the
    // 1st pass,
    // set up a dependency between the projects.
    for (Iterator i = models.iterator(); i.hasNext(); ) {
      ProjectModel model = (ProjectModel) i.next();
      Target projectTarget = (Target) targetsByProject.get(model.getProject().getProjectFile());

      Set dependencies = getDependencies(model);

      // Where there is a dependency between projects, mirror it in the targets
      for (Iterator j = dependencies.iterator(); j.hasNext(); ) {
        RepoArtifactId id = (RepoArtifactId) j.next();
        Target dependencyTarget = (Target) targetsByArtifact.get(id);

        if (dependencyTarget != null) {
          projectTarget.addDependency(dependencyTarget.getName());
        }
      }
    }

    // Use ANT's target dependency mechanism to produce a build sequence
    String anyTarget = ((Target) targetsByArtifact.values().iterator().next()).getName();
    Collection sequencedTargets = tempProject.topoSort(anyTarget, tempProject.getTargets());

    // Transform targets into a list of files
    List sequence = new ArrayList();

    for (Iterator i = sequencedTargets.iterator(); i.hasNext(); ) {
      Target seqTarget = (Target) i.next();
      sequence.add(new File(seqTarget.getName()));
    }

    return sequence;
  }
    /**
     * Initialisation routine called after handler creation with the element name and attributes.
     * The attributes which this handler can deal with are: <code>"default"</code>, <code>"name"
     * </code>, <code>"id"</code> and <code>"basedir"</code>.
     *
     * @param uri The namespace URI for this element.
     * @param tag Name of the element which caused this handler to be created. Should not be <code>
     *     null</code>. Ignored in this implementation.
     * @param qname The qualified name for this element.
     * @param attrs Attributes of the element which caused this handler to be created. Must not be
     *     <code>null</code>.
     * @param context The current context.
     * @exception SAXParseException if an unexpected attribute is encountered or if the <code>
     *     "default"</code> attribute is missing.
     */
    public void onStartElement(
        String uri, String tag, String qname, Attributes attrs, AntXMLContext context)
        throws SAXParseException {
      String baseDir = null;
      boolean nameAttributeSet = false;

      Project project = context.getProject();
      // Set the location of the implicit target associated with the project tag
      context.getImplicitTarget().setLocation(new Location(context.getLocator()));

      /**
       * XXX I really don't like this - the XML processor is still too 'involved' in the processing.
       * A better solution (IMO) would be to create UE for Project and Target too, and then process
       * the tree and have Project/Target deal with its attributes ( similar with Description ).
       *
       * <p>If we eventually switch to ( or add support for ) DOM, things will work smoothly - UE
       * can be avoided almost completely ( it could still be created on demand, for backward
       * compatibility )
       */
      for (int i = 0; i < attrs.getLength(); i++) {
        String attrUri = attrs.getURI(i);
        if (attrUri != null && !attrUri.equals("") && !attrUri.equals(uri)) {
          continue; // Ignore attributes from unknown uris
        }
        String key = attrs.getLocalName(i);
        String value = attrs.getValue(i);

        if (key.equals("default")) {
          if (value != null && !value.equals("")) {
            if (!context.isIgnoringProjectTag()) {
              project.setDefault(value);
            }
          }
        } else if (key.equals("name")) {
          if (value != null) {
            context.setCurrentProjectName(value);
            nameAttributeSet = true;
            if (!context.isIgnoringProjectTag()) {
              project.setName(value);
              project.addReference(value, project);
            } else if (isInIncludeMode()) {
              if (!"".equals(value)
                  && (getCurrentTargetPrefix() == null || getCurrentTargetPrefix().length() == 0)) {
                // help nested include tasks
                setCurrentTargetPrefix(value);
              }
            }
          }
        } else if (key.equals("id")) {
          if (value != null) {
            // What's the difference between id and name ?
            if (!context.isIgnoringProjectTag()) {
              project.addReference(value, project);
            }
          }
        } else if (key.equals("basedir")) {
          if (!context.isIgnoringProjectTag()) {
            baseDir = value;
          }
        } else {
          // XXX ignore attributes in a different NS ( maybe store them ? )
          throw new SAXParseException(
              "Unexpected attribute \"" + attrs.getQName(i) + "\"", context.getLocator());
        }
      }

      // XXX Move to Project ( so it is shared by all helpers )
      String antFileProp = MagicNames.ANT_FILE + "." + context.getCurrentProjectName();
      String dup = project.getProperty(antFileProp);
      String typeProp = MagicNames.ANT_FILE_TYPE + "." + context.getCurrentProjectName();
      String dupType = project.getProperty(typeProp);
      if (dup != null && nameAttributeSet) {
        Object dupFile = null;
        Object contextFile = null;
        if (MagicNames.ANT_FILE_TYPE_URL.equals(dupType)) {
          try {
            dupFile = new URL(dup);
          } catch (java.net.MalformedURLException mue) {
            throw new BuildException(
                "failed to parse "
                    + dup
                    + " as URL while looking"
                    + " at a duplicate project"
                    + " name.",
                mue);
          }
          contextFile = context.getBuildFileURL();
        } else {
          dupFile = new File(dup);
          contextFile = context.getBuildFile();
        }

        if (context.isIgnoringProjectTag() && !dupFile.equals(contextFile)) {
          project.log(
              "Duplicated project name in import. Project "
                  + context.getCurrentProjectName()
                  + " defined first in "
                  + dup
                  + " and again in "
                  + contextFile,
              Project.MSG_WARN);
        }
      }
      if (nameAttributeSet) {
        if (context.getBuildFile() != null) {
          project.setUserProperty(antFileProp, context.getBuildFile().toString());
          project.setUserProperty(typeProp, MagicNames.ANT_FILE_TYPE_FILE);
        } else if (context.getBuildFileURL() != null) {
          project.setUserProperty(antFileProp, context.getBuildFileURL().toString());
          project.setUserProperty(typeProp, MagicNames.ANT_FILE_TYPE_URL);
        }
      }
      if (context.isIgnoringProjectTag()) {
        // no further processing
        return;
      }
      // set explicitly before starting ?
      if (project.getProperty("basedir") != null) {
        project.setBasedir(project.getProperty("basedir"));
      } else {
        // Default for baseDir is the location of the build file.
        if (baseDir == null) {
          project.setBasedir(context.getBuildFileParent().getAbsolutePath());
        } else {
          // check whether the user has specified an absolute path
          if ((new File(baseDir)).isAbsolute()) {
            project.setBasedir(baseDir);
          } else {
            project.setBaseDir(FILE_UTILS.resolveFile(context.getBuildFileParent(), baseDir));
          }
        }
      }
      project.addTarget("", context.getImplicitTarget());
      context.setCurrentTarget(context.getImplicitTarget());
    }