Package org.jboss.dna.graph

Examples of org.jboss.dna.graph.Graph$Batch


            }
        }
        // Ensure valid workspace name
        if (workspaceName == null) workspaceName = JcrI18n.defaultWorkspaceName.text();
        // Create session
        Graph graph = Graph.create(workspaceName, connectionFactory, execContext);
        return new JcrSession(this, workspaceName, graph, new ReferenceMap<UUID, Node>(ReferenceType.STRONG, ReferenceType.SOFT));
    }
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        checkRunning();
        Set<String> results = new HashSet<String>();
        // Read the names of the JCR repositories from the configuration (not from the Repository objects used so far) ...
        PathFactory pathFactory = getExecutionContext().getValueFactories().getPathFactory();
        Path repositoriesPath = pathFactory.create(configuration.getPath(), DnaLexicon.REPOSITORIES);
        Graph configuration = getConfigurationGraph();
        for (Location child : configuration.getChildren().of(repositoriesPath)) {
            Name repositoryName = child.getPath().getLastSegment().getName();
            results.add(readable(repositoryName));
        }
        return Collections.unmodifiableSet(results);
    }
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        // Read the subgraph that represents the repository ...
        PathFactory pathFactory = getExecutionContext().getValueFactories().getPathFactory();
        Path repositoriesPath = pathFactory.create(configuration.getPath(), DnaLexicon.REPOSITORIES);
        Path repositoryPath = pathFactory.create(repositoriesPath, repositoryName);
        Graph configuration = getConfigurationGraph();
        Subgraph subgraph = configuration.getSubgraphOfDepth(6).at(repositoryPath);

        // Read the options ...
        Node optionsNode = subgraph.getNode(DnaLexicon.OPTIONS);
        if (optionsNode != null) {
            for (Location optionLocation : optionsNode.getChildren()) {
                Node optionNode = configuration.getNodeAt(optionLocation);
                Path.Segment segment = optionLocation.getPath().getLastSegment();
                Property valueProperty = optionNode.getProperty(DnaLexicon.VALUE);
                if (valueProperty == null) continue;
                Option option = Option.findOption(segment.getName().getLocalName());
                if (option == null) continue;
                options.put(option, valueProperty.getFirstValue().toString());
            }
        }

        // Read the namespaces ...
        ExecutionContext context = getExecutionContext();
        Node namespacesNode = subgraph.getNode(DnaLexicon.NAMESPACES);
        if (namespacesNode != null) {
            GraphNamespaceRegistry registry = new GraphNamespaceRegistry(configuration, namespacesNode.getLocation().getPath(),
                                                                         DnaLexicon.NAMESPACE_URI);
            context = context.with(registry);
        }

        // Get the name of the source ...
        Property property = subgraph.getRoot().getProperty(DnaLexicon.SOURCE_NAME);
        if (property == null || property.isEmpty()) {
            String readableName = readable(DnaLexicon.SOURCE_NAME);
            String readablePath = readable(subgraph.getLocation());
            String msg = JcrI18n.propertyNotFoundOnNode.text(readableName, readablePath, configuration.getCurrentWorkspaceName());
            throw new RepositoryException(msg);
        }
        String sourceName = context.getValueFactories().getStringFactory().create(property.getFirstValue());

        // Find the capabilities ...
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                if (conn != null) {
                    // We found a source that we can use for the system ...
                    systemSourceName = pair.getSourceName();
                    if (pair.getWorkspaceName() != null) {
                        // There should be the named workspace ...
                        Graph temp = Graph.create(conn, executionContext);
                        temp.useWorkspace(pair.getWorkspaceName());
                        // found it ...
                        systemWorkspaceName = pair.getWorkspaceName();
                    }
                } else {
                    I18n msg = JcrI18n.systemSourceNameOptionValueDoesNotReferenceExistingSource;
                    Logger.getLogger(getClass()).warn(msg, systemSourceNameValue, systemSourceName);
                }
            } catch (InvalidWorkspaceException e) {
                // Bad workspace name ...
                systemSourceName = null;
                I18n msg = JcrI18n.systemSourceNameOptionValueDoesNotReferenceValidWorkspace;
                Logger.getLogger(getClass()).warn(msg, systemSourceNameValue, systemSourceName);
            } catch (IllegalArgumentException e) {
                // Invalid format ...
                systemSourceName = null;
                I18n msg = JcrI18n.systemSourceNameOptionValueIsNotFormattedCorrectly;
                Logger.getLogger(getClass()).warn(msg, systemSourceNameValue);
            }
        }
        if (systemSourceName == null) {
            // Create the in-memory repository source that we'll use for the "/jcr:system" branch in this repository.
            // All workspaces will be set up with a federation connector that projects this system repository into
            // "/jcr:system", and all other content is projected to the repositories actual source (and workspace).
            // (The federation connector refers to this configuration as an "offset mirror".)
            systemWorkspaceName = "jcr:system";
            systemSourceName = "jcr:system source";
            InMemoryRepositorySource transientSystemSource = new InMemoryRepositorySource();
            transientSystemSource.setName(systemSourceName);
            transientSystemSource.setDefaultWorkspaceName(systemWorkspaceName);
            connectionFactoryWithSystem = new DelegatingConnectionFactory(connectionFactory, transientSystemSource);
        }

        // Set up the query parsers, which we have to have even though queries might be disabled ...
        this.queryParsers = new QueryParsers(new SqlQueryParser(), new XPathQueryParser(), new FullTextSearchParser());
        assert this.queryParsers.getParserFor(Query.XPATH) != null;

        this.systemWorkspaceName = systemWorkspaceName;
        this.systemSourceName = systemSourceName;
        this.connectionFactory = connectionFactoryWithSystem;
        assert this.systemSourceName != null;
        assert this.connectionFactory != null;
        this.sourceName = repositorySourceName;

        // Set up the "/jcr:system" branch ...
        Graph systemGraph = Graph.create(this.systemSourceName, this.connectionFactory, executionContext);
        systemGraph.useWorkspace(systemWorkspaceName);
        initializeSystemContent(systemGraph);

        // Create the namespace registry and corresponding execution context.
        // Note that this persistent registry has direct access to the system workspace.
        Name uriProperty = DnaLexicon.NAMESPACE_URI;
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        // Right now, the other nodes will be created as needed
    }

    Graph createWorkspaceGraph( String workspaceName,
                                ExecutionContext workspaceContext ) {
        Graph graph = null;
        if (WORKSPACES_SHARE_SYSTEM_BRANCH) {
            // Connect via the federated source ...
            assert this.federatedSource != null;
            graph = Graph.create(this.federatedSource, workspaceContext);
        } else {
            // Otherwise, just create a graph directly to the connection factory ...
            graph = Graph.create(this.sourceName, this.connectionFactory, workspaceContext);
        }
        graph.useWorkspace(workspaceName);
        return graph;
    }
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    Graph createSystemGraph( ExecutionContext sessionContext ) {
        assert this.systemSourceName != null;
        assert this.connectionFactory != null;
        assert sessionContext != null;
        // The default workspace should be the system workspace ...
        Graph result = Graph.create(this.systemSourceName, this.connectionFactory, sessionContext);
        if (this.systemWorkspaceName != null) {
            result.useWorkspace(systemWorkspaceName);
        }
        return result;
    }
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            }
        }

        // Ensure valid workspace name by talking directly to the source ...
        boolean isDefault = false;
        Graph graph = Graph.create(sourceName, connectionFactory, executionContext);
        if (workspaceName == null) {
            try {
                // Get the correct workspace name given the desired workspace name (which may be null) ...
                workspaceName = graph.getCurrentWorkspace().getName();
            } catch (RepositorySourceException e) {
                throw new RepositoryException(JcrI18n.errorObtainingDefaultWorkspaceName.text(sourceName, e.getMessage()), e);
            }
            isDefault = true;
        } else {
            // There is a non-null workspace name ...
            try {
                // Verify that the workspace exists (or can be created) ...
                Set<String> workspaces = graph.getWorkspaces();
                if (!workspaces.contains(workspaceName)) {
                    if (WORKSPACES_SHARE_SYSTEM_BRANCH) {
                        // Make sure there isn't a federated workspace ...
                        this.federatedSource.removeWorkspace(workspaceName);
                    }
                    // Per JCR 1.0 6.1.1, if the workspaceName is not recognized, a NoSuchWorkspaceException is thrown
                    throw new NoSuchWorkspaceException(JcrI18n.workspaceNameIsInvalid.text(sourceName, workspaceName));
                }

                graph.useWorkspace(workspaceName);
            } catch (InvalidWorkspaceException e) {
                throw new NoSuchWorkspaceException(JcrI18n.workspaceNameIsInvalid.text(sourceName, workspaceName), e);
            } catch (RepositorySourceException e) {
                String msg = JcrI18n.errorVerifyingWorkspaceName.text(sourceName, workspaceName, e.getMessage());
                throw new NoSuchWorkspaceException(msg, e);
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        for (JcrSession activeSession : activeSessions) {
            activeSessionIds.add(activeSession.sessionId());
        }

        Graph systemGraph = createSystemGraph(executionContext);
        PathFactory pathFactory = executionContext.getValueFactories().getPathFactory();
        ValueFactory<Boolean> booleanFactory = executionContext.getValueFactories().getBooleanFactory();
        ValueFactory<String> stringFactory = executionContext.getValueFactories().getStringFactory();

        DateTimeFactory dateFactory = executionContext.getValueFactories().getDateFactory();
        DateTime now = dateFactory.create();
        DateTime newExpirationDate = now.plusMillis(JcrEngine.LOCK_EXTENSION_INTERVAL_IN_MILLIS);

        Path locksPath = pathFactory.createAbsolutePath(JcrLexicon.SYSTEM, DnaLexicon.LOCKS);

        Subgraph locksGraph = null;
        try {
            locksGraph = systemGraph.getSubgraphOfDepth(2).at(locksPath);
        } catch (PathNotFoundException pnfe) {
            // It's possible for this to run before the dna:locks child node gets added to the /jcr:system node.
            return;
        }

        for (Location lockLocation : locksGraph.getRoot().getChildren()) {
            Node lockNode = locksGraph.getNode(lockLocation);

            Boolean isSessionScoped = booleanFactory.create(lockNode.getProperty(DnaLexicon.IS_SESSION_SCOPED).getFirstValue());

            if (!isSessionScoped) continue;
            String lockingSession = stringFactory.create(lockNode.getProperty(DnaLexicon.LOCKING_SESSION).getFirstValue());

            // Extend locks held by active sessions
            if (activeSessionIds.contains(lockingSession)) {
                systemGraph.set(DnaLexicon.EXPIRATION_DATE).on(lockLocation).to(newExpirationDate);
            } else {
                DateTime expirationDate = dateFactory.create(lockNode.getProperty(DnaLexicon.EXPIRATION_DATE).getFirstValue());
                // Destroy expired locks (if it was still held by an active session, it would have been extended by now)
                if (expirationDate.isBefore(now)) {
                    String workspaceName = stringFactory.create(lockNode.getProperty(DnaLexicon.WORKSPACE).getFirstValue());
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        assertThat(configReposSource, is(notNullValue()));
        assertThat(configReposSource, is(instanceOf(InMemoryRepositorySource.class)));
        assertThat(configReposSource.getName(), is(JcrConfiguration.DEFAULT_CONFIGURATION_SOURCE_NAME));
        InMemoryRepositorySource configSource = (InMemoryRepositorySource)configReposSource;
        assertThat(configSource.getDefaultWorkspaceName(), is(JcrConfiguration.DEFAULT_WORKSPACE_NAME));
        Graph graph = engine.getGraph(JcrConfiguration.DEFAULT_CONFIGURATION_SOURCE_NAME);
        assertThat(graph, is(notNullValue()));
        assertThat(graph.getNodeAt("/"), is(notNullValue()));
        assertThat(graph.getNodeAt("/dna:sources"), is(notNullValue()));
        assertThat(graph.getNodeAt("/dna:sources/Source2"), hasProperty(DnaLexicon.DESCRIPTION, "description"));
        assertThat(graph.getNodeAt("/dna:repositories/JCR Repository"), hasProperty(DnaLexicon.SOURCE_NAME, "Source2"));

        // Get the repository ...
        JcrRepository repository = engine.getRepository("JCR Repository");
        assertThat(repository, is(notNullValue()));
    }
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        assertThat(configReposSource, is(instanceOf(InMemoryRepositorySource.class)));
        assertThat(configReposSource.getName(), is("config2"));
        InMemoryRepositorySource configSource2 = (InMemoryRepositorySource)configReposSource;
        assertThat(configSource2.getDefaultWorkspaceName(), is("")); // didn't change this

        Graph graph = engine.getGraph("config2");
        assertThat(graph, is(notNullValue()));
        assertThat(graph.getNodeAt("/"), is(notNullValue()));
        assertThat(graph.getNodeAt("/dna:sources"), is(notNullValue()));
        assertThat(graph.getNodeAt("/dna:sources/Source2"), hasProperty(DnaLexicon.DESCRIPTION, "description"));
        assertThat(graph.getNodeAt("/dna:repositories/JCR Repository"), hasProperty(DnaLexicon.SOURCE_NAME, "Source2"));

        // Get the repository ...
        JcrRepository repository = engine.getRepository("JCR Repository");
        assertThat(repository, is(notNullValue()));
    }
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