Examples with LoadSchemaAdvisor eu.esdihumboldt.hale.common.schema.io.impl.LoadSchemaAdvisor used on opensource projects

Example 1 with LoadSchemaAdvisor

use of eu.esdihumboldt.hale.common.schema.io.impl.LoadSchemaAdvisor in project hale by halestudio.

the class ExamplesContent method getMappingContent.

/**
 * Get the mapping documentation content for an example project.
 *
 * @param projectId the project ID
 * @return the mapping documentation content stream or <code>null</code>
 */
private InputStream getMappingContent(String projectId) {
    if (!mappingDocExportInitialized) {
        mappingDocExport = HaleIO.createIOProvider(AlignmentWriter.class, null, ID_MAPPING_EXPORT);
        if (mappingDocExport == null) {
            log.error("Could not create mapping documentation exporter.");
        }
        mappingDocExportInitialized = true;
    }
    if (mappingDocExport == null) {
        // no mapping documentation export possible
        return null;
    }
    if (tempMappingDir == null) {
        tempMappingDir = Files.createTempDir();
        tempMappingDir.deleteOnExit();
    }
    // the file of the mapping documentation
    File mappingDoc = new File(tempMappingDir, projectId + ".html");
    if (!mappingDoc.exists()) {
        ATransaction trans = log.begin("Generate example mapping documentation");
        try {
            // create the mapping documentation
            ExampleProject exampleProject = ExampleProjectExtension.getInstance().get(projectId);
            final Project project = (Project) exampleProject.getInfo();
            // determine alignment location - contained in project file, not
            // a resource
            URI alignmentLoc = exampleProject.getAlignmentLocation();
            if (alignmentLoc == null) {
                // no alignment present
                return null;
            }
            // store configurations per action ID
            Multimap<String, IOConfiguration> confs = HashMultimap.create();
            for (IOConfiguration conf : project.getResources()) {
                confs.put(conf.getActionId(), conf);
            }
            // load schemas
            // source schemas
            LoadSchemaAdvisor source = new LoadSchemaAdvisor(SchemaSpaceID.SOURCE);
            for (IOConfiguration conf : confs.get(SchemaIO.ACTION_LOAD_SOURCE_SCHEMA)) {
                source.setConfiguration(conf);
                executeProvider(source, conf.getProviderId(), null);
            }
            // target schemas
            LoadSchemaAdvisor target = new LoadSchemaAdvisor(SchemaSpaceID.TARGET);
            for (IOConfiguration conf : confs.get(SchemaIO.ACTION_LOAD_TARGET_SCHEMA)) {
                target.setConfiguration(conf);
                executeProvider(target, conf.getProviderId(), null);
            }
            // load alignment
            // manual loading needed, as we can't rely on the environment
            // alignment advisor
            DefaultInputSupplier alignmentIn = new DefaultInputSupplier(alignmentLoc);
            AlignmentReader reader = HaleIO.findIOProvider(AlignmentReader.class, alignmentIn, alignmentLoc.getPath());
            LoadAlignmentAdvisor alignmentAdvisor = new LoadAlignmentAdvisor(null, source.getSchemaSpace(), target.getSchemaSpace(), exampleProject.getUpdater());
            reader.setSource(alignmentIn);
            executeProvider(alignmentAdvisor, null, reader);
            Alignment alignment = alignmentAdvisor.getAlignment();
            if (alignment != null) {
                // save alignment docu
                synchronized (mappingDocExport) {
                    // only a single instance
                    mappingDocExport.setAlignment(alignment);
                    mappingDocExport.setTarget(new FileIOSupplier(mappingDoc));
                    if (mappingDocExport instanceof ProjectInfoAware) {
                        ProjectInfo smallInfo = new ProjectInfo() {

                            @Override
                            public String getName() {
                                return project.getName();
                            }

                            @Override
                            public Date getModified() {
                                return null;
                            }

                            @Override
                            public Version getHaleVersion() {
                                return null;
                            }

                            @Override
                            public String getDescription() {
                                return project.getDescription();
                            }

                            @Override
                            public Date getCreated() {
                                return null;
                            }

                            @Override
                            public String getAuthor() {
                                return project.getAuthor();
                            }
                        };
                        // project);
                        ((ProjectInfoAware) mappingDocExport).setProjectInfo(smallInfo);
                    }
                    mappingDocExport.execute(null);
                }
                mappingDoc.deleteOnExit();
            }
        } catch (Throwable e) {
            log.error("Error generating mapping documentation for example project", e);
            return null;
        } finally {
            trans.end();
        }
    }
    if (mappingDoc.exists()) {
        try {
            return new FileInputStream(mappingDoc);
        } catch (FileNotFoundException e) {
            return null;
        }
    } else
        return null;
}