| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.tika.parser.sas; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.text.Format; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import com.epam.parso.Column; |
| import com.epam.parso.DataWriterUtil; |
| import com.epam.parso.SasFileProperties; |
| import com.epam.parso.SasFileReader; |
| import com.epam.parso.impl.SasFileReaderImpl; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.SAXException; |
| |
| import org.apache.tika.exception.TikaException; |
| import org.apache.tika.metadata.Database; |
| import org.apache.tika.metadata.HttpHeaders; |
| import org.apache.tika.metadata.MachineMetadata; |
| import org.apache.tika.metadata.Metadata; |
| import org.apache.tika.metadata.OfficeOpenXMLExtended; |
| import org.apache.tika.metadata.PagedText; |
| import org.apache.tika.metadata.TikaCoreProperties; |
| import org.apache.tika.mime.MediaType; |
| import org.apache.tika.parser.AbstractParser; |
| import org.apache.tika.parser.ParseContext; |
| import org.apache.tika.sax.XHTMLContentHandler; |
| |
| /** |
| * Processes the SAS7BDAT data columnar database file used by SAS and |
| * other similar languages. |
| */ |
| public class SAS7BDATParser extends AbstractParser { |
| private static final long serialVersionUID = -2775485539937983150L; |
| |
| private static final MediaType TYPE_SAS7BDAT = MediaType.application("x-sas-data"); |
| private static final Set<MediaType> SUPPORTED_TYPES = Collections.singleton(TYPE_SAS7BDAT); |
| |
| @Override |
| public Set<MediaType> getSupportedTypes(ParseContext context) { |
| return SUPPORTED_TYPES; |
| } |
| |
| @Override |
| public void parse(InputStream stream, ContentHandler handler, Metadata metadata, |
| ParseContext context) throws IOException, SAXException, TikaException { |
| metadata.set(Metadata.CONTENT_TYPE, TYPE_SAS7BDAT.toString()); |
| |
| XHTMLContentHandler xhtml = new XHTMLContentHandler(handler, metadata); |
| xhtml.startDocument(); |
| |
| SasFileReader sas = new SasFileReaderImpl(stream); |
| SasFileProperties props = sas.getSasFileProperties(); |
| |
| // Record the interesting parts of the file's metadata |
| metadata.set(TikaCoreProperties.TITLE, props.getName()); |
| metadata.set(TikaCoreProperties.CREATED, props.getDateCreated()); |
| metadata.set(TikaCoreProperties.MODIFIED, props.getDateModified()); |
| |
| metadata.set(PagedText.N_PAGES, (int) props.getPageCount()); |
| metadata.set(Database.COLUMN_COUNT, (int) props.getColumnsCount()); |
| metadata.set(Database.ROW_COUNT, (int) props.getRowCount()); |
| |
| // TODO Can we find more general properties for these / move |
| // these to more general places? |
| metadata.set(HttpHeaders.CONTENT_ENCODING, props.getEncoding()); |
| metadata.set(OfficeOpenXMLExtended.APPLICATION, props.getServerType()); |
| metadata.set(OfficeOpenXMLExtended.APP_VERSION, props.getSasRelease()); |
| metadata.set(MachineMetadata.ARCHITECTURE_BITS, props.isU64() ? "64" : "32"); |
| metadata.set(MachineMetadata.ENDIAN, |
| props.getEndianness() == 1 ? MachineMetadata.Endian.LITTLE.getName() : |
| MachineMetadata.Endian.BIG.getName()); |
| |
| // The following SAS Metadata fields are currently ignored: |
| // compressionMethod |
| // sessionEncoding |
| // fileType |
| // osName - |
| // osType - |
| // mixPageRowCount |
| // headerLength |
| // pageLength |
| // rowLength |
| |
| // Process the column metadata |
| // TODO Find keys to record the format and the type |
| for (Column c : sas.getColumns()) { |
| String name = c.getLabel(); |
| if (name == null || name.isEmpty()) { |
| name = c.getName(); |
| } |
| metadata.add(Database.COLUMN_NAME, name); |
| } |
| |
| |
| // Output file contents as a table |
| xhtml.element("h1", props.getName()); |
| xhtml.startElement("table"); |
| xhtml.newline(); |
| |
| // Do the column headings |
| xhtml.startElement("tr"); |
| for (Column c : sas.getColumns()) { |
| String label = c.getLabel(); |
| if (label == null || label.isEmpty()) { |
| label = c.getName(); |
| } |
| |
| xhtml.startElement("th", "title", c.getName()); |
| xhtml.characters(label); |
| xhtml.endElement("th"); |
| } |
| xhtml.endElement("tr"); |
| xhtml.newline(); |
| |
| //TODO: initialize this on the first row and then apply |
| Map<Integer, Format> formatMap = new HashMap<>(); |
| |
| // Process each row in turn |
| Object[] row = null; |
| while ((row = sas.readNext()) != null) { |
| xhtml.startElement("tr"); |
| for (String val : DataWriterUtil.getRowValues(sas.getColumns(), row, formatMap)) { |
| // Use explicit start/end, rather than element, to |
| // ensure that empty cells still get output |
| xhtml.startElement("td"); |
| xhtml.characters(val); |
| xhtml.endElement("td"); |
| } |
| xhtml.endElement("tr"); |
| xhtml.newline(); |
| } |
| |
| // Finish |
| xhtml.endElement("table"); |
| xhtml.endDocument(); |
| } |
| } |