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Complete initial Tika-ification of the metadata extractor

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The remaining extractors to be converted to Tika now have been, tests have
 been included for the image metadata extraction, and some extension points
 for future extractors have been created.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@20669 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Nick Burch
2010-06-16 16:19:38 +00:00
parent 0e19812dbc
commit 62f07a8661
10 changed files with 295 additions and 252 deletions
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54
source/java/org/alfresco/repo/content/metadata/TikaAutoMetadataExtracterTest.java
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@@ -30,8 +30,9 @@ import java.util.Map;
import java.util.Set;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.content.MimetypeMap;
import org.alfresco.repo.content.filestore.FileContentReader;
import org.alfresco.repo.content.transform.AbstractContentTransformerTest;
import org.alfresco.service.cmr.repository.ContentReader;
import org.alfresco.service.cmr.repository.datatype.DefaultTypeConverter;
import org.alfresco.service.namespace.QName;
import org.apache.tika.metadata.Metadata;
@@ -39,7 +40,6 @@ import org.apache.tika.mime.MediaType;
import org.apache.tika.parser.AutoDetectParser;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.Parser;
import org.apache.tika.parser.dwg.DWGParser;
import org.apache.tika.parser.microsoft.OfficeParser;
import org.apache.tika.parser.microsoft.ooxml.OOXMLParser;
import org.apache.tika.parser.mp3.Mp3Parser;
@@ -181,5 +181,53 @@ public class TikaAutoMetadataExtracterTest extends AbstractMetadataExtracterTest
// mimetype,
// DefaultTypeConverter.INSTANCE.convert(String.class, properties.get(TIKA_MIMETYPE_TEST_PROPERTY)));
}
/**
* We don't have explicit extractors for most image and video formats.
* Instead, these will be handled by the Auto Tika Parser, and
* this test ensures that they are
*/
public void testImageVideo() throws Throwable {
Map<String, Serializable> p;
// Image
p = openAndCheck(".jpg", "image/jpeg");
assertEquals("409 pixels", p.get("Image Width"));
assertEquals("92 pixels", p.get("Image Height"));
assertEquals("8 bits", p.get("Data Precision"));
p = openAndCheck(".gif", "image/gif");
assertEquals("409", p.get("width"));
assertEquals("92", p.get("height"));
p = openAndCheck(".png", "image/png");
assertEquals("409", p.get("width"));
assertEquals("92", p.get("height"));
assertEquals("8 8 8", p.get("Data BitsPerSample"));
assertEquals("none", p.get("Transparency Alpha"));
p = openAndCheck(".bmp", "image/bmp");
assertEquals("409", p.get("width"));
assertEquals("92", p.get("height"));
assertEquals("8 8 8", p.get("Data BitsPerSample"));
}
private Map<String, Serializable> openAndCheck(String fileBase, String expMimeType) throws Throwable {
String filename = "quick" + fileBase;
URL url = AbstractContentTransformerTest.class.getClassLoader().getResource("quick/" + filename);
File file = new File(url.getFile());
// Cheat and ask Tika for the mime type!
AutoDetectParser ap = new AutoDetectParser();
Metadata metadata = new Metadata();
metadata.set(Metadata.RESOURCE_NAME_KEY, filename);
MediaType mt = ap.getDetector().detect(
new BufferedInputStream(new FileInputStream(file)), metadata);
String mimetype = mt.toString();
assertEquals("Wrong mimetype for " + fileBase, mimetype, expMimeType);
ContentReader sourceReader = new FileContentReader(file);
sourceReader.setMimetype(mimetype);
return extracter.extractRaw(sourceReader);
}
}