- testings with image parser

- added image size as part of parsed text in images
- avoid unnecessary error messages if parsing of documents failed but one succeeded


git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6597 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/net/yacy/document/AbstractParser.java

@@ -232,4 +232,12 @@ public abstract class AbstractParser implements Idiom {
     public void reset() {
         this.contentLength = -1;
     }
+    
+    public boolean equals(Object o) {
+        return this.getName().equals(((Idiom) o).getName());
+    }
+    
+    public int hashCode() {
+        return this.getName().hashCode();
+    }
 }

source/net/yacy/document/Document.java

@@ -25,6 +25,7 @@ package net.yacy.document;
 
 import java.io.BufferedInputStream;
 import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
@@ -561,9 +562,12 @@ dc_rights
     
     public void writeXML(OutputStreamWriter os, Date date) throws IOException {
         os.write("<record>\n");
-        os.write("<dc:Title><![CDATA[" + this.dc_title() + "]]></dc:Title>\n");
+        String title = this.dc_title();
+        if (title != null && title.length() > 0) os.write("<dc:Title><![CDATA[" + this.dc_title() + "]]></dc:Title>\n");
         os.write("<dc:Identifier>" + this.dc_identifier() + "</dc:Identifier>\n");
-        os.write("<dc:Creator><![CDATA[" + this.dc_creator() + "]]></dc:Creator>\n");
+        String creator = this.dc_creator();
+        if (creator != null && creator.length() > 0) os.write("<dc:Creator><![CDATA[" + this.dc_creator() + "]]></dc:Creator>\n");
+        if (this.text != null) {
             os.write("<dc:Description><![CDATA[");
             byte[] buffer = new byte[1000];
             int c = 0;
@@ -571,11 +575,25 @@ dc_rights
             while ((c = is.read(buffer)) > 0) os.write(new String(buffer, 0, c));
             is.close();
             os.write("]]></dc:Description>\n");
-        os.write("<dc:Language>" + this.dc_language() + "</dc:Language>\n");
+        }
+        String language = this.dc_language();
+        if (language != null && language.length() > 0) os.write("<dc:Language>" + this.dc_language() + "</dc:Language>\n");
         os.write("<dc:Date>" + DateFormatter.formatISO8601(date) + "</dc:Date>\n");
         os.write("</record>\n");
     }
     
+    public String toString() {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        OutputStreamWriter osw = new OutputStreamWriter(baos);
+        try {
+            writeXML(osw, new Date());
+            osw.close();
+            return new String(baos.toByteArray(), "UTF-8");
+        } catch (IOException e) {
+            return "";
+        }
+    }
+    
     public void close() {
         // try close the output stream
         if (this.textStream != null) {

source/net/yacy/document/Idiom.java

@@ -109,6 +109,11 @@ public interface Idiom {
      * @return parser name
      */
     public String getName();
+    
+    public boolean equals(Object o);
+    
+    public int hashCode();
+    
 }
 
 

source/net/yacy/document/TextParser.java

@@ -33,6 +33,7 @@ import java.io.FileInputStream;
 import java.io.InputStream;
 import java.text.Collator;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
@@ -224,20 +225,31 @@ public final class TextParser {
         if (log.isFine()) log.logInfo("Parsing " + location + " with mimeType '" + mimeType + "' and file extension '" + fileExt + "'.");
         
         Document doc = null;
+        HashMap<Idiom, ParserException> failedParser = new HashMap<Idiom, ParserException>();
         for (Idiom parser: idioms) {
             parser.setContentLength(contentLength);
             try {
                 doc = parser.parse(location, mimeType, documentCharset, sourceStream);
             } catch (ParserException e) {
-                log.logWarning("tried parser '" + parser.getName() + "' to parse " + location.toNormalform(true, false) + " but failed: " + e.getMessage(), e);
+                failedParser.put(parser, e);
+                //log.logWarning("tried parser '" + parser.getName() + "' to parse " + location.toNormalform(true, false) + " but failed: " + e.getMessage(), e);
             }
             if (doc != null) break;
         }
         
         if (doc == null) {
+            if (failedParser.size() == 0) {
                 final String errorMsg = "Parsing content with file extension '" + location.getFileExtension() + "' and mimetype '" + mimeType + "' failed.";
-            log.logWarning("Unable to parse '" + location + "'. " + errorMsg);
+                //log.logWarning("Unable to parse '" + location + "'. " + errorMsg);
                 throw new ParserException(errorMsg, location);
+            } else {
+                String failedParsers = "";
+                for (Map.Entry<Idiom, ParserException> error: failedParser.entrySet()) {
+                    log.logWarning("tried parser '" + error.getKey().getName() + "' to parse " + location.toNormalform(true, false) + " but failed: " + error.getValue().getMessage(), error.getValue());
+                    failedParsers += error.getKey().getName() + " ";
+                }
+                throw new ParserException("All parser failed: " + failedParsers, location);
+            }
         }
         return doc;
     }

source/net/yacy/document/parser/images/genericImageParser.java

@@ -28,8 +28,12 @@ package net.yacy.document.parser.images;
 
 import java.awt.image.BufferedImage;
 import java.io.EOFException;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.io.InputStream;import java.util.HashMap;
+import java.io.InputStream;import java.net.MalformedURLException;
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -105,9 +109,13 @@ public class genericImageParser extends AbstractParser implements Idiom {
         String [] propNames = image.getPropertyNames();
         if (propNames == null) propNames = new String[0];
         StringBuilder sb = new StringBuilder(propNames.length * 80);
+        sb.append("\n");
         for (String propName: propNames) {
             sb.append(propName).append(" = ").append(image.getProperty(propName)).append(" .\n");
         }
+        // append also properties that we measured
+        sb.append("width").append(" = ").append(Integer.toString(width)).append(" .\n");
+        sb.append("height").append(" = ").append(Integer.toString(height)).append(" .\n");
         
         final HashSet<String> languages = new HashSet<String>();
         final HashMap<DigestURI, String> anchors = new HashMap<DigestURI, String>();
@@ -144,4 +152,23 @@ public class genericImageParser extends AbstractParser implements Idiom {
         return SUPPORTED_EXTENSIONS;
     }
     
+    public static void main(final String[] args) {
+        File image = new File(args[0]);
+        genericImageParser parser = new genericImageParser();
+        DigestURI uri;
+        try {
+            uri = new DigestURI("http://localhost/" + image.getName());
+            Document document = parser.parse(uri, "image/" + uri.getFileExtension(), "UTF-8", new FileInputStream(image));
+            System.out.println(document.toString());
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (ParserException e) {
+            e.printStackTrace();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+    
 }