-implemented a specialized snippet-fetch for media content

-changed search result preparation for media search presentation

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3073 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/js/xml.js

@@ -4,6 +4,7 @@ function removeAllChildren(element){
 	}
 	child=element.firstChild;
 	while(child!=null){
+		removeAllChildren(child);
 		element.removeChild(child);
 		child=element.firstChild;
 	}

htroot/js/yacysearch.js

@@ -10,14 +10,14 @@ function AllTextSnippets() {
 	}
 }
 
-function AllAudioSnippets() {
+function AllMediaSnippets() {
     var query = document.getElementsByName("former")[0].value;
     
 	var span = document.getElementsByTagName("span");
 	for(var x=0;x<span.length;x++) {
 		if (span[x].className == 'snippetLoading') {
 				var url = document.getElementById("url" + span[x].id);
-				requestAudioSnippet(url,query);
+				requestMediaSnippet(url,query);
 		}
 	}
 }
@@ -29,10 +29,10 @@ function requestTextSnippet(url, query){
 	request.send(null);
 }
 
-function requestAudioSnippet(url, query){
+function requestMediaSnippet(url, query){
 	var request=createRequestObject();
 	request.open('get', '/xml/snippet.xml?url=' + escape(url) + '&remove=true&media=audio&search=' + escape(query),true);
-	request.onreadystatechange = function () {handleAudioState(request)};
+	request.onreadystatechange = function () {handleMediaState(request)};
 	request.send(null);
 }
 
@@ -46,7 +46,6 @@ function handleTextState(req) {
 	var snippetText = response.getElementsByTagName("text")[0].firstChild.data;
 	var urlHash = response.getElementsByTagName("urlHash")[0].firstChild.data;
 	var status = response.getElementsByTagName("status")[0].firstChild.data;
-	var links = response.getElementsByTagName("links")[0].firstChild.data;
 	
 	var span = document.getElementById(urlHash)
 	removeAllChildren(span);
@@ -54,10 +53,8 @@ function handleTextState(req) {
 	
 	if (status < 11) {
 		span.className = "snippetLoaded";
-		//span.setAttribute("class", "snippetLoaded");
 	} else {
 		span.className = "snippetError";
-		//span.setAttribute("class", "snippetError");
 	}
 
 	// replace "<b>" text by <strong> node
@@ -79,37 +76,23 @@ function handleTextState(req) {
 		pos2=snippetText.indexOf("</b>");
 	}
 	
-	if (links > 0) {
-		for (i = 0; i < links; i++) {
-			var type = response.getElementsByTagName("type")[i].firstChild.data;
-			var href = response.getElementsByTagName("href")[i].firstChild.data;
-			var name = response.getElementsByTagName("name")[i].firstChild.data;
-			var attr = response.getElementsByTagName("attr")[i].firstChild.data;
-			span.appendChild(document.createElement("br"));
-			var anchor = document.createElement("a");
-			var hrefattr = document.createAttribute("href");
-			hrefattr.nodeValue = href;
-			anchor.setAttributeNode(hrefattr);
-			anchor.appendChild(document.createTextNode(name));
-			span.appendChild(anchor);
-		}
-	}
-	
 	// add remaining string
 	if (snippetText != "") {
 		span.appendChild(document.createTextNode(snippetText));
 	}
 }
 
-function handleAudioState(req) {
+function handleMediaState(req) {
     if(req.readyState != 4){
 		return;
 	}
 	
 	var response = req.responseXML;
+	var urlHash = response.getElementsByTagName("urlHash")[0].firstChild.data;
 	var links = response.getElementsByTagName("links")[0].firstChild.data;
+	var span = document.getElementById(urlHash)
+	removeAllChildren(span);
 	
-	var snippetText = "";
 	if (links > 0) {
 		span.className = "snippetLoaded";
 		for (i = 0; i < links; i++) {
@@ -117,12 +100,39 @@ function handleAudioState(req) {
 			var href = response.getElementsByTagName("href")[i].firstChild.data;
 			var name = response.getElementsByTagName("name")[i].firstChild.data;
 			var attr = response.getElementsByTagName("attr")[i].firstChild.data;
+
+			var nameanchor = document.createElement("a");
+			nameanchor.setAttribute("href", href);
+			nameanchor.appendChild(document.createTextNode(name));
+			
+			var linkanchor = document.createElement("a");
+			linkanchor.setAttribute("href", href);
+			linkanchor.appendChild(document.createTextNode(href));
+			
+			var col1 = document.createElement("td");
+			var width1 = document.createAttribute("width");
+			width1.nodeValue = 200;
+			col1.setAttributeNode(width1);
+			col1.appendChild(nameanchor);
+			var col2 = document.createElement("td");
+			var width2 = document.createAttribute("width");
+			width2.nodeValue = 500;
+			col2.setAttributeNode(width2);
+			col2.appendChild(linkanchor);
+			
+			var row = document.createElement("tr");
+			row.setAttribute("class", "TableCellDark");
+			row.appendChild(col1);
+			row.appendChild(col2);
+
+			var table = document.createElement("table");
+			table.appendChild(row);
+			span.appendChild(table);
 		}
 	} else {
 		span.className = "snippetError";
+		span.appendChild(document.createTextNode(""));
 	}
-	
-	span.appendChild(document.createTextNode(snippetText));
 }
 
 function addHover() {

htroot/xml/snippet.java

@@ -64,7 +64,7 @@ public class snippet {
         
 
         // attach link information
-        ArrayList mediaSnippets = switchboard.snippetCache.retrieveMediaSnippets(url, queryHashes, false, 1000);
+        ArrayList mediaSnippets = switchboard.snippetCache.retrieveMediaSnippets(url, queryHashes, true, 1000);
         plasmaSnippetCache.MediaSnippet ms;
         for (int i = 0; i < mediaSnippets.size(); i++) {
             ms = (plasmaSnippetCache.MediaSnippet) mediaSnippets.get(i);
@@ -73,7 +73,7 @@ public class snippet {
             prop.put("link_" + i + "_name", ms.name);
             prop.put("link_" + i + "_attr", ms.attr);
         }
-        System.out.println("DEBUG: " + mediaSnippets.size() + " ENTRIES IN MEDIA SNIPPET LINKS");
+        System.out.println("DEBUG: " + mediaSnippets.size() + " ENTRIES IN MEDIA SNIPPET LINKS for url " + urlString);
         prop.put("link", mediaSnippets.size());
         prop.put("links", mediaSnippets.size());
         

htroot/yacysearch.html

@@ -56,6 +56,7 @@ document.searchform.Enter.value = "search again - catch up more links";
 </script>
 
 #(type)#
+<!-- type 0: text search -->
 #(excluded)#
 ::
 <p><strong>The following words are stop-words and had been excluded from the search: #[stopwords]#.</strong></p>
@@ -144,7 +145,50 @@ You can enrich the search results by using the 'global' option; you must also sw
 (by using the proxy) to contribute to the global index.
 #(/resultbottomline)#
 </p>
+::<!-- type 1: media search -->
+#(excluded)#
+::
+<p><strong>The following words are stop-words and had been excluded from the search: #[stopwords]#.</strong></p>
+#(/excluded)#
+#(num-results)#
+::
+<p>No Results.</p>
+::
+<p>No Results. (length of search words must be at least 3 characters)</p>
 ::
+<p>No Results. If you think this is unsatisfactory then you may consider to support the global index by running your own proxy/peer.
+If everybody contributes, the results will get better.</p>
+<p>Other possible reasons for no result:<p>
+<ul>
+<li>The search time was too short. Search again with same query to catch up 'late peers'</li>
+<li>There is currently no support for german umlaute. Please use ae/oe/ue instead</li>
+<li>Words of length &lt; 3 are not indexed. Please omit such words</li>
+<li>YaCy tries to index singular instead of plural words. Please use the singular form</li>
+<li>Only complete words are indexed, not parts of words</li>
+<li>Don't use stopwords as search words</li>
+<li>During this test phase the reaction time of remote peers is unknown.
+Please repeat your search to see if there are late-responses from remote peers</li>
+</ul>
+<p>If you think the information you searched should exist in the global index,
+then please run your own peer and start a crawl of your wanted information to make it
+available for everyone. Then stay online to support crawls from other peers. Thank you!</p>
+::
+<p><strong>#[linkcount]#</strong> results from <strong>#[orderedcount]#</strong> ordered links of a total number of <strong>#[totalcount]#</strong> known.</p>
+#(/num-results)#
+<!-- linklist begin -->
+#{results}#
+<!-- link begin -->
+    <span class="snippetLoading" id="#[urlhash]#">loading snippet from <a href="#[url]#" id="url#[urlhash]#">#[urlname]#</a><br /></span>
+<!-- link end -->
+#{/results}#
+<script type="text/javascript">
+AllMediaSnippets();
+addHover();
+</script> 
+
+<!-- linklist end -->
+::<!-- type 2: image serch: presents image thumbnails -->
+::<!-- type 3: image thumbnail list for one single url -->
 <table border="0" cellspacing="16" cellpadding="0">
 #{results}#
 <tr valign="bottom">
@@ -157,39 +201,13 @@ You can enrich the search results by using the 'global' option; you must also sw
 #{/results}#
 </table>
 #(/type)#
-         <p class="info">YaCy is a GPL'ed project
+<p class="info">
-           with the target of implementing a P2P-based global search engine.<br />
+YaCy is a GPL'ed project with the target of implementing a P2P-based global search engine.<br />
-           Architecture (C) by Michael Peter Christen,
+Architecture (C) by Michael Peter Christen, <img src="/env/grafics/mcemailh.gif" alt="Mail-Adresse von Michael Peter Christen" />
-<img src="/env/grafics/mcemailh.gif" alt="Mail-Adresse von Michael Peter Christen" /></p>
+</p>
 #(display)#
 #%env/templates/simplefooter.template%#
 ::
-<p><strong>Refine your search with these topwords</strong>:</p>
-<p>
-#{words}#
-<a href="yacysearch.html?search=#[newsearch]#&amp;Enter=Search&amp;count=#[count]#&amp;order=#[order]#&amp;resource=#[resource]#&amp;time=#[time]#">#[word]#</a>
-#{/words}#
-</p>
-#(/combine)#
-<!-- linklist begin -->
-
-#{results}#
-<!-- link begin -->
-     <div class="searchresults">
-       <p class="snippet"><span class="#(snippet)#snippetLoading::snippetLoaded#(/snippet)#" id="#[urlhash]#">#(snippet)#loading snippet ...::#[text]##(/snippet)#</span></p>
-     </div>
-<!-- link end -->
-#{/results}#
-
-<script type="text/javascript">
-AllTextSnippets();
-addHover();
-</script> 
-
-<!-- linklist end -->
-<p>
-#(resultbottomline)#
-::
 #%env/templates/footer.template%#
 #(/display)#
 

htroot/yacysearch.java

@@ -144,7 +144,7 @@ public class yacysearch {
         }
         if (sb.facilityDB != null) try { sb.facilityDB.update("zeitgeist", querystring, post); } catch (Exception e) {}
 
-        final int count = Integer.parseInt(post.get("count", "10"));
+        int count = Integer.parseInt(post.get("count", "10"));
         final String order = post.get("order", plasmaSearchPreOrder.canUseYBR() ? "YBR-Date-Quality" : "Date-Quality-YBR");
         boolean global = (post == null) ? true : post.get("resource", "global").equals("global");
         final boolean indexof = post.get("indexof","").equals("on"); 
@@ -178,6 +178,9 @@ public class yacysearch {
         if (cds.equals("image")) contentdom = plasmaSearchQuery.CONTENTDOM_IMAGE;
         if (cds.equals("app")) contentdom = plasmaSearchQuery.CONTENTDOM_APP;
         
+        // patch until better search profiles are available
+        if ((contentdom != plasmaSearchQuery.CONTENTDOM_TEXT) && (count <= 10)) count = 50;
+        
         serverObjects prop = new serverObjects();
         if (post.get("cat", "href").equals("href")) {
 
@@ -368,7 +371,7 @@ public class yacysearch {
                 }
             }
 
-            prop.put("type", "0");
+            prop.put("type", (thisSearch.contentdom == plasmaSearchQuery.CONTENTDOM_TEXT) ? 0 : 1);
             prop.put("cat", "href");
             prop.put("depth", "0");
 
@@ -406,7 +409,7 @@ public class yacysearch {
             }
             prop.put("type_results", line);
 
-            prop.put("type", 1); // set type of result: image list
+            prop.put("type", 3); // set type of result: image list
             prop.put("cat", "href");
             prop.put("depth", depth);
         }

source/de/anomic/plasma/plasmaParser.java

@@ -172,8 +172,8 @@ public final class plasmaParser {
      * @see #initMediaExt(String)
      */
     static {
-        String apps = "sit,hqx,img,dmg,exe,com,bat,sh";
+        String apps = "sit,hqx,img,dmg,exe,com,bat,sh,zip,jar";
-        String audio = "mp2,mp3,ogg,aac,aif,aiff,wav";
+        String audio = "mp2,mp3,ogg,aac,aif,aiff,wav,ogg";
         String video = "swf,avi,wmv,rm,mov,mpg,mpeg,ram,m4v";
         String image = "jpg,jpeg,jpe,gif,png";
         initMediaExt(extString2extList(

source/de/anomic/plasma/plasmaSnippetCache.java

@@ -212,6 +212,8 @@ public class plasmaSnippetCache {
             this.href = href;
             this.name = name;
             this.attr = attr;
+            if ((this.name == null) || (this.name.length() == 0)) this.name = "_";
+            if ((this.attr == null) || (this.attr.length() == 0)) this.attr = "_";
         }
     }
     
@@ -623,12 +625,12 @@ public class plasmaSnippetCache {
             //result.add(new MediaSnippet(mediatype, url, (desc.length() == 0) ? url : desc, null));
             s = removeAppearanceHashes(url, queryhashes);
             if (s.size() == 0) {
-                result.add(new MediaSnippet(mediatype, url, (desc.length() == 0) ? url : desc, null));
+                result.add(new MediaSnippet(mediatype, url, desc, null));
                 continue;
             }
             s = removeAppearanceHashes(desc, s);
             if (s.size() == 0) {
-                result.add(new MediaSnippet(mediatype, url, (desc.length() == 0) ? url : desc, null));
+                result.add(new MediaSnippet(mediatype, url, desc, null));
                 continue;
             }
         }
@@ -651,12 +653,12 @@ public class plasmaSnippetCache {
             //result.add(new MediaSnippet("image", url, (desc.length() == 0) ? url : desc, ientry.width() + " x " + ientry.height()));
             s = removeAppearanceHashes(url, queryhashes);
             if (s.size() == 0) {
-                result.add(new MediaSnippet("image", url, (desc.length() == 0) ? url : desc, ientry.width() + " x " + ientry.height()));
+                result.add(new MediaSnippet("image", url, desc, ientry.width() + " x " + ientry.height()));
                 continue;
             }
             s = removeAppearanceHashes(desc, s);
             if (s.size() == 0) {
-                result.add(new MediaSnippet("image", url, (desc.length() == 0) ? url : desc, ientry.width() + " x " + ientry.height()));
+                result.add(new MediaSnippet("image", url, desc, ientry.width() + " x " + ientry.height()));
                 continue;
             }
         }

yacy.init

@@ -188,7 +188,7 @@ parseableMimeTypes.URLREDIRECTOR=
 # a comma-separated list of extensions that denote media file formats
 # this is important to recognize <a href> - tags as not-html reference
 # These files will be excluded from indexing _(Please keep extensions in alphabetical order)_
-mediaExt=7z,ace,aif,aiff,arj,asf,asx,avi,bin,bz2,css,db,dcm,deb,doc,dll,dmg,gif,gz,hqx,ico,img,iso,jar,jpe,jpg,jpeg,lx,lxl,m4v,mpeg,mov,mp3,mpg,ogg,png,pdf,ppt,ps,ram,rar,rm,rpm,scr,sit,so,swf,sxc,sxd,sxi,sxw,tar,tbz,tgz,torrent,war,wav,wmv,xcf,xls,zip
+mediaExt=7z,ace,aif,aiff,arj,asf,asx,avi,bin,bz2,css,db,dcm,deb,doc,dll,dmg,exe,gif,gz,hqx,ico,img,iso,jar,jpe,jpg,jpeg,lx,lxl,m4v,mpeg,mov,mp3,mpg,ogg,png,pdf,ppt,ps,ram,rar,rm,rpm,scr,sit,so,swf,sxc,sxd,sxi,sxw,tar,tbz,tgz,torrent,war,wav,wmv,xcf,xls,zip
 parseableExt=html,htm,txt,php,shtml,asp,aspx,jsp
 
 # Promotion Strings