yacy_search_server/htroot/js/Crawler.js

DELETE_STRING="delete";
BAR_IMG1="/env/grafics/green-block.png";
BAR_IMG2="/env/grafics/red-block.png";
WORDCACHEBAR_LENGTH=1/4;


var statusRPC;
var refreshInterval=3;
var wait=0;
var changing=false; //change the interval
var statusLoaded=true;

function initCrawler(){
    refresh();
    //loadInterval=window.setInterval("refresh()", refreshInterval*1000);
    countInterval=window.setInterval("countdown()", 1000);
}

function changeInterval(){
	if(!changing){
		window.clearInterval(countInterval);
		counter=document.getElementById("nextUpdate");
		//counter.innerHTML='<input type="text" id="newInterval" onblur="newInterval()" size="2" />';
		//document.getElementById("newInterval").focus();
		counter.value=refreshInterval;
		changing=true;
	}
}
function newInterval(){
	var newInterval=document.getElementById("nextUpdate").value;
        // make sure that only positive intervals can be set
        if(newInterval>0){
                refreshInterval=newInterval;
        }
	refresh();
	countInterval=window.setInterval("countdown()", 1000);
	changing=false;
}

function countdown(){
	if(statusLoaded){
        wait--;
		if (wait == 0) {
			refresh();
		}
	}
}

function refresh(){
	wait=refreshInterval;
	statusLoaded=false;
	requestStatus();
}

function requestStatus(){
	statusRPC=createRequestObject();
	statusRPC.open('get', '/api/status_p.xml?html=');
	statusRPC.onreadystatechange = handleStatus;
	statusRPC.send(null);
}

function handleStatus(){
    if(statusRPC.readyState != 4){
		return;
	}
	var statusResponse = statusRPC.responseXML;
	statusTag=getFirstChild(statusResponse, "status");
	
	ppm=getValue(getFirstChild(statusTag, "ppm"));
	
	var ppmNum = document.getElementById("ppmNum");
	removeAllChildren(ppmNum);
	ppmNum.appendChild(document.createTextNode(ppm));
	
	var ppmSpan = document.getElementById("ppmSpan");
	removeAllChildren(ppmSpan);
	for(i = 0; i < ppm / 10; i++){
		img=document.createElement("img");
		img.setAttribute("src", BAR_IMG1);
		ppmSpan.appendChild(img);
	}
	
	// traffic output (no bar up to now)
    traffic = getFirstChild(statusTag, "traffic");
    trafficCrawlerValue = getValue(getFirstChild(traffic, "crawler"));
    trafCrawlerSpan = document.getElementById("trafficCrawler");
    removeAllChildren(trafCrawlerSpan);
	trafCrawlerSpan.appendChild(document.createTextNode(Math.round((trafficCrawlerValue) / 1024 / 10.24) / 100));
    
	var wordCacheSize=getValue(getFirstChild(statusTag, "wordCacheSize"));
	var wordCacheMaxSize=getValue(getFirstChild(statusTag, "wordCacheMaxSize"));

	wordCacheNum=document.getElementById("wordcacheNum");
	removeAllChildren(wordCacheNum);
	wordCacheNum.appendChild(document.createTextNode(wordCacheSize+"/"+wordCacheMaxSize));
	
	wordCacheSpan=document.getElementById("wordcacheSpan");
	removeAllChildren(wordCacheSpan);
	var img;
	var percent=Math.round(wordCacheSize/wordCacheMaxSize*100);
	for(i=0;i<percent*WORDCACHEBAR_LENGTH;i++){
		img=document.createElement("img");
		img.setAttribute("src", BAR_IMG2);
		wordCacheSpan.appendChild(img);
	}
	for(i=0;i<(100-percent)*WORDCACHEBAR_LENGTH;i++){
		img=document.createElement("img");
		img.setAttribute("src", BAR_IMG1);
		wordCacheSpan.appendChild(img);
	}
	
	dbsize=getFirstChild(statusTag, "dbsize");
	urlpublictextSize=getValue(getFirstChild(dbsize, "urlpublictext"));
	rwipublictextSize=getValue(getFirstChild(dbsize, "rwipublictext"));
	document.getElementById("urldbsize").firstChild.nodeValue=urlpublictextSize;
	document.getElementById("rwidbsize").firstChild.nodeValue=rwipublictextSize;
	
	loaderqueue=getFirstChild(statusTag, "loaderqueue");	
	loaderqueue_size=getValue(getFirstChild(loaderqueue, "size"));
	loaderqueue_max=getValue(getFirstChild(loaderqueue, "max"));
	document.getElementById("loaderqueuesize").firstChild.nodeValue=loaderqueue_size;
	document.getElementById("loaderqueuemax").firstChild.nodeValue=loaderqueue_max;
	
	localcrawlerqueue=getFirstChild(statusTag, "localcrawlerqueue");
	localcrawlerqueue_size=getValue(getFirstChild(localcrawlerqueue, "size"));
	localcrawlerqueue_state=getValue(getFirstChild(localcrawlerqueue, "state"));
	document.getElementById("localcrawlerqueuesize").firstChild.nodeValue=localcrawlerqueue_size;
	putQueueState("localcrawler", localcrawlerqueue_state);
	
	limitcrawlerqueue=getFirstChild(statusTag, "limitcrawlerqueue");
	limitcrawlerqueue_size=getValue(getFirstChild(limitcrawlerqueue, "size"));
	limitcrawlerqueue_state=getValue(getFirstChild(limitcrawlerqueue, "state"));
	document.getElementById("limitcrawlerqueuesize").firstChild.nodeValue=limitcrawlerqueue_size;
	putQueueState("limitcrawler", limitcrawlerqueue_state);
	
	remotecrawlerqueue=getFirstChild(statusTag, "remotecrawlerqueue");
	remotecrawlerqueue_size=getValue(getFirstChild(remotecrawlerqueue, "size"));
	remotecrawlerqueue_state=getValue(getFirstChild(remotecrawlerqueue, "state"));
	document.getElementById("remotecrawlerqueuesize").firstChild.nodeValue=remotecrawlerqueue_size;
	putQueueState("remotecrawler", remotecrawlerqueue_state);
	
	noloadcrawlerqueue=getFirstChild(statusTag, "noloadcrawlerqueue");
	noloadcrawlerqueue_size=getValue(getFirstChild(noloadcrawlerqueue, "size"));
	noloadcrawlerqueue_state=getValue(getFirstChild(noloadcrawlerqueue, "state"));
	document.getElementById("noloadcrawlerqueuesize").firstChild.nodeValue=noloadcrawlerqueue_size;
	putQueueState("noloadcrawler", noloadcrawlerqueue_state);

	statusLoaded=true;
}

function putQueueState(queue, state) {
	a = document.getElementById(queue + "stateA");
	img = document.getElementById(queue + "stateIMG");
	if (state == "paused") {
		a.href = "Crawler_p.html?continue=" + queue;
		a.title = "Continue this queue (" + state + ")";
		img.src = "/env/grafics/start.gif";
		img.alt = "Continue this queue";
	} else {
		a.href = "Crawler_p.html?pause=" + queue;
		a.title = "Pause this queue (" + state + ")";
		img.src = "/env/grafics/stop.gif";
		img.alt = "Pause this queue";
	}
}


function shortenURL(url) {
	if (url.length > 80) {
		return url.substr(0, 80) + "...";
	} else {
		return url;
	}
}

function createIndexingRow(queue, profile, initiator, depth, modified, anchor, url, size, deletebutton){
    row=document.createElement("tr");
    row.setAttribute("height", 10);
    row.appendChild(createCol(queue));
    row.appendChild(createCol(profile));
	row.appendChild(createCol(initiator));
	row.appendChild(createCol(depth));
	row.appendChild(createCol(modified));
	row.appendChild(createCol(anchor));
	row.appendChild(createLinkCol(url, shortenURL(url)));
	row.appendChild(createCol(size));
	row.appendChild(deletebutton);
	return row;
}