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yacy_search_server
mirror of https://github.com/yacy/yacy_search_server
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next try to fix loading of network picture

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git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7061 6c8d7289-2bf4-0310-a012-ef5d649a1542
pull/1/head
orbiter 15 years ago
parent 661867923a
commit dcd9065c84
1 changed files with 47 additions and 48 deletions
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89
htroot/NetworkPicture.java
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@ -39,7 +39,7 @@ import de.anomic.yacy.graphics.NetworkGraph;
/** draw a picture of the yacy network */
public class NetworkPicture {
private static final Semaphore sync = new Semaphore(1);
private static final Semaphore sync = new Semaphore(1, true);
private static EncodedImage buffer = null;
private static long lastAccessSeconds = 0;
@ -49,57 +49,56 @@ public class NetworkPicture {
long timeSeconds = System.currentTimeMillis() / 1000;
if (buffer != null && !authorized && timeSeconds - lastAccessSeconds < 2) {
//System.out.println("*** NetworkPicture: cache hit (1)");
Log.logInfo("NetworkPicture", "cache hit (1); authorized = " + (authorized ? "true" : "false") + ", timeSeconds - lastAccessSeconds = " + (timeSeconds - lastAccessSeconds));
return buffer;
}
if (buffer != null && sync.availablePermits() == 0) return buffer;
try {
sync.acquire();
if (buffer != null && !authorized && timeSeconds - lastAccessSeconds < 2) {
//System.out.println("*** NetworkPicture: cache hit (2)");
sync.release();
return buffer;
}
int width = 768;
int height = 576;
int passiveLimit = 720; // 12 hours
int potentialLimit = 720;
int maxCount = 1000;
String bgcolor = NetworkGraph.COL_BACKGROUND;
boolean corona = true;
int coronaangle = 0;
long communicationTimeout = -1;
sync.acquireUninterruptibly();
if (buffer != null && !authorized && timeSeconds - lastAccessSeconds < 2) {
Log.logInfo("NetworkPicture", "cache hit (2); authorized = " + (authorized ? "true" : "false") + ", timeSeconds - lastAccessSeconds = " + (timeSeconds - lastAccessSeconds));
sync.release();
return buffer;
}
if (post != null) {
width = post.getInt("width", 768);
height = post.getInt("height", 576);
passiveLimit = post.getInt("pal", 1440);
potentialLimit = post.getInt("pol", 1440);
maxCount = post.getInt("max", 1000);
corona = post.get("corona", "true").equals("true");
coronaangle = (corona) ? post.getInt("coronaangle", 0) : -1;
communicationTimeout = post.getLong("ct", -1);
bgcolor = post.get("bgcolor", bgcolor);
}
int width = 768;
int height = 576;
int passiveLimit = 720; // 12 hours
int potentialLimit = 720;
int maxCount = 1000;
String bgcolor = NetworkGraph.COL_BACKGROUND;
boolean corona = true;
int coronaangle = 0;
long communicationTimeout = -1;
//too small values lead to an error, too big to huge CPU/memory consumption, resulting in possible DOS.
if (width < 320 ) width = 320;
if (width > 1920) width = 1920;
if (height < 240) height = 240;
if (height > 1920) height = 1920;
if (!authorized) {
width = Math.min(768, width);
height = Math.min(576, height);
}
if (passiveLimit > 1000000) passiveLimit = 1000000;
if (potentialLimit > 1000000) potentialLimit = 1000000;
if (maxCount > 10000) maxCount = 10000;
buffer = new EncodedImage(NetworkGraph.getNetworkPicture(sb.peers, 10000, width, height, passiveLimit, potentialLimit, maxCount, coronaangle, communicationTimeout, env.getConfig(SwitchboardConstants.NETWORK_NAME, "unspecified"), env.getConfig("network.unit.description", "unspecified"), bgcolor).getImage(), "png");
lastAccessSeconds = System.currentTimeMillis() / 1000;
if (post != null) {
width = post.getInt("width", 768);
height = post.getInt("height", 576);
passiveLimit = post.getInt("pal", 1440);
potentialLimit = post.getInt("pol", 1440);
maxCount = post.getInt("max", 1000);
corona = post.get("corona", "true").equals("true");
coronaangle = (corona) ? post.getInt("coronaangle", 0) : -1;
communicationTimeout = post.getLong("ct", -1);
bgcolor = post.get("bgcolor", bgcolor);
}
} catch (Exception e) {
Log.logException(e);
//too small values lead to an error, too big to huge CPU/memory consumption, resulting in possible DOS.
if (width < 320 ) width = 320;
if (width > 1920) width = 1920;
if (height < 240) height = 240;
if (height > 1920) height = 1920;
if (!authorized) {
width = Math.min(768, width);
height = Math.min(576, height);
}
if (passiveLimit > 1000000) passiveLimit = 1000000;
if (potentialLimit > 1000000) potentialLimit = 1000000;
if (maxCount > 10000) maxCount = 10000;
buffer = new EncodedImage(NetworkGraph.getNetworkPicture(sb.peers, 10000, width, height, passiveLimit, potentialLimit, maxCount, coronaangle, communicationTimeout, env.getConfig(SwitchboardConstants.NETWORK_NAME, "unspecified"), env.getConfig("network.unit.description", "unspecified"), bgcolor).getImage(), "png");
lastAccessSeconds = System.currentTimeMillis() / 1000;
sync.release();
return buffer;
}

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