/*
- * FreenetSone - SoneInserter.java - Copyright © 2010 David Roden
+ * Sone - SoneInserter.java - Copyright © 2010–2013 David Roden
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
package net.pterodactylus.sone.core;
+import static com.google.common.base.Preconditions.checkArgument;
+import static net.pterodactylus.sone.data.Album.NOT_EMPTY;
+
import java.io.InputStreamReader;
import java.io.StringWriter;
import java.nio.charset.Charset;
-import java.util.ArrayList;
-import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
-import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
-import net.pterodactylus.sone.core.Core.SoneStatus;
+import net.pterodactylus.sone.core.event.SoneInsertAbortedEvent;
+import net.pterodactylus.sone.core.event.SoneInsertedEvent;
+import net.pterodactylus.sone.core.event.SoneInsertingEvent;
+import net.pterodactylus.sone.data.Album;
import net.pterodactylus.sone.data.Post;
import net.pterodactylus.sone.data.Reply;
import net.pterodactylus.sone.data.Sone;
+import net.pterodactylus.sone.data.Sone.SoneStatus;
import net.pterodactylus.sone.freenet.StringBucket;
-import net.pterodactylus.util.filter.Filter;
-import net.pterodactylus.util.filter.Filters;
+import net.pterodactylus.sone.main.SonePlugin;
import net.pterodactylus.util.io.Closer;
import net.pterodactylus.util.logging.Logging;
import net.pterodactylus.util.service.AbstractService;
-import net.pterodactylus.util.template.DefaultTemplateFactory;
+import net.pterodactylus.util.template.HtmlFilter;
import net.pterodactylus.util.template.ReflectionAccessor;
import net.pterodactylus.util.template.Template;
+import net.pterodactylus.util.template.TemplateContext;
+import net.pterodactylus.util.template.TemplateContextFactory;
import net.pterodactylus.util.template.TemplateException;
+import net.pterodactylus.util.template.TemplateParser;
import net.pterodactylus.util.template.XmlFilter;
+
+import com.google.common.collect.FluentIterable;
+import com.google.common.collect.Ordering;
+import com.google.common.eventbus.EventBus;
+
import freenet.client.async.ManifestElement;
import freenet.keys.FreenetURI;
private static volatile int insertionDelay = 60;
/** The template factory used to create the templates. */
- private static final DefaultTemplateFactory templateFactory = new DefaultTemplateFactory();
+ private static final TemplateContextFactory templateContextFactory = new TemplateContextFactory();
static {
- templateFactory.addAccessor(Object.class, new ReflectionAccessor());
- templateFactory.addFilter("xml", new XmlFilter());
+ templateContextFactory.addAccessor(Object.class, new ReflectionAccessor());
+ templateContextFactory.addFilter("xml", new XmlFilter());
+ templateContextFactory.addFilter("html", new HtmlFilter());
}
/** The UTF-8 charset. */
/** The core. */
private final Core core;
+ /** The event bus. */
+ private final EventBus eventBus;
+
/** The Freenet interface. */
private final FreenetInterface freenetInterface;
/** The Sone to insert. */
- private final Sone sone;
+ private volatile Sone sone;
+
+ /** Whether a modification has been detected. */
+ private volatile boolean modified = false;
+
+ /** The fingerprint of the last insert. */
+ private volatile String lastInsertFingerprint;
/**
* Creates a new Sone inserter.
*
* @param core
* The core
+ * @param eventBus
+ * The event bus
* @param freenetInterface
* The freenet interface
* @param sone
* The Sone to insert
*/
- public SoneInserter(Core core, FreenetInterface freenetInterface, Sone sone) {
+ public SoneInserter(Core core, EventBus eventBus, FreenetInterface freenetInterface, Sone sone) {
super("Sone Inserter for “" + sone.getName() + "”", false);
this.core = core;
+ this.eventBus = eventBus;
this.freenetInterface = freenetInterface;
this.sone = sone;
}
//
/**
- * Changes the insertion delay, i.e. the time the Sone inserter waits after
- * it has noticed a Sone modification before it starts the insert.
+ * Sets the Sone to insert.
+ *
+ * @param sone
+ * The Sone to insert
+ * @return This Sone inserter
+ */
+ public SoneInserter setSone(Sone sone) {
+ checkArgument((this.sone == null) || sone.equals(this.sone), "Sone to insert can not be set to a different Sone");
+ this.sone = sone;
+ return this;
+ }
+
+ /**
+ * Changes the insertion delay, i.e. the time the Sone inserter waits after it
+ * has noticed a Sone modification before it starts the insert.
*
* @param insertionDelay
* The insertion delay (in seconds)
SoneInserter.insertionDelay = insertionDelay;
}
+ /**
+ * Returns the fingerprint of the last insert.
+ *
+ * @return The fingerprint of the last insert
+ */
+ public String getLastInsertFingerprint() {
+ return lastInsertFingerprint;
+ }
+
+ /**
+ * Sets the fingerprint of the last insert.
+ *
+ * @param lastInsertFingerprint
+ * The fingerprint of the last insert
+ */
+ public void setLastInsertFingerprint(String lastInsertFingerprint) {
+ this.lastInsertFingerprint = lastInsertFingerprint;
+ }
+
+ /**
+ * Returns whether the Sone inserter has detected a modification of the
+ * Sone.
+ *
+ * @return {@code true} if the Sone has been modified, {@code false}
+ * otherwise
+ */
+ public boolean isModified() {
+ return modified;
+ }
+
//
// SERVICE METHODS
//
*/
@Override
protected void serviceRun() {
- long modificationCounter = 0;
long lastModificationTime = 0;
+ String lastInsertedFingerprint = lastInsertFingerprint;
+ String lastFingerprint = "";
+ Sone sone;
while (!shouldStop()) {
- /* check every seconds. */
- sleep(1000);
-
- InsertInformation insertInformation = null;
- synchronized (sone) {
- if (sone.getModificationCounter() > modificationCounter) {
- modificationCounter = sone.getModificationCounter();
- lastModificationTime = System.currentTimeMillis();
- sone.setTime(lastModificationTime);
- logger.log(Level.FINE, "Sone %s has been modified, waiting %d seconds before inserting.", new Object[] { sone.getName(), insertionDelay });
- }
- if ((lastModificationTime > 0) && ((System.currentTimeMillis() - lastModificationTime) > (insertionDelay * 1000))) {
- insertInformation = new InsertInformation(sone);
- }
- }
+ try {
+ /* check every seconds. */
+ sleep(1000);
- if (insertInformation != null) {
- logger.log(Level.INFO, "Inserting Sone “%s”…", new Object[] { sone.getName() });
-
- boolean success = false;
- try {
- core.setSoneStatus(sone, SoneStatus.inserting);
- FreenetURI finalUri = freenetInterface.insertDirectory(insertInformation.getInsertUri().setKeyType("USK").setSuggestedEdition(0), insertInformation.generateManifestEntries(), "index.html");
- sone.updateUris(finalUri.getEdition());
- success = true;
- logger.log(Level.INFO, "Inserted Sone “%s” at %s.", new Object[] { sone.getName(), finalUri });
- } catch (SoneException se1) {
- logger.log(Level.WARNING, "Could not insert Sone “" + sone.getName() + "”!", se1);
- } finally {
- core.setSoneStatus(sone, SoneStatus.idle);
+ /* don’t insert locked Sones. */
+ sone = this.sone;
+ if (core.isLocked(sone)) {
+ /* trigger redetection when the Sone is unlocked. */
+ synchronized (sone) {
+ modified = !sone.getFingerprint().equals(lastInsertedFingerprint);
+ }
+ lastFingerprint = "";
+ lastModificationTime = 0;
+ continue;
}
- /*
- * reset modification counter if Sone has not been modified
- * while it was inserted.
- */
- if (success) {
- synchronized (sone) {
- if (sone.getModificationCounter() == modificationCounter) {
- logger.log(Level.FINE, "Sone “%s” was not modified further, resetting counter…", new Object[] { sone });
- sone.setModificationCounter(0);
- modificationCounter = 0;
+ InsertInformation insertInformation = null;
+ synchronized (sone) {
+ String fingerprint = sone.getFingerprint();
+ if (!fingerprint.equals(lastFingerprint)) {
+ if (fingerprint.equals(lastInsertedFingerprint)) {
+ modified = false;
lastModificationTime = 0;
+ logger.log(Level.FINE, String.format("Sone %s has been reverted to last insert state.", sone));
+ } else {
+ lastModificationTime = System.currentTimeMillis();
+ modified = true;
+ logger.log(Level.FINE, String.format("Sone %s has been modified, waiting %d seconds before inserting.", sone.getName(), insertionDelay));
+ }
+ lastFingerprint = fingerprint;
+ }
+ if (modified && (lastModificationTime > 0) && ((System.currentTimeMillis() - lastModificationTime) > (insertionDelay * 1000))) {
+ lastInsertedFingerprint = fingerprint;
+ insertInformation = new InsertInformation(sone);
+ }
+ }
+
+ if (insertInformation != null) {
+ logger.log(Level.INFO, String.format("Inserting Sone “%s”…", sone.getName()));
+
+ boolean success = false;
+ try {
+ sone.setStatus(SoneStatus.inserting);
+ long insertTime = System.currentTimeMillis();
+ insertInformation.setTime(insertTime);
+ eventBus.post(new SoneInsertingEvent(sone));
+ FreenetURI finalUri = freenetInterface.insertDirectory(insertInformation.getInsertUri(), insertInformation.generateManifestEntries(), "index.html");
+ eventBus.post(new SoneInsertedEvent(sone, System.currentTimeMillis() - insertTime));
+ /* at this point we might already be stopped. */
+ if (shouldStop()) {
+ /* if so, bail out, don’t change anything. */
+ break;
+ }
+ sone.setTime(insertTime);
+ sone.setLatestEdition(finalUri.getEdition());
+ core.touchConfiguration();
+ success = true;
+ logger.log(Level.INFO, String.format("Inserted Sone “%s” at %s.", sone.getName(), finalUri));
+ } catch (SoneException se1) {
+ eventBus.post(new SoneInsertAbortedEvent(sone, se1));
+ logger.log(Level.WARNING, String.format("Could not insert Sone “%s”!", sone.getName()), se1);
+ } finally {
+ sone.setStatus(SoneStatus.idle);
+ }
+
+ /*
+ * reset modification counter if Sone has not been modified
+ * while it was inserted.
+ */
+ if (success) {
+ synchronized (sone) {
+ if (lastInsertedFingerprint.equals(sone.getFingerprint())) {
+ logger.log(Level.FINE, String.format("Sone “%s” was not modified further, resetting counter…", sone));
+ lastModificationTime = 0;
+ lastInsertFingerprint = lastInsertedFingerprint;
+ core.touchConfiguration();
+ modified = false;
+ }
}
}
}
+ } catch (Throwable t1) {
+ logger.log(Level.SEVERE, "SoneInserter threw an Exception!", t1);
}
}
}
soneProperties.put("requestUri", sone.getRequestUri());
soneProperties.put("insertUri", sone.getInsertUri());
soneProperties.put("profile", sone.getProfile());
- soneProperties.put("posts", new ArrayList<Post>(sone.getPosts()));
- soneProperties.put("replies", new HashSet<Reply>(sone.getReplies()));
- soneProperties.put("blockedSoneIds", new HashSet<String>(sone.getBlockedSoneIds()));
+ soneProperties.put("posts", Ordering.from(Post.TIME_COMPARATOR).sortedCopy(sone.getPosts()));
+ soneProperties.put("replies", Ordering.from(Reply.TIME_COMPARATOR).reverse().sortedCopy(sone.getReplies()));
soneProperties.put("likedPostIds", new HashSet<String>(sone.getLikedPostIds()));
- soneProperties.put("likeReplyIds", new HashSet<String>(sone.getLikedReplyIds()));
+ soneProperties.put("likedReplyIds", new HashSet<String>(sone.getLikedReplyIds()));
+ soneProperties.put("albums", FluentIterable.from(sone.getRootAlbum().getAlbums()).transformAndConcat(Album.FLATTENER).filter(NOT_EMPTY).toList());
}
//
return (FreenetURI) soneProperties.get("insertUri");
}
+ /**
+ * Sets the time of the Sone at the time of the insert.
+ *
+ * @param time
+ * The time of the Sone
+ */
+ public void setTime(long time) {
+ soneProperties.put("time", time);
+ }
+
//
// ACTIONS
//
*/
@SuppressWarnings("synthetic-access")
private ManifestElement createManifestElement(String name, String contentType, String templateName) {
- InputStreamReader templateInputStreamReader;
- Template template = templateFactory.createTemplate(templateInputStreamReader = new InputStreamReader(getClass().getResourceAsStream(templateName), utf8Charset));
+ InputStreamReader templateInputStreamReader = null;
+ Template template;
try {
- template.parse();
+ templateInputStreamReader = new InputStreamReader(getClass().getResourceAsStream(templateName), utf8Charset);
+ template = TemplateParser.parse(templateInputStreamReader);
} catch (TemplateException te1) {
- logger.log(Level.SEVERE, "Could not parse template “" + templateName + "”!", te1);
+ logger.log(Level.SEVERE, String.format("Could not parse template “%s”!", templateName), te1);
return null;
} finally {
Closer.close(templateInputStreamReader);
}
- @SuppressWarnings("unchecked")
- final Set<String> blockedSoneIds = (Set<String>) soneProperties.get("blockedSoneIds");
- Collection<Sone> knownSones = Filters.filteredCollection(core.getKnownSones(), new Filter<Sone>() {
-
- /**
- * {@inheritDoc}
- */
- @Override
- public boolean filterObject(Sone object) {
- return !blockedSoneIds.contains(object.getId()) && !object.getId().equals(soneProperties.get("id"));
- }
- });
- template.set("currentSone", soneProperties);
- template.set("knownSones", knownSones);
+ TemplateContext templateContext = templateContextFactory.createTemplateContext();
+ templateContext.set("core", core);
+ templateContext.set("currentSone", soneProperties);
+ templateContext.set("currentEdition", core.getUpdateChecker().getLatestEdition());
+ templateContext.set("version", SonePlugin.VERSION);
StringWriter writer = new StringWriter();
StringBucket bucket = null;
try {
- template.render(writer);
+ template.render(templateContext, writer);
bucket = new StringBucket(writer.toString(), utf8Charset);
return new ManifestElement(name, bucket, contentType, bucket.size());
} catch (TemplateException te1) {
- logger.log(Level.SEVERE, "Could not render template “" + templateName + "”!", te1);
+ logger.log(Level.SEVERE, String.format("Could not render template “%s”!", templateName), te1);
return null;
} finally {
Closer.close(writer);
projects / Sone.git / blobdiff