+++ /dev/null
-package be.nikiroo.fanfix.library;
-
-import java.io.IOException;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
-import be.nikiroo.fanfix.Instance;
-import be.nikiroo.fanfix.data.Chapter;
-import be.nikiroo.fanfix.data.MetaData;
-import be.nikiroo.fanfix.data.Paragraph;
-import be.nikiroo.fanfix.data.Story;
-import be.nikiroo.utils.Progress;
-import be.nikiroo.utils.Progress.ProgressListener;
-import be.nikiroo.utils.StringUtils;
-import be.nikiroo.utils.Version;
-import be.nikiroo.utils.serial.server.ConnectActionServerObject;
-import be.nikiroo.utils.serial.server.ServerObject;
-
-/**
- * Create a new remote server that will listen for order on the given port.
- * <p>
- * The available commands are given as arrays of objects (first item is the key,
- * second is the command, the rest are the arguments).
- * <p>
- * The md5 is always a String (the MD5 hash of the access key), the commands are
- * also Strings; the parameters vary depending upon the command.
- * <ul>
- * <li>[md5] PING: will return PONG if the key is accepted</li>
- * <li>[md5] GET_METADATA *: will return the metadata of all the stories in the
- * library (array)</li>
- * *
- * <li>[md5] GET_METADATA [luid]: will return the metadata of the story of LUID
- * luid</li>
- * <li>[md5] GET_STORY [luid]: will return the given story if it exists (or NULL
- * if not)</li>
- * <li>[md5] SAVE_STORY [luid]: save the story (that must be sent just after the
- * command) with the given LUID, then return the LUID</li>
- * <li>[md5] IMPORT [url]: save the story found at the given URL, then return
- * the LUID</li>
- * <li>[md5] DELETE_STORY [luid]: delete the story of LUID luid</li>
- * <li>[md5] GET_COVER [luid]: return the cover of the story</li>
- * <li>[md5] GET_CUSTOM_SOURCE_COVER [source]: return the cover for this source</li>
- * <li>[md5] SET_SOURCE_COVER [source], [luid]: set the default cover for the
- * given source to the cover of the story denoted by luid</li>
- * <li>[md5] CHANGE_SOURCE [luid] [new source]: change the source of the story
- * of LUID luid</li>
- * <li>[md5] EXIT: stop the server</li>
- * </ul>
- *
- * @author niki
- */
-public class RemoteLibraryServer extends ServerObject {
- private final String md5;
-
- /**
- * Create a new remote server (will not be active until
- * {@link RemoteLibraryServer#start()} is called).
- *
- * @param key
- * the key that will restrict access to this server
- * @param port
- * the port to listen on
- *
- * @throws IOException
- * in case of I/O error
- */
- public RemoteLibraryServer(String key, int port) throws IOException {
- super("Fanfix remote library", port, true);
- this.md5 = StringUtils.getMd5Hash(key);
-
- setTraceHandler(Instance.getTraceHandler());
- }
-
- @Override
- protected Object onRequest(ConnectActionServerObject action,
- Version clientVersion, Object data) throws Exception {
- String md5 = "";
- String command = "";
- Object[] args = new Object[0];
- if (data instanceof Object[]) {
- Object[] dataArray = (Object[]) data;
- if (dataArray.length >= 2) {
- md5 = "" + dataArray[0];
- command = "" + dataArray[1];
-
- args = new Object[dataArray.length - 2];
- for (int i = 2; i < dataArray.length; i++) {
- args[i - 2] = dataArray[i];
- }
- }
- }
-
- String trace = "[ " + command + "] ";
- for (Object arg : args) {
- trace += arg + " ";
- }
- getTraceHandler().trace(trace);
-
- if (!md5.equals(this.md5)) {
- getTraceHandler().trace("Key rejected.");
- return null;
- }
-
- long start = new Date().getTime();
- Object rep = doRequest(action, command, args);
-
- getTraceHandler().trace(
- String.format("[>%s]: %d ms", command,
- (new Date().getTime() - start)));
-
- return rep;
- }
-
- private Object doRequest(ConnectActionServerObject action, String command,
- Object[] args) throws NoSuchFieldException, NoSuchMethodException,
- ClassNotFoundException, IOException {
- if ("PING".equals(command)) {
- return "PONG";
- } else if ("GET_METADATA".equals(command)) {
- if ("*".equals(args[0])) {
- Progress pg = createPgForwarder(action);
-
- List<MetaData> metas = new ArrayList<MetaData>();
-
- for (MetaData meta : Instance.getLibrary().getMetas(pg)) {
- MetaData light;
- if (meta.getCover() == null) {
- light = meta;
- } else {
- light = meta.clone();
- light.setCover(null);
- }
-
- metas.add(light);
- }
-
- forcePgDoneSent(pg);
- return metas.toArray(new MetaData[] {});
- }
-
- return new MetaData[] { Instance.getLibrary().getInfo(
- (String) args[0]) };
- } else if ("GET_STORY".equals(command)) {
- MetaData meta = Instance.getLibrary().getInfo((String) args[0]);
- meta = meta.clone();
- meta.setCover(null);
-
- action.send(meta);
- action.rec();
-
- Story story = Instance.getLibrary()
- .getStory((String) args[0], null);
- for (Object obj : breakStory(story)) {
- action.send(obj);
- action.rec();
- }
- } else if ("SAVE_STORY".equals(command)) {
- List<Object> list = new ArrayList<Object>();
-
- action.send(null);
- Object obj = action.rec();
- while (obj != null) {
- list.add(obj);
- action.send(null);
- obj = action.rec();
- }
-
- Story story = rebuildStory(list);
- Instance.getLibrary().save(story, (String) args[0], null);
- return story.getMeta().getLuid();
- } else if ("IMPORT".equals(command)) {
- Progress pg = createPgForwarder(action);
- Story story = Instance.getLibrary().imprt(
- new URL((String) args[0]), pg);
- forcePgDoneSent(pg);
- return story.getMeta().getLuid();
- } else if ("DELETE_STORY".equals(command)) {
- Instance.getLibrary().delete((String) args[0]);
- } else if ("GET_COVER".equals(command)) {
- return Instance.getLibrary().getCover((String) args[0]);
- } else if ("GET_CUSTOM_SOURCE_COVER".equals(command)) {
- return Instance.getLibrary().getCustomSourceCover((String) args[0]);
- } else if ("SET_SOURCE_COVER".equals(command)) {
- Instance.getLibrary().setSourceCover((String) args[0],
- (String) args[1]);
- } else if ("CHANGE_STA".equals(command)) {
- Progress pg = createPgForwarder(action);
- Instance.getLibrary().changeSTA((String) args[0], (String) args[1],
- (String) args[2], (String) args[3], pg);
- forcePgDoneSent(pg);
- } else if ("EXIT".equals(command)) {
- stop(0, false);
- }
-
- return null;
- }
-
- @Override
- protected void onError(Exception e) {
- getTraceHandler().error(e);
- }
-
- /**
- * Break a story in multiple {@link Object}s for easier serialisation.
- *
- * @param story
- * the {@link Story} to break
- *
- * @return the list of {@link Object}s
- */
- static List<Object> breakStory(Story story) {
- List<Object> list = new ArrayList<Object>();
-
- story = story.clone();
- list.add(story);
-
- if (story.getMeta().isImageDocument()) {
- for (Chapter chap : story) {
- list.add(chap);
- list.addAll(chap.getParagraphs());
- chap.setParagraphs(new ArrayList<Paragraph>());
- }
- story.setChapters(new ArrayList<Chapter>());
- }
-
- return list;
- }
-
- /**
- * Rebuild a story from a list of broke up {@link Story} parts.
- *
- * @param list
- * the list of {@link Story} parts
- *
- * @return the reconstructed {@link Story}
- */
- static Story rebuildStory(List<Object> list) {
- Story story = null;
- Chapter chap = null;
-
- for (Object obj : list) {
- if (obj instanceof Story) {
- story = (Story) obj;
- } else if (obj instanceof Chapter) {
- chap = (Chapter) obj;
- story.getChapters().add(chap);
- } else if (obj instanceof Paragraph) {
- chap.getParagraphs().add((Paragraph) obj);
- }
- }
-
- return story;
- }
-
- /**
- * Update the {@link Progress} with the adequate {@link Object} received
- * from the network via {@link RemoteLibraryServer}.
- *
- * @param pg
- * the {@link Progress} to update
- * @param rep
- * the object received from the network
- *
- * @return TRUE if it was a progress event, FALSE if not
- */
- static boolean updateProgress(Progress pg, Object rep) {
- if (rep instanceof Integer[]) {
- Integer[] a = (Integer[]) rep;
- if (a.length == 3) {
- int min = a[0];
- int max = a[1];
- int progress = a[2];
-
- if (min >= 0 && min <= max) {
- pg.setMinMax(min, max);
- pg.setProgress(progress);
-
- return true;
- }
- }
- }
-
- return false;
- }
-
- /**
- * Create a {@link Progress} that will forward its progress over the
- * network.
- *
- * @param action
- * the {@link ConnectActionServerObject} to use to forward it
- *
- * @return the {@link Progress}
- */
- private static Progress createPgForwarder(
- final ConnectActionServerObject action) {
- final Boolean[] isDoneForwarded = new Boolean[] { false };
- final Progress pg = new Progress() {
- @Override
- public boolean isDone() {
- return isDoneForwarded[0];
- }
- };
-
- final Integer[] p = new Integer[] { -1, -1, -1 };
- final Long[] lastTime = new Long[] { new Date().getTime() };
- pg.addProgressListener(new ProgressListener() {
- @Override
- public void progress(Progress progress, String name) {
- int min = pg.getMin();
- int max = pg.getMax();
- int relativeProgress = min
- + (int) Math.round(pg.getRelativeProgress()
- * (max - min));
-
- // Do not re-send the same value twice over the wire,
- // unless more than 2 seconds have elapsed (to maintain the
- // connection)
- if ((p[0] != min || p[1] != max || p[2] != relativeProgress)
- || (new Date().getTime() - lastTime[0] > 2000)) {
- p[0] = min;
- p[1] = max;
- p[2] = relativeProgress;
-
- try {
- action.send(new Integer[] { min, max, relativeProgress });
- action.rec();
- } catch (Exception e) {
- Instance.getTraceHandler().error(e);
- }
-
- lastTime[0] = new Date().getTime();
- }
-
- isDoneForwarded[0] = (pg.getProgress() >= pg.getMax());
- }
- });
-
- return pg;
- }
-
- // with 30 seconds timeout
- private static void forcePgDoneSent(Progress pg) {
- long start = new Date().getTime();
- pg.done();
- while (!pg.isDone() && new Date().getTime() - start < 30000) {
- try {
- Thread.sleep(100);
- } catch (InterruptedException e) {
- Instance.getTraceHandler().error(e);
- }
- }
- }
-}
git://git.nikiroo.be / fanfix.git / blobdiff