+++ /dev/null
-package be.nikiroo.fanfix.library;
-
-import java.io.File;
-import java.io.IOException;
-import java.net.URL;
-import java.net.UnknownHostException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import java.util.TreeMap;
-
-import be.nikiroo.fanfix.Instance;
-import be.nikiroo.fanfix.data.MetaData;
-import be.nikiroo.fanfix.data.Story;
-import be.nikiroo.fanfix.output.BasicOutput;
-import be.nikiroo.fanfix.output.BasicOutput.OutputType;
-import be.nikiroo.fanfix.supported.BasicSupport;
-import be.nikiroo.fanfix.supported.SupportType;
-import be.nikiroo.utils.Image;
-import be.nikiroo.utils.Progress;
-import be.nikiroo.utils.StringUtils;
-
-/**
- * Manage a library of Stories: import, export, list, modify.
- * <p>
- * Each {@link Story} object will be associated with a (local to the library)
- * unique ID, the LUID, which will be used to identify the {@link Story}.
- * <p>
- * Most of the {@link BasicLibrary} functions work on a partial (cover
- * <b>MAY</b> not be included) {@link MetaData} object.
- *
- * @author niki
- */
-abstract public class BasicLibrary {
- /**
- * A {@link BasicLibrary} status.
- *
- * @author niki
- */
- public enum Status {
- /** The library is ready and r/w. */
- READ_WRITE,
- /** The library is ready, but read-only. */
- READ_ONLY,
- /** The library is invalid (not correctly set up). */
- INVALID,
- /** You are not allowed to access this library. */
- UNAUTHORIZED,
- /** The library is currently out of commission. */
- UNAVAILABLE;
-
- /**
- * The library is available (you can query it).
- * <p>
- * It does <b>not</b> specify if it is read-only or not.
- *
- * @return TRUE if it is
- */
- public boolean isReady() {
- return (this == READ_WRITE || this == READ_ONLY);
- }
-
- /**
- * This library can be modified (= you are allowed to modify it).
- *
- * @return TRUE if it is
- */
- public boolean isWritable() {
- return (this == READ_WRITE);
- }
- }
-
- /**
- * Return a name for this library (the UI may display this).
- * <p>
- * Must not be NULL.
- *
- * @return the name, or an empty {@link String} if none
- */
- public String getLibraryName() {
- return "";
- }
-
- /**
- * The library status.
- *
- * @return the current status
- */
- public Status getStatus() {
- return Status.READ_WRITE;
- }
-
- /**
- * Retrieve the main {@link File} corresponding to the given {@link Story},
- * which can be passed to an external reader or instance.
- * <p>
- * Do <b>NOT</b> alter this file.
- *
- * @param luid
- * the Library UID of the story
- * @param pg
- * the optional {@link Progress}
- *
- * @return the corresponding {@link Story}
- *
- * @throws IOException
- * in case of IOException
- */
- public abstract File getFile(String luid, Progress pg) throws IOException;
-
- /**
- * Return the cover image associated to this story.
- *
- * @param luid
- * the Library UID of the story
- *
- * @return the cover image
- *
- * @throws IOException
- * in case of IOException
- */
- public abstract Image getCover(String luid) throws IOException;
-
- /**
- * Return the cover image associated to this source.
- * <p>
- * By default, return the custom cover if any, and if not, return the cover
- * of the first story with this source.
- *
- * @param source
- * the source
- *
- * @return the cover image or NULL
- *
- * @throws IOException
- * in case of IOException
- */
- public Image getSourceCover(String source) throws IOException {
- Image custom = getCustomSourceCover(source);
- if (custom != null) {
- return custom;
- }
-
- List<MetaData> metas = getListBySource(source);
- if (metas.size() > 0) {
- return getCover(metas.get(0).getLuid());
- }
-
- return null;
- }
-
- /**
- * Return the cover image associated to this author.
- * <p>
- * By default, return the custom cover if any, and if not, return the cover
- * of the first story with this author.
- *
- * @param author
- * the author
- *
- * @return the cover image or NULL
- *
- * @throws IOException
- * in case of IOException
- */
- public Image getAuthorCover(String author) throws IOException {
- Image custom = getCustomAuthorCover(author);
- if (custom != null) {
- return custom;
- }
-
- List<MetaData> metas = getListByAuthor(author);
- if (metas.size() > 0) {
- return getCover(metas.get(0).getLuid());
- }
-
- return null;
- }
-
- /**
- * Return the custom cover image associated to this source.
- * <p>
- * By default, return NULL.
- *
- * @param source
- * the source to look for
- *
- * @return the custom cover or NULL if none
- *
- * @throws IOException
- * in case of IOException
- */
- @SuppressWarnings("unused")
- public Image getCustomSourceCover(String source) throws IOException {
- return null;
- }
-
- /**
- * Return the custom cover image associated to this author.
- * <p>
- * By default, return NULL.
- *
- * @param author
- * the author to look for
- *
- * @return the custom cover or NULL if none
- *
- * @throws IOException
- * in case of IOException
- */
- @SuppressWarnings("unused")
- public Image getCustomAuthorCover(String author) throws IOException {
- return null;
- }
-
- /**
- * Set the source cover to the given story cover.
- *
- * @param source
- * the source to change
- * @param luid
- * the story LUID
- *
- * @throws IOException
- * in case of IOException
- */
- public abstract void setSourceCover(String source, String luid)
- throws IOException;
-
- /**
- * Set the author cover to the given story cover.
- *
- * @param author
- * the author to change
- * @param luid
- * the story LUID
- *
- * @throws IOException
- * in case of IOException
- */
- public abstract void setAuthorCover(String author, String luid)
- throws IOException;
-
- /**
- * Return the list of stories (represented by their {@link MetaData}, which
- * <b>MAY</b> not have the cover included).
- *
- * @param pg
- * the optional {@link Progress}
- *
- * @return the list (can be empty but not NULL)
- *
- * @throws IOException
- * in case of IOException
- */
- protected abstract List<MetaData> getMetas(Progress pg) throws IOException;
-
- /**
- * Invalidate the {@link Story} cache (when the content should be re-read
- * because it was changed).
- */
- protected void invalidateInfo() {
- invalidateInfo(null);
- }
-
- /**
- * Invalidate the {@link Story} cache (when the content is removed).
- * <p>
- * All the cache can be deleted if NULL is passed as meta.
- *
- * @param luid
- * the LUID of the {@link Story} to clear from the cache, or NULL
- * for all stories
- */
- protected abstract void invalidateInfo(String luid);
-
- /**
- * Invalidate the {@link Story} cache (when the content has changed, but we
- * already have it) with the new given meta.
- *
- * @param meta
- * the {@link Story} to clear from the cache
- *
- * @throws IOException
- * in case of IOException
- */
- protected abstract void updateInfo(MetaData meta) throws IOException;
-
- /**
- * Return the next LUID that can be used.
- *
- * @return the next luid
- */
- protected abstract int getNextId();
-
- /**
- * Delete the target {@link Story}.
- *
- * @param luid
- * the LUID of the {@link Story}
- *
- * @throws IOException
- * in case of I/O error or if the {@link Story} wa not found
- */
- protected abstract void doDelete(String luid) throws IOException;
-
- /**
- * Actually save the story to the back-end.
- *
- * @param story
- * the {@link Story} to save
- * @param pg
- * the optional {@link Progress}
- *
- * @return the saved {@link Story} (which may have changed, especially
- * regarding the {@link MetaData})
- *
- * @throws IOException
- * in case of I/O error
- */
- protected abstract Story doSave(Story story, Progress pg)
- throws IOException;
-
- /**
- * Refresh the {@link BasicLibrary}, that is, make sure all metas are
- * loaded.
- *
- * @param pg
- * the optional progress reporter
- */
- public void refresh(Progress pg) {
- try {
- getMetas(pg);
- } catch (IOException e) {
- // We will let it fail later
- }
- }
-
- /**
- * List all the known types (sources) of stories.
- *
- * @return the sources
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized List<String> getSources() throws IOException {
- List<String> list = new ArrayList<String>();
- for (MetaData meta : getMetas(null)) {
- String storySource = meta.getSource();
- if (!list.contains(storySource)) {
- list.add(storySource);
- }
- }
-
- Collections.sort(list);
- return list;
- }
-
- /**
- * List all the known types (sources) of stories, grouped by directory
- * ("Source_1/a" and "Source_1/b" will be grouped into "Source_1").
- * <p>
- * Note that an empty item in the list means a non-grouped source (type) --
- * e.g., you could have for Source_1:
- * <ul>
- * <li><tt></tt>: empty, so source is "Source_1"</li>
- * <li><tt>a</tt>: empty, so source is "Source_1/a"</li>
- * <li><tt>b</tt>: empty, so source is "Source_1/b"</li>
- * </ul>
- *
- * @return the grouped list
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized Map<String, List<String>> getSourcesGrouped()
- throws IOException {
- Map<String, List<String>> map = new TreeMap<String, List<String>>();
- for (String source : getSources()) {
- String name;
- String subname;
-
- int pos = source.indexOf('/');
- if (pos > 0 && pos < source.length() - 1) {
- name = source.substring(0, pos);
- subname = source.substring(pos + 1);
-
- } else {
- name = source;
- subname = "";
- }
-
- List<String> list = map.get(name);
- if (list == null) {
- list = new ArrayList<String>();
- map.put(name, list);
- }
- list.add(subname);
- }
-
- return map;
- }
-
- /**
- * List all the known authors of stories.
- *
- * @return the authors
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized List<String> getAuthors() throws IOException {
- List<String> list = new ArrayList<String>();
- for (MetaData meta : getMetas(null)) {
- String storyAuthor = meta.getAuthor();
- if (!list.contains(storyAuthor)) {
- list.add(storyAuthor);
- }
- }
-
- Collections.sort(list);
- return list;
- }
-
- /**
- * Return the list of authors, grouped by starting letter(s) if needed.
- * <p>
- * If the number of author is not too high, only one group with an empty
- * name and all the authors will be returned.
- * <p>
- * If not, the authors will be separated into groups:
- * <ul>
- * <li><tt>*</tt>: any author whose name doesn't contain letters nor numbers
- * </li>
- * <li><tt>0-9</tt>: any authors whose name starts with a number</li>
- * <li><tt>A-C</tt> (for instance): any author whose name starts with
- * <tt>A</tt>, <tt>B</tt> or <tt>C</tt></li>
- * </ul>
- * Note that the letters used in the groups can vary (except <tt>*</tt> and
- * <tt>0-9</tt>, which may only be present or not).
- *
- * @return the authors' names, grouped by letter(s)
- *
- * @throws IOException
- * in case of IOException
- */
- public Map<String, List<String>> getAuthorsGrouped() throws IOException {
- int MAX = 20;
-
- Map<String, List<String>> groups = new TreeMap<String, List<String>>();
- List<String> authors = getAuthors();
-
- // If all authors fit the max, just report them as is
- if (authors.size() <= MAX) {
- groups.put("", authors);
- return groups;
- }
-
- // Create groups A to Z, which can be empty here
- for (char car = 'A'; car <= 'Z'; car++) {
- groups.put(Character.toString(car), getAuthorsGroup(authors, car));
- }
-
- // Collapse them
- List<String> keys = new ArrayList<String>(groups.keySet());
- for (int i = 0; i + 1 < keys.size(); i++) {
- String keyNow = keys.get(i);
- String keyNext = keys.get(i + 1);
-
- List<String> now = groups.get(keyNow);
- List<String> next = groups.get(keyNext);
-
- int currentTotal = now.size() + next.size();
- if (currentTotal <= MAX) {
- String key = keyNow.charAt(0) + "-"
- + keyNext.charAt(keyNext.length() - 1);
-
- List<String> all = new ArrayList<String>();
- all.addAll(now);
- all.addAll(next);
-
- groups.remove(keyNow);
- groups.remove(keyNext);
- groups.put(key, all);
-
- keys.set(i, key); // set the new key instead of key(i)
- keys.remove(i + 1); // remove the next, consumed key
- i--; // restart at key(i)
- }
- }
-
- // Add "special" groups
- groups.put("*", getAuthorsGroup(authors, '*'));
- groups.put("0-9", getAuthorsGroup(authors, '0'));
-
- // Prune empty groups
- keys = new ArrayList<String>(groups.keySet());
- for (String key : keys) {
- if (groups.get(key).isEmpty()) {
- groups.remove(key);
- }
- }
-
- return groups;
- }
-
- /**
- * Get all the authors that start with the given character:
- * <ul>
- * <li><tt>*</tt>: any author whose name doesn't contain letters nor numbers
- * </li>
- * <li><tt>0</tt>: any authors whose name starts with a number</li>
- * <li><tt>A</tt> (any capital latin letter): any author whose name starts
- * with <tt>A</tt></li>
- * </ul>
- *
- * @param authors
- * the full list of authors
- * @param car
- * the starting character, <tt>*</tt>, <tt>0</tt> or a capital
- * letter
- *
- * @return the authors that fulfil the starting letter
- */
- private List<String> getAuthorsGroup(List<String> authors, char car) {
- List<String> accepted = new ArrayList<String>();
- for (String author : authors) {
- char first = '*';
- for (int i = 0; first == '*' && i < author.length(); i++) {
- String san = StringUtils.sanitize(author, true, true);
- char c = san.charAt(i);
- if (c >= '0' && c <= '9') {
- first = '0';
- } else if (c >= 'a' && c <= 'z') {
- first = (char) (c - 'a' + 'A');
- } else if (c >= 'A' && c <= 'Z') {
- first = c;
- }
- }
-
- if (first == car) {
- accepted.add(author);
- }
- }
-
- return accepted;
- }
-
- /**
- * List all the stories in the {@link BasicLibrary}.
- * <p>
- * Cover images <b>MAYBE</b> not included.
- *
- * @return the stories
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized List<MetaData> getList() throws IOException {
- return getMetas(null);
- }
-
- /**
- * List all the stories of the given source type in the {@link BasicLibrary}
- * , or all the stories if NULL is passed as a type.
- * <p>
- * Cover images not included.
- *
- * @param type
- * the type of story to retrieve, or NULL for all
- *
- * @return the stories
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized List<MetaData> getListBySource(String type)
- throws IOException {
- List<MetaData> list = new ArrayList<MetaData>();
- for (MetaData meta : getMetas(null)) {
- String storyType = meta.getSource();
- if (type == null || type.equalsIgnoreCase(storyType)) {
- list.add(meta);
- }
- }
-
- Collections.sort(list);
- return list;
- }
-
- /**
- * List all the stories of the given author in the {@link BasicLibrary}, or
- * all the stories if NULL is passed as an author.
- * <p>
- * Cover images not included.
- *
- * @param author
- * the author of the stories to retrieve, or NULL for all
- *
- * @return the stories
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized List<MetaData> getListByAuthor(String author)
- throws IOException {
- List<MetaData> list = new ArrayList<MetaData>();
- for (MetaData meta : getMetas(null)) {
- String storyAuthor = meta.getAuthor();
- if (author == null || author.equalsIgnoreCase(storyAuthor)) {
- list.add(meta);
- }
- }
-
- Collections.sort(list);
- return list;
- }
-
- /**
- * Retrieve a {@link MetaData} corresponding to the given {@link Story},
- * cover image <b>MAY</b> not be included.
- *
- * @param luid
- * the Library UID of the story
- *
- * @return the corresponding {@link Story}
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized MetaData getInfo(String luid) throws IOException {
- if (luid != null) {
- for (MetaData meta : getMetas(null)) {
- if (luid.equals(meta.getLuid())) {
- return meta;
- }
- }
- }
-
- return null;
- }
-
- /**
- * Retrieve a specific {@link Story}.
- *
- * @param luid
- * the Library UID of the story
- * @param pg
- * the optional progress reporter
- *
- * @return the corresponding {@link Story} or NULL if not found
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized Story getStory(String luid, Progress pg)
- throws IOException {
- Progress pgMetas = new Progress();
- Progress pgStory = new Progress();
- if (pg != null) {
- pg.setMinMax(0, 100);
- pg.addProgress(pgMetas, 10);
- pg.addProgress(pgStory, 90);
- }
-
- MetaData meta = null;
- for (MetaData oneMeta : getMetas(pgMetas)) {
- if (oneMeta.getLuid().equals(luid)) {
- meta = oneMeta;
- break;
- }
- }
-
- pgMetas.done();
-
- Story story = getStory(luid, meta, pgStory);
- pgStory.done();
-
- return story;
- }
-
- /**
- * Retrieve a specific {@link Story}.
- *
- * @param luid
- * the meta of the story
- * @param pg
- * the optional progress reporter
- *
- * @return the corresponding {@link Story} or NULL if not found
- *
- * @throws IOException
- * in case of IOException
- */
- public synchronized Story getStory(String luid,
- @SuppressWarnings("javadoc") MetaData meta, Progress pg)
- throws IOException {
-
- if (pg == null) {
- pg = new Progress();
- }
-
- Progress pgGet = new Progress();
- Progress pgProcess = new Progress();
-
- pg.setMinMax(0, 2);
- pg.addProgress(pgGet, 1);
- pg.addProgress(pgProcess, 1);
-
- Story story = null;
- File file = getFile(luid, pgGet);
- pgGet.done();
- try {
- SupportType type = SupportType.valueOfAllOkUC(meta.getType());
- URL url = file.toURI().toURL();
- if (type != null) {
- story = BasicSupport.getSupport(type, url) //
- .process(pgProcess);
-
- // Because we do not want to clear the meta cache:
- meta.setCover(story.getMeta().getCover());
- meta.setResume(story.getMeta().getResume());
- story.setMeta(meta);
- //
- } else {
- throw new IOException("Unknown type: " + meta.getType());
- }
- } catch (IOException e) {
- // We should not have not-supported files in the
- // library
- Instance.getTraceHandler().error(
- new IOException(String.format(
- "Cannot load file of type '%s' from library: %s",
- meta.getType(), file), e));
- } finally {
- pgProcess.done();
- pg.done();
- }
-
- return story;
- }
-
- /**
- * Import the {@link Story} at the given {@link URL} into the
- * {@link BasicLibrary}.
- *
- * @param url
- * the {@link URL} to import
- * @param pg
- * the optional progress reporter
- *
- * @return the imported Story {@link MetaData}
- *
- * @throws UnknownHostException
- * if the host is not supported
- * @throws IOException
- * in case of I/O error
- */
- public MetaData imprt(URL url, Progress pg) throws IOException {
- if (pg == null)
- pg = new Progress();
-
- pg.setMinMax(0, 1000);
- Progress pgProcess = new Progress();
- Progress pgSave = new Progress();
- pg.addProgress(pgProcess, 800);
- pg.addProgress(pgSave, 200);
-
- BasicSupport support = BasicSupport.getSupport(url);
- if (support == null) {
- throw new UnknownHostException("" + url);
- }
-
- Story story = save(support.process(pgProcess), pgSave);
- pg.done();
-
- return story.getMeta();
- }
-
- /**
- * Import the story from one library to another, and keep the same LUID.
- *
- * @param other
- * the other library to import from
- * @param luid
- * the Library UID
- * @param pg
- * the optional progress reporter
- *
- * @throws IOException
- * in case of I/O error
- */
- public void imprt(BasicLibrary other, String luid, Progress pg)
- throws IOException {
- Progress pgGetStory = new Progress();
- Progress pgSave = new Progress();
- if (pg == null) {
- pg = new Progress();
- }
-
- pg.setMinMax(0, 2);
- pg.addProgress(pgGetStory, 1);
- pg.addProgress(pgSave, 1);
-
- Story story = other.getStory(luid, pgGetStory);
- if (story != null) {
- story = this.save(story, luid, pgSave);
- pg.done();
- } else {
- pg.done();
- throw new IOException("Cannot find story in Library: " + luid);
- }
- }
-
- /**
- * Export the {@link Story} to the given target in the given format.
- *
- * @param luid
- * the {@link Story} ID
- * @param type
- * the {@link OutputType} to transform it to
- * @param target
- * the target to save to
- * @param pg
- * the optional progress reporter
- *
- * @return the saved resource (the main saved {@link File})
- *
- * @throws IOException
- * in case of I/O error
- */
- public File export(String luid, OutputType type, String target, Progress pg)
- throws IOException {
- Progress pgGetStory = new Progress();
- Progress pgOut = new Progress();
- if (pg != null) {
- pg.setMax(2);
- pg.addProgress(pgGetStory, 1);
- pg.addProgress(pgOut, 1);
- }
-
- BasicOutput out = BasicOutput.getOutput(type, false, false);
- if (out == null) {
- throw new IOException("Output type not supported: " + type);
- }
-
- Story story = getStory(luid, pgGetStory);
- if (story == null) {
- throw new IOException("Cannot find story to export: " + luid);
- }
-
- return out.process(story, target, pgOut);
- }
-
- /**
- * Save a {@link Story} to the {@link BasicLibrary}.
- *
- * @param story
- * the {@link Story} to save
- * @param pg
- * the optional progress reporter
- *
- * @return the same {@link Story}, whose LUID may have changed
- *
- * @throws IOException
- * in case of I/O error
- */
- public Story save(Story story, Progress pg) throws IOException {
- return save(story, null, pg);
- }
-
- /**
- * Save a {@link Story} to the {@link BasicLibrary} -- the LUID <b>must</b>
- * be correct, or NULL to get the next free one.
- * <p>
- * Will override any previous {@link Story} with the same LUID.
- *
- * @param story
- * the {@link Story} to save
- * @param luid
- * the <b>correct</b> LUID or NULL to get the next free one
- * @param pg
- * the optional progress reporter
- *
- * @return the same {@link Story}, whose LUID may have changed
- *
- * @throws IOException
- * in case of I/O error
- */
- public synchronized Story save(Story story, String luid, Progress pg)
- throws IOException {
-
- Instance.getTraceHandler().trace(
- this.getClass().getSimpleName() + ": saving story " + luid);
-
- // Do not change the original metadata, but change the original story
- MetaData meta = story.getMeta().clone();
- story.setMeta(meta);
-
- if (luid == null || luid.isEmpty()) {
- meta.setLuid(String.format("%03d", getNextId()));
- } else {
- meta.setLuid(luid);
- }
-
- if (luid != null && getInfo(luid) != null) {
- delete(luid);
- }
-
- story = doSave(story, pg);
-
- updateInfo(story.getMeta());
-
- Instance.getTraceHandler().trace(
- this.getClass().getSimpleName() + ": story saved (" + luid
- + ")");
-
- return story;
- }
-
- /**
- * Delete the given {@link Story} from this {@link BasicLibrary}.
- *
- * @param luid
- * the LUID of the target {@link Story}
- *
- * @throws IOException
- * in case of I/O error
- */
- public synchronized void delete(String luid) throws IOException {
- Instance.getTraceHandler().trace(
- this.getClass().getSimpleName() + ": deleting story " + luid);
-
- doDelete(luid);
- invalidateInfo(luid);
-
- Instance.getTraceHandler().trace(
- this.getClass().getSimpleName() + ": story deleted (" + luid
- + ")");
- }
-
- /**
- * Change the type (source) of the given {@link Story}.
- *
- * @param luid
- * the {@link Story} LUID
- * @param newSource
- * the new source
- * @param pg
- * the optional progress reporter
- *
- * @throws IOException
- * in case of I/O error or if the {@link Story} was not found
- */
- public synchronized void changeSource(String luid, String newSource,
- Progress pg) throws IOException {
- MetaData meta = getInfo(luid);
- if (meta == null) {
- throw new IOException("Story not found: " + luid);
- }
-
- changeSTA(luid, newSource, meta.getTitle(), meta.getAuthor(), pg);
- }
-
- /**
- * Change the title (name) of the given {@link Story}.
- *
- * @param luid
- * the {@link Story} LUID
- * @param newTitle
- * the new title
- * @param pg
- * the optional progress reporter
- *
- * @throws IOException
- * in case of I/O error or if the {@link Story} was not found
- */
- public synchronized void changeTitle(String luid, String newTitle,
- Progress pg) throws IOException {
- MetaData meta = getInfo(luid);
- if (meta == null) {
- throw new IOException("Story not found: " + luid);
- }
-
- changeSTA(luid, meta.getSource(), newTitle, meta.getAuthor(), pg);
- }
-
- /**
- * Change the author of the given {@link Story}.
- *
- * @param luid
- * the {@link Story} LUID
- * @param newAuthor
- * the new author
- * @param pg
- * the optional progress reporter
- *
- * @throws IOException
- * in case of I/O error or if the {@link Story} was not found
- */
- public synchronized void changeAuthor(String luid, String newAuthor,
- Progress pg) throws IOException {
- MetaData meta = getInfo(luid);
- if (meta == null) {
- throw new IOException("Story not found: " + luid);
- }
-
- changeSTA(luid, meta.getSource(), meta.getTitle(), newAuthor, pg);
- }
-
- /**
- * Change the Source, Title and Author of the {@link Story} in one single
- * go.
- *
- * @param luid
- * the {@link Story} LUID
- * @param newSource
- * the new source
- * @param newTitle
- * the new title
- * @param newAuthor
- * the new author
- * @param pg
- * the optional progress reporter
- *
- * @throws IOException
- * in case of I/O error or if the {@link Story} was not found
- */
- protected synchronized void changeSTA(String luid, String newSource,
- String newTitle, String newAuthor, Progress pg) throws IOException {
- MetaData meta = getInfo(luid);
- if (meta == null) {
- throw new IOException("Story not found: " + luid);
- }
-
- meta.setSource(newSource);
- meta.setTitle(newTitle);
- meta.setAuthor(newAuthor);
- saveMeta(meta, pg);
-
- invalidateInfo(luid);
- }
-
- /**
- * Save back the current state of the {@link MetaData} (LUID <b>MUST NOT</b>
- * change) for this {@link Story}.
- * <p>
- * By default, delete the old {@link Story} then recreate a new
- * {@link Story}.
- * <p>
- * Note that this behaviour can lead to data loss in case of problems!
- *
- * @param meta
- * the new {@link MetaData} (LUID <b>MUST NOT</b> change)
- * @param pg
- * the optional {@link Progress}
- *
- * @throws IOException
- * in case of I/O error or if the {@link Story} was not found
- */
- protected synchronized void saveMeta(MetaData meta, Progress pg)
- throws IOException {
- if (pg == null) {
- pg = new Progress();
- }
-
- Progress pgGet = new Progress();
- Progress pgSet = new Progress();
- pg.addProgress(pgGet, 50);
- pg.addProgress(pgSet, 50);
-
- Story story = getStory(meta.getLuid(), pgGet);
- if (story == null) {
- throw new IOException("Story not found: " + meta.getLuid());
- }
-
- // TODO: this is not safe!
- delete(meta.getLuid());
- story.setMeta(meta);
- save(story, meta.getLuid(), pgSet);
-
- pg.done();
- }
-}
git://git.nikiroo.be / fanfix.git / blobdiff