1 package be
.nikiroo
.fanfix
.library
;
3 import java
.awt
.image
.BufferedImage
;
5 import java
.io
.IOException
;
9 import be
.nikiroo
.fanfix
.Instance
;
10 import be
.nikiroo
.fanfix
.bundles
.UiConfig
;
11 import be
.nikiroo
.fanfix
.data
.MetaData
;
12 import be
.nikiroo
.fanfix
.data
.Story
;
13 import be
.nikiroo
.utils
.Progress
;
16 * This library will cache another pre-existing {@link BasicLibrary}.
20 public class CacheLibrary
extends BasicLibrary
{
21 private List
<MetaData
> metas
;
22 private BasicLibrary lib
;
23 private LocalLibrary cacheLib
;
26 * Create a cache library around the given one.
28 * It will return the same result, but those will be saved to disk at the
29 * same time to be fetched quicker the next time.
32 * the cache directory where to save the files to disk
34 * the original library to wrap
36 public CacheLibrary(File cacheDir
, BasicLibrary lib
) {
37 this.cacheLib
= new LocalLibrary(cacheDir
, Instance
.getUiConfig()
38 .getString(UiConfig
.GUI_NON_IMAGES_DOCUMENT_TYPE
), Instance
39 .getUiConfig().getString(UiConfig
.GUI_IMAGES_DOCUMENT_TYPE
),
45 public String
getLibraryName() {
46 return lib
.getLibraryName();
50 public Status
getStatus() {
51 return lib
.getStatus();
55 protected List
<MetaData
> getMetas(Progress pg
) {
61 metas
= lib
.getMetas(pg
);
69 public synchronized File
getFile(final String luid
, Progress pg
) {
74 Progress pgImport
= new Progress();
75 Progress pgGet
= new Progress();
76 Progress pgRecall
= new Progress();
79 pg
.addProgress(pgImport
, 3);
80 pg
.addProgress(pgGet
, 1);
81 pg
.addProgress(pgRecall
, 1);
83 if (!isCached(luid
)) {
85 cacheLib
.imprt(lib
, luid
, pgImport
);
88 } catch (IOException e
) {
89 Instance
.getTraceHandler().error(e
);
96 File file
= cacheLib
.getFile(luid
, pgRecall
);
104 public BufferedImage
getCover(final String luid
) {
105 if (isCached(luid
)) {
106 return cacheLib
.getCover(luid
);
109 // We could update the cache here, but it's not easy
110 return lib
.getCover(luid
);
114 public BufferedImage
getSourceCover(String source
) {
115 // no cache for the source cover
116 return lib
.getSourceCover(source
);
120 public void setSourceCover(String source
, String luid
) {
121 lib
.setSourceCover(source
, luid
);
122 cacheLib
.setSourceCover(source
, getSourceCover(source
));
126 protected void clearCache() {
128 cacheLib
.clearCache();
133 public synchronized Story
save(Story story
, String luid
, Progress pg
)
135 Progress pgLib
= new Progress();
136 Progress pgCacheLib
= new Progress();
143 pg
.addProgress(pgLib
, 1);
144 pg
.addProgress(pgCacheLib
, 1);
146 story
= lib
.save(story
, luid
, pgLib
);
147 story
= cacheLib
.save(story
, story
.getMeta().getLuid(), pgCacheLib
);
155 public synchronized void delete(String luid
) throws IOException
{
156 if (isCached(luid
)) {
157 cacheLib
.delete(luid
);
164 public synchronized void changeSource(String luid
, String newSource
,
165 Progress pg
) throws IOException
{
170 Progress pgCache
= new Progress();
171 Progress pgOrig
= new Progress();
173 pg
.addProgress(pgCache
, 1);
174 pg
.addProgress(pgOrig
, 1);
176 if (isCached(luid
)) {
177 cacheLib
.changeSource(luid
, newSource
, pgCache
);
180 lib
.changeSource(luid
, newSource
, pgOrig
);
187 * Check if the {@link Story} denoted by this Library UID is present in the
193 * @return TRUE if it is
195 public boolean isCached(String luid
) {
196 return cacheLib
.getInfo(luid
) != null;
200 * Clear the {@link Story} from the cache.
205 * @throws IOException
206 * in case of I/O error
208 public void clearFromCache(String luid
) throws IOException
{
209 if (isCached(luid
)) {
210 cacheLib
.delete(luid
);
216 public Story
imprt(URL url
, Progress pg
) throws IOException
{
221 Progress pgImprt
= new Progress();
222 Progress pgCache
= new Progress();
224 pg
.addProgress(pgImprt
, 7);
225 pg
.addProgress(pgCache
, 3);
227 Story story
= lib
.imprt(url
, pgImprt
);
228 cacheLib
.save(story
, story
.getMeta().getLuid(), pgCache
);
234 // All the following methods are only used by Save and Delete in
238 protected int getNextId() {
239 throw new java
.lang
.InternalError("Should not have been called");
243 protected void doDelete(String luid
) throws IOException
{
244 throw new java
.lang
.InternalError("Should not have been called");
248 protected Story
doSave(Story story
, Progress pg
) throws IOException
{
249 throw new java
.lang
.InternalError("Should not have been called");