// Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
-package org.ibex;
+package org.ibex.js;
import java.io.*;
import java.util.zip.*;
-import org.ibex.js.*;
import org.ibex.util.*;
-import org.ibex.translators.MSPack;
+import org.ibex.plat.*;
+import org.ibex.net.*;
/**
* Essentiall an InputStream "factory". You can repeatedly ask a
* be totally independent of the others (ie separate stream position
* and state) although they draw from the same data source.
*/
-public abstract class Stream extends JS.Cloneable {
+public abstract class Stream extends JS implements JS.Cloneable {
// Public Interface //////////////////////////////////////////////////////////////////////////////
- public static InputStream getInputStream(Object js) throws IOException { return ((Stream)((JS)js).unclone()).getInputStream();}
+ /*public static InputStream getInputStream(JS js) throws IOException { return ((Stream)js.unclone()).getInputStream();}*/
public static class NotCacheableException extends Exception { }
- // streams are "sealed" by default to prevent accidental object leakage
- public void put(Object key, Object val) { }
private Cache getCache = new Cache(100);
- protected Object _get(Object key) { return null; }
- public final Object get(Object key) {
- Object ret = getCache.get(key);
- if (ret == null) getCache.put(key, ret = _get(key));
+ public abstract JS _get(String key);
+ public final JS get(JS key) throws JSExn {
+ JS ret = (JS) getCache.get(key);
+ if (ret == null) getCache.put(key, ret = _get(JS.toString(key)));
return ret;
}
// Private Interface //////////////////////////////////////////////////////////////////////////////
- protected abstract InputStream getInputStream() throws IOException;
+ static String getCacheKey(JS s) throws NotCacheableException {
+ if(s instanceof Stream) return ((Stream)s).getCacheKey();
+ throw new NotCacheableException();
+ }
+
+ public abstract InputStream getInputStream() throws IOException;
protected String getCacheKey() throws NotCacheableException { throw new NotCacheableException(); }
/** HTTP or HTTPS resource */
+ // FEATURE: Only instansiate only ibex.net.HTTP, share with all substreams
public static class HTTP extends Stream {
private String url;
- public String toString() { return "Stream.HTTP:" + url; }
- HTTP(String url) { while (url.endsWith("/")) url = url.substring(0, url.length() - 1); this.url = url; }
- public Object _get(Object key) { return new HTTP(url + "/" + (String)key); }
+ public HTTP(String url) { while (url.endsWith("/")) url = url.substring(0, url.length() - 1); this.url = url; }
+ public JS _get(String key) { return new HTTP(url + "/" + key); }
public String getCacheKey(Vec path) throws NotCacheableException { return url; }
- public InputStream getInputStream() throws IOException { return new org.ibex.HTTP(url).GET(); }
+ public InputStream getInputStream() throws IOException { return new org.ibex.net.HTTP(url).GET(); }
}
/** byte arrays */
public static class ByteArray extends Stream {
private byte[] bytes;
private String cacheKey;
- ByteArray(byte[] bytes, String cacheKey) { this.bytes = bytes; this.cacheKey = cacheKey; }
+ public ByteArray(byte[] bytes, String cacheKey) { this.bytes = bytes; this.cacheKey = cacheKey; }
public String getCacheKey() throws NotCacheableException {
if (cacheKey == null) throw new NotCacheableException(); return cacheKey; }
public InputStream getInputStream() throws IOException { return new ByteArrayInputStream(bytes); }
+ public JS _get(String key) { return null; }
}
/** a file */
public static class File extends Stream {
private String path;
- File(String path) { this.path = path; }
- public String toString() { return "file:" + path; }
+ public File(String path) { this.path = path; }
public String getCacheKey() throws NotCacheableException { throw new NotCacheableException(); /* already on disk */ }
public InputStream getInputStream() throws IOException { return new FileInputStream(path); }
- public Object _get(Object key) { return new File(path + java.io.File.separatorChar + (String)key); }
+ public JS _get(String key) { return new File(path + java.io.File.separatorChar + key); }
}
/** "unwrap" a Zip archive */
public static class Zip extends Stream {
- private Stream parent;
+ private JS parent;
private String path;
- Zip(Stream parent) { this(parent, null); }
- Zip(Stream parent, String path) {
+ public Zip(JS parent) { this(parent, null); }
+ public Zip(JS parent, String path) {
while(path != null && path.startsWith("/")) path = path.substring(1);
this.parent = parent;
this.path = path;
}
- public String getCacheKey() throws NotCacheableException { return parent.getCacheKey() + "!zip:"; }
- public Object _get(Object key) { return new Zip(parent, path==null?(String)key:path+'/'+(String)key); }
+ public String getCacheKey() throws NotCacheableException { return getCacheKey(parent) + "!zip:"; }
+ public JS _get(String key) { return new Zip(parent, path==null?key:path+'/'+key); }
public InputStream getInputStream() throws IOException {
InputStream pis = parent.getInputStream();
ZipInputStream zis = new ZipInputStream(pis);
/** "unwrap" a Cab archive */
public static class Cab extends Stream {
- private Stream parent;
+ private JS parent;
private String path;
- Cab(Stream parent) { this(parent, null); }
- Cab(Stream parent, String path) { this.parent = parent; this.path = path; }
- public String getCacheKey() throws NotCacheableException { return parent.getCacheKey() + "!cab:"; }
- public Object _get(Object key) { return new Cab(parent, path==null?(String)key:path+'/'+(String)key); }
+ public Cab(JS parent) { this(parent, null); }
+ public Cab(JS parent, String path) { this.parent = parent; this.path = path; }
+ public String getCacheKey() throws NotCacheableException { return getCacheKey(parent) + "!cab:"; }
+ public JS _get(String key) { return new Cab(parent, path==null?key:path+'/'+key); }
public InputStream getInputStream() throws IOException { return new MSPack(parent.getInputStream()).getInputStream(path); }
}
public static class Builtin extends Stream {
public String getCacheKey() throws NotCacheableException { throw new NotCacheableException(); }
public InputStream getInputStream() throws IOException { return Platform.getBuiltinInputStream(); }
+ public JS _get(String key) { return null; }
}
/** shadow resource which replaces the graft */
public static class ProgressWatcher extends Stream {
- final Stream watchee;
+ final JS watchee;
JS callback;
- ProgressWatcher(Stream watchee, JS callback) { this.watchee = watchee; this.callback = callback; }
- public String getCacheKey() throws NotCacheableException { return watchee.getCacheKey(); }
+ public ProgressWatcher(JS watchee, JS callback) { this.watchee = watchee; this.callback = callback; }
+ public String getCacheKey() throws NotCacheableException { return getCacheKey(watchee); }
public InputStream getInputStream() throws IOException {
final InputStream is = watchee.getInputStream();
return new FilterInputStream(is) {
public int read(byte[] b, int off, int len) throws IOException {
int ret = super.read(b, off, len);
if (ret != 1) bytesDownloaded += ret;
- Scheduler.add(new Scheduler.Task() { public void perform() throws IOException, JSExn {
+ Scheduler.add(new Task() { public void perform() throws IOException, JSExn {
callback.call(N(bytesDownloaded),
N(is instanceof KnownLength ? ((KnownLength)is).getLength() : 0), null, null, 2);
} });
}
};
}
+ public JS _get(String s) { return null; }
}
/** subclass from this if you want a CachedInputStream for each path */
public static class CachedStream extends Stream {
- private Stream parent;
+ private JS parent;
private boolean disk = false;
private String key;
+ private String s;
public String getCacheKey() throws NotCacheableException { return key; }
CachedInputStream cis = null;
- public CachedStream(Stream p, String s, boolean d) throws NotCacheableException {
- this.parent = p; this.disk = d; this.key = p.getCacheKey();
+ public CachedStream(JS p, String s, boolean d) throws NotCacheableException {
+ this.parent = p; this.s = s; this.disk = d; this.key = getCacheKey(p);
}
public InputStream getInputStream() throws IOException {
if (cis != null) return cis.getInputStream();
if (!disk) {
cis = new CachedInputStream(parent.getInputStream());
} else {
- java.io.File f = LocalStorage.Cache.getCacheFileForKey(key);
+ // FEATURE: Move LocalStorage into org.ibex.js or move this out
+ java.io.File f = org.ibex.core.LocalStorage.Cache.getCacheFileForKey(key);
if (f.exists()) return new FileInputStream(f);
cis = new CachedInputStream(parent.getInputStream(), f);
}
return cis.getInputStream();
}
+ public JS _get(String s) { return null; }
}
}
projects / org.ibex.core.git / blobdiff