-// Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
+// Copyright 2000-2005 the Contributors, as shown in the revision logs.
+// Licensed under the Apache Public Source License 2.0 ("the License").
+// You may not use this file except in compliance with the License.
+
package org.ibex.js;
import java.io.*;
import java.util.zip.*;
+import org.ibex.js.*;
import org.ibex.util.*;
import org.ibex.net.*;
* be totally independent of the others (ie separate stream position
* and state) although they draw from the same data source.
*/
-public abstract class Fountain extends JS.Cloneable {
+public abstract class Fountain extends JS.Obj implements JS.Cloneable {
// Public Interface //////////////////////////////////////////////////////////////////////////////
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);
+ private Cache getCache = new Cache(100, true);
+ protected JS _get(JS key) throws JSExn { return null; }
+ public final JS get(JS key) throws JSExn {
+ JS ret = (JS)getCache.get(key);
if (ret == null) getCache.put(key, ret = _get(key));
return ret;
}
/** HTTP or HTTPS resource */
public static class HTTP extends Fountain {
private String url;
- public String toString() { return "Stream.HTTP:" + url; }
+ //public String toString() { return "Fountain.HTTP:" + url; }
public 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 JS _get(JS key) throws JSExn { return new HTTP(url + "/" + JSU.toString(key)); }
public String getCacheKey(Vec path) throws NotCacheableException { return url; }
public InputStream getInputStream() throws IOException { return new org.ibex.net.HTTP(url).GET(null, null); }
}
public static class File extends Fountain {
private String path;
public File(String path) { this.path = path; }
- public String toString() { return "file:" + path; }
+ //public String toString() { return "file:" + 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(JS key) throws JSExn { return new File(path + java.io.File.separatorChar + JSU.toString(key)); }
}
/** "unwrap" a Zip archive */
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 JS _get(JS key) throws JSExn { return new Zip(parent, path==null?JSU.toString(key):path+'/'+JSU.toString(key)); }
public InputStream getInputStream() throws IOException {
InputStream pis = parent.getInputStream();
ZipInputStream zis = new ZipInputStream(pis);
}
/** "unwrap" a Cab archive */
- /* temporarily disabled due to dependency issues
+ /*
public static class Cab extends Fountain {
private Fountain parent;
private String path;
public Cab(Fountain parent) { this(parent, null); }
public Cab(Fountain 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 JS _get(JS key) throws JSExn { return new Cab(parent, path==null?(String)key:path+'/'+(String)key); }
public InputStream getInputStream() throws IOException { return new MSPack(parent.getInputStream()).getInputStream(path); }
}
*/
- /** the Builtin resource */
- /* temporarily disabled due to dependency issues
- public static class Builtin extends Fountain {
+ public static class FromInputStream extends Fountain {
+ private final InputStream is;
+ public FromInputStream(InputStream is) { this.is = is; }
public String getCacheKey() throws NotCacheableException { throw new NotCacheableException(); }
- public InputStream getInputStream() throws IOException { return Platform.getBuiltinInputStream(); }
+ public InputStream getInputStream() throws IOException { return is; }
}
- */
/** shadow resource which replaces the graft */
- /* temporarily disabled due to dependency issues
public static class ProgressWatcher extends Fountain {
+ private final JS[] callargs = new JS[2];
final Fountain watchee;
- JS callback;
- public ProgressWatcher(Fountain watchee, JS callback) { this.watchee = watchee; this.callback = callback; }
+ Callable callback;
+ public ProgressWatcher(Fountain watchee, Callable callback) { this.watchee = watchee; this.callback = callback; }
public String getCacheKey() throws NotCacheableException { return watchee.getCacheKey(); }
public InputStream getInputStream() throws IOException {
final InputStream is = watchee.getInputStream();
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 Task() { public void perform() throws IOException, JSExn {
- callback.call(N(bytesDownloaded),
- N(is instanceof KnownLength ? ((KnownLength)is).getLength() : 0), null, null, 2);
- } });
+ callargs[0] = JSU.N(bytesDownloaded);
+ callargs[1] = JSU.N(is instanceof KnownLength.KnownLengthInputStream ?
+ ((KnownLength.KnownLengthInputStream)is).getLength() : 0);
+ try {
+ callback.run(callargs);
+ } catch (Exception e) {
+ Log.warn(ProgressWatcher.class, e);
+ }
return ret;
}
};
}
}
- */
/** subclass from this if you want a CachedInputStream for each path */
- /* temporarily disabled due to dependency issues
- public static class CachedStream extends Fountain {
+ /*
+ public static class CachedFountain extends Fountain {
private Fountain parent;
private boolean disk = false;
private String key;
public String getCacheKey() throws NotCacheableException { return key; }
CachedInputStream cis = null;
- public CachedStream(Fountain p, String s, boolean d) throws NotCacheableException {
+ public CachedFountain(Fountain p, String s, boolean d) throws NotCacheableException {
this.parent = p; this.disk = d; this.key = p.getCacheKey();
}
public InputStream getInputStream() throws IOException {
if (!disk) {
cis = new CachedInputStream(parent.getInputStream());
} else {
- java.io.File f = org.ibex.core.LocalStorage.Cache.getCacheFileForKey(key);
+ java.io.File f = org.ibex.plat.Platform.LocalStorage.Cache.getCacheFileForKey(key);
if (f.exists()) return new FileInputStream(f);
cis = new CachedInputStream(parent.getInputStream(), f);
}
projects / org.ibex.js.git / blobdiff