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Resources are unpacked and cached in a temporary directory on the

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filesystem. This should speed up subsequent loads as they won't have to be
decompressed.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2117 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
2003-01-13 22:50:36 +00:00
parent 100aa3ace3
commit e400ba5be6
2 changed files with 152 additions and 10 deletions
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src/java/com/threerings/resource/ResourceManager.java
+80 -2
View File
@@ -1,8 +1,9 @@
//
// $Id: ResourceManager.java,v 1.18 2002/11/20 02:00:36 mdb Exp $
// $Id: ResourceManager.java,v 1.19 2003/01/13 22:50:36 mdb Exp $
package com.threerings.resource;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
@@ -21,6 +22,10 @@ import java.util.List;
import java.util.Properties;
import java.util.StringTokenizer;
import javax.imageio.stream.FileImageInputStream;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.stream.MemoryCacheImageInputStream;
import com.samskivert.util.StringUtil;
import com.threerings.resource.DownloadManager.DownloadDescriptor;
@@ -486,6 +491,40 @@ public class ResourceManager
throw new FileNotFoundException(errmsg);
}
/**
* Fetches the specified resource as an {@link ImageInputStream} and
* one that takes advantage, if possible, of caching of unpacked
* resources on the local filesystem.
*
* @exception FileNotFoundException thrown if the resource could not
* be located in any of the bundles in the specified set, or if the
* specified set does not exist.
* @exception IOException thrown if a problem occurs locating or
* reading the resource.
*/
public ImageInputStream getImageResource (String path)
throws IOException
{
// first look for this resource in our default resource bundle
for (int i = 0; i < _default.length; i++) {
File file = _default[i].getResourceFile(path);
if (file != null) {
return new FileImageInputStream(file);
}
}
// if we didn't find anything, try the classloader
String rpath = _rootPath + path;
InputStream in = _loader.getResourceAsStream(rpath);
if (in != null) {
return new MemoryCacheImageInputStream(new BufferedInputStream(in));
}
// if we still haven't found it, we throw an exception
String errmsg = "Unable to locate image resource [path=" + path + "]";
throw new FileNotFoundException(errmsg);
}
/**
* Returns an input stream from which the requested resource can be
* loaded. <em>Note:</em> this performs a linear search of all of the
@@ -518,7 +557,7 @@ public class ResourceManager
if (instr != null) {
// Log.info("Found resource [rset=" + rset +
// ", bundle=" + bundles[ii].getSource().getPath() +
// ", path=" + path + "].");
// ", path=" + path + ", in=" + instr + "].");
return instr;
}
}
@@ -527,6 +566,45 @@ public class ResourceManager
"Unable to locate resource [set=" + rset + ", path=" + path + "]");
}
/**
* Fetches the specified resource as an {@link ImageInputStream} and
* one that takes advantage, if possible, of caching of unpacked
* resources on the local filesystem.
*
* @exception FileNotFoundException thrown if the resource could not
* be located in any of the bundles in the specified set, or if the
* specified set does not exist.
* @exception IOException thrown if a problem occurs locating or
* reading the resource.
*/
public ImageInputStream getImageResource (String rset, String path)
throws IOException
{
// grab the resource bundles in the specified resource set
ResourceBundle[] bundles = getResourceSet(rset);
if (bundles == null) {
throw new FileNotFoundException(
"Unable to locate image resource [set=" + rset +
", path=" + path + "]");
}
// look for the resource in any of the bundles
int size = bundles.length;
for (int ii = 0; ii < size; ii++) {
File file = bundles[ii].getResourceFile(path);
if (file != null) {
// Log.info("Found image resource [rset=" + rset +
// ", bundle=" + bundles[ii].getSource() +
// ", path=" + path + ", file=" + file + "].");
return new FileImageInputStream(file);
}
}
String errmsg = "Unable to locate image resource [set=" + rset +
", path=" + path + "]";
throw new FileNotFoundException(errmsg);
}
/**
* Returns a reference to the resource set with the specified name, or
* null if no set exists with that name. Services that wish to load