Added initial SCGI server and a handler for serving JARs from the filesystem.

[jsvc.git] / src / dolda / jsvc / util / JarContext.java

diff --git a/src/dolda/jsvc/util/JarContext.java b/src/dolda/jsvc/util/JarContext.java
new file mode 100644 (file)
index 0000000..cb16d37
--- /dev/null
+++ b/src/dolda/jsvc/util/JarContext.java
@@ -0,0 +1,93 @@
+package dolda.jsvc.util;
+
+import java.io.*;
+import java.util.*;
+import java.net.*;
+import dolda.jsvc.*;
+
+public class JarContext implements ServerContext {
+    private final long ctime;
+    private final String name;
+    public final ClassLoader loader;
+    protected final Properties sysconfig, libconfig;
+    
+    private static String mangle(File f) {
+       String ret = f.getName();
+       int p = ret.lastIndexOf('.');
+       if(p > 0)
+           ret = ret.substring(0, p);
+       for(f = f.getParentFile(); f != null; f = f.getParentFile())
+           ret = f.getName() + "/" + ret;
+       return(ret);
+    }
+
+    private void loadconfig() {
+       try {
+           InputStream pi = loader.getResourceAsStream("jsvc.properties");
+           if(pi != null) {
+               try {
+                   libconfig.load(pi);
+               } finally {
+                   pi.close();
+               }
+           }
+       } catch(IOException e) {
+           throw(new Error(e));
+       }
+    }
+
+    public Class<?> findboot() {
+       String clnm = libconfig("jsvc.bootstrap", null);
+       if(clnm == null)
+           return(null);
+       Class<?> bc;
+       try {
+           bc = loader.loadClass(clnm);
+       } catch(ClassNotFoundException e) {
+           return(null);
+       }
+       return(bc);
+    }
+
+    public JarContext(ClassLoader cl, String name) {
+       this.ctime = System.currentTimeMillis();
+       this.name = name;
+       this.loader = cl;
+       sysconfig = new Properties();
+       libconfig = new Properties();
+       
+       loadconfig();
+    }
+    
+    private static URL makingmewanttokilljavac(File jar) {
+       try {
+           return(jar.toURI().toURL());
+       } catch(MalformedURLException e) {
+           throw(new RuntimeException(e));
+       }
+    }
+
+    public JarContext(File jar) {
+       this(new URLClassLoader(new URL[] {makingmewanttokilljavac(jar)}, JarContext.class.getClassLoader()), mangle(jar));
+    }
+    
+    public long starttime() {
+       return(ctime);
+    }
+    
+    public String name() {
+       return(name);
+    }
+
+    public String sysconfig(String key, String def) {
+       return(sysconfig.getProperty(key, def));
+    }
+    
+    public String libconfig(String key, String def) {
+       return(libconfig.getProperty(key, def));
+    }
+    
+    public RequestThread worker(Responder root, Request req, ThreadGroup tg, String name) {
+       return(new RequestThread(root, req, tg, name));
+    }
+}