moved to helma.util package

src/helma/objectmodel/SystemProperties.java

@@ -1,154 +0,0 @@
-// Property.java
-// Copyright (c) Hannes Wallnöfer 1997-2000
- 
-package helma.objectmodel;
-
-import helma.util.*;
-import java.util.*;
-import java.io.*;
-
-/**
- *  A property dictionary that is updated from a property file each time the
- *  file is modified. It is also case insensitive.
- */
- 
-public final class SystemProperties extends Properties {
-
-    private Properties props;        // wrapped properties
-    private Properties newProps;    // used while building up props
-    private Properties defaultProps;
-    private File file;
-    private long lastread, lastcheck;
-
-    final static long cacheTime = 1500l;
-
-
-    public SystemProperties () {
-	this (null, null);
-    }
-
-    public SystemProperties (InputStream in) {
-	this (null, null);
-	try {
-	    load (in);
-	} catch (Exception x) {
-	    IServer.getLogger().log ("Error reading properties from file "+file+": "+x);
-	} finally {
-	    try {
-	        in.close ();
-	    } catch (Exception ignore) {}
-	}
-	lastread = System.currentTimeMillis ();
-    }	
-
-    public SystemProperties (String filename) {
-	this (filename, null);
-    }
-
-    public SystemProperties (Properties defaultProps) {
-	this (null, defaultProps);
-    }
-
-    public SystemProperties (String filename, Properties defaultProps) {
- 	// IServer.getLogger().log ("building sysprops with file "+filename+" and node "+node);
-	this.defaultProps = defaultProps;
-	props = defaultProps == null ?
-	        new Properties () : new Properties (defaultProps);
-
-	if (filename != null) {
-	    file = new File (filename);
-	    checkFile ();
-	}
-    }
-
-    public boolean wasModified () {
-	return file != null && file.exists() && file.lastModified () > lastread;
-    }
-
-    public long lastModified () {
-	return file == null || !file.exists () ? 0 : file.lastModified ();
-    }
-
-
-    private synchronized void checkFile () {
-	if (wasModified ()) {
-	    // IServer.getLogger().log ("Reading properties from file "+file);
-	    newProps = defaultProps == null ?
-	        new Properties () : new Properties (defaultProps);
-	    try {
-	        FileInputStream bpin = new FileInputStream (file);
-	        load (bpin);
-	        bpin.close ();
-	    } catch (Exception x) {
-	        IServer.getLogger().log ("Error reading properties from file "+file+": "+x);
-	    }
-	    lastread = System.currentTimeMillis ();
-	    props = newProps;
-	    newProps = null;
-	}
-	lastcheck = System.currentTimeMillis ();
-    }
-
-    /*
-     * This should not be used directly if properties are read from file,
-     *  otherwise changes will be lost whe the file is next modified.
-     */
-    public Object put (Object key, Object value) {
-	if (newProps == null)
-	    return props.put (key.toString().toLowerCase(), value);
-	else
-	    return newProps.put (key.toString().toLowerCase(), value);
-    }
-
-    public Object get (Object key) {
-	return props.get (key);
-    }
-
-    public Object remove (Object key) {
-	return props.remove (key);
-    }
-
-    public void clear () {
-	props.clear ();
-    }
-
-    public boolean contains (Object obj) {
-	return props.contains (obj);
-    }
-
-    public boolean containsKey (Object key) {
-	return props.containsKey (key);
-    }
-
-    public boolean isEmpty () {
-	return props.isEmpty ();
-    }
-
-    public String getProperty (String name) {
-	if (System.currentTimeMillis () - lastcheck > cacheTime)
-	    checkFile ();
-	return props.getProperty (name.toLowerCase());
-    }
-
-    public String getProperty (String name, String defaultValue) {
-	if (System.currentTimeMillis () - lastcheck > cacheTime)
-	    checkFile ();
-	return props.getProperty (name.toLowerCase(), defaultValue);
-    }
-
-    public Enumeration keys () {
-	if (System.currentTimeMillis () - lastcheck > cacheTime)
-	    checkFile ();
-	return props.keys();
-    }
-
-    public Enumeration elements () {
-	if (System.currentTimeMillis () - lastcheck > cacheTime)
-	    checkFile ();
-	return props.elements();
-    }
-
-}
-
-
-