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Posted to dev@tomcat.apache.org by co...@apache.org on 2001/08/17 06:07:45 UTC
cvs commit: jakarta-tomcat/src/share/org/apache/tomcat/util IntrospectionUtils.java
costin 01/08/16 21:07:45
Modified: src/share/org/apache/tomcat/util IntrospectionUtils.java
Log:
Started to implement the command line enhancements. Adding a command
line option used to be pretty tricky, plus we want the object to be
usable from ant or as a general bean.
Now introspection util can handle all the command line processing by
using the same code that deals with server.xml. Tomcat, StopTomcat,
etc will be far simpler.
( I tried to implement the code to send options to ContextManager, but it
got too complicated - reusing the well tested introspection code seems a
bette idea than complicating things up )
Revision Changes Path
1.12 +114 -19 jakarta-tomcat/src/share/org/apache/tomcat/util/IntrospectionUtils.java
Index: IntrospectionUtils.java
===================================================================
RCS file: /home/cvs/jakarta-tomcat/src/share/org/apache/tomcat/util/IntrospectionUtils.java,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -r1.11 -r1.12
--- IntrospectionUtils.java 2001/06/28 07:11:14 1.11
+++ IntrospectionUtils.java 2001/08/17 04:07:45 1.12
@@ -93,6 +93,11 @@
public static void setAttribute( Object proxy, String n, Object v)
throws Exception
{
+ if( proxy instanceof AttributeHolder ) {
+ ((AttributeHolder)proxy).setAttribute( n, v );
+ return;
+ }
+
Method executeM=null;
Class c=proxy.getClass();
Class params[]=new Class[2];
@@ -376,6 +381,15 @@
return new String(chars);
}
+ public static String unCapitalize(String name) {
+ if (name == null || name.length() == 0) {
+ return name;
+ }
+ char chars[] = name.toCharArray();
+ chars[0] = Character.toLowerCase(chars[0]);
+ return new String(chars);
+ }
+
// -------------------- Class path tools --------------------
/** Add all the jar files in a dir to the classpath,
@@ -487,35 +501,89 @@
// -------------------- Mapping command line params to setters
- public static void processArgs(Object proxy, String args[],
- String args0[], String args1[])
+ public static boolean processArgs(Object proxy, String args[] )
throws Exception
{
+ String args0[]=null;
+ if( null != findMethod( proxy.getClass(), "getOptions1", new Class[] {} )) {
+ args0=(String[])callMethod0( proxy, "getOptions1");
+ }
+ if( args0==null ) {
+ args0=findBooleanSetters(proxy.getClass());
+ }
+ Hashtable h=null;
+ if( null != findMethod( proxy.getClass(), "getOptionAliases", new Class[] {} )) {
+ h=(Hashtable)callMethod0( proxy, "getOptionAliases");
+ }
+ return processArgs( proxy, args, args0, null, h );
+ }
+
+ public static boolean processArgs(Object proxy, String args[],
+ String args0[], String args1[], Hashtable aliases )
+ throws Exception
+ {
for( int i=0; i< args.length; i++ ) {
String arg=args[i];
if( arg.startsWith("-"))
arg=arg.substring(1);
+ if( aliases != null && aliases.get( arg ) != null)
+ arg=(String)aliases.get(arg);
- for( int j=0; j< args0.length ; j++ ) {
- if( args0[j].equalsIgnoreCase( arg )) {
- IntrospectionUtils.setAttribute( proxy, args0[j], "true");
- break;
+ if( args0!=null ) {
+ boolean set=false;
+ for( int j=0; j< args0.length ; j++ ) {
+ if( args0[j].equalsIgnoreCase( arg )) {
+ IntrospectionUtils.setProperty( proxy, args0[j], "true");
+ set=true;
+ break;
+ }
}
+ if( set ) break;
}
- for( int j=0; j< args1.length ; j++ ) {
- if( args1[j].equalsIgnoreCase( arg )) {
- i++;
- if( i < args.length )
- IntrospectionUtils.setAttribute( proxy,
- args1[j], args[i]);
- break;
+ if( args1!=null ) {
+ for( int j=0; j< args1.length ; j++ ) {
+ if( args1[j].equalsIgnoreCase( arg )) {
+ i++;
+ if( i >= args.length )
+ return false;
+ IntrospectionUtils.setProperty( proxy,
+ arg, args[i]);
+ break;
+ }
}
+ } else {
+ // if args1 is not specified, assume all other options have param
+ i++;
+ if( i >= args.length )
+ return false;
+ IntrospectionUtils.setProperty( proxy,
+ arg, args[i]);
}
+
}
+ return true;
}
// -------------------- other utils --------------------
-
+ public static String[] findBooleanSetters( Class c ) {
+ Method m[]=findMethods( c );
+ if( m==null ) return null;
+ Vector v=new Vector();
+ for( int i=0; i<m.length; i++ ) {
+ if( m[i].getName().startsWith("set") &&
+ m[i].getParameterTypes().length == 1 &&
+ "boolean".equals( m[i].getParameterTypes()[0].getName()) ) {
+ String arg=m[i].getName().substring( 3 );
+ v.addElement( unCapitalize( arg ));
+ }
+ }
+ String s[]=new String[v.size()];
+ for( int i=0; i<s.length; i++ ) {
+ s[i]=(String)v.elementAt( i );
+ }
+ return s;
+ }
+
static Hashtable objectMethods=new Hashtable();
public static Method[] findMethods( Class c ) {
@@ -583,7 +651,7 @@
return false;
}
- public static void callMethod1( Object target,
+ public static Object callMethod1( Object target,
String methodN,
Object param1,
String typeParam1,
@@ -606,10 +674,30 @@
if( m==null )
throw new NoSuchMethodException(target.getClass().getName() +
" " + methodN);
- m.invoke(target, new Object[] {param1 } );
+ return m.invoke(target, new Object[] {param1 } );
}
- public static void callMethodN( Object target,
+ public static Object callMethod0( Object target,
+ String methodN)
+ throws Exception
+ {
+ if( target==null ) {
+ d("Assert: Illegal params " + target );
+ return null;
+ }
+ if( dbg > 0 ) d("callMethod0 " + target.getClass().getName() + "." + methodN);
+
+ Class params[]=new Class[0];
+ Method m=findMethod( target.getClass(), methodN, params);
+ if( m==null )
+ throw new NoSuchMethodException(target.getClass().getName() +
+ " " + methodN);
+ return m.invoke(target, emptyArray );
+ }
+
+ static Object[] emptyArray=new Object[] {};
+
+ public static Object callMethodN( Object target,
String methodN,
Object params[],
Class typeParams[] )
@@ -620,9 +708,9 @@
if( m== null ) {
d("Can't find method " + methodN + " in " +
target + " CLASS " + target.getClass());
- return;
+ return null;
}
- m.invoke( target, params );
+ Object o=m.invoke( target, params );
if(dbg > 0 ) {
// debug
@@ -635,6 +723,7 @@
sb.append(")");
d(sb.toString());
}
+ return o;
}
// -------------------- Get property --------------------
@@ -643,6 +732,12 @@
public static interface PropertySource {
public String getProperty( String key );
+
+ }
+
+ public static interface AttributeHolder {
+
+ public void setAttribute( String key, Object o );
}