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// 2009-01-27-22:19
package xtpipes.util;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.*;
import java.io.*;
import java.lang.reflect.*;
import java.util.HashMap;
import java.util.Stack;
import java.util.ArrayList;
import java.util.HashSet;
import xtpipes.XtpipesUni;
public class ScriptsManager extends DefaultHandler {
boolean inBody = false;
ArrayList<String> nsName = new ArrayList<String>(),
nsValue = new ArrayList<String>();
Stack<Integer> nsStack = new Stack<Integer>();
PrintWriter out = null, log = null;
HashMap<String,Object> scripts = null;
Method method = null;
boolean savemode=false;
String code="", match = null;
Stack<Object[]> stack = new Stack<Object[]>();
public ScriptsManager( PrintWriter out,
HashMap<String,Object> scripts,
Method method,
PrintWriter log, boolean trace ){
this.out = out;
this.log = (log==null)? new PrintWriter( System.err ) : log;
this.scripts = scripts;
this.method = method;
}
public void characters(char[] ch, int start, int length){
add( XtpipesUni.toUni(ch, start, length, "<>&") );
}
public void startElement(String ns, String sName,
String qName, Attributes atts) {
int top = nsName.size();
nsStack.push( new Integer(top) );
String key = (atts==null)?
null
: (qName + "::" + atts.getValue("class"));
boolean flag = (key != null) && scripts.containsKey(key);
if( !flag ){
key = qName;
flag = scripts.containsKey(key);
}
inBody = true;
String s = "<" + qName + "\n";
for(int i=0; i<atts.getLength(); i++ ){
String name = atts.getQName(i),
value = atts.getValue(i);
if( name.startsWith("xmlns") ){
if( (name.length() == 5) || (name.charAt(5) == ':') ){
boolean bool = false;
for(int k=nsName.size(); k>0; ){
k--;
if( ((String) nsName.get(k)) . equals(name) ){
bool = ((String) nsValue.get(k)) . equals(value);
break;
} }
if( !bool ){
nsName.add(name); nsValue.add(value);
} } }
s += " " + name + "=\"" +
XtpipesUni.toUni(value, "<>&\"") + "\"";
}
if( flag ){ HashSet<String> registry = new HashSet<String>();
for(int i=nsName.size(); i>top; ){
i--;
registry.add( (String) nsName.get(i) );
}
for(int i=top; i>0; ){
i--;
String nm = (String) nsName.get(i);
if( ! registry.contains(nm) ){
registry.add( nm );
s += " " + nm + "=\"" +
XtpipesUni.toUni( (String) nsValue.get(i), "<>&\"") + "\"";
} }
}
s += ">" ;
if( flag ){
Object [] state = { new Boolean(savemode), code, match };
stack.push( state );
savemode=true; code=""; match= key;
} else {
Object [] state = { new Boolean(savemode), null, null };
stack.push( state );
}
add( s );
}
public void endElement(String ns, String sName, String qName){
String s = "</" + qName + ">";
add( s );
Object [] state = (Object []) stack.pop();
if( (String) state[1] != null ){
Object parmValues[] = new Object[2];
parmValues[0] = scripts.get( match );
parmValues[1] = code;
try {
s = (String) method.invoke( null, parmValues );
} catch(java.lang.reflect.InvocationTargetException e){
log.println("--- ScriptsManager Error 1 --- " + e.getCause() );
log.flush();
} catch (Exception e){
log.println("--- ScriptsManager Error 2 --- " + e );
log.flush();
}
savemode = ((Boolean) state[0]).booleanValue();
code = (String) state[1];
match = (String) state[2];
int top = ((Integer) nsStack.pop()) . intValue();
for(int i=nsName.size(); i>top; ){
i--;
nsName.remove(i);
nsValue.remove(i);
}
if( !s.equals("") ){
int m = s.indexOf('>');
char [] attrs = s.substring(0,m).toCharArray();
int result = qName.length()+1,
mark = result,
from=-1,
control = 12
;
char delimiter = ' ';
String name="";
for(int i=result; i<m; i++ ){
attrs[result++] = attrs[i];
switch( control ){
case 12
: { if( attrs[i] == '=' ){
name = (new String(attrs,mark,result-mark-1)).trim();
control = 13
;
}
break; }
case 13
: { if( (attrs[i] == '"') || (attrs[i] == '\'') ){
delimiter = attrs[i];
control = 14
;
from = result;
}
break; }
case 14
: { if( attrs[i] == delimiter ){
if( name.startsWith("xmlns")
&& ((name.length() == 5) || (name.charAt(5) == ':')) ){
String value = (new String(attrs,from,result-from-1)).trim();
boolean bool = false;
for(int k=nsName.size(); k>0; ){
k--;
if( ((String) nsName.get(k)) . equals(name) ){
bool = ((String) nsValue.get(k)) . equals(value);
break;
} }
if( bool ){ result = mark; }
}
mark = result;
control = 12
;
}
break; }
} }
s = (new String(attrs,0, Math.min(result,attrs.length)))
+ s.substring(m);
add( s );
}
} else { int top = ((Integer) nsStack.pop()) . intValue();
for(int i=nsName.size(); i>top; ){
i--;
nsName.remove(i);
nsValue.remove(i);
}
}
}
protected void add(String s){
if( savemode ){ code+=s; }
else { out.print(s); }
} }
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