antville/helma
antville/helma
1
1
Fork 0
Code Issues 5 Pull requests 7 Projects Releases 5 Activity Actions

Various minor optimizations.

Browse source
This commit is contained in:
hns 2002-10-15 17:52:00 +00:00
parent c796392946
commit 063b42744c
1 changed files with 128 additions and 75 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

203
src/helma/framework/core/Skin.java
View file

@ -21,9 +21,9 @@ import java.util.*;
public final class Skin {
private Macro[] parts;
private Application app;
private char[] source;
private int sourceLength;
private final Application app;
private final char[] source;
private final int sourceLength;
private HashSet sandbox;
@ -98,20 +98,28 @@ public final class Skin {
/**
* Render this skin
*/
public void render (RequestEvaluator reval, Object thisObject, HashMap paramObject) throws RedirectException {
public void render (RequestEvaluator reval, Object thisObject, Map paramObject) throws RedirectException {
if (parts == null)
// check for endless skin recursion
if (++reval.skinDepth > 50)
throw new RuntimeException ("Recursive skin invocation suspected");
if (parts == null) {
reval.res.writeCharArray (source, 0, sourceLength);
reval.skinDepth--;
return;
}
try {
// check for endless skin recursion
if (++reval.skinDepth > 50)
throw new RuntimeException ("Recursive skin invocation suspected");
int written = 0;
Map handlerCache = null;
if (parts.length > 3) {
handlerCache = new HashMap();
}
for (int i=0; i<parts.length; i++) {
if (parts[i].start > written)
reval.res.writeCharArray (source, written, parts[i].start-written);
parts[i].render (reval, thisObject, paramObject);
parts[i].render (reval, thisObject, paramObject, handlerCache);
written = parts[i].end;
}
if (written < sourceLength)
@ -152,20 +160,20 @@ public final class Skin {
class Macro {
int start, end;
final int start, end;
String handler;
String name;
String prefix;
String suffix;
HashMap parameters;
String encoding;
String defaultValue;
Map parameters = null;
public Macro (int start, int end) {
this.start = start;
this.end = end;
parameters = new HashMap ();
int state = HANDLER;
boolean escape = false;
char quotechar = '\u0000';
@ -191,7 +199,9 @@ public final class Skin {
case '\'':
if (!escape && state == PARAMVALUE) {
if (quotechar == source[i]) {
parameters.put (lastParamName, b.toString());
String paramValue = b.toString();
if (!setSpecialParameter (lastParamName, paramValue))
addGenericParameter (lastParamName, paramValue);
lastParamName = null;
b.setLength (0);
state = PARAMNAME;
@ -215,7 +225,9 @@ public final class Skin {
b.setLength (0);
state = PARAMNAME;
} else if (state == PARAMVALUE && quotechar == '\u0000') {
parameters.put (lastParamName, b.toString());
String paramValue = b.toString();
if (!setSpecialParameter (lastParamName, paramValue))
addGenericParameter (lastParamName, paramValue);
lastParamName = null;
b.setLength (0);
state = PARAMNAME;
@ -238,21 +250,43 @@ public final class Skin {
}
}
if (b.length() > 0) {
if (lastParamName != null && b.length() > 0)
parameters.put (lastParamName, b.toString());
else if (state <= MACRO)
if (lastParamName != null && b.length() > 0) {
String paramValue = b.toString();
if (!setSpecialParameter (lastParamName, paramValue))
addGenericParameter (lastParamName, paramValue);
} else if (state <= MACRO)
name = b.toString().trim();
}
// get prefix and suffix from parameters
prefix = (String) parameters.get ("prefix");
suffix = (String) parameters.get ("suffix");
}
private boolean setSpecialParameter (String name, String value) {
if ("prefix".equals (name)) {
prefix = value;
return true;
} else if ("suffix".equals (name)) {
suffix = value;
return true;
} else if ("encoding".equals (name)) {
encoding = value;
return true;
} else if ("default".equals (name)) {
defaultValue = value;
return true;
}
return false;
}
private void addGenericParameter (String name, String value) {
if (parameters == null)
parameters = new HashMap ();
parameters.put (name, value);
}
/**
* Render the macro given a handler object
*/
public void render (RequestEvaluator reval, Object thisObject, HashMap paramObject) throws RedirectException {
public void render (RequestEvaluator reval, Object thisObject, Map paramObject, Map handlerCache) throws RedirectException {
if (sandbox != null && !sandbox.contains (getFullName ())) {
String h = handler == null ? "global" : handler;
@ -273,51 +307,57 @@ public final class Skin {
Object handlerObject = null;
Object[] arguments = new Object[1];
// pass a clone of the parameter map so if the script changes it,
// we still keep the original version.
arguments[0] = parameters.clone ();
// flag to tell whether we found our invocation target object
boolean objectFound = true;
if (handler != null) {
if (thisObject != null) {
// not a global macro - need to find handler object
// was called with this object - check it or its parents for matching prototype
if (!handler.equalsIgnoreCase ("this") && !handler.equalsIgnoreCase (app.getPrototypeName (thisObject))) {
// the handler object is not what we want
Object n = thisObject;
// walk down parent chain to find handler object
while (n != null) {
if (handler.equalsIgnoreCase (app.getPrototypeName (n))) {
handlerObject = n;
break;
}
n = app.getParentElement (n);
}
} else {
// we already have the right handler object
handlerObject = thisObject;
}
}
// try to get handler from handlerCache first
if (handlerCache != null)
handlerObject = handlerCache.get (handler);
if (handlerObject == null) {
// eiter because thisObject == null or the right object wasn't found in the object's parent path
// go check request path for an object with matching prototype
int l = reval.requestPath.size();
for (int i=l-1; i>=0; i--) {
Object pathelem = reval.requestPath.get (i);
if (handler.equalsIgnoreCase (app.getPrototypeName (pathelem))) {
handlerObject = pathelem;
break;
// if handler object wasn't found in cache retrieve it
if (handlerObject == null && thisObject != null) {
// not a global macro - need to find handler object
// was called with this object - check it or its parents for matching prototype
if (!handler.equals ("this") && !handler.equals (app.getPrototypeName (thisObject))) {
// the handler object is not what we want
Object n = app.getParentElement (thisObject);
// walk down parent chain to find handler object
while (n != null) {
if (handler.equals (app.getPrototypeName (n))) {
handlerObject = n;
break;
}
n = app.getParentElement (n);
}
} else {
// we already have the right handler object
handlerObject = thisObject;
}
}
}
// the macro handler object couldn't be found
if (handlerObject == null)
objectFound = false;
if (handlerObject == null) {
// eiter because thisObject == null or the right object wasn't found in the object's parent path
// go check request path for an object with matching prototype
int l = reval.requestPath.size();
for (int i=l-1; i>=0; i--) {
Object pathelem = reval.requestPath.get (i);
if (handler.equals (app.getPrototypeName (pathelem))) {
handlerObject = pathelem;
break;
}
}
}
// the macro handler object couldn't be found
if (handlerObject == null)
objectFound = false;
// else put the found handler object into the cache so we don't have to look again
else if (handlerCache != null)
handlerCache.put (handler, handlerObject);
}
} else {
// this is a global macro with no handler specified
@ -329,21 +369,35 @@ public final class Skin {
// if so, the macro evaluates to the function. Otherwise,
// a property/field with the name is used, if defined.
// remember length of response buffer before calling macro
int oldLength = reval.res.getBufferLength ();
if (reval.scriptingEngine.hasFunction (handlerObject, name+"_macro")) {
String funcName = name+"_macro";
if (reval.scriptingEngine.hasFunction (handlerObject, funcName)) {
// remember length of response buffer before calling macro
int bufLength = reval.res.getBufferLength ();
// remember length of buffer with prefix written out
int preLength = 0;
if (prefix != null) {
reval.res.write (prefix);
preLength = prefix.length();
}
// System.err.println ("Getting macro from function");
Object v = reval.scriptingEngine.invoke (handlerObject, name+"_macro", arguments, false);
// pass a clone of the parameter map so if the script changes it,
// Map param = ;
Object[] arguments = { parameters == null ?
new HashMap () :
new HashMap (parameters) };
Object v = reval.scriptingEngine.invoke (handlerObject, funcName, arguments, false);
// check if macro wrote out to response buffer
if (reval.res.getBufferLength () > oldLength) {
// insert prefix and append suffix
if (prefix != null)
reval.res.insert (oldLength, prefix);
if (suffix != null)
if (reval.res.getBufferLength () == bufLength + preLength) {
// function didn't write out anything itself
if (preLength > 0)
reval.res.setBufferLength (bufLength);
writeToResponse (v, reval.res, true);
} else {
if (suffix != null)
reval.res.write (suffix);
writeToResponse (v, reval.res, false);
} else {
writeToResponse (v, reval.res, true);
}
} else {
// System.err.println ("Getting macro from property");
@ -392,7 +446,7 @@ public final class Skin {
writeToResponse (value, reval.res, true);
}
private void renderFromParam (RequestEvaluator reval, HashMap paramObject) {
private void renderFromParam (RequestEvaluator reval, Map paramObject) {
if (paramObject == null)
reval.res.write ("[HopMacro error: Skin requires a parameter object]");
else {
@ -408,7 +462,7 @@ public final class Skin {
String text;
if (value == null) {
if (useDefault)
text = (String) parameters.get ("default");
text = defaultValue;
else
return;
} else {
@ -416,9 +470,10 @@ public final class Skin {
}
if (text == null || text.length() == 0)
return;
String encoding = (String) parameters.get ("encoding");
if (encoding != null)
text = encode (text, encoding);
res.write (prefix);
res.write (encode (text, encoding));
res.write (text);
res.write (suffix);
}
@ -427,8 +482,6 @@ public final class Skin {
* encodings on the macro output.
*/
String encode (String text, String encoding) {
if (encoding == null || text == null)
return text;
if ("html".equalsIgnoreCase (encoding))
return HtmlEncoder.encode (text);
if ("xml".equalsIgnoreCase (encoding))