* This resource manager looks for JoComponents in the given JoObject using * lookupName. Its a wrapper around another JoObject which it uses as the * lookup base. *
* JoContainerResourceManagers need to be hooked up in a queue. They do not call
* lookupName with 'acquire'.
*/
public class JoContainerResourceManager extends WOResourceManager {
// TBD: add support for string bundles!
protected WOResourceManager parentRM;
protected IJoContext context; /* note req internally, but passed on */
protected Object container;
protected Map_name
* which conforms to the IJoComponentDefinition interface.
*
* @return an IJoComponentDefinition object
*/
protected IJoComponentDefinition findJoComponentWithName(String _name) {
// TBD: change that to check for IWOComponentDefinition objects
if (_name == null)
return null;
/* check cache */
IJoComponentDefinition f = this.joComponents.get(_name);
if (f != null)
return f;
if (this.joComponents.containsKey(_name)) /* can contain null */
return null;
/* Lookup object. Note that we do NOT acquire. Component acquisition is done
* in the resource manager hierarchy!
*/
Object o = IJoSecuredObject.Utility.lookupName
(this.container, _name, this.context, false /* do not acquire */);
/* check and cache result */
if (o instanceof IJoComponentDefinition)
f = (IJoComponentDefinition)o;
else if (o instanceof Exception) {
/* In a protected folder this is not really an error because name
* validation happens before object lookup. Ie you get a security
* exception even if the folder does not really contain the named object!
*/
// TBD: do we want to change that?
log.warn("error looking up JoObject with name '" + _name + "'\n" +
" container: " + this.container + "\n" +
" error: " + o);
}
else if (o != null) {
log.warn("found a JoObject with name '" + _name + "', but its not a " +
"component provider: " + o);
}
this.joComponents.put(_name, f /* can be null */);
//System.err.println("findJSComponentWithName(\"" + _name +"\"): " + f);
return f;
}
/**
* Note: the path contains the pagename. Hence we need to lookup till
* length-1.
*
* @param _path - the array of names to traverse
* @return the WOResourceManager responsible for the path
*/
protected WOResourceManager findResourceManagerForPath(final String[] _path) {
int len = _path != null ? _path.length : 0;
if (len < 2) return this;
Object o = this.container;
len--; // last name is the pagename
for (int i = 0; i < len && o != null; i++) {
o = IJoSecuredObject.Utility.lookupName
(o, _path[i], this.context, false /* do not acquire */);
if (o instanceof Exception) {
log.error("could not locate resource manager: " + this,
(Exception)o);
return null;
}
}
if (o == null)
return null;
final WOResourceManager rm = (WOResourceManager)NSKeyValueCoding.Utility
.valueForKey(o, "resourceManager");
if (rm != null)
return rm;
return lookupResourceManager(o, this.context);
}
/* class lookup */
@Override
public Class lookupComponentClass(final String _name) {
/* Note: this is only called for components */
if (_name.indexOf('.') > 0) {
final String[] path = _name.split("\\.");
final WOResourceManager rm = this.findResourceManagerForPath(path);
if (rm != null) return rm.lookupComponentClass(path[path.length - 1]);
}
final IJoComponentDefinition joComp = this.findJoComponentWithName(_name);
return (joComp != null)
? joComp.lookupComponentClass(_name, this)
: this.parentRM.lookupComponentClass(_name);
}
@Override
public Class lookupDynamicElementClass(final String _name) {
/* Only invoked to find dynamic elements, hence we do not need to check the
* filesystem.
*/
return this.parentRM.lookupDynamicElementClass(_name);
}
@Override
public Class lookupDirectActionClass(final String _name) {
// TBD: JS direct actions are DIFFERENT. They have no WOComponentDefinition
log.info("JoDirectActions are not yet supported");
return this.parentRM.lookupDirectActionClass(_name);
}
/* component lookup */
@Override
public IWOComponentDefinition definitionForComponent
(final String _name, final String[] _langs, WOResourceManager _clsctx)
{
if (_name.indexOf('.') > 0) {
/* this splits component names into lookup pathes. Eg you can write in
* the component name:
* common.events.view
* Do not mix this up with component extensions!
*/
String[] path = _name.split("\\.");
WOResourceManager rm = this.findResourceManagerForPath(path);
if (rm != null)
return rm.definitionForComponent(path[path.length-1], _langs, _clsctx);
}
IJoComponentDefinition joComponent = this.findJoComponentWithName(_name);
if (joComponent != null) {
/* Note: we pass in OUR RM, per default the method receives the top-level
* RM! If we don't the lookup context is the application RM which does
* not consider our RM-traversal list.
*/
return joComponent.definitionForComponent(_name, _langs, this /* US */);
}
if (this.parentRM == null) {
log.error("no parent-RM to lookup '" + _name + "': " + this);
return null;
}
return this.parentRM.definitionForComponent(_name, _langs, _clsctx);
}
/* string tables */
private static final String DefaultTableName = "LocalizableStrings";
/**
* This method checks whether the Jo container object contains a
* 'LocalizableStrings' object. If so, it attempts to resolve the
* 'resourceBundle' key on that object.
*
* @param _table - name of string table, we only support 'null'
* @param _fwname - name of framework, we ignore this
* @param _langs - languages, we ignore this (to be managed by OFS)
* @return a java.util.ResourceBundle object with the strings, or null
*/
@Override
public ResourceBundle stringTableWithName
(String _table, String _fwname, String[] _langs)
{
// Note: for now we assume that localization would be done by the OFS object
// itself.
/* we only process 'null' names (for now) */
if (_table != null && !_table.equals(DefaultTableName))
return this.parentRM.stringTableWithName(_table, _fwname, _langs);
Object o = IJoSecuredObject.Utility.lookupName
(this.container, DefaultTableName, this.context, false /* no acquire */);
if (o == null)
return this.parentRM.stringTableWithName(_table, _fwname, _langs);
if (o instanceof Exception) {
if (log.isInfoEnabled()) {
log.info("could not lookup '" + DefaultTableName + "' in: " +
this.container);
}
return this.parentRM.stringTableWithName(_table, _fwname, _langs);
}
if (o instanceof ResourceBundle)
return (ResourceBundle)o;
Object rb = NSKeyValueCoding.Utility.valueForKey(o, "resourceBundle");
if (rb == null) {
log.warn("LocalizableStrings object returned no resourceBundle: " + o);
return null;
}
if (rb instanceof ResourceBundle)
return (ResourceBundle)rb;
log.warn("LocalizableStrings returned a resourceBundle, " +
"but its not a java.util.ResourceBundle: " + o + "\n object: " + rb);
return null;
}
/* description */
@Override
public void appendAttributesToDescription(final StringBuilder _d) {
super.appendAttributesToDescription(_d);
if (this.container != null) {
_d.append(" folder=");
_d.append(this.container);
}
if (this.context instanceof WOContext) {
_d.append(" wctx=");
_d.append(((WOContext)this.context).contextID());
}
else if (this.context != null) {
_d.append(" ctx=");
_d.append(this.context.getClass().getSimpleName());
}
if (this.parentRM != null) {
_d.append(" parent[");
_d.append(this.parentRM.getClass().getSimpleName());
_d.append("]");
}
}
}