Changes for page Development-Custom Templates

Summary

• Page properties (3 modified, 0 added, 0 removed)

Details

Page properties

Title

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1		-Programming__WebObjects-Web Applications-Development-Custom Templates
	1	+Development-Custom Templates

Author

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1		-XWiki.smmccraw
	1	+XWiki.probert

Content

...	...	@@ -1,114 +1,109 @@
1		-== Petite Abeille ==
	1	+== Petite Abeille ==
2	2
3		-[The following solution is more involved than what is strictly needed. It may avoid
4		-the debug message, he is using some quasi-private stuff.
	3	+//The following solution is more involved than what is strictly needed. It may avoid the debug message, he is using some quasi-private stuff.//
5	5
6		-=== It can be quite easy ===
	5	+=== It can be quite easy ===
7	7
8		-{{panel}}
	7	+{{code}}
9	9
10		- protected WOElement myTemplate = null;
11		- public WOElement template() {
12		- if ( myTemplate == null ) {
13		- myTemplate = WOComponent.templateWithHTMLString( html, wod, null );
14		- }
15		- return myTemplate;
	9	+protected WOElement myTemplate = null;
	10	+public WOElement template() {
	11	+ if ( myTemplate == null ) {
	12	+ myTemplate = WOComponent.templateWithHTMLString( html, wod, null );
16	16	}
	14	+ return myTemplate;
	15	+}
17	17
18		-{{/panel}}
	17	+{{/code}}
19	19
20	20	A More Involved Solution:
21	21
22		-Here is a little example on how to overwrite WOComponent.template() so
23		-you can load the html template and wod from wherever you want )eg a jar
24		-file):
	21	+Here is a little example on how to overwrite WOComponent.template() so
	22	+ you can load the html template and wod from wherever you want )eg a jar
	23	+ file):
25	25
26	26	* First you will need to overwrite WOComponent.template()
27	27
28		-{{panel}}
	27	+{{code}}
29	29
30		- public WOElement template() {
31		- return Component.templateForComponent( this );
32		- }
	29	+public WOElement template() {
	30	+ return Component.templateForComponent( this );
	31	+}
33	33
34		-{{/panel}}
	33	+{{/code}}
35	35
36	36	* Now, templateForComponent could look like this:
37	37
38		-{{panel}}
	37	+{{code}}
39	39
40		- public static WOElement templateForComponent(WOComponent aComponent) {
41		- {
42		- String aName = aComponent.name();
43		- WOElement anElement = (WOElement) _elementCache.get( aName );
44		- if ( anElement == null ) {
45		- String anHTMLString = Component.componentTemplateWithExtension( aComponent, ".html" );
46		- String aDescriptionString = Component.componentTemplateWithExtension( aComponent, ".wod" );
47		- anElement = WOComponent.templateWithHTMLString ( anHTMLString, aDescriptionString, null );
48		- if ( aComponent.isCachingEnabled() == true ) {
49		- _elementCache.put( aName, anElement );
50		- }
	39	+public static WOElement templateForComponent(WOComponent aComponent) {
	40	+if ( aComponent != null ){
	41	+ String aName = aComponent.name();
	42	+ WOElement anElement = (WOElement) _elementCache.get( aName );
	43	+ if ( anElement == null ) {
	44	+ String anHTMLString = Component.componentTemplateWithExtension( aComponent, ".html" );
	45	+ String aDescriptionString = Component.componentTemplateWithExtension( aComponent, ".wod" );
	46	+ anElement = WOComponent.templateWithHTMLString ( anHTMLString, aDescriptionString, null );
	47	+ if ( aComponent.isCachingEnabled() == true ) {
	48	+ _elementCache.put( aName, anElement );
51	51	}
52		- return anElement;
53	53	}
54		- throw new IllegalArgumentException ( "Component.templateForComponent: null component." );
55		-
56		-{{/panel}}
57		-
	51	+ return anElement;
58	58	}
	53	+throw new IllegalArgumentException ( "Component.templateForComponent: null component." );
	54	+}
59	59
60		-* The componentTemplateWithExtension method could look like the following:
	56	+{{/code}}
61	61
62		-{{panel}}
	58	+* The componentTemplateWithExtension method could look like the following:
63	63
64		- private static String componentTemplateWithExtension(WOComponent aComponent, String anExtension) {
65		- if ( anExtension !=_null_)_{
66		-____String_aResource_=_aComponent.name()_+_anExtension;
67		-____InputStream_anInputStream_=_Component.componentStreamForResource(_aComponent,_aResource_);
68		-____if_(_anInputStream_!= null ) {
69		- StringBuffer aBuffer = new StringBuffer();
70		- try {
71		- BufferedInputStream aBufferedStream = new BufferedInputStream( anInputStream );
72		- InputStreamReader aStreamReader = new InputStreamReader( aBufferedStream );
73		- int aChar = -1;
74		- while ( ( aChar = aStreamReader.read() ) !=_-1_)_{
75		-__________aBuffer.append(_(char)_aChar_);
76		-________}
77		-__________anInputStream.close();
78		-________}_catch(Exception_anException)_{
79		-__________Log.warning(_anException_);
80		-________}
81		-________return_aBuffer.toString();
82		-______}
83		-______throw_new_RuntimeException_(_"Component.componentTemplateWithExtension:_resource_not_found:_'"_+__aResource_+_"'."_);
84		-____}
85		-____throw_new_IllegalArgumentException_(_"Component.componentTemplateWithExtension:_null_extension."_);
86		-__}
87		-__}
	60	+{{code}}
88	88
89		-{{/panel}}
90		-
91		-* //And//finally//componentStreamForResource//could//be//something//along//these//
92		-lines~://
93		-
94		-{{panel}}
95		-
96		-__private_static_InputStream_componentStreamForResource(WOComponent_aComponent,_String_aResource)_{
97		-__if_(_aResource_!= null ) {
98		- File aDirectory = new File( System.getProperty( "user.dir" ) );
99		- File aFile = new File( aDirectory, aResource );
100		- if ( aFile.exists() == true ) {
101		- try {
102		- return new FileInputStream( aFile );
	62	+private static String componentTemplateWithExtension(WOComponent aComponent, String anExtension) {
	63	+if ( anExtension != null ) {
	64	+ String aResource = aComponent.name() + anExtension;
	65	+ InputStream anInputStream = Component.componentStreamForResource( aComponent, aResource );
	66	+ if ( anInputStream != null ) {
	67	+ StringBuffer aBuffer = new StringBuffer();
	68	+ try {
	69	+ BufferedInputStream aBufferedStream = new BufferedInputStream( anInputStream );
	70	+ InputStreamReader aStreamReader = new InputStreamReader( aBufferedStream );
	71	+ int aChar = -1;
	72	+ while ( ( aChar = aStreamReader.read() ) != -1 ) {
	73	+ aBuffer.append( (char) aChar );
	74	+ }
	75	+ anInputStream.close();
103	103	} catch(Exception anException) {
104		- Log.warning( anException);
	77	+ Log.warning( anException );
105	105	}
	79	+ return aBuffer.toString();
106	106	}
107		- return aComponent.getClass().getResourceAsStream( aResource );
	81	+ throw new RuntimeException ( "Component.componentTemplateWithExtension: resource not found: '" + aResource + "'." );
108	108	}
109		- throw new IllegalArgumentException( "Component.componentStreamForResource: null resource." );
110		- }
	83	+}
	84	+throw new IllegalArgumentException ( "Component.componentTemplateWithExtension: null extension." );
	85	+}
111	111
112		-{{/panel}}
	87	+{{/code}}
113	113
114		-Category:WebObjects
	89	+* And finally componentStreamForResource could be something along these:
	90	+
	91	+{{code}}
	92	+
	93	+private static InputStream componentStreamForResource(WOComponent aComponent, String aResource) {
	94	+if ( aResource != null ) {
	95	+ File aDirectory = new File( System.getProperty( "user.dir" ) );
	96	+ File aFile = new File( aDirectory, aResource );
	97	+ if ( aFile.exists() == true ) {
	98	+ try {
	99	+ return new FileInputStream( aFile );
	100	+ } catch(Exception anException) {
	101	+ Log.warning( anException);
	102	+ }
	103	+ }
	104	+ return aComponent.getClass().getResourceAsStream( aResource );
	105	+}
	106	+throw new IllegalArgumentException( "Component.componentStreamForResource: null resource." );
	107	+}
	108	+
	109	+{{/code}}