Re: asset expansion question

[based2]

http://tapestry.apache.org/assets.html
http://tapestry.1045711.n5.nabble.com/T5-Assets-resources-and-file-path-td2416655.html

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Re: asset expansion question

[Josh Canfield]

 I want the server root path http://people.apache.org/~uli/ to
 be configurable ,so it can be configured using tapestry symbols.I tried
 this

 using AssetFactory,URIResource,and symbols,but failed

  Can anyone help me?

Please define failed? What is the error, or what does the generated
HTML look like?

On Tue, Mar 15, 2011 at 4:13 AM, jqzone jqz...@gmail.com wrote:
 Hallo,I have a new question!

 I'm writing a asset expansion like this

  lmg src=${asset:uri:http://people.apache.org/~uli/images/tapestry.png} /

 I implememt a Resource using URI, and add a asset configure,It works well

 Now I want to change it like this img
 src=${asset:uri:images/tapestry.png}/img

 I want the server root path http://people.apache.org/~uli/ to
 be configurable ,so it can be configured using tapestry symbols.I tried
 this

 using AssetFactory,URIResource,and symbols,but failed

  Can anyone help me?


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Re: asset expansion question

[jqzone]

Here is my code.
TemplateResource.java

public class TemplateResource implements Resource{

private URI uri;
 public TemplateResource(String uri) {
try {
this.uri = new URI(uri);
} catch (URISyntaxException e) {
throw new RuntimeException(e);
}
}

public TemplateResource(URI uri) throws MalformedURLException {
this.uri = uri;
}

public TemplateResource(File file) throws MalformedURLException {
this(file.toURI());
}

public TemplateResource(URL url) throws URISyntaxException,
MalformedURLException {
this(url.toURI());
}

protected Resource newResource(String uri) {
return new TemplateResource(uri);
}

@Override
public boolean exists() {
InputStream is = null;

try {
is = uri.toURL().openStream();
int i = is.read();
return true;
} catch (Exception e) {
return false;
} finally {
try {
if (is != null)
is.close();
} catch (Exception e) {
// do nothing
}
}
}

@Override
public Resource forFile(String relativePath) {
return createResource(relativePath);
}

@Override
public Resource forLocale(Locale locale) {
for (String path : new LocalizedNameGenerator(this.uri.toString(), locale))
{
Resource potential = createResource(path);

if (potential.exists()) return potential;
}

return null;
}
private Resource createResource(String path)
{
if (this.uri.toString().equals(path)) return this;

return newResource(path);
}

@Override
public String getFile() {
String fileName = ;
String completePath = toURL().getPath();

if (completePath != null)
{
if (completePath.lastIndexOf('/')  0)
fileName = completePath.substring(completePath.lastIndexOf('/') + 1);
else
fileName = completePath;
}

return fileName;
}

@Override
public String getFolder() {
String folderName = ;
String completePath = toURL().getPath();

if (completePath != null)
{
int lastSlash = completePath.lastIndexOf('/');
if (lastSlash  0)
folderName = completePath.substring(0, lastSlash);
}

return folderName;
}

@Override
public String getPath() {
return toURL().toExternalForm();
}

@Override
public InputStream openStream() throws IOException {
return uri.toURL().openStream();
}

@Override
public URL toURL() {
try {
if (exists())
return uri.toURL();
} catch (Exception e) {
// do nothing
}

return null;
}

@Override
public Resource withExtension(String extension) {
throw new RuntimeException(not implemented yet!);
}

@Override
public boolean equals(Object obj)
{
if (obj == null) return false;

if (obj == this) return true;

if (obj.getClass() != getClass()) return false;

TemplateResource other = (TemplateResource) obj;

return other.getPath().equals(getPath());
}
}


TemplateAssetFactory.java

public class TemplateAssetFactory implements AssetFactory {

private final boolean invariant;
private Resource rootResource;

public TemplateAssetFactory() {
this.invariant = true;
}

@Override
public Asset createAsset(final Resource resource) {
 return new AbstractAsset(invariant) {

@Override
public String toClientURL() {
return resource.getPath();
}

@Override
public Resource getResource() {
return resource;
}
};
}

@Override
public Resource getRootResource() {
rootResource = new TemplateResource(/);
return rootResource;
}

}

TemplateProvider.java

@Target({ ElementType.PARAMETER, ElementType.FIELD, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface TemplateProvider {

}

TemplateAssetConstants.java
public class TemplateAssetConstants extends AssetConstants {

public static final String TEMPLATE = template;
}

Some config in AppModule.java

@Marker(TemplateProvider.class)
public AssetFactory buildTemplateAssetFactory() {
return new TemplateAssetFactory();
}

public void contributeAssetSource(
MappedConfigurationString, AssetFactory configuration,
@TemplateProvider AssetFactory templateAssetFactory) {
configuration
.add(TemplateAssetConstants.TEMPLATE, templateAssetFactory);
}


some code in tml :  x:dynamic template=asset:template:
http://192.168.1.105:8080/dynamic2.html;

It works well.

Now I wnat to change it like this x:dynamic
template=asset:template:dynamic2.html

I want the server root path http://192.168.1.105:8080/ is configurable using
tapestry symbols,so how can i change my code ?