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package com.sun.jersey.server.impl.template;
import com.sun.jersey.spi.template.ResolvedViewable;
import com.sun.jersey.api.view.Viewable;
import com.sun.jersey.core.spi.component.ProviderServices;
import com.sun.jersey.spi.template.TemplateProcessor;
import com.sun.jersey.spi.template.TemplateContext;
import com.sun.jersey.spi.template.TemplateContextException;
import com.sun.jersey.spi.template.ViewProcessor;
import java.util.List;
import java.util.Set;
import javax.ws.rs.core.UriInfo;
/**
*
* @author Paul.Sandoz@Sun.Com
*/
public final class TemplateFactory implements TemplateContext {
private final Set<ViewProcessor> viewProcessors;
public TemplateFactory(ProviderServices providerServices) {
viewProcessors = providerServices.getProvidersAndServices(
ViewProcessor.class);
Set<TemplateProcessor> templateProcessors = providerServices.getProvidersAndServices(
TemplateProcessor.class);
for (TemplateProcessor tp : templateProcessors) {
viewProcessors.add(new TemplateViewProcessor(tp));
}
}
/**
* Get the set of template processors.
*
* @return the set of template processors.
*/
private Set<ViewProcessor> getViewProcessors() {
return viewProcessors;
}
// TemplateContext
public ResolvedViewable resolveViewable(Viewable v) {
if (v.isTemplateNameAbsolute()) {
return resolveAbsoluteViewable(v);
} else if (v.getResolvingClass() != null) {
return resolveRelativeViewable(v, v.getResolvingClass());
} else {
if (v.getModel() == null)
throw new TemplateContextException("The model of the view MUST not be null");
return resolveRelativeViewable(v, v.getModel().getClass());
}
}
public ResolvedViewable resolveViewable(Viewable v, UriInfo ui) {
if (v.isTemplateNameAbsolute()) {
return resolveAbsoluteViewable(v);
} else if (v.getResolvingClass() != null) {
return resolveRelativeViewable(v, v.getResolvingClass());
} else {
final List<Object> mrs = ui.getMatchedResources();
if (mrs == null || mrs.size() == 0)
throw new TemplateContextException("There is no last matching resource available");
return resolveRelativeViewable(v, mrs.get(0).getClass());
}
}
public ResolvedViewable resolveViewable(Viewable v, Class<?> resolvingClass) {
if (v.isTemplateNameAbsolute()) {
return resolveAbsoluteViewable(v);
} else if (v.getResolvingClass() != null) {
return resolveRelativeViewable(v, v.getResolvingClass());
} else {
if (resolvingClass == null)
throw new TemplateContextException("Resolving class MUST not be null");
return resolveRelativeViewable(v, resolvingClass);
}
}
private ResolvedViewable resolveAbsoluteViewable(Viewable v) {
for (ViewProcessor vp : getViewProcessors()) {
Object resolvedTemplateObject = vp.resolve(v.getTemplateName());
if (resolvedTemplateObject != null) {
return new ResolvedViewable(vp, resolvedTemplateObject, v);
}
}
return null;
}
private ResolvedViewable resolveRelativeViewable(Viewable v, Class<?> resolvingClass) {
String path = v.getTemplateName();
if (path == null || path.length() == 0)
path = "index";
// Find in directories
for (Class c = resolvingClass; c != Object.class; c = c.getSuperclass()) {
String absolutePath = getAbsolutePath(c, path, '/');
for (ViewProcessor vp : getViewProcessors()) {
Object resolvedTemplateObject = vp.resolve(absolutePath);
if (resolvedTemplateObject != null) {
return new ResolvedViewable(vp, resolvedTemplateObject, v, c);
}
}
}
// Find in flat files
for (Class c = resolvingClass; c != Object.class; c = c.getSuperclass()) {
String absolutePath = getAbsolutePath(c, path, '.');
for (ViewProcessor vp : getViewProcessors()) {
Object resolvedTemplateObject = vp.resolve(absolutePath);
if (resolvedTemplateObject != null) {
return new ResolvedViewable(vp, resolvedTemplateObject, v, c);
}
}
}
return null;
}
private String getAbsolutePath(Class<?> resourceClass, String path, char delim) {
return '/' + resourceClass.getName().replace('.', '/').replace('$', delim) + delim + path;
}
}