Minecon724/blog-software-java
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refactor: extract template functions into TemplateExtension

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- Introduced `TemplateExtension` to encapsulate template functions.
- Moved `static` and `asset` functions from `BlogBuilder` to `TemplateExtension`.
- Adjusted package structure for `TemplateRenderer` and new `TemplateExtension`.

Signed-off-by: Minecon724 <git@m724.eu>
This commit is contained in:
Minecon724 2025-02-08 15:54:22 +01:00
parent b339d6d239
commit 8e4fae069d
Signed by: Minecon724
GPG key ID: 3CCC4D267742C8E8
3 changed files with 42 additions and 30 deletions
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1
src/main/java/eu/m724/blog/BlogBuilder.java
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@ -3,6 +3,7 @@ package eu.m724.blog;
import eu.m724.blog.data.Feed;
import eu.m724.blog.data.Post;
import eu.m724.blog.data.Site;
import eu.m724.blog.template.TemplateRenderer;
import org.apache.commons.io.file.PathUtils;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.lib.RepositoryBuilder;

39
src/main/java/eu/m724/blog/template/TemplateExtension.java Normal file
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@ -0,0 +1,39 @@
package eu.m724.blog.template;
import io.pebbletemplates.pebble.extension.AbstractExtension;
import io.pebbletemplates.pebble.extension.Function;
import io.pebbletemplates.pebble.template.EvaluationContext;
import io.pebbletemplates.pebble.template.PebbleTemplate;
import java.util.List;
import java.util.Map;
public class TemplateExtension extends AbstractExtension {
@Override
public Map<String, Function> getFunctions() {
return Map.of(
"static", new Function() {
@Override
public List<String> getArgumentNames() {
return List.of("path");
}
@Override
public Object execute(Map<String, Object> args, PebbleTemplate self, EvaluationContext context, int lineNumber) {
return "/static/" + args.get("path"); // TODO for more advanced stuff
}
},
"asset", new Function() {
@Override
public List<String> getArgumentNames() {
return List.of("path");
}
@Override
public Object execute(Map<String, Object> args, PebbleTemplate self, EvaluationContext context, int lineNumber) {
return "/assets/" + args.get("path"); // TODO for more advanced stuff
}
}
);
}
}

32
src/main/java/eu/m724/blog/TemplateRenderer.java → src/main/java/eu/m724/blog/template/TemplateRenderer.java
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@ -1,4 +1,4 @@
package eu.m724.blog;
package eu.m724.blog.template;
import eu.m724.blog.data.Post;
import eu.m724.blog.data.Site;
@ -35,35 +35,7 @@ public class TemplateRenderer {
var pebbleEngine = new PebbleEngine.Builder()
.loader(loader)
.extension(new AbstractExtension() {
@Override
public Map<String, Function> getFunctions() {
return Map.of(
"static", new Function() {
@Override
public List<String> getArgumentNames() {
return List.of("path");
}
@Override
public Object execute(Map<String, Object> args, PebbleTemplate self, EvaluationContext context, int lineNumber) {
return "/static/" + args.get("path"); // TODO for more advanced stuff
}
},
"asset", new Function() {
@Override
public List<String> getArgumentNames() {
return List.of("path");
}
@Override
public Object execute(Map<String, Object> args, PebbleTemplate self, EvaluationContext context, int lineNumber) {
return "/assets/" + args.get("path"); // TODO for more advanced stuff
}
}
);
}
})
.extension(new TemplateExtension())
.build();
this.indexTemplate = pebbleEngine.getTemplate("index_template");