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implement MetaStringPreprocessor

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dfsek
2021-07-21 14:24:26 -07:00
parent 5a85099357
commit d054be5f25
2 changed files with 40 additions and 0 deletions
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2
common/implementation/build.gradle.kts
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@@ -21,6 +21,8 @@ dependencies {
"shadedApi"("commons-io:commons-io:2.6")
"shadedImplementation"("org.apache.commons:commons-text:1.9")
"compileOnly"("com.google.guava:guava:30.0-jre")

38
common/implementation/src/main/java/com/dfsek/terra/config/preprocessor/MetaStringPreprocessor.java Normal file
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@@ -0,0 +1,38 @@
package com.dfsek.terra.config.preprocessor;
import com.dfsek.tectonic.config.Configuration;
import com.dfsek.tectonic.exception.LoadException;
import com.dfsek.tectonic.loading.ConfigLoader;
import com.dfsek.tectonic.preprocessor.Result;
import com.dfsek.terra.api.config.meta.Meta;
import org.apache.commons.text.StringSubstitutor;
import org.apache.commons.text.lookup.StringLookup;
import org.jetbrains.annotations.NotNull;
import java.lang.reflect.AnnotatedType;
import java.util.Map;
public class MetaStringPreprocessor extends MetaPreprocessor<Meta> {
public MetaStringPreprocessor(Map<String, Configuration> configs) {
super(configs);
}
@SuppressWarnings("unchecked")
@Override
public @NotNull <T> Result<T> process(AnnotatedType t, T c, ConfigLoader loader, Meta annotation) {
if(String.class.equals(t.getType()) && c instanceof String) { // String is final so we use #equals
String candidate = (String) c;
StringSubstitutor substitutor = new StringSubstitutor(key -> {
Object meta = getMetaValue(key);
if(!(meta instanceof String)) {
throw new LoadException("MetaString template injection candidate must be string, is type " + meta.getClass().getCanonicalName());
}
return (String) meta;
});
return (Result<T>) Result.overwrite(substitutor.replace(candidate));
}
return Result.noOp();
}
}