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Tomcat85 Slf4j Logback Integration

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package org.apache.juli.logging.ch.qos.logback.classic.model.processor;

import org.apache.juli.logging.ch.qos.logback.classic.model.ContextNameModel;
import org.apache.juli.logging.ch.qos.logback.core.Context;
import org.apache.juli.logging.ch.qos.logback.core.model.Model;
import org.apache.juli.logging.ch.qos.logback.core.model.processor.ModelHandlerBase;
import org.apache.juli.logging.ch.qos.logback.core.model.processor.ModelHandlerException;
import org.apache.juli.logging.ch.qos.logback.core.model.processor.ModelInterpretationContext;

public class ContextNameModelHandler extends ModelHandlerBase {

    public ContextNameModelHandler(Context context) {
        super(context);
    }

    static public ModelHandlerBase makeInstance(Context context, ModelInterpretationContext ic) {
        return new ContextNameModelHandler(context);
    }

    @Override
    protected Class getSupportedModelClass() {
        return ContextNameModel.class;
    }

    @Override
    public void handle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
        ContextNameModel contextNameModel = (ContextNameModel) model;

        String finalBody = mic.subst(contextNameModel.getBodyText());
        addInfo("Setting logger context name as [" + finalBody + "]");
        try {
            context.setName(finalBody);
        } catch (IllegalStateException e) {
            addError("Failed to rename context [" + context.getName() + "] as [" + finalBody + "]", e);
        }

    }

}