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package cn.featherfly.hammer.tpl;

import java.util.HashMap;
import java.util.Map;

import cn.featherfly.hammer.HammerException;

/**
 * 
 * TemplateDirectives
 * 
 * 
 * @author zhongj
 */
public class TemplateDirectives {

    public static final String WHERE_DIRECTIVE_KEY = "where";
    public static final String AND_DIRECTIVE_KEY = "and";
    public static final String OR_DIRECTIVE_KEY = "or";
    public static final String PROPERTIES_DIRECTIVE_KEY = "prop";
    public static final String TEMPLATE_INCLUDE_DIRECTIVE_KEY = "tpl";
    public static final String WRAP_DIRECTIVE_KEY = "wrap";

    private static final String[] REQUIRED_KEYS = { WHERE_DIRECTIVE_KEY,
            AND_DIRECTIVE_KEY, OR_DIRECTIVE_KEY, PROPERTIES_DIRECTIVE_KEY,
            TEMPLATE_INCLUDE_DIRECTIVE_KEY, WRAP_DIRECTIVE_KEY };

    protected Map directiveMap = new HashMap<>();

    public void addDirective(String key, D directive) {
        directiveMap.put(key, directive);
    }

    public Map getDirectiveMap() {
        return directiveMap;
    }

    public Map getDirectiveMapAfterCheck() {
        for (String key : REQUIRED_KEYS) {
            if (!directiveMap.containsKey(key)) {
                throw new HammerException(
                        "directive with key " + key + " is null");
            }
        }
        return directiveMap;
    }

    public void addWhereDirective(D directive) {
        directiveMap.put(WHERE_DIRECTIVE_KEY, directive);
    }

    public void addAndDirective(D directive) {
        directiveMap.put(AND_DIRECTIVE_KEY, directive);
    }

    public void addOrDirective(D directive) {
        directiveMap.put(OR_DIRECTIVE_KEY, directive);
    }

    public void addPropertiesDirective(D directive) {
        directiveMap.put(PROPERTIES_DIRECTIVE_KEY, directive);
    }

    public void addTemplateIncludeDirective(D directive) {
        directiveMap.put(TEMPLATE_INCLUDE_DIRECTIVE_KEY, directive);
    }

    public void addWrapDirective(D directive) {
        directiveMap.put(WRAP_DIRECTIVE_KEY, directive);
    }

}