IM服务端

hefeixia

2021-02-18 5b8c95c760840f09910730943b21391e47187315

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package frame.variant;
 
import java.util.HashSet;
import java.util.List;
import java.util.Set;
 
import frame.util.Util;
 
public class VariantLink {
 
    public static void moveOnConsumer(IVariantsConsumer consumer, IVariantsProvider... providers) throws Exception {
        if (providers == null) {
            return;
        }
        
        List<String> nameList = consumer.getVariantNameList();
        boolean multi = providers.length > 1;
        boolean first = true;
        
        for (String name: nameList) {
            first = true;
            
            for (IVariantsProvider provider: providers) {
                if (provider.containsVariant(name)) {
                    if (first || (multi && consumer.isVariantNull(name))) {
                        Object value = provider.getVariantValue(name);
                        consumer.setVariant(name, value);
                    }
                }
                
                first = false;
            }
        }
    }
    
    public static boolean moveOnConsumer(IVariantsProvider provider, IVariantsConsumer consumer, Set<String> excludeNames) throws Exception {
        boolean excluded = false;
        
        Set<String> lowerSet = new HashSet<String>();
        for (String one: excludeNames) {
            lowerSet.add(one.toLowerCase());
        }
        
        List<String> nameList = consumer.getVariantNameList();
        if (Util.isEmptyStr(nameList)) {
            return excluded;
        }
        for (String name: nameList) {
            if (lowerSet.contains(name)) {
                excluded = true;
                continue;
            }
            
            if (provider.containsVariant(name)) {
                Object value = provider.getVariantValue(name);
                consumer.setVariant(name, value);
            }
        }        
        
        return excluded;
    }
    
 
    public static void moveOnProvider(IVariantsProvider provider, IVariantsConsumer consumer) throws Exception {
        List<String> nameList = provider.getVariantNameList();
        
        for (String name: nameList) {
            if (consumer.containsVariant(name)) {
                Object value = provider.getVariantValue(name);
                consumer.setVariant(name, value);
            }
        }
    }
    
    public static boolean moveOnProvider(IVariantsProvider provider, IVariantsConsumer consumer, Set<String> excludeNames) throws Exception {
        boolean excluded = false;
        
        Set<String> lowerSet = new HashSet<String>();
        for (String one: excludeNames) {
            lowerSet.add(one.toLowerCase());
        }
        
        List<String> nameList = provider.getVariantNameList();
        
        for (String name: nameList) {
            if (lowerSet.contains(name)) {
                excluded = true;
                continue;
            }
            
            if (consumer.containsVariant(name)) {
                Object value = provider.getVariantValue(name);
                consumer.setVariant(name, value);
            }
        }        
        
        return excluded;
    }
 
}