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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.query.profile;
import com.yahoo.processing.request.CompoundName;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/**
* @author <a href="mailto:bratseth@yahoo-inc.com">Jon Bratseth</a>
*/
final class AllValuesQueryProfileVisitor extends PrefixQueryProfileVisitor {
private Map<String,Object> values=new HashMap<>();
/* Lists all values starting at prefix */
public AllValuesQueryProfileVisitor(CompoundName prefix) {
super(prefix);
}
public @Override void onValue(String localName, Object value, DimensionBinding binding, QueryProfile owner) {
putValue(localName, value, values);
}
public @Override void onQueryProfileInsidePrefix(QueryProfile profile, DimensionBinding binding, QueryProfile owner) {
putValue("", profile.getValue(), values);
}
private final void putValue(String key, Object value, Map<String, Object> values) {
if (value == null) return;
CompoundName fullName = currentPrefix.append(key);
if (fullName.isEmpty()) return; // Avoid putting a non-leaf (subtree) root in the list
if (values.containsKey(fullName.toString())) return; // The first value encountered has priority
values.put(fullName.toString(), value);
}
/** Returns the values resulting from this visiting */
public Map<String, Object> getResult() { return values; }
/** Returns false - we are not done until we have seen all */
public boolean isDone() { return false; }
}
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