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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.query.profile.types;
import com.yahoo.search.query.profile.QueryProfile;
import com.yahoo.search.query.profile.QueryProfileRegistry;
import com.yahoo.search.query.profile.compiled.CompiledQueryProfile;
/**
* Represents a query profile field type which is a reference to a query profile.
* The reference may optionally specify the type of the referred query profile.
*
* @author bratseth
*/
public class QueryProfileFieldType extends FieldType {
private final QueryProfileType type;
public static QueryProfileFieldType fromString(String queryProfileName, QueryProfileTypeRegistry registry) {
if (queryProfileName==null || queryProfileName.equals(""))
return new QueryProfileFieldType(null);
if (registry==null)
throw new IllegalArgumentException("Can not resolve query profile type '" + queryProfileName +
"' because no registry is provided");
QueryProfileType queryProfileType=registry.getComponent(queryProfileName);
if (queryProfileType==null)
throw new IllegalArgumentException("Could not resolve query profile type '" + queryProfileName + "'");
return new QueryProfileFieldType(registry.getComponent(queryProfileName));
}
public QueryProfileFieldType() { this(null); }
public QueryProfileFieldType(QueryProfileType type) {
this.type = type;
}
/** Returns the query profile type of this, or null if any type works */
public QueryProfileType getQueryProfileType() { return type; }
@Override
public Class<?> getValueClass() { return QueryProfile.class; }
@Override
public String stringValue() {
return "query-profile" + (type!=null ? ":" + type.getId().getName() : "");
}
@Override
public String toString() {
return "field type " + stringValue();
}
@Override
public String toInstanceDescription() {
return "reference to a query profile" + (type!=null ? " of type '" + type.getId().getName() + "'" : "");
}
@Override
public CompiledQueryProfile convertFrom(Object object, ConversionContext context) {
String profileId = object.toString();
if (profileId.startsWith("ref:"))
profileId = profileId.substring("ref:".length());
CompiledQueryProfile profile = context.getRegistry().getComponent(profileId);
if (profile == null) return null;
if (type != null && ! type.equals(profile.getType())) return null;
return profile;
}
@Override
public QueryProfile convertFrom(Object object, QueryProfileRegistry registry) {
QueryProfile profile;
if (object instanceof String)
profile = registry.getComponent((String)object);
else if (object instanceof QueryProfile)
profile = (QueryProfile)object;
else
return null;
// Verify its type as well
if (type!=null && type!=profile.getType()) return null;
return profile;
}
@Override
public int hashCode() {
if (type == null) return 17;
return type.hashCode();
}
@Override
public boolean equals(Object o) {
if (o == this) return true;
if ( ! (o instanceof QueryProfileFieldType)) return false;
QueryProfileFieldType other = (QueryProfileFieldType)o;
return equals(this.type.getId(), other.type.getId());
}
private boolean equals(Object o1, Object o2) {
if (o1 == null) return o2 == null;
return o1.equals(o2);
}
}
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