/*
 * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate licenses
 * this file to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.  You may
 * obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */
package io.crate.operation.predicate;

import io.crate.metadata.FunctionResolver;
import io.crate.metadata.FunctionIdent;
import io.crate.metadata.FunctionImplementation;
import org.elasticsearch.common.inject.AbstractModule;
import org.elasticsearch.common.inject.multibindings.MapBinder;

public class PredicateModule extends AbstractModule {

    private MapBinder<FunctionIdent, FunctionImplementation> functionBinder;
    private MapBinder<String, FunctionResolver> resolverBinder;

    public void register(FunctionImplementation impl) {
        functionBinder.addBinding(impl.info().ident()).toInstance(impl);
    }

    public void register(String name, FunctionResolver functionResolver) {
        resolverBinder.addBinding(name).toInstance(functionResolver);
    }

    @Override
    protected void configure() {
        functionBinder = MapBinder.newMapBinder(binder(), FunctionIdent.class, FunctionImplementation.class);
        resolverBinder = MapBinder.newMapBinder(binder(), String.class, FunctionResolver.class);
        IsNullPredicate.register(this);
        NotPredicate.register(this);
        MatchPredicate.register(this);
    }
}