org.graylog.plugins.pipelineprocessor.parser.FunctionRegistry Maven / Gradle / Ivy
/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see .
*/
package org.graylog.plugins.pipelineprocessor.parser;
import org.graylog.plugins.pipelineprocessor.ast.functions.Function;
import javax.inject.Inject;
import java.util.Collection;
import java.util.Map;
import java.util.stream.Collectors;
public class FunctionRegistry {
private final Map> functions;
@Inject
public FunctionRegistry(Map> functions) {
this.functions = functions;
}
public Function resolve(String name) {
return functions.get(name);
}
public Function resolveOrError(String name) {
final Function function = resolve(name);
if (function == null) {
return Function.ERROR_FUNCTION;
}
return function;
}
public Collection> all() {
return functions.values().stream().collect(Collectors.toList());
}
}