Java tutorial
/** * Copyright 2016 Jeremy Custenborder (jcustenborder@gmail.com) * * Licensed 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. */ package com.github.jcustenborder.kafka.connect.utils.config.recommenders; import com.google.common.collect.ImmutableList; import org.apache.kafka.common.config.ConfigDef; import java.util.List; import java.util.Map; class CharsetRecommender implements ConfigDef.Recommender { private final List<Object> charsets; private final VisibleCallback visible; CharsetRecommender(Iterable<String> charsets, VisibleCallback visible) { this.visible = visible; this.charsets = ImmutableList.copyOf(charsets); } @Override public List<Object> validValues(String s, Map<String, Object> map) { return this.charsets; } @Override public boolean visible(String s, Map<String, Object> map) { return this.visible.visible(s, map); } }