| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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. |
| */ |
| |
| package org.apache.accumulo.core.client.sample; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static java.util.Objects.requireNonNull; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| /** |
| * This class encapsulates configuration and options needed to setup and use sampling. |
| * |
| * @since 1.8.0 |
| */ |
| public class SamplerConfiguration { |
| |
| private String className; |
| private Map<String,String> options = new HashMap<>(); |
| |
| public SamplerConfiguration(Class<? extends Sampler> samplerClass) { |
| this(samplerClass.getName()); |
| } |
| |
| public SamplerConfiguration(String samplerClassName) { |
| requireNonNull(samplerClassName); |
| this.className = samplerClassName; |
| } |
| |
| public SamplerConfiguration setOptions(Map<String,String> options) { |
| requireNonNull(options); |
| this.options = new HashMap<>(options.size()); |
| |
| for (Entry<String,String> entry : options.entrySet()) { |
| addOption(entry.getKey(), entry.getValue()); |
| } |
| |
| return this; |
| } |
| |
| public SamplerConfiguration addOption(String option, String value) { |
| checkArgument(option != null, "option is null"); |
| checkArgument(value != null, "value is null"); |
| this.options.put(option, value); |
| return this; |
| } |
| |
| public Map<String,String> getOptions() { |
| return Collections.unmodifiableMap(options); |
| } |
| |
| public String getSamplerClassName() { |
| return className; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o instanceof SamplerConfiguration) { |
| SamplerConfiguration osc = (SamplerConfiguration) o; |
| |
| return className.equals(osc.className) && options.equals(osc.options); |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return className.hashCode() + 31 * options.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return className + " " + options; |
| } |
| } |