Java tutorial
package com.thinkbiganalytics.discovery.model; /*- * #%L * thinkbig-schema-discovery-model2 * %% * Copyright (C) 2017 ThinkBig Analytics * %% * 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. * #L% */ import com.fasterxml.jackson.annotation.JsonIgnore; import com.fasterxml.jackson.databind.annotation.JsonDeserialize; import com.fasterxml.jackson.databind.annotation.JsonSerialize; import com.google.common.base.Function; import com.google.common.collect.Maps; import com.thinkbiganalytics.discovery.schema.Field; import com.thinkbiganalytics.discovery.schema.Schema; import com.thinkbiganalytics.metadata.MetadataField; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.UUID; import javax.annotation.Nullable; public class AbstractSchema implements Schema { private UUID uuid = UUID.randomUUID(); @MetadataField private String name; private String description; private String charset; private Map<String, String> properties = new HashMap<>(); @JsonDeserialize(contentAs = DefaultField.class) @JsonSerialize(contentAs = DefaultField.class) private List<Field> fields = new ArrayList<>(); private String schemaName; @Override public UUID getID() { return uuid; } @Override public String getName() { return name; } @Override public void setName(String name) { this.name = name; } @Override public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } @Override public String getCharset() { return charset; } public void setCharset(String charset) { this.charset = charset; } @Override public Map<String, String> getProperties() { return properties; } public void setProperties(Map<String, String> properties) { this.properties = properties; } @Override public List<Field> getFields() { return fields; } public void setFields(List<Field> fields) { this.fields = fields; } public void setUuid(UUID uuid) { this.uuid = uuid; } @JsonIgnore public Map<String, Field> getFieldsAsMap() { Map<String, Field> map = new HashMap<>(); if (fields != null) { map = Maps.uniqueIndex(fields, new Function<Field, String>() { @Nullable @Override public String apply(@Nullable Field field) { return field.getName(); } }); } return map; } }