/** * Copyright 2011-2017 Asakusa Framework Team. * * 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.asakusafw.directio.hive.info; import java.text.MessageFormat; import java.util.Objects; import com.fasterxml.jackson.annotation.JsonCreator; import com.fasterxml.jackson.annotation.JsonProperty; /** * Represents a Hive map type. * Each type category must be {@link com.asakusafw.directio.hive.info.FieldType.Category#MAP}. * @since 0.8.1 */ public class MapType implements FieldType { private static final String K_KEY = "key"; private static final String K_VALUE = "value"; private final FieldType keyType; private final FieldType valueType; /** * Creates a new instance. * @param keyType the key type * @param valueType the value type */ public MapType(FieldType keyType, FieldType valueType) { this.keyType = keyType; this.valueType = valueType; } @JsonCreator MapType( @JsonProperty(value = "name", required = true) TypeName name, @JsonProperty(value = K_KEY, required = true) FieldType keyType, @JsonProperty(value = K_VALUE, required = true) FieldType valueType) { this(keyType, valueType); if (name != TypeName.MAP) { throw new IllegalArgumentException(MessageFormat.format( "invalid map type name: {0}", name)); } } @JsonProperty("name") @Override public TypeName getTypeName() { return TypeName.MAP; } @Override public String getQualifiedName() { return String.format( "%s<%s, %s>", getTypeName().name(), getKeyType().getQualifiedName(), getValueType().getQualifiedName()); } /** * Returns the key type. * @return the key type */ @JsonProperty(K_KEY) public FieldType getKeyType() { return keyType; } /** * Returns the value type. * @return the value type */ @JsonProperty(K_VALUE) public FieldType getValueType() { return valueType; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + Objects.hashCode(keyType); result = prime * result + Objects.hashCode(valueType); return result; } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null) { return false; } if (getClass() != obj.getClass()) { return false; } MapType other = (MapType) obj; if (!Objects.equals(keyType, other.keyType)) { return false; } if (!Objects.equals(valueType, other.valueType)) { return false; } return true; } @Override public String toString() { return getQualifiedName(); } }