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Add QualifiedObjectName to TypeSignature
The TypeSignature base can either be a unqualified name, which means it's a standard type, or it can be a QualifiedObjectName, which means it's a schema type.
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presto-common/src/main/java/com/facebook/presto/common/type/TypeSignatureBase.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /* | ||
| * 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.facebook.presto.common.type; | ||
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| import com.facebook.presto.common.QualifiedObjectName; | ||
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| import java.util.Objects; | ||
| import java.util.Optional; | ||
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| import static java.lang.String.format; | ||
| import static java.util.Locale.ENGLISH; | ||
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| public class TypeSignatureBase | ||
| { | ||
| private final Optional<String> standardTypeBase; | ||
| private final Optional<QualifiedObjectName> typeBase; | ||
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| public static TypeSignatureBase of(String name) | ||
| { | ||
| if (name.chars().noneMatch(c -> c == '.')) { | ||
| return new TypeSignatureBase(name); | ||
| } | ||
| return new TypeSignatureBase(QualifiedObjectName.valueOf(name.toLowerCase(ENGLISH))); | ||
| } | ||
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| public static TypeSignatureBase of(QualifiedObjectName name) | ||
| { | ||
| return new TypeSignatureBase(name); | ||
| } | ||
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| private TypeSignatureBase(String standardTypeBase) | ||
| { | ||
| checkArgument(standardTypeBase != null, "standardTypeBase is null"); | ||
| checkArgument(!standardTypeBase.isEmpty(), "standardTypeBase is empty"); | ||
| checkArgument(standardTypeBase.chars().noneMatch(c -> c == '.'), "Standard type %s should not have '.' in it", standardTypeBase); | ||
| checkArgument(validateName(standardTypeBase), "Bad characters in base type: %s", standardTypeBase); | ||
| this.standardTypeBase = Optional.of(standardTypeBase); | ||
| this.typeBase = Optional.empty(); | ||
| } | ||
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| private TypeSignatureBase(QualifiedObjectName typeBase) | ||
| { | ||
| checkArgument(typeBase != null, "typeBase is null"); | ||
| checkArgument(validateName(typeBase.getObjectName()), "Bad characters in base type: %s", typeBase); | ||
| this.standardTypeBase = Optional.empty(); | ||
| this.typeBase = Optional.of(typeBase); | ||
| } | ||
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| public boolean isStandardType() | ||
| { | ||
| return standardTypeBase.isPresent(); | ||
| } | ||
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| public QualifiedObjectName getQualifiedObjectName() | ||
| { | ||
| checkArgument(typeBase.isPresent(), "TypeSignatureBase %s is not a QualifiedObjectName", toString()); | ||
| return typeBase.get(); | ||
| } | ||
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| private static boolean validateName(String name) | ||
| { | ||
| return name.chars().noneMatch(c -> c == '<' || c == '>' || c == ','); | ||
| } | ||
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| private static void checkArgument(boolean argument, String format, Object... args) | ||
| { | ||
| if (!argument) { | ||
| throw new IllegalArgumentException(format(format, args)); | ||
| } | ||
| } | ||
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| @Override | ||
| public boolean equals(Object obj) | ||
| { | ||
| if (this == obj) { | ||
| return true; | ||
| } | ||
| if (obj == null || getClass() != obj.getClass()) { | ||
| return false; | ||
| } | ||
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| TypeSignatureBase other = (TypeSignatureBase) obj; | ||
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| return Objects.equals(standardTypeBase.map(s -> s.toLowerCase(ENGLISH)), other.standardTypeBase.map(s -> s.toLowerCase(ENGLISH))) && | ||
| Objects.equals(typeBase, other.typeBase); | ||
| } | ||
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| @Override | ||
| public int hashCode() | ||
| { | ||
| return Objects.hash(standardTypeBase.map(s -> s.toLowerCase(ENGLISH)), typeBase); | ||
| } | ||
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| @Override | ||
| public String toString() | ||
| { | ||
| return standardTypeBase.orElseGet(() -> typeBase.get().toString()); | ||
| } | ||
| } |