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PostgreSQL Connector implementation (#53)
* PostgreSQL Connector implementation * Removing the old Postgres connector
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...at-connector-jdbc/src/main/java/com/netflix/metacat/connector/jdbc/JdbcTypeConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| /* | ||
| * | ||
| * Copyright 2017 Netflix, Inc. | ||
| * | ||
| * 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:https://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.netflix.metacat.connector.jdbc; | ||
|
|
||
| import com.netflix.metacat.common.server.connectors.ConnectorTypeConverter; | ||
| import com.netflix.metacat.common.type.BaseType; | ||
| import com.netflix.metacat.common.type.CharType; | ||
| import com.netflix.metacat.common.type.DecimalType; | ||
| import com.netflix.metacat.common.type.Type; | ||
| import com.netflix.metacat.common.type.VarbinaryType; | ||
| import com.netflix.metacat.common.type.VarcharType; | ||
| import lombok.extern.slf4j.Slf4j; | ||
|
|
||
| import javax.annotation.Nonnull; | ||
| import java.util.Arrays; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
|
|
||
| /** | ||
| * Type converter utilities for JDBC connectors. | ||
| * | ||
| * @author tgianos | ||
| * @since 0.1.52 | ||
| */ | ||
| @Slf4j | ||
| public abstract class JdbcTypeConverter implements ConnectorTypeConverter { | ||
|
|
||
| private static final Pattern TYPE_PATTERN = Pattern.compile( | ||
| "^\\s*?" | ||
| + "(\\w+(?:\\s(?:precision|varying))?)" | ||
| + "\\s*?(\\[\\](?:\\[\\])?)?" | ||
| + "\\s*?" | ||
| + "(?:\\(\\s*?(\\d+)(?:\\s*?,\\s*?(\\d+))?\\s*?\\))?" | ||
| + "(?:\\s*?(\\w+(?:\\s\\w+)*))?$" | ||
| ); | ||
|
|
||
| protected String[] splitType(final String type) { | ||
| final Matcher matcher = TYPE_PATTERN.matcher(type); | ||
| final int numGroups = matcher.groupCount(); | ||
| if (matcher.find()) { | ||
| final String[] split = new String[numGroups]; | ||
| for (int i = 0; i < numGroups; i++) { | ||
| split[i] = matcher.group(i + 1); | ||
| } | ||
| return split; | ||
| } else { | ||
| throw new IllegalArgumentException("Unable to parse " + type); | ||
| } | ||
| } | ||
|
|
||
| protected Type toMetacatBitType(@Nonnull final String[] bit) { | ||
| // No size parameter | ||
| if (bit[2] == null || Integer.parseInt(bit[2]) == 1) { | ||
| return BaseType.BOOLEAN; | ||
| } else { | ||
| final int bytes = (int) Math.ceil(Double.parseDouble(bit[2]) / 8.0); | ||
| return VarbinaryType.createVarbinaryType(bytes); | ||
| } | ||
|
|
||
|
|
||
| } | ||
|
|
||
| protected DecimalType toMetacatDecimalType(@Nonnull final String[] splitType) { | ||
| if (splitType[2] == null && splitType[3] == null) { | ||
| return DecimalType.createDecimalType(); | ||
| } else if (splitType[2] != null) { | ||
| final int precision = Integer.parseInt(splitType[2]); | ||
| if (splitType[3] == null) { | ||
| return DecimalType.createDecimalType(precision); | ||
| } else { | ||
| return DecimalType.createDecimalType(precision, Integer.parseInt(splitType[3])); | ||
| } | ||
| } else { | ||
| throw new IllegalArgumentException("Illegal definition of a decimal type: " + Arrays.toString(splitType)); | ||
| } | ||
| } | ||
|
|
||
| protected Type toMetacatCharType(@Nonnull final String[] splitType) { | ||
| if (splitType[2] == null) { | ||
| throw new IllegalArgumentException("Must have size for char type"); | ||
| } | ||
|
|
||
| final int size = Integer.parseInt(splitType[2]); | ||
| // Check if we're dealing with binary or not | ||
| if (splitType[4] != null) { | ||
| if (!splitType[4].equals("binary")) { | ||
| throw new IllegalArgumentException( | ||
| "Unrecognized extra field in char type: " + splitType[4] + ". Expected 'binary'." | ||
| ); | ||
| } | ||
| return VarbinaryType.createVarbinaryType(size); | ||
| } else { | ||
| return CharType.createCharType(size); | ||
| } | ||
| } | ||
|
|
||
| protected Type toMetacatVarcharType(@Nonnull final String[] splitType) { | ||
| if (splitType[2] == null) { | ||
| throw new IllegalArgumentException("Must have size for varchar type"); | ||
| } | ||
|
|
||
| final int size = Integer.parseInt(splitType[2]); | ||
| // Check if we're dealing with binary or not | ||
| if (splitType[4] != null) { | ||
| if (!splitType[4].equals("binary")) { | ||
| throw new IllegalArgumentException( | ||
| "Unrecognized extra field in varchar type: " + splitType[4] + ". Expected 'binary'." | ||
| ); | ||
| } | ||
| return VarbinaryType.createVarbinaryType(size); | ||
| } else { | ||
| return VarcharType.createVarcharType(size); | ||
| } | ||
| } | ||
|
|
||
| protected VarbinaryType toMetacatVarbinaryType(@Nonnull final String[] splitType) { | ||
| if (!splitType[0].equals("varbinary") && !splitType[0].equals("binary")) { | ||
| // Blob | ||
| return VarbinaryType.createVarbinaryType(Integer.MAX_VALUE); | ||
| } | ||
| if (splitType[2] == null) { | ||
| throw new IllegalArgumentException("Must have size for varbinary type"); | ||
| } | ||
|
|
||
| return VarbinaryType.createVarbinaryType(Integer.parseInt(splitType[2])); | ||
| } | ||
|
|
||
| protected Type toMetacatTimeType(@Nonnull final String[] splitType) { | ||
| if (splitType[4] != null && splitType[4].equals("with time zone")) { | ||
| return BaseType.TIME_WITH_TIME_ZONE; | ||
| } else { | ||
| return BaseType.TIME; | ||
| } | ||
| } | ||
|
|
||
| protected Type toMetacatTimestampType(@Nonnull final String[] splitType) { | ||
| if (splitType[4] != null && splitType[4].equals("with time zone")) { | ||
| return BaseType.TIMESTAMP_WITH_TIME_ZONE; | ||
| } else { | ||
| return BaseType.TIMESTAMP; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| dependencies { | ||
| compile project(":metacat-connector-jdbc") | ||
| compile ("mysql:mysql-connector-java:${mysql_connector_version}") | ||
| runtime ("mysql:mysql-connector-java:${mysql_connector_version}") | ||
| } |
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