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Merge pull request #4895 from greenplum-db/external-table-ddl-creatio…
…n-162776271 GP: Add DDL generation for Greenplum's concept of external tables
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...eaver.ext.greenplum/src/org/jkiss/dbeaver/ext/greenplum/model/GreenplumExternalTable.java
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|---|---|---|
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| /* | ||
| * DBeaver - Universal Database Manager | ||
| * Copyright (C) 2010-2017 Serge Rider (serge@jkiss.org) | ||
| * Copyright (C) 2019 Dmitriy Dubson (ddubson@pivotal.io) | ||
| * Copyright (C) 2019 Gavin Shaw (gshaw@pivotal.io) | ||
| * Copyright (C) 2019 Zach Marcin (zmarcin@pivotal.io) | ||
| * Copyright (C) 2019 Nikhil Pawar (npawar@pivotal.io) | ||
| * | ||
| * 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 org.jkiss.dbeaver.ext.greenplum.model; | ||
|
|
||
| import org.jkiss.dbeaver.DBException; | ||
| import org.jkiss.dbeaver.ext.postgresql.model.PostgreSchema; | ||
| import org.jkiss.dbeaver.ext.postgresql.model.PostgreTableColumn; | ||
| import org.jkiss.dbeaver.ext.postgresql.model.PostgreTableRegular; | ||
| import org.jkiss.dbeaver.model.impl.jdbc.JDBCUtils; | ||
| import org.jkiss.dbeaver.model.runtime.DBRProgressMonitor; | ||
|
|
||
| import java.sql.ResultSet; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| public class GreenplumExternalTable extends PostgreTableRegular { | ||
| public enum FormatType { | ||
| c("CSV"), | ||
| t("TEXT"); | ||
|
|
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| private String formatType; | ||
|
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| FormatType(String formatTypeString) { | ||
| this.formatType = formatTypeString; | ||
| } | ||
|
|
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| public String getValue() { | ||
| return formatType; | ||
| } | ||
| } | ||
|
|
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| public enum RejectLimitType { | ||
| r("ROWS"); | ||
|
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| private String rejectLimitType; | ||
|
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| RejectLimitType(String rejectLimitTypeString) { | ||
| this.rejectLimitType = rejectLimitTypeString; | ||
| } | ||
|
|
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| public String getValue() { | ||
| return rejectLimitType; | ||
| } | ||
| } | ||
|
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| private final List<String> uriLocations; | ||
| private final String execLocation; | ||
| private final FormatType formatType; | ||
| private final String formatOptions; | ||
| private final String encoding; | ||
| private final RejectLimitType rejectLimitType; | ||
| private final int rejectLimit; | ||
|
|
||
| public GreenplumExternalTable(PostgreSchema catalog, ResultSet dbResult) { | ||
| super(catalog, dbResult); | ||
| this.uriLocations = Arrays.asList(JDBCUtils.safeGetString(dbResult, "urilocation") | ||
| .trim().split(",")); | ||
| this.execLocation = JDBCUtils.safeGetString(dbResult, "execlocation"); | ||
| this.formatType = FormatType.valueOf(JDBCUtils.safeGetString(dbResult, "fmttype")); | ||
| this.formatOptions = JDBCUtils.safeGetString(dbResult, "fmtopts"); | ||
| this.encoding = JDBCUtils.safeGetString(dbResult, "encoding"); | ||
|
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| this.rejectLimit = JDBCUtils.safeGetInt(dbResult, "rejectlimit"); | ||
| String rejectlimittype = JDBCUtils.safeGetString(dbResult, "rejectlimittype"); | ||
| if (rejectlimittype != null && rejectlimittype.length() > 0) { | ||
| this.rejectLimitType = RejectLimitType.valueOf(rejectlimittype); | ||
| } else { | ||
| this.rejectLimitType = null; | ||
| } | ||
|
|
||
| } | ||
|
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| public List<String> getUriLocations() { | ||
| return uriLocations; | ||
| } | ||
|
|
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| public String getExecLocation() { | ||
| return execLocation; | ||
| } | ||
|
|
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| public FormatType getFormatType() { | ||
| return formatType; | ||
| } | ||
|
|
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| public String getFormatOptions() { | ||
| return formatOptions; | ||
| } | ||
|
|
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| public String getEncoding() { | ||
| return encoding; | ||
| } | ||
|
|
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| public RejectLimitType getRejectLimitType() { | ||
| return rejectLimitType; | ||
| } | ||
|
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| public int getRejectLimit() { | ||
| return rejectLimit; | ||
| } | ||
|
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| public String generateDDL(DBRProgressMonitor monitor) throws DBException { | ||
| StringBuilder ddlBuilder = new StringBuilder("CREATE EXTERNAL TABLE " + this.getDatabase().getName() | ||
| + "." + this.getSchema().getName() + "." + this.getName() + " (\n"); | ||
|
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| List<PostgreTableColumn> tableColumns = this.getAttributes(monitor) | ||
| .stream() | ||
| .filter(field -> field.getOrdinalPosition() >= 0) | ||
| .collect(Collectors.toList()); | ||
|
|
||
| if (tableColumns.size() == 1) { | ||
| PostgreTableColumn column = tableColumns.get(0); | ||
| ddlBuilder.append("\t" + column.getName() + " " + column.getTypeName() + "\n)\n"); | ||
| } else { | ||
| ddlBuilder.append(tableColumns | ||
| .stream() | ||
| .map(field -> "\t" + field.getName() + " " + field.getTypeName()) | ||
| .collect(Collectors.joining(",\n"))); | ||
| ddlBuilder.append("\n)\n"); | ||
| } | ||
|
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| if (this.getUriLocations() != null && !this.getUriLocations().isEmpty()) { | ||
| ddlBuilder.append("LOCATION (\n"); | ||
|
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| ddlBuilder.append(this.getUriLocations() | ||
| .stream() | ||
| .map(location -> "\t'" + location + "'") | ||
| .collect(Collectors.joining(",\n"))); | ||
|
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| ddlBuilder.append("\n) " + determineExecutionLocation() + "\n"); | ||
| } | ||
|
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| ddlBuilder.append("FORMAT '" + this.getFormatType().getValue() + "' ( " + this.getFormatOptions() + " )"); | ||
|
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| if (this.getEncoding() != null && this.getEncoding().length() > 0) { | ||
| ddlBuilder.append("\nENCODING '" + this.getEncoding() + "'"); | ||
| } | ||
|
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| if (this.getRejectLimit() > 0 && this.getRejectLimitType() != null) { | ||
| ddlBuilder.append("\nSEGMENT REJECT LIMIT " + this.getRejectLimit() + " " + this.getRejectLimitType().getValue()); | ||
| } | ||
|
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| return ddlBuilder.toString(); | ||
| } | ||
|
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| private String determineExecutionLocation() { | ||
| if (this.getExecLocation() != null && this.getExecLocation().equalsIgnoreCase("MASTER_ONLY")) { | ||
| return "ON MASTER"; | ||
| } | ||
|
|
||
| return "ON ALL"; | ||
| } | ||
| } |
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20
...dbeaver.ext.greenplum/src/org/jkiss/dbeaver/ext/greenplum/model/GreenplumSchemaCache.java
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20
...r.ext.greenplum/src/org/jkiss/dbeaver/ext/greenplum/model/GreenplumWithClauseBuilder.java
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