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/* |
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* Copyright 2014, Armenak Grigoryan, and individual contributors as indicated |
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* by the @authors tag. See the copyright.txt in the distribution for a |
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* full listing of individual contributors. |
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* |
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* This is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU Lesser General Public License as |
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* published by the Free Software Foundation; either version 2.1 of |
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* the License, or (at your option) any later version. |
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* |
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* This software is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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*/ |
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package com.strider.datadefender.database.metadata; |
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import java.util.ArrayList; |
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import java.util.Comparator; |
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import java.util.List; |
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import java.util.stream.Collectors; |
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import org.apache.commons.lang3.StringUtils; |
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import lombok.AccessLevel; |
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import lombok.Data; |
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import lombok.Setter; |
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import lombok.extern.log4j.Log4j2; |
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/** |
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* Holds metadata for a table. |
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* |
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* @author Armenak Grigoryan |
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*/ |
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@Data |
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@Log4j2 |
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public class TableMetaData implements Comparable<TableMetaData> { |
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@Data |
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public class ColumnMetaData implements Comparable<ColumnMetaData> { |
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private final int columnIndex; |
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private final String columnName; |
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private final Class columnType; |
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private final int columnSize; |
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private final boolean isPrimaryKey; |
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private final boolean isForeignKey; |
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private final String foreignKeyReference; |
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@Override |
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public int compareTo(ColumnMetaData t) { |
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return Comparator |
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.comparing(ColumnMetaData::getColumnIndex) |
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.compare(this, t); |
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} |
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@Override |
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public String toString() { |
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return TableMetaData.this.toString() + "." + columnName; |
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} |
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public TableMetaData getTable() { |
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return TableMetaData.this; |
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} |
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} |
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private final String schemaName; |
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private final String tableName; |
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@Setter(AccessLevel.NONE) |
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private List<ColumnMetaData> columns = new ArrayList<>(); |
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/** |
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* Filters and returns a list of columns that are designated as primary |
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* keys. |
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* @return |
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*/ |
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public List<ColumnMetaData> getPrimaryKeys() { |
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return columns.stream().filter((c) -> c.isPrimaryKey).collect(Collectors.toList()); |
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} |
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/** |
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* Filters and returns a list of columns that are designated as foreign |
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* keys. |
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* @return |
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*/ |
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public List<ColumnMetaData> getForeignKeys() { |
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return columns.stream().filter((c) -> c.isForeignKey).collect(Collectors.toList()); |
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} |
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/** |
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* Adds a ColumnMetaData to the list of columns. |
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* |
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* @param columnIndex |
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* @param columnName |
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* @param columnType |
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* @param columnSize |
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* @param isPrimaryKey |
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* @param foreignKeyReference |
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*/ |
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1 |
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public void addColumn( |
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int columnIndex, |
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String columnName, |
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Class columnType, |
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int columnSize, |
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boolean isPrimaryKey, |
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String foreignKeyReference |
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) { |
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columns.add(new ColumnMetaData( |
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columnIndex, |
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columnName, |
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columnType, |
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columnSize, |
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isPrimaryKey, |
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StringUtils.isNotBlank(foreignKeyReference), |
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foreignKeyReference |
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)); |
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} |
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/** |
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* Returns the column at the specified '1'-based index. |
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* |
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* @param index |
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* @return |
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*/ |
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1 |
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public ColumnMetaData getColumn(int index) { |
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1 |
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return columns.get(index - 1); |
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} |
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/** |
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* Returns the column with the specified name. |
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* |
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* @param name |
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* @return |
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*/ |
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1 |
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public ColumnMetaData getColumn(String name) { |
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return columns |
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.stream() |
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.filter((c) -> StringUtils.equalsIgnoreCase(name, c.columnName)) |
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.findAny() |
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.orElse(null); |
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} |
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@Override |
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public int compareTo(TableMetaData t) { |
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return Comparator |
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.comparing(TableMetaData::getCanonicalTableName) |
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.compare(this, t); |
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} |
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/** |
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* If schemaName is set, returns {schemaName}.{tableName}, otherwise returns |
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* {tableName} alone. |
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* |
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* @return |
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*/ |
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public String getCanonicalTableName() { |
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if (StringUtils.isNotBlank(schemaName)) { |
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return schemaName + "." + tableName; |
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} |
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return tableName; |
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} |
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@Override |
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public String toString() { |
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return getCanonicalTableName(); |
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} |
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} |
armenak /
DataDefender
