eu.rssw.antlr.database.objects.DatabaseDescription Maven / Gradle / Ivy
/*
* OpenEdge plugin for SonarQube
* Copyright (c) 2015-2024 Riverside Software
* contact AT riverside DASH software DOT fr
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package eu.rssw.antlr.database.objects;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.nio.charset.StandardCharsets;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.google.common.base.Splitter;
public class DatabaseDescription {
private String dbName;
private Map sequences = new HashMap<>();
private Map tables = new HashMap<>();
public DatabaseDescription() {
this.dbName = "empty";
}
public DatabaseDescription(String dbName) {
this.dbName = dbName;
}
public String getDbName() {
return dbName;
}
public Collection getSequences() {
return sequences.values();
}
public Sequence getSequence(String name) {
return sequences.get(name);
}
public Collection getTables() {
return tables.values();
}
public Table getTable(String name) {
return tables.get(name);
}
public void addTable(Table tbl) {
tables.put(tbl.getName(), tbl);
}
public void addSequence(Sequence seq) {
sequences.put(seq.getName(), seq);
}
public void serialize(OutputStream out) throws IOException {
try (OutputStreamWriter osw = new OutputStreamWriter(out, StandardCharsets.UTF_8);
BufferedWriter writer = new BufferedWriter(osw)) {
for (Sequence s : sequences.values()) {
writer.write("S" + s.getName());
writer.newLine();
}
for (Table t : tables.values()) {
writer.write("T" + t.getName());
writer.newLine();
for (Field f : t.getFields()) {
writer.write("F" + f.getName() + ":" + f.getDataType() + ":" + f.getExtent());
writer.newLine();
}
for (Index i : t.getIndexes()) {
writer.write("I" + i.getName() + ":" + (i.isPrimary() ? "P" : "") + (i.isUnique() ? "U" : ""));
for (IndexField ifld : i.getFields()) {
writer.write(":" + (ifld.isAscending() ? 'A' : 'D') + ifld.getField().getName());
}
writer.newLine();
}
}
}
}
public static DatabaseDescription deserialize(InputStream in, String name) throws IOException {
DatabaseDescription db = new DatabaseDescription(name);
try (InputStreamReader isr = new InputStreamReader(in); BufferedReader reader = new BufferedReader(isr)) {
String line = null;
Table currTbl = null;
while ((line = reader.readLine()) != null) {
if (line.startsWith("S")) {
db.addSequence(new Sequence(line.substring(1)));
} else if (line.startsWith("T")) {
currTbl = new Table(line.substring(1));
db.addTable(currTbl);
} else if (line.startsWith("F")) {
// FieldName:DataType:Extent
int ch1 = line.indexOf(':');
int ch2 = line.lastIndexOf(':');
if ((currTbl == null) || (ch1 == -1) || (ch2 == -1))
throw new IOException("Invalid file format: " + line);
Field f = new Field(line.substring(1, ch1), line.substring(ch1 + 1, ch2));
f.setExtent(Integer.parseInt(line.substring(ch2 + 1)));
currTbl.addField(f);
} else if (line.startsWith("I")) {
if (currTbl == null)
throw new IOException("No associated table for " + line);
// IndexName:Attributes:Field1:Field2:...
List lst = Splitter.on(':').trimResults().splitToList(line);
if (lst.size() < 3)
throw new IOException("Invalid file format: " + line);
Index i = new Index(lst.get(0).substring(1));
i.setUnique(lst.get(1).indexOf('U') > -1);
i.setPrimary(lst.get(1).indexOf('P') > -1);
for (int zz = 2; zz < lst.size(); zz++) {
i.addField(new IndexField(currTbl.getField(lst.get(zz).substring(1)), lst.get(zz).charAt(0) == 'A'));
}
currTbl.addIndex(i);
}
}
}
return db;
}
}
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