1 | import com.mysql.cj.exceptions.MysqlErrorNumbers;
|
---|
2 | import picocli.CommandLine;
|
---|
3 | import picocli.CommandLine.Command;
|
---|
4 | import picocli.CommandLine.Option;
|
---|
5 | import picocli.CommandLine.Parameters;
|
---|
6 |
|
---|
7 | import java.sql.*;
|
---|
8 | import java.util.HashMap;
|
---|
9 | import com.google.gson.Gson;
|
---|
10 | import java.io.FileWriter;
|
---|
11 | import java.util.concurrent.Callable;
|
---|
12 |
|
---|
13 | /*
|
---|
14 | TODO:
|
---|
15 |
|
---|
16 | */
|
---|
17 |
|
---|
18 | //-u su41Tipple -p --port 3306 --dbname koicarp_test
|
---|
19 | //@/home/su41/configFileTest
|
---|
20 |
|
---|
21 | /*
|
---|
22 | The mixinStandardHelpOptions = true adds in --help and --version options
|
---|
23 | */
|
---|
24 | @Command (name="sqlCli", description = "Arguments for database connection", mixinStandardHelpOptions = true)
|
---|
25 | public class sqlCli implements Callable<Integer> {
|
---|
26 |
|
---|
27 | //our cli arguments
|
---|
28 | @Option(names = {"-u", "--user"}, description = "The user name",
|
---|
29 | required = true)
|
---|
30 | String userName;
|
---|
31 |
|
---|
32 | //interactive allows the user to omit the argument value and instead enter it as a prompt
|
---|
33 | /*
|
---|
34 | NOTE: if you are running an interactive option on an IDE, most likely the IDE will be using
|
---|
35 | the javaw.exe library which tries to mimic the terminal.
|
---|
36 | The point is that interactive option would usually make whatever you enter hidden (it doesn't
|
---|
37 | echo back) but on the IDE it will echo back.
|
---|
38 | */
|
---|
39 | @Option(names = {"-p", "--password"}, description = "User's password", interactive = true,
|
---|
40 | required = true)
|
---|
41 | String password;
|
---|
42 |
|
---|
43 | @Option(names = {"--port"}, description="Port number", defaultValue="3306")
|
---|
44 | int port;
|
---|
45 |
|
---|
46 | @Option(names = {"--dbname"}, description="Name of the database", defaultValue="koicarp_test")
|
---|
47 | String dbName;
|
---|
48 |
|
---|
49 | @Option(names = {"--host"}, description = "Type of host e.g. localhost ",
|
---|
50 | required = true, defaultValue = "localhost")
|
---|
51 | String host;
|
---|
52 |
|
---|
53 | /*
|
---|
54 | this parameter can be read in at any point on the options line.
|
---|
55 | but that's only because it's the only parameter at the moment.
|
---|
56 | If we add more parameters, will have to start indexing
|
---|
57 | https://picocli.info/quick-guide.html#_options_and_parameters
|
---|
58 | */
|
---|
59 | @Parameters(description = "Name of the output JSON file. E.g. yourFileName.json")
|
---|
60 | String jsonOutputFile;
|
---|
61 |
|
---|
62 | public Integer call(){
|
---|
63 | //if it doesn't end with ...
|
---|
64 | if(!jsonOutputFile.endsWith(".json")){
|
---|
65 | System.out.println("Invalid file format.");
|
---|
66 | System.out.println("The file to save the output to must be a .json file.");
|
---|
67 | //exit code other than 0 means it's not fine.
|
---|
68 | return 1;
|
---|
69 | }
|
---|
70 | //else we're good to go.
|
---|
71 | // databaseConnect(userName, password, port, dbName, projectID, jsonOutputFile, host);
|
---|
72 | int status = databaseConnect(userName, password, port, dbName, jsonOutputFile, host);
|
---|
73 | return status;
|
---|
74 | }
|
---|
75 |
|
---|
76 | public static void main(String... args) {
|
---|
77 | int exitCode = new CommandLine(new sqlCli()).execute(args);
|
---|
78 | System.exit(exitCode);
|
---|
79 | }
|
---|
80 |
|
---|
81 |
|
---|
82 | private static int databaseConnect(String user, String pass, int port, String dbName,
|
---|
83 | String fileName, String host){
|
---|
84 | Connection conn;
|
---|
85 | Statement stmt;
|
---|
86 | //return status for code to send back to commandLine.execute
|
---|
87 | int returnStatus = 0;
|
---|
88 | // String dbUrl = "jdbc:mysql://localhost:" + port +"/"+ dbName;
|
---|
89 |
|
---|
90 | //TODO: are we changing / putting the type of database into a variable too?
|
---|
91 | String dbUrl = "jdbc:mysql://" + host + ":" + port +"/"+ dbName;
|
---|
92 |
|
---|
93 | //originally in the try ()
|
---|
94 | // FileWriter file = new FileWriter("tippleData.json")
|
---|
95 | System.out.println("Saving output to:");
|
---|
96 | System.out.println(" " + fileName);
|
---|
97 |
|
---|
98 | try (FileWriter file = new FileWriter(fileName)){
|
---|
99 | //register the jdbc driver
|
---|
100 | Class.forName("com.mysql.cj.jdbc.Driver");
|
---|
101 | //opening the connection
|
---|
102 | System.out.println("Connecting to database:");
|
---|
103 | System.out.println(" " + dbUrl);
|
---|
104 |
|
---|
105 | conn = DriverManager.getConnection(dbUrl, user, pass);
|
---|
106 |
|
---|
107 | //create and execute query
|
---|
108 | stmt = conn.createStatement();
|
---|
109 | //remember to put in the projectId parameter instead of hardcoding it
|
---|
110 |
|
---|
111 | /*
|
---|
112 | if we get up to the point where we allow boundary setting, i.e user specifies
|
---|
113 | between x and y number of records
|
---|
114 | could use an if statement to check
|
---|
115 | if the paramter exists or not, if it does then run a statement with those x and y
|
---|
116 | if not, then run a different statement without them
|
---|
117 | */
|
---|
118 |
|
---|
119 | // String sql = "SELECT name, id, typeId, created from td_ContentItem where projectId="+projectID;
|
---|
120 |
|
---|
121 | String sql = "SELECT cItem.name, cItem.created, mFile.path\n" +
|
---|
122 | "FROM td_ManagedFile AS mFile, td_ContentItem AS cItem, td_ContentItem_MediaItem AS cMediaItem, td_MediaItem AS mItem\n" +
|
---|
123 | "WHERE\n" +
|
---|
124 | "cItem.id = cMediaItem.contentItemId \n" +
|
---|
125 | "and cMediaItem.mediaItemId = mItem.id\n" +
|
---|
126 | "And mItem.fileId = mFile.id\n" +
|
---|
127 | "ORDER BY mFile.projectId;\n";
|
---|
128 | ResultSet myResult = stmt.executeQuery(sql);
|
---|
129 | ResultSetMetaData resultMetaData = myResult.getMetaData();
|
---|
130 |
|
---|
131 | int dbColumn = resultMetaData.getColumnCount();
|
---|
132 | System.out.println(" Number of columns in table retrieved: " + dbColumn);
|
---|
133 |
|
---|
134 | //create gson object and have the file write the opening bracket for valid json
|
---|
135 | Gson myGSon = new Gson();
|
---|
136 | file.write("[");
|
---|
137 |
|
---|
138 | while(myResult.next()){
|
---|
139 | //string/object as key/value pair
|
---|
140 | HashMap<String, Object> dbRow = new HashMap<String, Object>(dbColumn);
|
---|
141 |
|
---|
142 | for(int i = 1; i <= dbColumn; i++){
|
---|
143 | /*
|
---|
144 | doing checking this way could mean we have to have a case
|
---|
145 | for every data type,
|
---|
146 | if a data type changes in the database that's probably fine, but
|
---|
147 | if a new data type is sent in, we'll have update the statements
|
---|
148 | */
|
---|
149 | /*
|
---|
150 | Without this kind of check though, the output would throw a pretty nasty
|
---|
151 | warning about illegal reflective access. Though it would still print the
|
---|
152 | date out fine. The warning:
|
---|
153 |
|
---|
154 | WARNING: An illegal reflective access operation has occurred
|
---|
155 | WARNING: Illegal reflective access by com.google.gson.internal.bind.ReflectiveTypeAdapterFactory (file:/home/su41/.gradle/caches/modules-2/files-2.1/com.google.code.gson/gson/2.7/751f548c85fa49f330cecbb1875893f971b33c4e/gson-2.7.jar) to field java.time.LocalDateTime.date
|
---|
156 | WARNING: Please consider reporting this to the maintainers of com.google.gson.internal.bind.ReflectiveTypeAdapterFactory
|
---|
157 | WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
|
---|
158 | WARNING: All illegal access operations will be denied in a future release
|
---|
159 | */
|
---|
160 | if(resultMetaData.getColumnTypeName(i).equals("DATETIME")){
|
---|
161 | dbRow.put(resultMetaData.getColumnName(i), myResult.getDate(i));
|
---|
162 | }
|
---|
163 | else{
|
---|
164 | dbRow.put(resultMetaData.getColumnName(i), myResult.getObject(i));
|
---|
165 | }
|
---|
166 | }
|
---|
167 | String dbRowAsJson = myGSon.toJson(dbRow);
|
---|
168 |
|
---|
169 | //printing statements for checking output
|
---|
170 | // System.out.println("As normal: " + dbRow);
|
---|
171 | // System.out.println("====");
|
---|
172 | //System.out.println("As JSON: " + anObject);
|
---|
173 |
|
---|
174 | //saving to json file
|
---|
175 |
|
---|
176 | file.write(dbRowAsJson);
|
---|
177 |
|
---|
178 | //Adding commas between each row that we write to our file, as we need it to be valid json
|
---|
179 | if(!myResult.isLast()){
|
---|
180 | file.write(",");
|
---|
181 | }
|
---|
182 | }
|
---|
183 | //write the closing bracket, and flush the writer
|
---|
184 | file.write("]");
|
---|
185 | file.flush();
|
---|
186 | file.close();
|
---|
187 | //System.out.println(myList);
|
---|
188 | System.out.println("Closing connection...");
|
---|
189 | myResult.close();
|
---|
190 | stmt.close();
|
---|
191 | conn.close();
|
---|
192 | System.out.println("Connection closed");
|
---|
193 | }
|
---|
194 | catch(SQLException sqlError){
|
---|
195 | // looking at the sql error code is good for debugging.
|
---|
196 | // can ref: https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-reference-error-sqlstates.html
|
---|
197 | // to see what they're for
|
---|
198 |
|
---|
199 | // System.out.println("MySQL error code: " + sqlError.getErrorCode());
|
---|
200 |
|
---|
201 |
|
---|
202 | //prints out the error message from sql, then check to see which error code
|
---|
203 | // came back and what the code matches.
|
---|
204 | // if it's access denied, usually something to do with username, password or db name
|
---|
205 | System.out.println(sqlError.getMessage());
|
---|
206 |
|
---|
207 | if(sqlError.getErrorCode() == MysqlErrorNumbers.ER_ACCESS_DENIED_ERROR){
|
---|
208 | System.out.println("Error with database credentials. Double check your: ");
|
---|
209 | System.out.println(" -'Username'");
|
---|
210 | System.out.println(" -'Password' ");
|
---|
211 | }
|
---|
212 |
|
---|
213 | if(sqlError.getErrorCode() == MysqlErrorNumbers.ER_DBACCESS_DENIED_ERROR){
|
---|
214 | System.out.println("Error with database credentials. Double check your: ");
|
---|
215 | System.out.println(" -'Database name' ");
|
---|
216 | }
|
---|
217 | returnStatus = 1;
|
---|
218 |
|
---|
219 | }
|
---|
220 | catch(Exception e){
|
---|
221 | //catch for class.name
|
---|
222 | e.printStackTrace();
|
---|
223 | //print out wrong username or password instead of the stack trace?
|
---|
224 | System.out.println("encountered error");
|
---|
225 | returnStatus = 2;
|
---|
226 | }
|
---|
227 | return returnStatus;
|
---|
228 | }
|
---|
229 | }
|
---|