/**
* Do a MapReduce-based import of the table and verify that the results were imported as expected.
* (tests readFields(ResultSet) and toString())
*
* @param expectedVal the value we injected into the table.
* @param importCols the columns to import. If null, all columns are used.
*/
protected void verifyImport(String expectedVal, String[] importCols) {
// paths to where our output file will wind up.
Path dataFilePath = getDataFilePath();
removeTableDir();
// run the tool through the normal entry-point.
int ret;
try {
Sqoop importer = new Sqoop();
ret = ToolRunner.run(importer, getArgv(true, importCols));
} catch (Exception e) {
LOG.error("Got exception running Sqoop: " + e.toString());
e.printStackTrace();
ret = 1;
}
// expect a successful return.
assertEquals("Failure during job", 0, ret);
ImportOptions opts = new ImportOptions();
try {
opts.parse(getArgv(false, importCols));
} catch (InvalidOptionsException ioe) {
fail(ioe.toString());
}
CompilationManager compileMgr = new CompilationManager(opts);
String jarFileName = compileMgr.getJarFilename();
ClassLoader prevClassLoader = null;
try {
prevClassLoader = ClassLoaderStack.addJarFile(jarFileName, getTableName());
// now actually open the file and check it
File f = new File(dataFilePath.toString());
assertTrue("Error: " + dataFilePath.toString() + " does not exist", f.exists());
Object readValue = SeqFileReader.getFirstValue(dataFilePath.toString());
if (null == expectedVal) {
assertEquals("Error validating result from SeqFile", "null", readValue.toString());
} else {
assertEquals("Error validating result from SeqFile", expectedVal, readValue.toString());
}
} catch (IOException ioe) {
fail("IOException: " + ioe.toString());
} finally {
if (null != prevClassLoader) {
ClassLoaderStack.setCurrentClassLoader(prevClassLoader);
}
}
}
/** Generate the ORM code for the class. */
public void generate() throws IOException {
Map<String, Integer> columnTypes = connManager.getColumnTypes(tableName);
String[] colNames = options.getColumns();
if (null == colNames) {
colNames = connManager.getColumnNames(tableName);
}
// Generate the Java code
StringBuilder sb = generateClassForColumns(columnTypes, colNames);
// Write this out to a file.
String codeOutDir = options.getCodeOutputDir();
// TODO(aaron): Allow package subdirectory (that goes in sourceFilename).
String sourceFilename = tableName + ".java";
String filename = codeOutDir + sourceFilename;
LOG.debug("Writing source file: " + filename);
LOG.debug("Table name: " + tableName);
StringBuilder sbColTypes = new StringBuilder();
for (String col : colNames) {
Integer colType = columnTypes.get(col);
sbColTypes.append(col + ":" + colType + ", ");
}
String colTypeStr = sbColTypes.toString();
LOG.debug("Columns: " + colTypeStr);
compileManager.addSourceFile(sourceFilename);
// Create any missing parent directories.
File file = new File(filename);
String dirname = file.getParent();
if (null != dirname) {
boolean mkdirSuccess = new File(dirname).mkdirs();
if (!mkdirSuccess) {
LOG.debug("Could not create directory tree for " + dirname);
}
}
OutputStream ostream = null;
Writer writer = null;
try {
ostream = new FileOutputStream(filename);
writer = new OutputStreamWriter(ostream);
writer.append(sb.toString());
} finally {
if (null != writer) {
try {
writer.close();
} catch (IOException ioe) {
// ignored because we're closing.
}
}
if (null != ostream) {
try {
ostream.close();
} catch (IOException ioe) {
// ignored because we're closing.
}
}
}
}