Examples with DiffToChangeLog liquibase.diff.output.changelog.DiffToChangeLog used on opensource projects

Example 11 with DiffToChangeLog

use of liquibase.diff.output.changelog.DiffToChangeLog in project liquibase by liquibase.

the class GenerateChangeLogTask method executeWithLiquibaseClassloader.

@Override
public void executeWithLiquibaseClassloader() throws BuildException {
    Liquibase liquibase = getLiquibase();
    Database database = liquibase.getDatabase();
    CatalogAndSchema catalogAndSchema = buildCatalogAndSchema(database);
    DiffOutputControl diffOutputControl = getDiffOutputControl();
    DiffToChangeLog diffToChangeLog = new DiffToChangeLog(diffOutputControl);
    for (ChangeLogOutputFile changeLogOutputFile : changeLogOutputFiles) {
        String encoding = getOutputEncoding(changeLogOutputFile);
        PrintStream printStream = null;
        try {
            FileResource outputFile = changeLogOutputFile.getOutputFile();
            ChangeLogSerializer changeLogSerializer = changeLogOutputFile.getChangeLogSerializer();
            log("Writing change log file " + outputFile.toString(), Project.MSG_INFO);
            printStream = new PrintStream(outputFile.getOutputStream(), true, encoding);
            liquibase.generateChangeLog(catalogAndSchema, diffToChangeLog, printStream, changeLogSerializer);
        } catch (UnsupportedEncodingException e) {
            throw new BuildException("Unable to generate a change log. Encoding [" + encoding + "] is not supported.", e);
        } catch (IOException e) {
            throw new BuildException("Unable to generate a change log. Error creating output stream.", e);
        } catch (ParserConfigurationException e) {
            throw new BuildException("Unable to generate a change log. Error configuring parser.", e);
        } catch (DatabaseException e) {
            throw new BuildException("Unable to generate a change log: " + e.getMessage(), e);
        } finally {
            FileUtils.close(printStream);
        }
    }
}

Example 12 with DiffToChangeLog

use of liquibase.diff.output.changelog.DiffToChangeLog in project liquibase by liquibase.

the class AbstractIntegrationTest method testGenerateChangeLogWithNoChanges.

@Test
public void testGenerateChangeLogWithNoChanges() throws Exception {
    assumeNotNull(this.getDatabase());
    runCompleteChangeLog();
    DiffResult diffResult = DiffGeneratorFactory.getInstance().compare(database, database, new CompareControl());
    DiffToChangeLog changeLogWriter = new DiffToChangeLog(diffResult, new DiffOutputControl(false, false, false, null));
    List<ChangeSet> changeSets = changeLogWriter.generateChangeSets();
    assertEquals("generating two change logs without any changes in between should result in an empty generated " + "differential change set.", 0, changeSets.size());
}

Example 13 with DiffToChangeLog

use of liquibase.diff.output.changelog.DiffToChangeLog in project liquibase by liquibase.

the class AbstractIntegrationTest method testRerunDiffChangeLog.

@Test
public void testRerunDiffChangeLog() throws Exception {
    assumeNotNull(this.getDatabase());
    for (int run = 0; run < 2; run++) {
        // run once outputting data as insert, once as csv
        boolean outputCsv = run == 1;
        runCompleteChangeLog();
        SnapshotControl snapshotControl = new SnapshotControl(database);
        DatabaseSnapshot originalSnapshot = SnapshotGeneratorFactory.getInstance().createSnapshot(database.getDefaultSchema(), database, snapshotControl);
        CompareControl compareControl = new CompareControl();
        // database returns different data even if the same
        compareControl.addSuppressedField(Column.class, "defaultValue");
        // database returns different data even if the same
        compareControl.addSuppressedField(Column.class, "autoIncrementInformation");
        if (database instanceof OracleDatabase) {
            // database returns different nvarchar2 info even though they are the same
            compareControl.addSuppressedField(Column.class, "type");
            // database returns different nullable on views, e.g. v_person.id
            compareControl.addSuppressedField(Column.class, "nullable");
        }
        if (database instanceof PostgresDatabase) {
            // database returns different nvarchar2 info even though they are the same
            compareControl.addSuppressedField(Column.class, "type");
        }
        DiffOutputControl diffOutputControl = new DiffOutputControl();
        File tempFile = tempDirectory.getRoot().createTempFile("liquibase-test", ".xml");
        if (outputCsv) {
            diffOutputControl.setDataDir(new File(tempFile.getParentFile(), "liquibase-data").getCanonicalPath().replaceFirst("\\w:", ""));
        }
        DiffResult diffResult = DiffGeneratorFactory.getInstance().compare(database, null, compareControl);
        FileOutputStream output = new FileOutputStream(tempFile);
        try {
            new DiffToChangeLog(diffResult, new DiffOutputControl()).print(new PrintStream(output));
            output.flush();
        } finally {
            output.close();
        }
        Liquibase liquibase = createLiquibase(tempFile.getName());
        clearDatabase();
        DatabaseSnapshot emptySnapshot = SnapshotGeneratorFactory.getInstance().createSnapshot(database.getDefaultSchema(), database, new SnapshotControl(database));
        // run again to test changelog testing logic
        liquibase = createLiquibase(tempFile.getName());
        try {
            liquibase.update(this.contexts);
        } catch (ValidationFailedException e) {
            e.printDescriptiveError(System.out);
            throw e;
        }
        DatabaseSnapshot migratedSnapshot = SnapshotGeneratorFactory.getInstance().createSnapshot(database.getDefaultSchema(), database, new SnapshotControl(database));
        DiffResult finalDiffResult = DiffGeneratorFactory.getInstance().compare(originalSnapshot, migratedSnapshot, compareControl);
        try {
            assertTrue("recreating the database from the generated change log should cause both 'before' and " + "'after' snapshots to be equal.", finalDiffResult.areEqual());
        } catch (AssertionError e) {
            new DiffToReport(finalDiffResult, System.err).print();
            throw e;
        }
        // diff to empty and drop all
        DiffResult emptyDiffResult = DiffGeneratorFactory.getInstance().compare(emptySnapshot, migratedSnapshot, compareControl);
        output = new FileOutputStream(tempFile);
        try {
            new DiffToChangeLog(emptyDiffResult, new DiffOutputControl(true, true, true, null)).print(new PrintStream(output));
            output.flush();
        } finally {
            output.close();
        }
        liquibase = createLiquibase(tempFile.getName());
        Scope.getCurrentScope().getLog(getClass()).info("updating from " + tempFile.getCanonicalPath());
        try {
            liquibase.update(this.contexts);
        } catch (LiquibaseException e) {
            throw e;
        }
        DatabaseSnapshot emptyAgainSnapshot = SnapshotGeneratorFactory.getInstance().createSnapshot(database.getDefaultSchema(), database, new SnapshotControl(database));
        assertEquals("a database that was 'updated' to an empty snapshot should only have 2 tables left: " + "the database change log table and the lock table.", 2, emptyAgainSnapshot.get(Table.class).size());
        assertEquals("a database that was 'updated' to an empty snapshot should not contain any views.", 0, emptyAgainSnapshot.get(View.class).size());
    }
}

Example 14 with DiffToChangeLog

use of liquibase.diff.output.changelog.DiffToChangeLog in project liquibase by liquibase.

the class AbstractIntegrationTest method testRerunDiffChangeLogAltSchema.

@Test
public void testRerunDiffChangeLogAltSchema() throws Exception {
    assumeNotNull(this.getDatabase());
    if (database.getShortName().equalsIgnoreCase("mssql")) {
        // not possible on MSSQL.
        return;
    }
    if (!database.supportsSchemas()) {
        return;
    }
    Liquibase liquibase = createLiquibase(includedChangeLog);
    database.setDefaultSchemaName("lbschem2");
    clearDatabase();
    LockService lockService = LockServiceFactory.getInstance().getLockService(database);
    lockService.forceReleaseLock();
    liquibase.update(includedChangeLog);
    DatabaseSnapshot originalSnapshot = SnapshotGeneratorFactory.getInstance().createSnapshot(database.getDefaultSchema(), database, new SnapshotControl(database));
    CompareControl compareControl = new CompareControl(new CompareControl.SchemaComparison[] { new CompareControl.SchemaComparison(CatalogAndSchema.DEFAULT, new CatalogAndSchema("lbcat2", null)) }, originalSnapshot.getSnapshotControl().getTypesToInclude());
    DiffResult diffResult = DiffGeneratorFactory.getInstance().compare(database, null, compareControl);
    File tempFile = File.createTempFile("liquibase-test", ".xml");
    FileOutputStream output = new FileOutputStream(tempFile);
    try {
        new DiffToChangeLog(diffResult, new DiffOutputControl()).print(new PrintStream(output));
        output.flush();
    } finally {
        output.close();
    }
    liquibase = createLiquibase(tempFile.getName());
    clearDatabase();
    // run again to test changelog testing logic
    Executor executor = Scope.getCurrentScope().getSingleton(ExecutorService.class).getExecutor("jdbc", database);
    try {
        executor.execute(new DropTableStatement("lbcat2", null, database.getDatabaseChangeLogTableName(), false));
    } catch (DatabaseException e) {
    // ok
    }
    try {
        executor.execute(new DropTableStatement("lbcat2", null, database.getDatabaseChangeLogLockTableName(), false));
    } catch (DatabaseException e) {
    // ok
    }
    database.commit();
    DatabaseConnection connection = new JdbcConnection(testSystem.getConnection());
    database = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(connection);
    database.setDefaultSchemaName("lbschem2");
    liquibase = createLiquibase(tempFile.getName());
    try {
        liquibase.update(this.contexts);
    } catch (ValidationFailedException e) {
        e.printDescriptiveError(System.out);
        throw e;
    }
    tempFile.deleteOnExit();
    DatabaseSnapshot finalSnapshot = SnapshotGeneratorFactory.getInstance().createSnapshot(database.getDefaultSchema(), database, new SnapshotControl(database));
    CompareControl finalCompareControl = new CompareControl();
    finalCompareControl.addSuppressedField(Column.class, "autoIncrementInformation");
    DiffResult finalDiffResult = DiffGeneratorFactory.getInstance().compare(originalSnapshot, finalSnapshot, finalCompareControl);
    new DiffToReport(finalDiffResult, System.out).print();
    assertTrue("running the same change log two times against an alternative schema should produce " + "equal snapshots.", finalDiffResult.areEqual());
}