Examples with Transaction jetbrains.exodus.env.Transaction used on opensource projects

Example 36 with Transaction

use of jetbrains.exodus.env.Transaction in project xodus by JetBrains.

the class VfsStreamsTests method writeRandomAccessOverwriteRead.

@Test
public void writeRandomAccessOverwriteRead() throws IOException {
    final Transaction txn = env.beginTransaction();
    final File file0 = vfs.createFile(txn, "file0");
    OutputStream outputStream = vfs.appendFile(txn, file0);
    outputStream.write((HOEGAARDEN + HOEGAARDEN + HOEGAARDEN + HOEGAARDEN).getBytes(UTF_8));
    outputStream.close();
    txn.flush();
    Assert.assertEquals(40, vfs.getFileLength(txn, file0));
    outputStream = vfs.writeFile(txn, file0, 0);
    outputStream.write("x".getBytes(UTF_8));
    outputStream.close();
    Assert.assertEquals(40, vfs.getFileLength(txn, file0));
    outputStream = vfs.writeFile(txn, file0, 10);
    outputStream.write("x".getBytes(UTF_8));
    outputStream.close();
    Assert.assertEquals(40, vfs.getFileLength(txn, file0));
    outputStream = vfs.writeFile(txn, file0, 20);
    outputStream.write("x".getBytes(UTF_8));
    outputStream.close();
    Assert.assertEquals(40, vfs.getFileLength(txn, file0));
    outputStream = vfs.writeFile(txn, file0, 30);
    outputStream.write("x".getBytes(UTF_8));
    outputStream.close();
    txn.flush();
    Assert.assertEquals(40, vfs.getFileLength(txn, file0));
    final InputStream inputStream = vfs.readFile(txn, file0);
    Assert.assertEquals('x' + HOEGAARDEN.substring(1) + 'x' + HOEGAARDEN.substring(1) + 'x' + HOEGAARDEN.substring(1) + 'x' + HOEGAARDEN.substring(1), streamAsString(inputStream));
    inputStream.close();
    txn.abort();
}

Example 37 with Transaction

use of jetbrains.exodus.env.Transaction in project xodus by JetBrains.

the class VfsStreamsTests method writeRead4.

@Test
public void writeRead4() throws IOException {
    final Transaction txn = env.beginTransaction();
    final File file0 = vfs.createFile(txn, "file0");
    final OutputStream outputStream = vfs.writeFile(txn, file0);
    final int count = 0x10000;
    outputStream.write(new byte[count]);
    outputStream.close();
    final InputStream inputStream = vfs.readFile(txn, file0);
    for (int i = 0; i < count; ++i) {
        Assert.assertEquals(0, inputStream.read());
    }
    inputStream.close();
    txn.commit();
}

Example 38 with Transaction

use of jetbrains.exodus.env.Transaction in project xodus by JetBrains.

the class VfsStreamsTests method testFileLength.

@Test
public void testFileLength() throws IOException {
    final Transaction txn = env.beginTransaction();
    vfs.createFile(txn, "file0");
    txn.flush();
    for (int i = 0; i < 300; ++i) {
        final File file0 = vfs.openFile(txn, "file0", false);
        Assert.assertNotNull(file0);
        Assert.assertEquals((long) i, vfs.getFileLength(txn, file0));
        final OutputStream outputStream = vfs.appendFile(txn, file0);
        outputStream.write(i);
        outputStream.close();
        txn.flush();
    }
    txn.abort();
}

Example 39 with Transaction

use of jetbrains.exodus.env.Transaction in project xodus by JetBrains.

the class VfsStreamsTests method writeNegativePosition.

@Test
public void writeNegativePosition() throws IOException {
    final Transaction txn = env.beginTransaction();
    final File file0 = vfs.createFile(txn, "file0");
    TestUtil.runWithExpectedException(new Runnable() {

        @Override
        public void run() {
            vfs.writeFile(txn, file0, -1);
        }
    }, IllegalArgumentException.class);
    txn.commit();
}

Example 40 with Transaction

use of jetbrains.exodus.env.Transaction in project xodus by JetBrains.

the class VfsStreamsTests method writeRandomAccessRead.

@Test
public void writeRandomAccessRead() throws IOException {
    final Transaction txn = env.beginTransaction();
    final File file0 = vfs.createFile(txn, "file0");
    final OutputStream outputStream = vfs.appendFile(txn, file0);
    outputStream.write((HOEGAARDEN + HOEGAARDEN + HOEGAARDEN + HOEGAARDEN).getBytes(UTF_8));
    outputStream.close();
    txn.flush();
    InputStream inputStream = vfs.readFile(txn, file0, 0);
    Assert.assertEquals(HOEGAARDEN + HOEGAARDEN + HOEGAARDEN + HOEGAARDEN, streamAsString(inputStream));
    inputStream.close();
    inputStream = vfs.readFile(txn, file0, 10);
    Assert.assertEquals(HOEGAARDEN + HOEGAARDEN + HOEGAARDEN, streamAsString(inputStream));
    inputStream.close();
    inputStream = vfs.readFile(txn, file0, 20);
    Assert.assertEquals(HOEGAARDEN + HOEGAARDEN, streamAsString(inputStream));
    inputStream.close();
    inputStream = vfs.readFile(txn, file0, 30);
    Assert.assertEquals(HOEGAARDEN, streamAsString(inputStream));
    inputStream.close();
    txn.abort();
}