Examples with CharacterChannel org.ballerinalang.nativeimpl.io.channels.base.CharacterChannel used on opensource projects

Example 11 with CharacterChannel

use of org.ballerinalang.nativeimpl.io.channels.base.CharacterChannel in project ballerina by ballerina-lang.

the class CharacterInputOutputBufferTest method readLongCharacters.

@Test(description = "Reads characters which are represented with long bytes")
public void readLongCharacters() throws IOException, URISyntaxException {
    int numberOfCharactersToRead = 2;
    // Number of characters in this file would be 6
    ByteChannel byteChannel = TestUtil.openForReading("datafiles/io/text/longChars.txt");
    Channel channel = new MockByteChannel(byteChannel);
    CharacterChannel characterChannel = new CharacterChannel(channel, StandardCharsets.UTF_8.name());
    String readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals("NJa", readCharacters);
    numberOfCharactersToRead = 3;
    readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals("bcNJ", readCharacters);
    numberOfCharactersToRead = 4;
    readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals("ff", readCharacters);
    characterChannel.close();
}

Example 12 with CharacterChannel

use of org.ballerinalang.nativeimpl.io.channels.base.CharacterChannel in project ballerina by ballerina-lang.

the class CharacterInputOutputBufferTest method readFussyCharacters.

@Test(description = "Read characters which does not fit to the fixed buffer limit")
public void readFussyCharacters() throws IOException, URISyntaxException {
    int numberOfCharactersToRead = 2;
    // Number of characters in this file would be 6
    ByteChannel byteChannel = TestUtil.openForReading("datafiles/io/text/utf8file.txt");
    Channel channel = new MockByteChannel(byteChannel);
    CharacterChannel characterChannel = new CharacterChannel(channel, StandardCharsets.UTF_8.name());
    String readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals(readCharacters, "aa");
    numberOfCharactersToRead = 4;
    readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals(readCharacters, "abbNJ");
    readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals(readCharacters.length(), 0);
    characterChannel.close();
}

Example 13 with CharacterChannel

use of org.ballerinalang.nativeimpl.io.channels.base.CharacterChannel in project ballerina by ballerina-lang.

the class CharacterInputOutputBufferTest method writeCharacters.

@Test(description = "Write characters to file")
public void writeCharacters() throws IOException {
    // Number of characters in this file would be 6
    ByteChannel byteChannel = TestUtil.openForWriting(currentDirectoryPath + "write.txt");
    Channel channel = new MockByteChannel(byteChannel);
    CharacterChannel characterChannel = new CharacterChannel(channel, StandardCharsets.UTF_8.name());
    String text = "HelloNJ";
    int numberOfBytes = text.getBytes().length;
    int numberOfBytesWritten = characterChannel.write(text, 0);
    Assert.assertEquals(numberOfBytesWritten, numberOfBytes);
    characterChannel.close();
}

Example 14 with CharacterChannel

use of org.ballerinalang.nativeimpl.io.channels.base.CharacterChannel in project ballerina by ballerina-lang.

the class CharacterInputOutputBufferTest method readCharacters.

@Test(description = "Read characters into multiple iterations")
public void readCharacters() throws IOException, URISyntaxException {
    int numberOfCharactersToRead = 2;
    // Number of characters in this file would be 6
    ByteChannel byteChannel = TestUtil.openForReading("datafiles/io/text/6charfile.txt");
    Channel channel = new MockByteChannel(byteChannel);
    CharacterChannel characterChannel = new CharacterChannel(channel, StandardCharsets.UTF_8.name());
    String readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals(readCharacters.length(), numberOfCharactersToRead);
    numberOfCharactersToRead = 1;
    readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals(readCharacters.length(), numberOfCharactersToRead);
    numberOfCharactersToRead = 4;
    readCharacters = characterChannel.read(numberOfCharactersToRead);
    Assert.assertEquals(readCharacters.length(), 3);
    characterChannel.close();
}

Example 15 with CharacterChannel

use of org.ballerinalang.nativeimpl.io.channels.base.CharacterChannel in project ballerina by ballerina-lang.

the class AsyncReadWriteTest method readTextRecords.

@Test(description = "Test which will read text records from a given channel using async io framework")
public void readTextRecords() throws IOException, URISyntaxException, ExecutionException, InterruptedException {
    int expectedFieldCount = 3;
    // Number of characters in this file would be 6
    ByteChannel byteChannel = TestUtil.openForReading("datafiles/io/records/sample.csv");
    Channel channel = new MockByteChannel(byteChannel);
    CharacterChannel characterChannel = new CharacterChannel(channel, StandardCharsets.UTF_8.name());
    DelimitedRecordChannel recordChannel = new DelimitedRecordChannel(characterChannel, "\n", ",");
    DelimitedRecordReadEvent event = new DelimitedRecordReadEvent(recordChannel);
    Future<EventResult> future = eventManager.publish(event);
    EventResult eventResult = future.get();
    String[] readRecord = (String[]) eventResult.getResponse();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    event = new DelimitedRecordReadEvent(recordChannel);
    future = eventManager.publish(event);
    eventResult = future.get();
    readRecord = (String[]) eventResult.getResponse();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    event = new DelimitedRecordReadEvent(recordChannel);
    future = eventManager.publish(event);
    eventResult = future.get();
    readRecord = (String[]) eventResult.getResponse();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    event = new DelimitedRecordReadEvent(recordChannel);
    future = eventManager.publish(event);
    eventResult = future.get();
    readRecord = (String[]) eventResult.getResponse();
    Assert.assertEquals(readRecord.length, 0);
    recordChannel.close();
}