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

Example 36 with Channel

use of org.ballerinalang.nativeimpl.io.channels.base.Channel 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 37 with Channel

use of org.ballerinalang.nativeimpl.io.channels.base.Channel 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 38 with Channel

use of org.ballerinalang.nativeimpl.io.channels.base.Channel 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();
}

Example 39 with Channel

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

the class AsyncReadWriteTest method writeRecords.

@Test(description = "Test which will write records to a channel using async io framework")
public void writeRecords() throws IOException, ExecutionException, InterruptedException {
    // Number of characters in this file would be 6
    ByteChannel byteChannel = TestUtil.openForWriting(currentDirectoryPath + "records.csv");
    Channel channel = new MockByteChannel(byteChannel);
    CharacterChannel characterChannel = new CharacterChannel(channel, StandardCharsets.UTF_8.name());
    DelimitedRecordChannel recordChannel = new DelimitedRecordChannel(characterChannel, "\n", ",");
    String[] recordOne = { "Foo", "Bar", "911" };
    BStringArray recordOneArr = new BStringArray(recordOne);
    DelimitedRecordWriteEvent recordWriteEvent = new DelimitedRecordWriteEvent(recordChannel, recordOneArr);
    Future<EventResult> future = eventManager.publish(recordWriteEvent);
    future.get();
    String[] recordTwo = { "Jim", "Com", "119" };
    BStringArray recordTwoArr = new BStringArray(recordTwo);
    recordWriteEvent = new DelimitedRecordWriteEvent(recordChannel, recordTwoArr);
    future = eventManager.publish(recordWriteEvent);
    future.get();
    recordChannel.close();
}

Example 40 with Channel

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

the class RecordInputOutputTest method processRecordSequence.

@Test(description = "Processors records in sequence with hasNext()")
public void processRecordSequence() throws IOException, URISyntaxException {
    int expectedFieldCount = 3;
    boolean hasNext = false;
    // 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", ",");
    hasNext = recordChannel.hasNext();
    String[] readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    Assert.assertTrue(hasNext);
    hasNext = recordChannel.hasNext();
    readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    Assert.assertTrue(hasNext);
    hasNext = recordChannel.hasNext();
    readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    Assert.assertTrue(hasNext);
    hasNext = recordChannel.hasNext();
    readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, 0);
    Assert.assertFalse(hasNext);
    recordChannel.close();
}