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

Example 16 with CharacterChannel

use of org.ballerinalang.nativeimpl.io.channels.base.CharacterChannel 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 17 with CharacterChannel

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

Example 18 with CharacterChannel

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

the class RecordInputOutputTest method readLongRecord.

@Test(description = "Read lengthy records")
public void readLongRecord() throws IOException, URISyntaxException {
    int expectedFieldCount = 18;
    // Number of characters in this file would be 6
    ByteChannel byteChannel = TestUtil.openForReading("datafiles/io/records/sample4.csv");
    Channel channel = new MockByteChannel(byteChannel);
    CharacterChannel characterChannel = new CharacterChannel(channel, StandardCharsets.UTF_8.name());
    DelimitedRecordChannel recordChannel = new DelimitedRecordChannel(characterChannel, "\n", ",");
    String[] readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
}

Example 19 with CharacterChannel

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

the class RecordInputOutputTest method readRecords.

@Test(description = "Reads records from file")
public void readRecords() throws IOException, URISyntaxException {
    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", ",");
    String[] readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, expectedFieldCount);
    readRecord = recordChannel.read();
    Assert.assertEquals(readRecord.length, 0);
    recordChannel.close();
}

Example 20 with CharacterChannel

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

the class CloseCharacterChannel method execute.

/**
 * <p>
 * Closes a character channel.
 * </p>
 * <p>
 * {@inheritDoc}
 */
@Override
public void execute(Context context, CallableUnitCallback callback) {
    BStruct channel = (BStruct) context.getRefArgument(CHARACTER_CHANNEL_INDEX);
    CharacterChannel charChannel = (CharacterChannel) channel.getNativeData(IOConstants.CHARACTER_CHANNEL_NAME);
    EventContext eventContext = new EventContext(context, callback);
    IOUtils.close(charChannel, eventContext, CloseCharacterChannel::closeResponse);
}