/**
* Copyright 2011-2014 Asakusa Framework Team.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.asakusafw.dmdl.windgate.stream.driver;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.math.BigDecimal;
import org.apache.hadoop.io.Text;
import org.junit.Before;
import org.junit.Test;
import com.asakusafw.dmdl.java.emitter.driver.ObjectDriver;
import com.asakusafw.runtime.value.Date;
import com.asakusafw.runtime.value.DateTime;
import com.asakusafw.windgate.core.vocabulary.DataModelStreamSupport;
import com.asakusafw.windgate.core.vocabulary.DataModelStreamSupport.DataModelReader;
import com.asakusafw.windgate.core.vocabulary.DataModelStreamSupport.DataModelWriter;
/**
* Test for {@link StreamSupportEmitter}.
*/
public class StreamSupportEmitterTest extends GeneratorTesterRoot {
/**
* Initializes the test.
* @throws Exception if some errors were occurred
*/
@Before
public void setUp() throws Exception {
emitDrivers.add(new StreamSupportEmitter());
emitDrivers.add(new ObjectDriver());
}
/**
* A simple case.
* @throws Exception if failed
*/
@Test
public void simple() throws Exception {
ModelLoader loaded = generateJava("simple");
ModelWrapper model = loaded.newModel("Simple");
DataModelStreamSupport<?> support = (DataModelStreamSupport<?>) loaded.newObject("stream", "SimpleStreamSupport");
assertThat(support.getSupportedType(), is((Object) model.unwrap().getClass()));
DataModelStreamSupport<Object> unsafe = unsafe(support);
model.set("value", new Text("Hello, world!"));
ByteArrayOutputStream output = new ByteArrayOutputStream();
DataModelWriter<Object> writer = unsafe.createWriter("example", output);
writer.write(model.unwrap());
writer.flush();
output.close();
Object buffer = loaded.newModel("Simple").unwrap();
DataModelReader<Object> reader = unsafe.createReader("example", new ByteArrayInputStream(output.toByteArray()));
assertThat(reader.readTo(buffer), is(true));
assertThat(buffer, is(buffer));
assertThat(reader.readTo(buffer), is(false));
}
/**
* All types.
* @throws Exception if failed
*/
@Test
public void types() throws Exception {
ModelLoader loaded = generateJava("types");
ModelWrapper model = loaded.newModel("Types");
DataModelStreamSupport<?> support = (DataModelStreamSupport<?>) loaded.newObject("stream", "TypesStreamSupport");
assertThat(support.getSupportedType(), is((Object) model.unwrap().getClass()));
ModelWrapper empty = loaded.newModel("Types");
ModelWrapper all = loaded.newModel("Types");
all.set("c_int", 100);
all.set("c_text", new Text("Hello, DMDL world!"));
all.set("c_boolean", true);
all.set("c_byte", (byte) 64);
all.set("c_short", (short) 1023);
all.set("c_long", 100000L);
all.set("c_float", 1.5f);
all.set("c_double", 2.5f);
all.set("c_decimal", new BigDecimal("3.1415"));
all.set("c_date", new Date(2011, 9, 1));
all.set("c_datetime", new DateTime(2011, 12, 31, 23, 59, 59));
DataModelStreamSupport<Object> unsafe = unsafe(support);
ByteArrayOutputStream output = new ByteArrayOutputStream();
DataModelWriter<Object> writer = unsafe.createWriter("example", output);
writer.write(empty.unwrap());
writer.write(all.unwrap());
writer.flush();
output.close();
Object buffer = loaded.newModel("Types").unwrap();
DataModelReader<Object> reader = unsafe.createReader("example", new ByteArrayInputStream(output.toByteArray()));
assertThat(reader.readTo(buffer), is(true));
assertThat(buffer, is(empty.unwrap()));
assertThat(reader.readTo(buffer), is(true));
assertThat(buffer, is(all.unwrap()));
assertThat(reader.readTo(buffer), is(false));
}
/**
* Compile with no attributes.
* @throws Exception if failed
*/
@Test
public void no_attributes() throws Exception {
ModelLoader loaded = generateJava("no_attributes");
assertThat(loaded.exists("stream", "NoAttributesStreamSupport"), is(false));
}
/**
* Compile with invalid attribute.
* @throws Exception if failed
*/
@Test
public void invalid_attribute() throws Exception {
shouldSemanticError("invalid_attribute");
}
@SuppressWarnings("unchecked")
private DataModelStreamSupport<Object> unsafe(DataModelStreamSupport<?> support) {
return (DataModelStreamSupport<Object>) support;
}
}