/**
* 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.directio.sequencefile.driver;
import java.util.Map;
import com.asakusafw.dmdl.directio.sequencefile.driver.SequenceFileFormatTrait.Configuration;
import com.asakusafw.dmdl.model.AstAttribute;
import com.asakusafw.dmdl.model.AstAttributeElement;
import com.asakusafw.dmdl.semantics.DmdlSemantics;
import com.asakusafw.dmdl.semantics.ModelDeclaration;
import com.asakusafw.dmdl.spi.ModelAttributeDriver;
import com.asakusafw.dmdl.util.AttributeUtil;
/**
* Processes <code>@directio.csv</code> attributes.
<h2>'@directio.csv' attribute</h2>
The attributed declaration can have no members.
* @since 0.4.0
*/
public class SequenceFileFormatDriver extends ModelAttributeDriver {
/**
* The attribute name.
*/
public static final String TARGET_NAME = "directio.sequence_file"; //$NON-NLS-1$
@Override
public String getTargetName() {
return TARGET_NAME;
}
@Override
public void process(DmdlSemantics environment, ModelDeclaration declaration, AstAttribute attribute) {
Map<String, AstAttributeElement> elements = AttributeUtil.getElementMap(attribute);
Configuration conf = analyzeConfig(environment, attribute, elements);
if (conf != null) {
declaration.putTrait(SequenceFileFormatTrait.class, new SequenceFileFormatTrait(attribute, conf));
}
}
private Configuration analyzeConfig(
DmdlSemantics environment,
AstAttribute attribute,
Map<String, AstAttributeElement> elements) {
assert environment != null;
assert attribute != null;
assert elements != null;
Configuration result = new Configuration();
return result;
}
}