/**
* 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.analyzer.driver;
import java.util.Map;
import com.asakusafw.dmdl.Diagnostic;
import com.asakusafw.dmdl.Diagnostic.Level;
import com.asakusafw.dmdl.model.AstAttribute;
import com.asakusafw.dmdl.model.AstAttributeElement;
import com.asakusafw.dmdl.model.AstName;
import com.asakusafw.dmdl.semantics.DmdlSemantics;
import com.asakusafw.dmdl.semantics.ModelDeclaration;
import com.asakusafw.dmdl.semantics.trait.NamespaceTrait;
import com.asakusafw.dmdl.spi.ModelAttributeDriver;
import com.asakusafw.dmdl.util.AttributeUtil;
/**
* Processes <code>@namespace</code> annotations.
<h2>'@namespace' attribute</h2>
The attributed declaration must be:
<ul>
<li> a model attribute </li>
</ul>
*/
public class NamespaceDriver extends ModelAttributeDriver {
/**
* The attribute name.
*/
public static final String TARGET_NAME = "namespace"; //$NON-NLS-1$
/**
* The element name.
*/
public static final String ELEMENT_NAME = "value"; //$NON-NLS-1$
@Override
public String getTargetName() {
return TARGET_NAME;
}
@Override
public void process(
DmdlSemantics environment,
ModelDeclaration declaration,
AstAttribute attribute) {
AstName name = getName(environment, attribute);
if (name != null) {
declaration.putTrait(
NamespaceTrait.class,
new NamespaceTrait(attribute, name));
}
}
private AstName getName(DmdlSemantics environment, AstAttribute attribute) {
assert environment != null;
assert attribute != null;
Map<String, AstAttributeElement> elements = AttributeUtil.getElementMap(attribute);
AstAttributeElement nameElement = elements.remove(ELEMENT_NAME);
environment.reportAll(AttributeUtil.reportInvalidElements(attribute, elements.values()));
if (nameElement == null) {
environment.report(new Diagnostic(
Level.ERROR,
attribute.name,
Messages.getString("NamespaceDriver.diagnosticMissingElement"), //$NON-NLS-1$
TARGET_NAME,
ELEMENT_NAME));
return null;
} else if ((nameElement.value instanceof AstName) == false) {
environment.report(new Diagnostic(
Level.ERROR,
nameElement,
Messages.getString("NamespaceDriver.diagnosticInvalidNameElement"), //$NON-NLS-1$
TARGET_NAME,
ELEMENT_NAME));
return null;
} else {
return (AstName) nameElement.value;
}
}
}