/*
* Copyright 2010 JBoss Inc
*
* 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 org.drools.reteoo.test.dsl;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import org.drools.base.ArrayElements;
import org.drools.base.ClassFieldAccessorStore;
import org.drools.base.ClassObjectType;
import org.drools.base.DroolsQuery;
import org.drools.base.extractors.ArrayElementReader;
import org.drools.base.extractors.MVELObjectClassFieldReader;
import org.drools.base.extractors.SelfReferenceClassFieldReader;
import org.drools.rule.Declaration;
import org.drools.rule.Pattern;
import org.drools.spi.InternalReadAccessor;
public class BindingStep
implements
Step {
private ReteTesterHelper reteTesterHelper;
public BindingStep(ReteTesterHelper reteTesterHelper) {
this.reteTesterHelper = reteTesterHelper;
}
public void execute(Map<String, Object> context,
List<String[]> args) {
if ( args.size() > 0 ) {
for( String[] bind : args ) {
if ( bind.length == 4 || bind.length == 5) {
createBinding( context,
bind );
} else {
throw new IllegalArgumentException( "Cannot create Binding for arguments: " + Arrays.toString( bind ) );
}
}
} else {
throw new IllegalArgumentException( "Cannot arguments " + args );
}
}
private void createBinding(Map<String, Object> context,
String[] bind ) {
String name = bind[0];
String index = bind[1];
String type = bind[2];
String field = bind[3];
String cast = null;
if ( bind.length == 5 ) {
cast = bind[4];
}
try {
Pattern pattern = reteTesterHelper.getPattern( Integer.parseInt( index ),
type );
ClassFieldAccessorStore store = (ClassFieldAccessorStore) context.get( "ClassFieldAccessorStore" );
InternalReadAccessor extractor = null;
if ( field.startsWith( "[" ) ) {
extractor = store.getReader( ArrayElements.class,
"elements",
getClass().getClassLoader() );
extractor = new ArrayElementReader( extractor,
Integer.parseInt( field.substring( 1, field.length() -1 ) ),
reteTesterHelper.getTypeResolver().resolveType( cast ) );
} else {
extractor = store.getReader( reteTesterHelper.getTypeResolver().resolveType( type ),
field,
getClass().getClassLoader() );
}
Declaration declr = new Declaration( name,
extractor,
pattern );
context.put( name,
declr );
} catch ( Exception e ) {
throw new IllegalArgumentException( "Cannot create Binding for arguments: " + Arrays.toString( bind ),
e );
}
}
}