/**
* 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.HashMap;
import java.util.List;
import java.util.Map;
import org.drools.common.InternalFactHandle;
import org.mvel2.MVEL;
public class WithStep
implements
Step {
public WithStep(ReteTesterHelper reteTesterHelper) {
}
@SuppressWarnings("unchecked")
public void execute(Map<String, Object> context,
List<String[]> args) {
List<InternalFactHandle> handles = (List<InternalFactHandle>) context.get( "Handles" );
Map<String, Object> vars = new HashMap<String, Object>();
vars.put( "h",
handles );
if ( args.size() >= 1 ) {
for ( String[] str : args ) {
String handle = fixHandles( str[0] );
StringBuilder builder = new StringBuilder();
builder.append( "with( " + handle + ".object ) { " );
for ( int i = 1; i < str.length; i++ ) {
if ( i > 1 ) {
builder.append( ", " );
}
builder.append( fixHandles( str[i] ) );
}
builder.append( "}" );
try {
MVEL.eval( builder.toString(),
vars );
} catch ( Exception e ) {
throw new IllegalArgumentException( "Cannot execute arguments: " + Arrays.toString( str ) );
}
}
} else {
throw new IllegalArgumentException( "Cannot execute arguments " + args );
}
}
private String fixHandles(String p) {
return p.replaceAll( "h(\\d+)",
"h[$1]" ).trim();
}
}