/*
* Copyright 2011 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.fluent.test.impl;
import java.util.HashMap;
import java.util.Map;
import org.drools.command.Context;
import org.drools.fluent.test.ReflectiveMatcher;
import org.drools.fluent.test.ReflectiveMatcherAssert;
import org.hamcrest.Matcher;
import org.mvel2.MVEL;
import org.mvel2.ParserContext;
public class ReflectiveMatcherAssertImpl implements ReflectiveMatcherAssert {
private String actual;
private String text;
private ReflectiveMatcherImpl matcher;
private ReflectiveMatcherFactory factory;
public ReflectiveMatcherAssertImpl() {
}
public ReflectiveMatcherAssertImpl(String text,
ReflectiveMatcherFactory factory) {
this.text = text;
this.factory = factory;
}
public ReflectiveMatcherAssertImpl(String actual,
ReflectiveMatcher matcher,
ReflectiveMatcherFactory factory) {
this.actual = actual;
this.matcher = ( ReflectiveMatcherImpl ) matcher;
this.factory = factory;
}
public String getActual() {
return actual;
}
public void setActual(String actual) {
this.actual = actual;
}
public ReflectiveMatcher getMatcher() {
return matcher;
}
public void setReflectiveMatcher(ReflectiveMatcher matcher) {
this.matcher = ( ReflectiveMatcherImpl ) matcher;
}
public <T> Matcher<T> build(Class<T> cls) {
return null;
}
public void eval(Context context) {
StringBuilder sbuilder = new StringBuilder();
for( String str : factory.getStaticImports() ) {
sbuilder.append( "import_static " );
sbuilder.append( str );
sbuilder.append( ";\n" );
}
sbuilder.append( "assertThat(" );
if ( text != null ) {
sbuilder.append( text );
} else {
sbuilder.append( actual );
sbuilder.append( ", " );
matcher.build( sbuilder );
}
sbuilder.append( ")" );
sbuilder.append( ";\n" );
ParserContext pctx = new ParserContext();
//pctx.setStrongTyping( true );
String t = sbuilder.toString();
//System.out.println( t );
ParserContext parserCtx = new ParserContext( );
MVEL.compileExpression( t, parserCtx );
Map<String, Class> inputs = parserCtx.getInputs();
Map<String, Object> vars = new HashMap<String, Object>();
for ( String name : inputs.keySet() ) {
vars.put( name, context.get( name ) );
}
try {
Object o = MVEL.compileExpression( sbuilder.toString(), pctx );
MVEL.executeExpression( o, vars );
} catch( Exception e ) {
// Try and unwrapp to the hamcrest assertion error if we can, else rethrwo the original mvel error
Throwable unwrapped = e.getCause();
if ( unwrapped != null && unwrapped.getCause() != null ) {
unwrapped = unwrapped.getCause();
}
if ( unwrapped instanceof AssertionError) {
throw (AssertionError)e.getCause().getCause();
} else if ( e instanceof RuntimeException ){
throw (RuntimeException) e;
}
}
}
}