/*
 * Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
 * 
 * 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 freemarker.ext.ant;

import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;

import org.apache.tools.ant.BuildException;
import org.python.util.PythonInterpreter;

/**
 * Used internally, public for technical reasons only. 
 */
public class UnlinkedJythonOperationsImpl implements UnlinkedJythonOperations {
    
    public void execute(String script, Map vars) throws BuildException {
        PythonInterpreter pi = createInterpreter(vars);
        pi.exec(script);
    }

    public void execute(File file, Map vars) throws BuildException {
        PythonInterpreter pi = createInterpreter(vars);
        try {
            pi.execfile(file.getCanonicalPath());
        } catch (IOException e) {
            throw new BuildException(e);
        }
    }
    
    private PythonInterpreter createInterpreter(Map vars) {
        PythonInterpreter pi = new PythonInterpreter();
        Iterator it = vars.entrySet().iterator();
        while (it.hasNext()) {
            Map.Entry ent = (Map.Entry) it.next(); 
            pi.set((String) ent.getKey(), ent.getValue());
        }
        return pi;
    }
    
}