/*
 * 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.core;

import java.io.PrintStream;
import java.io.PrintWriter;

import freemarker.template.TemplateException;

/**
 * This exception is thrown when a <tt>#stop</tt> directive is encountered. 
 */
public class StopException extends TemplateException {
    
    StopException(Environment env) {
        super(env);
    }

    StopException(Environment env, String s) {
        super(s, env);
    }

    @Override
    public void printStackTrace(PrintWriter pw) {
        synchronized (pw) {
            String msg = this.getMessage();
            pw.print("Encountered stop instruction");
            if (msg != null && !msg.equals("")) {
                pw.println("\nCause given: " + msg);
            } else pw.println();
            super.printStackTrace(pw);
        }
    }

    @Override
    public void printStackTrace(PrintStream ps) {
        synchronized (ps) {
            String msg = this.getMessage();
            ps.print("Encountered stop instruction");
            if (msg != null && !msg.equals("")) {
                ps.println("\nCause given: " + msg);
            } else ps.println();
            super.printStackTrace(ps);
        }
    }
    
}