/*
 *
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.apache.flex.compiler.ant.types;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DynamicAttribute;
import org.apache.tools.ant.types.Commandline;
import org.apache.tools.ant.types.FlexInteger;

import org.apache.flex.compiler.ant.config.IOptionSource;
import org.apache.flex.compiler.ant.config.OptionSpec;

/**
 * Implements <default-script-limits>.
 */
public class DefaultScriptLimits implements DynamicAttribute, IOptionSource
{
    public static final OptionSpec DEFAULT_SCRIPT_LIMITS = new OptionSpec("default-script-limits");

    private int maxRecursionDepth = -1;
    private int maxExecutionTime = -1;

    public void setDynamicAttribute(String name, String value)
    {
        int intVal = new FlexInteger(value).intValue();

        if (name.equals("max-recursion-depth"))
        {
            maxRecursionDepth = intVal;
        }
        else if (name.equals("max-execution-time"))
        {
            maxExecutionTime = intVal;
        }
        else
        {
            throw new BuildException("The <default-script-limits> type doesn't support the \""
                    + name + "\" attribute.");
        }
        
        if (intVal < 0)
            throw new BuildException(name + "attribute must be a positive integer!");
    }

    public void addToCommandline(Commandline cmdline)
    {
        if (maxRecursionDepth == -1)
        {
            throw new BuildException("max-recursion-depth attribute must be set!");
        }
        else if (maxExecutionTime == -1)
        {
            throw new BuildException("max-execution-time attribute must be set!");
        }
        else
        {
            cmdline.createArgument().setValue("-" + DEFAULT_SCRIPT_LIMITS.getFullName());
            cmdline.createArgument().setValue(String.valueOf(maxRecursionDepth));
            cmdline.createArgument().setValue(String.valueOf(maxExecutionTime));
        }
    }
}