/*
 * 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.pluto.testsuite;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.digester.Digester;
import org.xml.sax.SAXException;

/**
 * Test configuration factory that reads and parses testsuite config file using
 * Digester and constructs <code>TestConfig</code> objects.
 *
 * @see TestConfig
 *
 */
public class TestConfigFactory {

	/** Digester instance used to parse testsuite config file. */
    private Digester digester = new Digester();


    // Constructor -------------------------------------------------------------

    /**
     * Creates a factory instance.
     */
    public TestConfigFactory() {
        digester = new Digester();
        digester.setClassLoader(Thread.currentThread().getContextClassLoader());
        digester.addObjectCreate("testportlet-config", ArrayList.class);


        digester.addObjectCreate("testportlet-config/testsuite-config",
                                 TestConfig.class);

        digester.addBeanPropertySetter("testportlet-config/testsuite-config/name",
                                       "name");
        digester.addBeanPropertySetter("testportlet-config/testsuite-config/class",
                                       "testClassName");
        digester.addBeanPropertySetter("testportlet-config/testsuite-config/display-uri",
                                       "displayURI");

        digester.addCallMethod("testportlet-config/testsuite-config/init-param", "addInitParameter", 2);
        digester.addCallParam("testportlet-config/testsuite-config/init-param/name", 0);
        digester.addCallParam("testportlet-config/testsuite-config/init-param/value", 1);

        digester.addCallMethod("testportlet-config/testsuite-config/action-param", "addActionParameter", 2);
        digester.addCallParam("testportlet-config/testsuite-config/action-param/name", 0);
        digester.addCallParam("testportlet-config/testsuite-config/action-param/value", 1);

        digester.addCallMethod("testportlet-config/testsuite-config/render-param", "addRenderParameter", 2);
        digester.addCallParam("testportlet-config/testsuite-config/render-param/name", 0);
        digester.addCallParam("testportlet-config/testsuite-config/render-param/value", 1);

        digester.addSetRoot("testportlet-config/testsuite-config", "add");

    }


    // Public Methods ----------------------------------------------------------

    /**
     * Reads and parses testsuite config file, creates a list of
     * <code>TestConfig</code> objects.
     *
     * @param in  the input stream of the testsuite config file.
     * @return a list of <code>TestConfig</code> objects.
     * @throws SAXException  if a parsing error occurs.
     * @throws IOException  if an IO error occurs.
     * @see TestConfig
     */
    @SuppressWarnings("unchecked")
	public List<TestConfig> createTestConfigs(InputStream in)
    throws SAXException, IOException {
        return (List<TestConfig>) digester.parse(in);
    }

}