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 *
 * 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
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package mod._scripting;

import java.io.File;
import java.io.FileReader;
import java.io.BufferedReader;
import java.io.IOException;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.StringTokenizer;

import lib.TestEnvironment;
import lib.Parameters;

public class TestDataLoader {

    private TestDataLoader() {
    }

    public static void setupData(TestEnvironment tEnv, String name) {
        String filename =
            util.utils.getFullTestDocName("testdata");
        File testdatadir = new File(filename);
        File f = new File(testdatadir, name + ".csv");

        if (!f.exists())
            return;

        BufferedReader in;

        try {
            in = new BufferedReader(new FileReader(f));

            String s, previous, current;
            ArrayList list = new ArrayList(11);

            if ((s = in.readLine()) != null) {
                StringTokenizer st = new StringTokenizer(s, ";");

                current = previous = st.nextToken();
                list.add(getParameters(st));
            }
            else {
                return;
            }

            while ((s = in.readLine()) != null) {
                StringTokenizer st = new StringTokenizer(s, ";");

                current = st.nextToken();

                if (!current.equals(previous)) {
                    tEnv.addObjRelation(previous, list);
                    previous = current;
                    list = new ArrayList(11);
                }

                list.add(getParameters(st));
            }

            tEnv.addObjRelation(previous, list);
        }
        catch (IOException ioe) {
        }
    }

    private static Parameters getParameters(StringTokenizer st) {
        String separator = "=";
        HashMap map = new HashMap(5);

        while (st.hasMoreTokens()) {
            String pair = st.nextToken();
            StringTokenizer tokens = new StringTokenizer(pair, separator);

            String name;
            String value;

            if (tokens.countTokens() < 2)
                continue;

            name = tokens.nextToken();
            if (tokens.countTokens() == 1)
                value = tokens.nextToken();
            else {
                StringBuffer buf = new StringBuffer(tokens.nextToken());
                while (tokens.hasMoreTokens())
                    buf.append(separator).append(tokens.nextToken());
                value = buf.toString();
            }

            map.put(name, value);
        }

        return new Parameters(map);
    }
}