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    /*
 * $Id: Tests.java d6756d6a2987 2013-06-10 [email protected] $
 * 
 * This file is part of the Object Modeling System (OMS),
 * 2007-2012, Olaf David and others, Colorado State University.
 *
 * OMS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 2.1.
 *
 * OMS is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with OMS.  If not, see .
 */
package oms3.dsl;

import groovy.lang.Closure;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.logging.Level;
import java.util.logging.Logger;
import ngmf.util.UnifiedParams;
import oms3.Access;
import oms3.ComponentAccess;
import oms3.ComponentException;
import oms3.annotations.*;

public class Tests extends AbstractSimulation {

    static final Logger log = Logger.getLogger("oms3.sim");
    List testCases = new ArrayList();

    class TestCase extends AbstractBuildableLeaf {

        String name;
        int count = 1;
        Closure pre;     // Closure
        Closure post;    // Closure
        String ignore = null;
        Throwable expected;
        long timeout = 0;
        boolean rangecheck = false;
        List data;

        public void setData(List data) {
            this.data = data;
        }

        public void setTimeout(long timeout) {
            if (timeout < 1) {
                throw new ComponentException("Illegal timeout value: " + timeout);
            }
            this.timeout = timeout;
        }

        public void setRangecheck(boolean rangecheck) {
            this.rangecheck = rangecheck;
        }

        public void setIgnore(String ignore) {
            this.ignore = ignore;
        }

        public void setExpected(Throwable expected) {
            this.expected = expected;
        }

        public void setName(String name) {
            this.name = name;
        }

        public void setCount(int count) {
            if (count < 1) {
                throw new ComponentException("Illegal number of test cases: " + count);
            }
            this.count = count;
        }

        public void setPre(Closure pre) {
            this.pre = pre;
        }

        public void setPost(Closure post) {
            this.post = post;
        }

        private String getTestName(int no) {
            return name != null ? name : ("test-" + no);
        }

        /**
         * 
         * @param testNo
         * @throws Exception 
         */
        private void run(int testNo) throws Exception {
            if (ignore!=null) {
                System.out.println(getTestName(testNo) + " [ignored: " + ignore + "]");
                return;
            }

           
            System.out.print(getTestName(testNo) + " ");

            // Path
            String libPath = model.getLibpath();
            if (libPath != null) {
                System.setProperty("jna.library.path", libPath);
                if (log.isLoggable(Level.CONFIG)) {
                    log.config("Setting jna.library.path to " + libPath);
                }
            }

            final Object comp = model.newModelComponent();
            if (log.isLoggable(Level.CONFIG)) {
                log.config("TL component " + comp);
            }

//            Map parameter = model.getParameter().getParams();
//            ComponentAccess.setInputData(parameter, comp, log);
//            UnifiedParams parameter = model.getParameter();
//            parameter.setInputData(comp, log);

            List data_ins = null;
//            Map[] ps = null;
            UnifiedParams[] ps = null;

            int numruns = count;

            if (data != null) {
                data_ins = getfromData(data, comp);
                numruns = data.size() / data_ins.size() - 1;
                ps = getParamsets(data_ins, data);
            }

            for (int i = 0; i < numruns; i++) {
                if (log.isLoggable(Level.INFO)) {
                    log.info("Test ... " + i);
                }

                try {
                    if (data != null) {
//                        ComponentAccess.setInputData(ps[i], comp, log);
                        ps[i].setInputData(comp, log);
                    }

                    if (pre != null) {
                        if (log.isLoggable(Level.INFO)) {
                            log.info(" Pre ...");
                        }
                        pre.call(comp);
                    }
                    
                    /////////////// Init
                    if (log.isLoggable(Level.INFO)) {
                        log.info(" Init ...");
                    }
                    ComponentAccess.callAnnotated(comp, Initialize.class, true);

                    if (rangecheck) {
                        ComponentAccess.rangeCheck(comp, true, false);
                    }

                    ///////////////  Execute 
                    if (log.isLoggable(Level.INFO)) {
                        log.info(" Execute ...");
                    }
                    if (timeout > 0) {
                        // with execution timeout
                        ExecutorService service = Executors.newSingleThreadExecutor();
                        Callable callable = new Callable() {

                            @Override
                            public Object call() throws Exception {
                                ComponentAccess.callAnnotated(comp, Execute.class, false);
                                return null;
                            }
                        };
                        Future result = service.submit(callable);
                        service.shutdown();
                        boolean terminated = service.awaitTermination(timeout, TimeUnit.MILLISECONDS);
                        if (!terminated) {
                            service.shutdownNow();
                        }
                        result.get(0, TimeUnit.MILLISECONDS); // throws the exception if one occurred during the invocation
                    } else {
                        // no execution timeout.
                        ComponentAccess.callAnnotated(comp, Execute.class, false);
                    }

                    if (rangecheck) {
                        ComponentAccess.rangeCheck(comp, false, true);
                    }

                    /////////////////// Finalize
                    if (log.isLoggable(Level.INFO)) {
                        log.info(" Finalize ...");
                    }
                    ComponentAccess.callAnnotated(comp, Finalize.class, true);

                } catch (TimeoutException e) {
                    throw new ComponentException(String.format(getTestName(testNo) + " timed out after %d milliseconds", timeout));
                } catch (ComponentException e) {
                    throw e;
                } catch (Throwable E) {
                    if (expected != null) {
                        if (E.getClass() != expected.getClass()) {
                            throw new ComponentException("Expected " + expected + " but caught " + E);
                        }
                    } else {
                        throw new ComponentException(E, comp);
                    }
                }

                if (expected != null) {
                    // should not happen since we expect a component exception.
                    throw new ComponentException("Expected :" + expected);
                }

                if (post != null) {
                    if (log.isLoggable(Level.INFO)) {
                        log.info(" Post ...");
                    }
                    post.call(comp);
                }
                System.out.print(".");
            }
            System.out.println();
        }
    }

    @Override
    public Buildable create(Object name, Object value) {
        if (name.equals("test")) {
            TestCase tc = new TestCase();
            testCases.add(tc);
            return tc;
        }
        return super.create(name, value);
    }

    @Override
    public Object run() throws Exception {
        if (testCases.isEmpty()) {
            throw new ComponentException("No test(s) to run.");
        }
        for (int i = 0; i < testCases.size(); i++) {
            testCases.get(i).run(i);
        }
        return null;
    }

    // static methods
    private static List getfromData(List data, Object comp) {
        List l = new ArrayList();
        ComponentAccess cp = new ComponentAccess(comp);
        Collection ins = cp.inputs();
        for (int i = 0; i < data.size(); i++) {
            if (data.get(i) instanceof String) {
                String name = data.get(i).toString();  // cover GString
                Access a = findAccessByName(name, ins);
                if (a != null) {
                    l.add(a.getField().getName());
                } else {
                    return l;
                }
            } else {
                return l;
            }
        }
        return l;
    }

    private static Access findAccessByName(String name, Collection ins) {
        for (Access access : ins) {
            if (name.equals(access.getField().getName())) {
                return access;
            }
        }
        return null;
    }

    private static UnifiedParams[] getParamsets(List fnames, List data) {
        int cols = fnames.size();
        if (cols<1) {
            throw new ComponentException("no field mapping information for test data");
        }
        int rows = (data.size() / fnames.size()) - 1;
        if (rows < 1) {
            throw new ComponentException("no test data provided.");
        }
        int idx = cols;   // skip the header

//        Map[] ps = new HashMap[rows];
        UnifiedParams[] ps = new UnifiedParams[rows];
        
        for (int r = 0; r < rows; r++) {
            HashMap hm = new HashMap();
            for (int c = 0; c < cols; c++) {
                hm.put(fnames.get(c), data.get(idx++));
                if (idx > data.size()) {
                    throw new ComponentException("Invalid test parameter set, check the data size.");
                }
            }
            ps[r] = new UnifiedParams(hm);
        }
        return ps;
    }
}
    
    
    
    

    




    
    
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