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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package nsk.jdi.BScenarios.singlethrd;

import nsk.share.*;
import nsk.share.jpda.*;
import nsk.share.jdi.*;

import com.sun.jdi.*;
import com.sun.jdi.request.*;
import com.sun.jdi.event.*;

import java.util.*;
import java.io.*;

/**
 * This test is from the group of so-called Borland's scenarios and
 * implements the following test case:
 *     Suite 1 - Breakpoints (single threads)
 *     Test case:      TC1
 *     Description:    Line breakpoint & step into
 *     Steps:          1.Set breakpoint on line 19
 *                     2.Debug Main
 *                       X. Stops on line 19
 *                     3.Run | Step into three times
 *                       X. Steps into Class1 constructor
 *
 * When the test is starting debugee, debugger sets breakpoint at
 * the 49th line (method <code>performTest</code>).
 * After the breakpoint is reached, debugger creates "step into" request
 * and resumes debugee. <code>StepRequest</code> is created with specified
 * <code>addClassExclusionFilter</code>. For the third <code>StepEvent</code>
 * debugger checks line number of one's location. It should be 56th line.
 *
 * In case, when line number of event is wrong, test fails.
 */

public class tc01x002 {

    public final static String SGL_READY = "ready";
    public final static String SGL_PERFORM = "perform";
    public final static String SGL_QUIT = "quit";

    private final static String prefix = "nsk.jdi.BScenarios.singlethrd.";
    private final static String debuggerName = prefix + "tc01x002";
    private final static String debugeeName = debuggerName + "a";

    private static int exitStatus;
    private static Log log;
    private static Debugee debugee;
    private static long waitTime;
    private final static int expectedStepEventCount = 3;
    private static int stepEventCount = 0;

    private ClassType debugeeClass;

    private static void display(String msg) {
        log.display(msg);
    }

    private static void complain(String msg) {
        log.complain("debugger FAILURE> " + msg + "\n");
    }

    public static void main(String argv[]) {
        int result = run(argv,System.out);
        if (result != 0) {
            throw new RuntimeException("TEST FAILED with result " + result);
        }
    }

    public static int run(String argv[], PrintStream out) {

        exitStatus = Consts.TEST_PASSED;

        tc01x002 thisTest = new tc01x002();

        ArgumentHandler argHandler = new ArgumentHandler(argv);
        log = new Log(out, argHandler);

        waitTime = argHandler.getWaitTime() * 60000;

        debugee = Debugee.prepareDebugee(argHandler, log, debugeeName);

        try {
            thisTest.execTest();
        } catch (Throwable e) {
            complain("Unexpected " + e);
            exitStatus = Consts.TEST_FAILED;
            e.printStackTrace();
        } finally {
            debugee.resume();
            debugee.quit();
        }
        display("Test finished. exitStatus = " + exitStatus);

        return exitStatus;
    }

    private void execTest() throws Failure {

        debugeeClass = (ClassType)debugee.classByName(debugeeName);

        display("\nTEST BEGINS");
        display("===========");

        display("Tested class\t:" + debugeeClass.name());

        EventSet eventSet = null;
        EventIterator eventIterator = null;
        Event event;
        long totalTime = waitTime;
        long tmp, begin = System.currentTimeMillis(),
             delta = 0;
        boolean exit = false;
        EventRequestManager evm = debugee.getEventRequestManager();
        StepRequest step = null;

        debugee.setBreakpoint(debugeeClass,
                                tc01x002a.brkpMethodName,
                                tc01x002a.brkpLineNumber);
        debugee.resume();
        debugee.sendSignal(SGL_PERFORM);

        while (totalTime > 0 && !exit) {
            if (eventIterator == null || !eventIterator.hasNext()) {
                try {
                    eventSet = debugee.VM().eventQueue().remove(totalTime);
                } catch (InterruptedException e) {
                    new Failure(e);
                }
                if (eventSet != null) {
                    eventIterator = eventSet.eventIterator();
                } else {
                    eventIterator = null;
                }
            }
            if (eventIterator != null) {
                while (eventIterator.hasNext()) {
                    event = eventIterator.nextEvent();
//                    display(" event ===>>> " + event);

                    if (event instanceof BreakpointEvent) {
                        display(" event ===>>> " + event);
                        hitBreakpoint((BreakpointEvent )event);
                        step = evm.createStepRequest(((BreakpointEvent )event).thread(),
                                                        StepRequest.STEP_LINE,
                                                        StepRequest.STEP_INTO);
                        step.addClassExclusionFilter("nsk.share.*");
                        step.addClassExclusionFilter("java.*");
                        step.addClassExclusionFilter("sun.*");
                        step.addClassExclusionFilter("oracle.*");
                        step.addClassExclusionFilter("jdk.jfr.*");
                        step.addClassExclusionFilter("com.oracle.*");
                        step.addClassExclusionFilter("jdk.internal.*");
                        step.enable();
                        debugee.resume();

                    } else if (event instanceof StepEvent) {
                        display(" event ===>>> " + event);
                        hitStepInto((StepEvent )event);
                        if (stepEventCount >= expectedStepEventCount) {
                            evm.deleteEventRequest(step);
                        }
                        debugee.resume();

                    } else if (event instanceof VMDeathEvent) {
                        exit = true;
                        break;
                    } else if (event instanceof VMDisconnectEvent) {
                        exit = true;
                        break;
                    } // if
                } // while
            } // if
            exit = exit || (stepEventCount == expectedStepEventCount);
            tmp = System.currentTimeMillis();
            delta = tmp - begin;
            totalTime -= delta;
                begin = tmp;
        }

        if (stepEventCount < expectedStepEventCount) {
            if (totalTime <= 0) {
                complain("out of wait time...");
            }
            complain("expecting " + expectedStepEventCount
                        + " step events, but "
                        + stepEventCount + " events arrived.");
            exitStatus = Consts.TEST_FAILED;
        }

        display("=============");
        display("TEST FINISHES\n");
    }

    private void hitBreakpoint(BreakpointEvent event) {
        display("BreakpointEvent arrived. Location - "
                    + event.location().lineNumber() + " line");
        display("");
    }

    private void hitStepInto(StepEvent event) {
        stepEventCount++;

        display("event info:");
        display("\tthread\t- " + event.thread().name());
        try {
            display("\tsource\t- " + event.location().sourceName());
        } catch (AbsentInformationException e) {
        }
        display("\tmethod\t- " + event.location().method().name());
        display("\tline\t- " + event.location().lineNumber());

        if (stepEventCount == expectedStepEventCount) {
            if (event.location().lineNumber() != tc01x002a.checkLastLine) {
                complain("StepEvent steps to line " + event.location().lineNumber()
                            + ", expected line number is "
                            + tc01x002a.checkLastLine);
                exitStatus = Consts.TEST_FAILED;
            } else {
                display("StepEvent steps to the expected line "
                            + event.location().lineNumber());
            }
        }
        display("");
    }
}