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package nsk.jdi.ObjectReference.invokeMethod;

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

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

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

/**
 * The test checks that the JDI method:<br>
 * <code>com.sun.jdi.ObjectReference.invokeMethod()</code>
 * properly throws <i>IllegalArgumentException</i>, when debugger
 * part of the test attempts to invoke several debuggee methods
 * which are not members of an object's class and:
 * <li>declared non-public (access by default) from outside the package
 * <li>declared protected from outside the package
 * <li>finally, declared private from outside the package.
 */
public class invokemethod014 {
    static final String DEBUGGEE_CLASSES[] = {
        "nsk.jdi.ObjectReference.invokeMethod.invokemethod014t",
        "nsk.jdi.ObjectReference.invokeMethod.invokemethod014tDummySuperClass",
        "nsk.jdi.ObjectReference.dummyPackage.invokemethod014a"
    };

    // name of debuggee main thread
    static final String DEBUGGEE_THRNAME = "invokemethod014tThr";

    // debuggee source line where it should be stopped
    static final int DEBUGGEE_STOPATLINE = 74;

    // debuggee local var used to find needed stack frame
    static final String DEBUGGEE_LOCALVAR =
        "invokemethod014tdummyCls";

    // tested debuggee methods with different kind of access,
    // and their type reference numbers
    static final int METH_NUM = 30;
    static final String DEBUGGEE_METHODS[][] = {
        {"byteMeth", "2", "non-public"},
        {"shortMeth", "2", "non-public"},
        {"intMeth", "2", "non-public"},
        {"longMeth", "2", "non-public"},
        {"floatMeth", "2", "non-public"},
        {"doubleMeth", "2", "non-public"},
        {"charMeth", "2", "non-public"},
        {"booleanMeth", "2", "non-public"},
        {"strMeth", "2", "non-public"},
        {"voidMeth", "2", "non-public"},
        {"protByteMeth", "2", "protected"},
        {"protShortMeth", "2", "protected"},
        {"protIntMeth", "2", "protected"},
        {"protLongMeth", "2", "protected"},
        {"protFloatMeth", "2", "protected"},
        {"protDoubleMeth", "2", "protected"},
        {"protCharMeth", "2", "protected"},
        {"protBooleanMeth", "2", "protected"},
        {"protStrMeth", "2", "protected"},
        {"protVoidMeth", "2", "protected"},
        {"privByteMeth", "2", "private"},
        {"privShortMeth", "2", "private"},
        {"privIntMeth", "2", "private"},
        {"privLongMeth", "2", "private"},
        {"privFloatMeth", "2", "private"},
        {"privDoubleMeth", "2", "private"},
        {"privCharMeth", "2", "private"},
        {"privBooleanMeth", "2", "private"},
        {"privStrMeth", "2", "private"},
        {"privVoidMeth", "2", "private"}
    };

    static final int ATTEMPTS = 5;
    static final int DELAY = 400; // in milliseconds

    static final String COMMAND_READY = "ready";
    static final String COMMAND_GO = "go";
    static final String COMMAND_QUIT = "quit";

    private ArgumentHandler argHandler;
    private Log log;
    private IOPipe pipe;
    private Debugee debuggee;
    private VirtualMachine vm;
    private BreakpointRequest BPreq;
    private volatile int tot_res = Consts.TEST_PASSED;
    private volatile boolean gotEvent = false;

    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) {
        return new invokemethod014().runIt(argv, out);
    }

    private int runIt(String args[], PrintStream out) {
        argHandler = new ArgumentHandler(args);
        log = new Log(out, argHandler);
        Binder binder = new Binder(argHandler, log);
        String cmd;
        ObjectReference objRef = null;

        debuggee = binder.bindToDebugee(DEBUGGEE_CLASSES[0]);
        pipe = debuggee.createIOPipe();
        vm = debuggee.VM();
        debuggee.redirectStderr(log, "invokemethod014t.err> ");
        debuggee.resume();
        cmd = pipe.readln();
        if (!cmd.equals(COMMAND_READY)) {
            log.complain("TEST BUG: unknown debuggee command: " + cmd);
            tot_res = Consts.TEST_FAILED;
            return quitDebuggee();
        }

        try {
            ReferenceType[] rType = new ReferenceType[3];
            // debuggee main & dummy classes
            rType[0] = debuggee.classByName(DEBUGGEE_CLASSES[0]);
            rType[1] = debuggee.classByName(DEBUGGEE_CLASSES[1]);
            rType[2] = debuggee.classByName(DEBUGGEE_CLASSES[2]);

            ThreadReference thrRef =
                debuggee.threadByFieldName(rType[0], "testThread", DEBUGGEE_THRNAME);
            if (thrRef == null) {
                log.complain("TEST FAILURE: method Debugee.threadByFieldName() returned null for debuggee thread "
                             + DEBUGGEE_THRNAME);
                tot_res = Consts.TEST_FAILED;
                return quitDebuggee();
            }

// Check the tested assersion
            suspendAtBP(rType[0], DEBUGGEE_STOPATLINE);
            objRef = findObjRef(thrRef, DEBUGGEE_LOCALVAR);

            for (int i=0; i<METH_NUM; i++) {
                // get reference type # from DEBUGGEE_METHODS[i][1]
                int typeIndex = Integer.parseInt(DEBUGGEE_METHODS[i][1]);
                List methList = rType[typeIndex].methodsByName(DEBUGGEE_METHODS[i][0]);
                if (methList.isEmpty()) {
                    log.complain("TEST FAILURE: the expected debuggee method \""
                        + DEBUGGEE_METHODS[i][0]
                        + "\" not found through the JDI method ReferenceType.methodsByName()");
                    tot_res = Consts.TEST_FAILED;
                    continue;
                }
                Method meth = (Method) methList.get(0);
                String methInfo = DEBUGGEE_METHODS[i][2] + " method \"" + meth.name()
                        + " " + meth.signature() + "\""
                        + new String((typeIndex==1)? "" : " from outside package");

                try {
                    log.display("\nTrying to invoke " + methInfo
                        + "\n\tgot from reference type \"" + rType[typeIndex]
                        + "\"\n\tusing the debuggee object reference \""
                        + objRef + "\" ...");

                    objRef.invokeMethod(thrRef, meth, Collections.<Value>emptyList(), 0);

                    log.complain("TEST FAILED: expected IllegalArgumentException was not thrown"
                        + "\n\twhen attempted to invoke " + methInfo
                        + "\n\tgot from reference type \"" + rType[typeIndex]
                        + "\"\n\tusing the debuggee object reference \""
                        + objRef + "\"");
                    tot_res = Consts.TEST_FAILED;
                } catch (IllegalArgumentException ia) {
                    log.display("CHECK PASSED: caught expected " + ia);
                } catch (Exception ee) {
                    ee.printStackTrace();
                    log.complain("TEST FAILED: ObjectReference.invokeMethod(): caught unexpected "
                        + ee + "\n\tinstead of expected llegalArgumentException"
                        + "\n\twhen attempted to invoke " + methInfo
                        + "\n\tgot from reference type \"" + rType[typeIndex]
                        + "\"\n\tusing the debuggee object reference \""
                        + objRef + "\"");
                    tot_res = Consts.TEST_FAILED;
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
            log.complain("TEST FAILURE: caught unexpected exception: " + e);
            tot_res = Consts.TEST_FAILED;
        }

// Finish the test
        return quitDebuggee();
    }

    private ObjectReference findObjRef(ThreadReference thrRef, String varName) {
        try {
            List frames = thrRef.frames();
            Iterator iter = frames.iterator();
            while (iter.hasNext()) {
                StackFrame stackFr = (StackFrame) iter.next();
                try {
                    LocalVariable locVar = stackFr.visibleVariableByName(varName);
                    if (locVar == null) continue;

                    // dummy debuggee class
                    return (ObjectReference)stackFr.getValue(locVar);
                } catch(AbsentInformationException e) {
                    // this is not needed stack frame, ignoring
                } catch(NativeMethodException ne) {
                    // current method is native, also ignoring
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            tot_res = Consts.TEST_FAILED;
            throw new Failure("findObjRef: caught unexpected exception: " + e);
        }
        throw new Failure("findObjRef: needed debuggee stack frame not found");
    }

    private BreakpointRequest setBP(ReferenceType refType, int bpLine) {
        EventRequestManager evReqMan =
            debuggee.getEventRequestManager();
        Location loc;

        try {
            List locations = refType.allLineLocations();
            Iterator iter = locations.iterator();
            while (iter.hasNext()) {
                loc = (Location) iter.next();
                if (loc.lineNumber() == bpLine) {
                    BreakpointRequest BPreq =
                        evReqMan.createBreakpointRequest(loc);
                    log.display("created " + BPreq + "\n\tfor " + refType
                        + " ; line=" + bpLine);
                    return BPreq;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new Failure("setBP: caught unexpected exception: " + e);
        }
        throw new Failure("setBP: location corresponding debuggee source line "
            + bpLine + " not found");
    }

    private void suspendAtBP(ReferenceType rType, int bpLine) {

        /**
         * This is a class containing a critical section which may lead to time
         * out of the test.
         */
        class CriticalSection extends Thread {
            public volatile boolean waitFor = true;

            public void run() {
                try {
                    do {
                        EventSet eventSet = vm.eventQueue().remove(DELAY);
                        if (eventSet != null) { // it is not a timeout
                            EventIterator it = eventSet.eventIterator();
                            while (it.hasNext()) {
                                Event event = it.nextEvent();
                                if (event instanceof VMDisconnectEvent) {
                                    log.complain("TEST FAILED: unexpected VMDisconnectEvent");
                                    break;
                                } else if (event instanceof VMDeathEvent) {
                                    log.complain("TEST FAILED: unexpected VMDeathEvent");
                                    break;
                                } else if (event instanceof BreakpointEvent) {
                                    if (event.request().equals(BPreq)) {
                                        log.display("expected Breakpoint event occured: "
                                            + event.toString());
                                        gotEvent = true;
                                        return;
                                    }
                                } else
                                    log.display("following JDI event occured: "
                                        + event.toString());
                            }
                        }
                    } while(waitFor);
                    log.complain("TEST FAILED: no expected Breakpoint event");
                    tot_res = Consts.TEST_FAILED;
                } catch (Exception e) {
                    e.printStackTrace();
                    tot_res = Consts.TEST_FAILED;
                    log.complain("TEST FAILED: caught unexpected exception: " + e);
                }
            }
        }
/////////////////////////////////////////////////////////////////////////////

        BPreq = setBP(rType, bpLine);
        BPreq.enable();
        CriticalSection critSect = new CriticalSection();
        log.display("\nStarting potential timed out section:\n\twaiting "
            + (argHandler.getWaitTime())
            + " minute(s) for JDI Breakpoint event ...\n");
        critSect.start();
        pipe.println(COMMAND_GO);
        try {
            critSect.join((argHandler.getWaitTime())*60000);
            if (critSect.isAlive()) {
                critSect.waitFor = false;
                throw new Failure("timeout occured while waiting for Breakpoint event");
            }
        } catch (InterruptedException e) {
            critSect.waitFor = false;
            throw new Failure("TEST INCOMPLETE: InterruptedException occured while waiting for Breakpoint event");
        } finally {
            BPreq.disable();
        }
        log.display("\nPotential timed out section successfully passed\n");
        if (gotEvent == false)
            throw new Failure("unable to suspend debuggee thread at breakpoint");
    }

    private int quitDebuggee() {
        log.display("Resuming debuggee ...");
        vm.resume();
        pipe.println(COMMAND_QUIT);
        debuggee.waitFor();
        int debStat = debuggee.getStatus();
        if (debStat != (Consts.JCK_STATUS_BASE + Consts.TEST_PASSED)) {
            log.complain("TEST FAILED: debuggee process finished with status: "
                + debStat);
            tot_res = Consts.TEST_FAILED;
        } else
            log.display("\nDebuggee process finished with the status: "
                + debStat);

        return tot_res;
    }
}