/*

 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * 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).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * Results of running the JstatGcTool ("jstat -gc <pid>")

 *

 * Output example:

 * S0C    S1C    S0U    S1U      EC       EU        OC         OU       MC     MU    CCSC   CCSU   YGC     YGCT    FGC    FGCT    CGC    CGCT     GCT

 * 512.0  512.0   32.0   0.0   288768.0 168160.6  83968.0     288.1    4864.0 2820.3 512.0  279.7   18510 1559.208   0      0.000    0     0.0  1559.208

 *

 * Output description:

 * S0C     Current survivor space 0 capacity (KB).

 * S1C     Current survivor space 1 capacity (KB).

 * S0U     Survivor space 0 utilization (KB).

 * S1U     Survivor space 1 utilization (KB).

 * EC      Current eden space capacity (KB).

 * EU      Eden space utilization (KB).

 * OC      Current old space capacity (KB).

 * OU      Old space utilization (KB).

 * MC      Current metaspace capacity (KB).

 * MU      Metaspace utilization (KB).

 * CCSC    Compressed Class Space capacity

 * CCSU    Compressed Class Space utilization

 * YGC     Number of young generation GC Events.

 * YGCT    Young generation garbage collection time.

 * FGC     Number of full GC events.

 * FGCT    Full garbage collection time.

 * CGC     Concurrent Collections (STW phase)

 * CGCT    Concurrent Garbage Collection Time (STW phase)

 * GCT     Total garbage collection time.

 *

 */

package utils;

import common.ToolResults;

public class JstatGcResults extends JstatResults {

    public JstatGcResults(ToolResults rawResults) {

        super(rawResults);

    }

    /**

     * Checks the overall consistency of the results reported by the tool

     */

    @Override

    public void assertConsistency() {

        assertThat(getExitCode() == 0, "Unexpected exit code: " + getExitCode());

        float OC = getFloatValue("OC");

        float OU = getFloatValue("OU");

        assertThat(OU <= OC, "OU > OC (utilization > capacity)");

        float MC = getFloatValue("MC");

        float MU = getFloatValue("MU");

        assertThat(MU <= MC, "MU > MC (utilization > capacity)");

        float CCSC = getFloatValue("CCSC");

        float CCSU = getFloatValue("CCSU");

        assertThat(CCSU <= CCSC, "CCSU > CCSC (utilization > capacity)");

        float S0C = getFloatValue("S0C");

        float S0U = getFloatValue("S0U");

        assertThat(S0U <= S0C, "S0U > S0C (utilization > capacity)");

        float S1C = getFloatValue("S1C");

        float S1U = getFloatValue("S1U");

        assertThat(S1U <= S1C, "S1U > S1C (utilization > capacity)");

        float EC = getFloatValue("EC");

        float EU = getFloatValue("EU");

        assertThat(EU <= EC, "EU > EC (utilization > capacity)");

        int YGC = getIntValue("YGC");

        float YGCT = getFloatValue("YGCT");

        assertThat(YGCT >= 0, "Incorrect time value for YGCT");

        if (YGC > 0) {

            assertThat(YGCT > 0, "Number of young generation GC Events is " + YGC + ", but YGCT is 0");

        }

        float GCT = getFloatValue("GCT");

        assertThat(GCT >= 0, "Incorrect time value for GCT");

        assertThat(GCT >= YGCT, "GCT < YGCT (total garbage collection time < young generation garbage collection time)");

        if (CGC > 0) {

            assertThat(CGCT > 0, "Number of concurrent GC events is " + CGC + ", but CGCT is 0");

        }

        int FGC = getIntValue("FGC");

        float FGCT = getFloatValue("FGCT");

        assertThat(FGCT >= 0, "Incorrect time value for FGCT");

        if (FGC > 0) {

            assertThat(FGCT > 0, "Number of full GC events is " + FGC + ", but FGCT is 0");

        }

        assertThat(GCT >= FGCT, "GCT < YGCT (total garbage collection time < full generation garbage collection time)");

        assertThat(checkFloatIsSum(GCT, YGCT, CGCT, FGCT), "GCT != (YGCT + CGCT + FGCT) " + "(GCT = " + GCT + ", YGCT = " + YGCT

                + ", CGCT = " + CGCT + ", FGCT = " + FGCT + ", (YCGT + CGCT + FGCT) = " + (YGCT + CGCT + FGCT) + ")");

    }

}