/*

 * Copyright (c) 2015, 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.

 */

package jdk.vm.ci.hotspot;

import jdk.vm.ci.code.CompilationRequest;

import jdk.vm.ci.code.CompilationRequestResult;

/**

 * HotSpot specific information about the result of a {@link CompilationRequest}.

 */

public final class HotSpotCompilationRequestResult implements CompilationRequestResult {

    /**

     * A user readable description of the failure.

     *

     * This field is read by the VM.

     */

    private final String failureMessage;

    /**

     * Whether this is a transient failure where retrying would help.

     *

     * This field is read by the VM.

     */

    private final boolean retry;

    /**

     * Number of bytecodes inlined into the compilation, exclusive of the bytecodes in the root

     * method.

     *

     * This field is read by the VM.

     */

    private final int inlinedBytecodes;

    private HotSpotCompilationRequestResult(String failureMessage, boolean retry, int inlinedBytecodes) {

        this.failureMessage = failureMessage;

        this.retry = retry;

        this.inlinedBytecodes = inlinedBytecodes;

    }

    @Override

    public Object getFailure() {

        return failureMessage;

    }

    /**

     * Creates a result representing a successful compilation.

     *

     * @param inlinedBytecodes number of bytecodes inlined into the compilation, exclusive of the

     *            bytecodes in the root method

     */

    public static HotSpotCompilationRequestResult success(int inlinedBytecodes) {

        return new HotSpotCompilationRequestResult(null, true, inlinedBytecodes);

    }

    /**

     * Creates a result representing a failed compilation.

     *

     * @param failureMessage a description of the failure

     * @param retry whether this is a transient failure where retrying may succeed

     */

    public static HotSpotCompilationRequestResult failure(String failureMessage, boolean retry) {

        return new HotSpotCompilationRequestResult(failureMessage, retry, 0);

    }

    public String getFailureMessage() {

        return failureMessage;

    }

    public boolean getRetry() {

        return retry;

    }

    public int getInlinedBytecodes() {

        return inlinedBytecodes;

    }

}