/*

 * Copyright (c) 2009, 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 com.sun.hotspot.tools.compiler;

import java.util.Arrays;

import static com.sun.hotspot.tools.compiler.Constants.*;

/**

 * Representation of a Java method in a compilation log.

 */

public class Method {

    /**

     * The name of the class holding the method.

     */

    private String holder;

    /**

     * The method's name.

     */

    private String name;

    /**

     * The return type of the method, as a fully qualified (source-level) class

     * or primitive type name.

     */

    private String returnType;

    /**

     * The method's signature, in internal form.

     */

    private String signature;

    /**

     * The length of the method's byte code.

     */

    private String bytes;

    /**

     * The number of times this method was invoked in the interpreter.

     */

    private String iicount;

    /**

     * The method's flags, in the form of a {@code String} representing the

     * {@code int} encoding them.

     */

    private String flags;

    /**

     * Decode the {@link flags} numerical string to a format for console

     * output. The result does not honour all possible flags but includes

     * information about OSR compilation.

     *

     * @param osr_bci the byte code index at which an OSR compilation takes

     * place, or -1 if the compilation is not an OSR one.

     */

    String decodeFlags(int osr_bci) {

        int f = Integer.parseInt(getFlags());

        char[] c = new char[4];

        Arrays.fill(c, ' ');

        if (osr_bci >= 0) {

            c[0] = '%';

        }

        if ((f & JVM_ACC_SYNCHRONIZED) != 0) {

            c[1] = 's';

        }

        return new String(c);

    }

    /**

     * Format this method for console output.

     *

     * @param osr_bci the byte code index at which OSR takes place, or -1 if no

     * OSR compilation is going on.

     */

    String format(int osr_bci) {

        if (osr_bci >= 0) {

            return getHolder() + "::" + getName() + " @ " + osr_bci + " (" + getBytes() + " bytes)";

        } else {

            return getHolder() + "::" + getName() + " (" + getBytes() + " bytes)";

        }

    }

    @Override

    public String toString() {

        return getHolder() + "::" + getName() + " (" + getBytes() + " bytes)";

    }

    public String getFullName() {

        return getHolder().replace('/', '.') + "." + getName() + signature;

    }

    public String getHolder() {

        return holder;

    }

    public void setHolder(String holder) {

        this.holder = holder;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public String getReturnType() {

        return returnType;

    }

    public void setReturnType(String returnType) {

        this.returnType = returnType;

    }

    public String getSignature() {

        return signature;

    }

    public void setSignature(String signature) {

        this.signature = signature.replace('/', '.');

    }

    public String getArguments() {

        return signature.substring(0, signature.indexOf(')') + 1);

    }

    public String getBytes() {

        return bytes;

    }

    public void setBytes(String bytes) {

        this.bytes = bytes;

    }

    public String getIICount() {

        return iicount;

    }

    public void setIICount(String iicount) {

        this.iicount = iicount;

    }

    public String getFlags() {

        return flags;

    }

    public void setFlags(String flags) {

        this.flags = flags;

    }

    @Override

    public boolean equals(Object o) {

        if (o instanceof Method) {

            Method other = (Method) o;

            return holder.equals(other.holder) && name.equals(other.name) && signature.equals(other.signature);

        }

        return false;

    }

    public int hashCode() {

        return holder.hashCode() ^ name.hashCode();

    }

}