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/***** BEGIN LICENSE BLOCK *****
 * Version: CPL 1.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Common Public
 * License Version 1.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.eclipse.org/legal/cpl-v10.html
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the CPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the CPL, the GPL or the LGPL.
 ***** END LICENSE BLOCK *****/
package org.jruby.runtime.profile;

import java.util.ArrayList;

public class MethodData extends InvocationSet {
    public int serialNumber;

    public MethodData(int serial) {
        this.serialNumber = serial;
        this.invocations = new ArrayList();
    }

    private static class IntList {

        private int[] ints = new int[10];
        private int size;

        public void add(int i) {
            if (size == ints.length) {
                int[] newInts = new int[(int) (ints.length * 1.5 + 1)];
                System.arraycopy(ints, 0, newInts, 0, ints.length);
                ints = newInts;
            }
            ints[size++] = i;
        }

        public boolean contains(int i) {
            for (int j = 0; j < size; j++) {
                if (ints[j] == i) {
                    return true;
                }
            }
            return false;
        }

        public int[] toIntArray() {
            int[] newInts = new int[size];
            System.arraycopy(ints, 0, newInts, 0, size);
            return newInts;
        }
    }

    public int[] parents() {
        IntList p = new IntList();
        for (Invocation inv : invocations) {
            if (inv.getParent() != null) {
                int serial = inv.getParent().getMethodSerialNumber();
                if (!p.contains(serial)) {
                    p.add(serial);
                }
            }
        }
        return p.toIntArray();
    }

    public int[] children() {
        IntList p = new IntList();
        for (Invocation inv : invocations) {
            for (Integer childSerial : inv.getChildren().keySet()) {
                if (!p.contains(childSerial)) {
                    p.add(childSerial);
                }
            }
        }
        return p.toIntArray();
    }

    public InvocationSet invocationsForParent(int parentSerial) {
        ArrayList p = new ArrayList();
        for (Invocation inv : invocations) {
            int serial = inv.getParent().getMethodSerialNumber();
            if (serial == parentSerial) {
                p.add(inv.getParent());
            }
        }
        return new InvocationSet(p);
    }

    public InvocationSet rootInvocationsFromParent(int parentSerial) {
        ArrayList p = new ArrayList();
        for (Invocation inv : invocations) {
            int serial = inv.getParent().getMethodSerialNumber();
            if (serial == parentSerial && inv.getRecursiveDepth() == 1) {
                p.add(inv);
            }
        }
        return new InvocationSet(p);
    }

    public InvocationSet invocationsFromParent(int parentSerial) {
        ArrayList p = new ArrayList();
        for (Invocation inv : invocations) {
            int serial = inv.getParent().getMethodSerialNumber();
            if (serial == parentSerial) {
                p.add(inv);
            }
        }
        return new InvocationSet(p);
    }

    public InvocationSet rootInvocationsOfChild(int childSerial) {
        ArrayList p = new ArrayList();
        for (Invocation inv : invocations) {
            Invocation childInv = inv.getChildren().get(childSerial);
            if (childInv != null && childInv.getRecursiveDepth() == 1) {
                p.add(childInv);
            }
        }
        return new InvocationSet(p);
    }

    public InvocationSet invocationsOfChild(int childSerial) {
        ArrayList p = new ArrayList();
        for (Invocation inv : invocations) {
            Invocation childInv = inv.getChildren().get(childSerial);
            if (childInv != null) {
                p.add(childInv);
            }
        }
        return new InvocationSet(p);
    }

    @Override
    public long totalTime() {
        long t = 0;
        for (Invocation inv : invocations) {
            if (inv.getRecursiveDepth() == 1) {
                t += inv.getDuration();
            }
        }
        return t;
    }

    @Override
    public long childTime() {
        long t = 0;
        for (Invocation inv : invocations) {
            if (inv.getRecursiveDepth() == 1) {
                t += inv.childTime();
            }
        }
        return t;
    }
}