Java example source code file (MerlinMXBean.java)

This example Java source code file (MerlinMXBean.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

arraytype, character, compositetype, double, exoticcompositedata, getsetbean, getterinterface, graphmxbean, integer, node, opentype, short, simpletype, string, util

The MerlinMXBean.java Java example source code

/*
 * Copyright (c) 2005, 2006, 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.
 */

import java.util.Arrays;
import javax.management.openmbean.ArrayType;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeDataSupport;
import javax.management.openmbean.CompositeDataView;
import javax.management.openmbean.CompositeType;
import javax.management.openmbean.OpenDataException;
import javax.management.openmbean.OpenType;
import javax.management.openmbean.SimpleType;

public interface MerlinMXBean {

    int PInt = 59;
    SimpleType PIntType = SimpleType.INTEGER;
    int getPInt();
    void setPInt(int x);
    int opPInt(int x, int y);

    long PLong = Long.MAX_VALUE;
    SimpleType PLongType = SimpleType.LONG;
    long getPLong();
    void setPLong(long x);
    long opPLong(long x, long y);

    short PShort = 55;
    SimpleType PShortType = SimpleType.SHORT;
    short getPShort();
    void setPShort(short x);
    short opPShort(short x, short y);

    byte PByte = 13;
    SimpleType PByteType = SimpleType.BYTE;
    byte getPByte();
    void setPByte(byte x);
    byte opPByte(byte x, byte y);

    char PChar = 'x';
    SimpleType PCharType = SimpleType.CHARACTER;
    char getPChar();
    void setPChar(char x);
    char opPChar(char x, char y);

    float PFloat = 1.3f;
    SimpleType PFloatType = SimpleType.FLOAT;
    float getPFloat();
    void setPFloat(float x);
    float opPFloat(float x, float y);

    double PDouble = Double.MAX_VALUE;
    SimpleType PDoubleType = SimpleType.DOUBLE;
    double getPDouble();
    void setPDouble(double x);
    double opPDouble(double x, double y);

    boolean PBoolean = true;
    SimpleType PBooleanType = SimpleType.BOOLEAN;
    boolean getPBoolean();
    void setPBoolean(boolean x);
    boolean opPBoolean(boolean x, boolean y);

    Integer WInteger = new Integer(59);
    SimpleType WIntegerType = SimpleType.INTEGER;
    Integer getWInteger();
    void setWInteger(Integer x);
    Integer opWInteger(Integer x, Integer y);

    Long WLong = new Long(Long.MAX_VALUE);
    SimpleType WLongType = SimpleType.LONG;
    Long getWLong();
    void setWLong(Long x);
    Long opWLong(Long x, Long y);

    Short WShort = new Short(Short.MAX_VALUE);
    SimpleType WShortType = SimpleType.SHORT;
    Short getWShort();
    void setWShort(Short x);
    Short opWShort(Short x, Short y);

    Byte WByte = new Byte(Byte.MAX_VALUE);
    SimpleType WByteType = SimpleType.BYTE;
    Byte getWByte();
    void setWByte(Byte x);
    Byte opWByte(Byte x, Byte y);

    Character WCharacter = new Character('x');
    SimpleType WCharacterType = SimpleType.CHARACTER;
    Character getWCharacter();
    void setWCharacter(Character x);
    Character opWCharacter(Character x, Character y);

    Float WFloat = new Float(1.3f);
    SimpleType WFloatType = SimpleType.FLOAT;
    Float getWFloat();
    void setWFloat(Float x);
    Float opWFloat(Float x, Float y);

    Double WDouble = new Double(Double.MAX_VALUE);
    SimpleType WDoubleType = SimpleType.DOUBLE;
    Double getWDouble();
    void setWDouble(Double x);
    Double opWDouble(Double x, Double y);

    Boolean WBoolean = Boolean.TRUE;
    SimpleType WBooleanType = SimpleType.BOOLEAN;
    Boolean getWBoolean();
    void setWBoolean(Boolean x);
    Boolean opWBoolean(Boolean x, Boolean y);

    int[] PIntA = {2, 3, 5, 7, 11, 13};
    ArrayType PIntAType = ArrayTypeMaker.make(SimpleType.INTEGER, true);
    int[] getPIntA();
    void setPIntA(int[] x);
    int[] opPIntA(int[] x, int[] y);

    int[][] PInt2D = {{1, 2}, {3, 4}};
    ArrayType PInt2DType = ArrayTypeMaker.make(1, PIntAType);
    int[][] getPInt2D();
    void setPInt2D(int[][] x);
    int[][] opPInt2D(int[][] x, int[][] y);

    Integer[] WIntA = {new Integer(3), new Integer(5)};
    ArrayType WIntAType = ArrayTypeMaker.make(1, SimpleType.INTEGER);
    Integer[] getWIntA();
    void setWIntA(Integer[] x);
    Integer[] opWIntA(Integer[] x, Integer[] y);

    Integer[][] WInt2D = {{new Integer(3)}, {new Integer(5)}};
    ArrayType WInt2DType = ArrayTypeMaker.make(2, SimpleType.INTEGER);
    Integer[][] getWInt2D();
    void setWInt2D(Integer[][] x);
    Integer[][] opWInt2D(Integer[][] x, Integer[][] y);

    String XString = "yo!";
    SimpleType XStringType = SimpleType.STRING;
    String getXString();
    void setXString(String x);
    String opXString(String x, String y);

    String[] XStringA = {"hello", "world"};
    ArrayType XStringAType = ArrayTypeMaker.make(1, SimpleType.STRING);
    String[] getXStringA();
    void setXStringA(String[] x);
    String[] opXStringA(String[] x, String[] y);

    int[] NoInts = {};
    ArrayType NoIntsType = ArrayTypeMaker.make(SimpleType.INTEGER, true);
    int[] getNoInts();
    void setNoInts(int[] x);
    int[] opNoInts(int[] x, int[] y);

    GetSetBean GetSet = GetSetBean.make(5, "x", new String[] {"a", "b"});
    CompositeType GetSetType =
        CompositeTypeMaker.make(GetSetBean.class.getName(),
                                GetSetBean.class.getName(),
                                new String[] {"int", "string", "stringArray"},
                                new String[] {"int", "string", "stringArray"},
                                new OpenType[] {
                                    SimpleType.INTEGER,
                                    SimpleType.STRING,
                                    ArrayTypeMaker.make(1, SimpleType.STRING),
                                });
    GetSetBean getGetSet();
    void setGetSet(GetSetBean bean);
    GetSetBean opGetSet(GetSetBean x, GetSetBean y);

    GetterInterface Interface = new GetterInterface() {
        public boolean isWhatsit() {
            return true;
        }

        public int[] getInts() {
            return new int[] {1};
        }

        public String[] getStrings() {
            return new String[] {"x"};
        }

        public GetSetBean getGetSet() {
            return GetSetBean.make(3, "a", new String[] {"b"});
        }

        public boolean equals(Object o) {
            if (!(o instanceof GetterInterface))
                return false;
            GetterInterface i = (GetterInterface) o;
            return isWhatsit() == i.isWhatsit() &&
                   Arrays.equals(getInts(), i.getInts()) &&
                   Arrays.equals(getStrings(), i.getStrings()) &&
                   getGetSet().equals(i.getGetSet());
        }
     };
     CompositeType InterfaceType =
        CompositeTypeMaker.make(GetterInterface.class.getName(),
                                GetterInterface.class.getName(),
                                new String[] {
                                    "ints", "getSet", "strings", "whatsit",
                                },
                                new String[] {
                                    "ints", "getSet", "strings", "whatsit",
                                },
                                new OpenType[] {
                                    ArrayTypeMaker.make(SimpleType.INTEGER, true),
                                    GetSetType,
                                    ArrayTypeMaker.make(1, SimpleType.STRING),
                                    SimpleType.BOOLEAN,
                                });
     GetterInterface getInterface();
     void setInterface(GetterInterface i);
     GetterInterface opInterface(GetterInterface x, GetterInterface y);

    /* Testing that we can use a public no-arg constructor plus a setter
     * for every getter to reconstruct this object.  Note that the
     * constructor-guessing logic is no longer valid for this class,
     * so if we can reconstruct it it must be because of the setters.
     */
    public static class GetSetBean {
        public GetSetBean() {
            this(0, null, null);
        }

        private GetSetBean(int Int, String string, String[] stringArray) {
            this.Int = Int;
            this.string = string;
            this.stringArray = stringArray;
        }

        public static GetSetBean
                make(int Int, String string, String[] stringArray) {
            GetSetBean b = new GetSetBean(Int, string, stringArray);
            return b;
        }

        public int getInt() {
            return Int;
        }

        public String getString() {
            return this.string;
        }

        public String[] getStringArray() {
            return this.stringArray;
        }

        public void setInt(int x) {
            this.Int = x;
        }

        public void setString(String string) {
            this.string = string;
        }

        public void setStringArray(String[] stringArray) {
            this.stringArray = stringArray;
        }

        public boolean equals(Object o) {
            if (!(o instanceof GetSetBean))
                return false;
            GetSetBean b = (GetSetBean) o;
            return (b.Int == Int &&
                    b.string.equals(string) &&
                    Arrays.equals(b.stringArray, stringArray));
        }

        String string;
        String[] stringArray;
        int Int;
    }

    public static interface GetterInterface {
        public String[] getStrings();
        public int[] getInts();
        public boolean isWhatsit();
        public GetSetBean getGetSet();

        // We uselessly mention the public methods inherited from Object because
        // they should not prevent the interface from being translatable.
        // We could consider encoding the result of hashCode() and toString()
        // on the original object that implements this interface into the
        // generated CompositeData and referencing that in the proxy, but
        // that seems ambitious for now.  Doing it only if hashCode() and/or
        // toString() are mentioned in the interface is a possibility but
        // a rather abstruse one.
        public boolean equals(Object o);
        public int hashCode();
        public String toString();
    }

    public static class ArrayTypeMaker {
        static ArrayType make(int dims, OpenType baseType) {
            try {
                return new ArrayType(dims, baseType);
            } catch (OpenDataException e) {
                throw new Error(e);
            }
        }

        static ArrayType make(SimpleType baseType, boolean primitiveArray) {
            try {
                return new ArrayType(baseType, primitiveArray);
            } catch (OpenDataException e) {
                throw new Error(e);
            }
        }
    }

    public static class CompositeTypeMaker {
        static CompositeType make(String className,
                                  String description,
                                  String[] itemNames,
                                  String[] itemDescriptions,
                                  OpenType[] itemTypes) {
            try {
                return new CompositeType(className,
                                         description,
                                         itemNames,
                                         itemDescriptions,
                                         itemTypes);
            } catch (OpenDataException e) {
                throw new Error(e);
            }
        }
    }

    public static interface GraphMXBean {
        public NodeMXBean[] getNodes();
    }

    public static class Graph implements GraphMXBean {
        public Graph(Node... nodes) {
            for (Node node : nodes)
                node.setGraph(this);
            this.nodes = nodes;
        }

        public NodeMXBean[] getNodes() {
            return nodes;
        }

        private final Node[] nodes;
    }

    public static interface NodeMXBean {
        public String getName();
        public GraphMXBean getGraph();
    }

    public static class Node implements NodeMXBean {
        public Node(String name) {
            this.name = name;
        }

        public String getName() {
            return name;
        }

        public GraphMXBean getGraph() {
            return graph;
        }

        public void setGraph(Graph graph) {
            this.graph = graph;
        }

        private final String name;
        private Graph graph;
    }

    SimpleType GraphType = SimpleType.OBJECTNAME;
    GraphMXBean getGraph();
    void setGraph(GraphMXBean g);
    GraphMXBean opGraph(GraphMXBean x, GraphMXBean y);
    String GraphObjectName = "test:type=GraphMXBean";
    String NodeAObjectName = "test:type=NodeMXBean,name=a";
    String NodeBObjectName = "test:type=NodeMXBean,name=b";
    Node NodeA = new Node("a");
    Node NodeB = new Node("b");
    GraphMXBean Graph = new Graph(NodeA, NodeB);

    public static class ExoticCompositeData implements CompositeDataView {
        private ExoticCompositeData(String whatsit) {
            this.whatsit = whatsit;
        }

        public static ExoticCompositeData from(CompositeData cd) {
            String whatsit = (String) cd.get("whatsit");
            if (!whatsit.startsWith("!"))
                throw new IllegalArgumentException(whatsit);
            return new ExoticCompositeData(whatsit.substring(1));
        }

        public CompositeData toCompositeData(CompositeType ct) {
            try {
                return new CompositeDataSupport(ct, new String[] {"whatsit"},
                                                new String[] {"!" + whatsit});
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }

        public String getWhatsit() {
            return whatsit;
        }

        public boolean equals(Object o) {
            return ((o instanceof ExoticCompositeData) &&
                    ((ExoticCompositeData) o).whatsit.equals(whatsit));
        }

        private final String whatsit;

        public static final CompositeType type;
        static {
            try {
                type =
                    new CompositeType(ExoticCompositeData.class.getName(),
                                      ExoticCompositeData.class.getName(),
                                      new String[] {"whatsit"},
                                      new String[] {"whatsit"},
                                      new OpenType[] {SimpleType.STRING});
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    }
    CompositeType ExoticType = ExoticCompositeData.type;
    ExoticCompositeData getExotic();
    void setExotic(ExoticCompositeData ecd);
    ExoticCompositeData opExotic(ExoticCompositeData ecd1,
                                 ExoticCompositeData ecd2);
    ExoticCompositeData Exotic = new ExoticCompositeData("foo");
}