Tools/Source/GenBuild/org/tianocore/build/global/GlobalShare.java

   1 /*++
   2
   3  Copyright (c) 2006, Intel Corporation
   4  All rights reserved. This program and the accompanying materials
   5  are licensed and made available under the terms and conditions of the BSD License
   6  which accompanies this distribution.  The full text of the license may be found at
   7  http://opensource.org/licenses/bsd-license.php
   8
   9  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12  Module Name:
  13  ShareObject.java
  14
  15  Abstract:
  16
  17  --*/
  18 package org.tianocore.build.global;
  19
  20 import java.util.*;
  21
  22 import org.apache.tools.ant.*;
  23 import org.apache.tools.ant.types.DataType;
  24
  25 public class GlobalShare extends DataType implements DynamicConfigurator {
  26     private static final HashMap<String, Object> objStorage = new HashMap<String, Object>();
  27
  28     private DataObjectOp op;
  29
  30     private String objName;
  31
  32     private Object objInst;
  33
  34     private String objClassPackage = "org.tianocore";
  35
  36     public GlobalShare () {
  37
  38     }
  39
  40     public GlobalShare (String objName) {
  41         this.objName = objName;
  42         this.objInst = objStorage.get(this.objName);
  43     }
  44
  45     public GlobalShare (String objName, Object obj) {
  46         this.objName = objName;
  47         this.objInst = obj;
  48         objStorage.put(this.objName, this.objInst);
  49     }
  50
  51     public Object createDynamicElement(String name) throws BuildException {
  52         String className = objClassPackage + "." + name;
  53         log("GlobalShare.createDynamicElement(" + name + ")",
  54                         Project.MSG_VERBOSE);
  55         try {
  56             objInst = Class.forName(className).newInstance();
  57         } catch (ClassNotFoundException e) {
  58             throw new BuildException("class name is not found");
  59         } catch (InstantiationException e) {
  60             throw new BuildException("the class cannnot be instantiated");
  61         } catch (IllegalAccessException e) {
  62             throw new BuildException("cannot access the class");
  63         }
  64
  65         return objInst;
  66     }
  67
  68     public void setDynamicAttribute(String name, String value)
  69                     throws BuildException {
  70         log("name = " + name + " value = " + value, Project.MSG_VERBOSE);
  71         throw new BuildException();
  72     }
  73
  74     public void setName(String name) {
  75         this.objName = name;
  76         if (this.op != null) {
  77             issueOperation();
  78         }
  79     }
  80
  81     public String getName() {
  82         return this.objName;
  83     }
  84
  85     public void setPackage(String name) {
  86         log("ShareObject.setPackage(" + name + ")", Project.MSG_VERBOSE);
  87         this.objClassPackage = name;
  88     }
  89
  90     public String getPackage() {
  91         return this.objClassPackage;
  92     }
  93
  94     public void setOperation(String opName) {
  95         log("ShareObject.setOperation(" + opName + ")", Project.MSG_VERBOSE);
  96         this.op = DataObjectOp.formString(opName);
  97
  98         if (this.objName != null) {
  99             issueOperation();
 100         }
 101     }
 102
 103     public String getOperation() {
 104         return this.op.toString();
 105     }
 106
 107     public void issueOperation() {
 108         if (this.op == DataObjectOp.ADD) {
 109
 110             log("ShareObject: adding ... " + this.objName, Project.MSG_VERBOSE);
 111             objStorage.put(this.objName, this.objInst);
 112
 113         } else if (this.op == DataObjectOp.GET) {
 114
 115             log("ShareObject: fetching ... " + this.objName,
 116                             Project.MSG_VERBOSE);
 117             objInst = objStorage.get(objName);
 118
 119         } else if (this.op == DataObjectOp.DEL) {
 120
 121             log("ShareObject: removing ... " + this.objName,
 122                             Project.MSG_VERBOSE);
 123             objInst = objStorage.remove(objName);
 124
 125         } else {
 126             throw new BuildException("not supported operation");
 127         }
 128     }
 129
 130     public Object get() {
 131         return this.objInst;
 132     }
 133
 134     public static int getObjectNum() {
 135         return objStorage.size();
 136     }
 137
 138     public static Object add(String objName, Object obj) {
 139         return objStorage.put(objName, obj);
 140     }
 141
 142     public static Object retrieve(String objName) {
 143         return objStorage.get(objName);
 144     }
 145
 146     public static Object remove(String objName) {
 147         return objStorage.remove(objName);
 148     }
 149
 150     public static void empty() {
 151         objStorage.clear();
 152     }
 153 }
 154
 155 class DataObjectOp {
 156     private static final HashMap<String, DataObjectOp> opMap = new HashMap<String, DataObjectOp>();
 157
 158     private final String opName;
 159
 160     private DataObjectOp (String name) {
 161         this.opName = name;
 162         opMap.put(this.opName, this);
 163     }
 164
 165     public String toString() {
 166         return opName;
 167     }
 168
 169     public static DataObjectOp formString(String opName) {
 170         return opMap.get(opName);
 171     }
 172
 173     public static final DataObjectOp ADD = new DataObjectOp("ADD");
 174
 175     public static final DataObjectOp GET = new DataObjectOp("GET");
 176
 177     public static final DataObjectOp DEL = new DataObjectOp("DEL");
 178 }