1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/rt/javap/src/main/java/org/apidesign/javap/FieldData.java Tue Feb 26 16:54:16 2013 +0100
1.3 @@ -0,0 +1,168 @@
1.4 +/*
1.5 + * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +
1.30 +package org.apidesign.javap;
1.31 +
1.32 +import java.io.*;
1.33 +
1.34 +/**
1.35 + * Strores field data informastion.
1.36 + *
1.37 + * @author Sucheta Dambalkar (Adopted code from jdis)
1.38 + */
1.39 +
1.40 +public class FieldData implements RuntimeConstants {
1.41 +
1.42 + ClassData cls;
1.43 + int access;
1.44 + int name_index;
1.45 + int descriptor_index;
1.46 + int attributes_count;
1.47 + int value_cpx=0;
1.48 + boolean isSynthetic=false;
1.49 + boolean isDeprecated=false;
1.50 + Vector attrs;
1.51 +
1.52 + public FieldData(ClassData cls){
1.53 + this.cls=cls;
1.54 + }
1.55 +
1.56 + /**
1.57 + * Read and store field info.
1.58 + */
1.59 + public void read(DataInputStream in) throws IOException {
1.60 + access = in.readUnsignedShort();
1.61 + name_index = in.readUnsignedShort();
1.62 + descriptor_index = in.readUnsignedShort();
1.63 + // Read the attributes
1.64 + int attributes_count = in.readUnsignedShort();
1.65 + attrs=new Vector(attributes_count);
1.66 + for (int i = 0; i < attributes_count; i++) {
1.67 + int attr_name_index=in.readUnsignedShort();
1.68 + if (cls.getTag(attr_name_index)!=CONSTANT_UTF8) continue;
1.69 + String attr_name=cls.getString(attr_name_index);
1.70 + if (attr_name.equals("ConstantValue")){
1.71 + if (in.readInt()!=2)
1.72 + throw new ClassFormatError("invalid ConstantValue attr length");
1.73 + value_cpx=in.readUnsignedShort();
1.74 + AttrData attr=new AttrData(cls);
1.75 + attr.read(attr_name_index);
1.76 + attrs.addElement(attr);
1.77 + } else if (attr_name.equals("Synthetic")){
1.78 + if (in.readInt()!=0)
1.79 + throw new ClassFormatError("invalid Synthetic attr length");
1.80 + isSynthetic=true;
1.81 + AttrData attr=new AttrData(cls);
1.82 + attr.read(attr_name_index);
1.83 + attrs.addElement(attr);
1.84 + } else if (attr_name.equals("Deprecated")){
1.85 + if (in.readInt()!=0)
1.86 + throw new ClassFormatError("invalid Synthetic attr length");
1.87 + isDeprecated = true;
1.88 + AttrData attr=new AttrData(cls);
1.89 + attr.read(attr_name_index);
1.90 + attrs.addElement(attr);
1.91 + } else {
1.92 + AttrData attr=new AttrData(cls);
1.93 + attr.read(attr_name_index, in);
1.94 + attrs.addElement(attr);
1.95 + }
1.96 + }
1.97 +
1.98 + } // end read
1.99 +
1.100 + public boolean isStatic() {
1.101 + return (access & ACC_STATIC) != 0;
1.102 + }
1.103 +
1.104 + /**
1.105 + * Returns access of a field.
1.106 + */
1.107 + public String[] getAccess(){
1.108 + Vector v = new Vector();
1.109 + if ((access & ACC_PUBLIC) !=0) v.addElement("public");
1.110 + if ((access & ACC_PRIVATE) !=0) v.addElement("private");
1.111 + if ((access & ACC_PROTECTED) !=0) v.addElement("protected");
1.112 + if ((access & ACC_STATIC) !=0) v.addElement("static");
1.113 + if ((access & ACC_FINAL) !=0) v.addElement("final");
1.114 + if ((access & ACC_VOLATILE) !=0) v.addElement("volatile");
1.115 + if ((access & ACC_TRANSIENT) !=0) v.addElement("transient");
1.116 + String[] accflags = new String[v.size()];
1.117 + v.copyInto(accflags);
1.118 + return accflags;
1.119 + }
1.120 +
1.121 + /**
1.122 + * Returns name of a field.
1.123 + */
1.124 + public String getName(){
1.125 + return cls.getStringValue(name_index);
1.126 + }
1.127 +
1.128 + /**
1.129 + * Returns internal signature of a field
1.130 + */
1.131 + public String getInternalSig(){
1.132 + return cls.getStringValue(descriptor_index);
1.133 + }
1.134 +
1.135 + /**
1.136 + * Returns true if field is synthetic.
1.137 + */
1.138 + public boolean isSynthetic(){
1.139 + return isSynthetic;
1.140 + }
1.141 +
1.142 + /**
1.143 + * Returns true if field is deprecated.
1.144 + */
1.145 + public boolean isDeprecated(){
1.146 + return isDeprecated;
1.147 + }
1.148 +
1.149 + /**
1.150 + * Returns index of constant value in cpool.
1.151 + */
1.152 + public int getConstantValueIndex(){
1.153 + return (value_cpx);
1.154 + }
1.155 +
1.156 + /**
1.157 + * Returns list of attributes of field.
1.158 + */
1.159 + public Vector getAttributes(){
1.160 + return attrs;
1.161 + }
1.162 +
1.163 + public byte[] findAnnotationData(boolean classRetention) {
1.164 + String n = classRetention ?
1.165 + "RuntimeInvisibleAnnotations" : // NOI18N
1.166 + "RuntimeVisibleAnnotations"; // NOI18N
1.167 + AttrData[] arr = new AttrData[attrs.size()];
1.168 + attrs.copyInto(arr);
1.169 + return ClassData.findAttr(n, arr);
1.170 + }
1.171 +}