| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.iapi.services.classfile.AttributeEntry |
| 4 | |
| 5 | Copyright 2000, 2004 The Apache Software Foundation or its licensors, as applicable. |
| 6 | |
| 7 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | you may not use this file except in compliance with the License. |
| 9 | You may obtain a copy of the License at |
| 10 | |
| 11 | http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | |
| 13 | Unless required by applicable law or agreed to in writing, software |
| 14 | distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | See the License for the specific language governing permissions and |
| 17 | limitations under the License. |
| 18 | |
| 19 | */ |
| 20 | |
| 21 | package org.apache.derby.iapi.services.classfile; |
| 22 | |
| 23 | import java.io.IOException; |
| 24 | |
| 25 | class AttributeEntry { |
| 26 | |
| 27 | private int attribute_name_index; |
| 28 | private ClassFormatOutput infoOut; |
| 29 | byte[] infoIn; |
| 30 | |
| 31 | AttributeEntry(int name_index, ClassFormatOutput info) { |
| 32 | super(); |
| 33 | |
| 34 | attribute_name_index = name_index; |
| 35 | this.infoOut = info; |
| 36 | } |
| 37 | |
| 38 | |
| 39 | AttributeEntry(ClassInput in) throws IOException { |
| 40 | attribute_name_index = in.getU2(); |
| 41 | infoIn = in.getU1Array(in.getU4()); |
| 42 | } |
| 43 | |
| 44 | int getNameIndex() { return attribute_name_index; } |
| 45 | |
| 46 | void put(ClassFormatOutput out) throws IOException { |
| 47 | out.putU2(attribute_name_index); |
| 48 | if (infoOut != null) { |
| 49 | out.putU4(infoOut.size()); |
| 50 | infoOut.writeTo(out); |
| 51 | } else { |
| 52 | out.putU4(infoIn.length); |
| 53 | out.write(infoIn); |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | This is exact. |
| 59 | */ |
| 60 | int classFileSize() { |
| 61 | return 2 + 4 + |
| 62 | ((infoOut != null) ? infoOut.size() : infoIn.length); |
| 63 | } |
| 64 | } |