| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| package org.apache.tomcat.util.bcel.classfile; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.tomcat.util.bcel.Constants; |
| |
| public class SimpleElementValue extends ElementValue |
| { |
| private int index; |
| |
| public SimpleElementValue(int type, int index, ConstantPool cpool) |
| { |
| super(type, cpool); |
| this.index = index; |
| } |
| |
| /** |
| * @return Value entry index in the cpool |
| */ |
| public int getIndex() |
| { |
| return index; |
| } |
| |
| |
| @Override |
| public String toString() |
| { |
| return stringifyValue(); |
| } |
| |
| // Whatever kind of value it is, return it as a string |
| @Override |
| public String stringifyValue() |
| { |
| switch (type) |
| { |
| case PRIMITIVE_INT: |
| ConstantInteger c = (ConstantInteger) cpool.getConstant(getIndex(), |
| Constants.CONSTANT_Integer); |
| return Integer.toString(c.getBytes()); |
| case PRIMITIVE_LONG: |
| ConstantLong j = (ConstantLong) cpool.getConstant(getIndex(), |
| Constants.CONSTANT_Long); |
| return Long.toString(j.getBytes()); |
| case PRIMITIVE_DOUBLE: |
| ConstantDouble d = (ConstantDouble) cpool.getConstant(getIndex(), |
| Constants.CONSTANT_Double); |
| return Double.toString(d.getBytes()); |
| case PRIMITIVE_FLOAT: |
| ConstantFloat f = (ConstantFloat) cpool.getConstant(getIndex(), |
| Constants.CONSTANT_Float); |
| return Float.toString(f.getBytes()); |
| case PRIMITIVE_SHORT: |
| ConstantInteger s = (ConstantInteger) cpool.getConstant(getIndex(), |
| Constants.CONSTANT_Integer); |
| return Integer.toString(s.getBytes()); |
| case PRIMITIVE_BYTE: |
| ConstantInteger b = (ConstantInteger) cpool.getConstant(getIndex(), |
| Constants.CONSTANT_Integer); |
| return Integer.toString(b.getBytes()); |
| case PRIMITIVE_CHAR: |
| ConstantInteger ch = (ConstantInteger) cpool.getConstant( |
| getIndex(), Constants.CONSTANT_Integer); |
| return String.valueOf((char)ch.getBytes()); |
| case PRIMITIVE_BOOLEAN: |
| ConstantInteger bo = (ConstantInteger) cpool.getConstant( |
| getIndex(), Constants.CONSTANT_Integer); |
| if (bo.getBytes() == 0) { |
| return "false"; |
| } |
| return "true"; |
| case STRING: |
| ConstantUtf8 cu8 = (ConstantUtf8) cpool.getConstant(getIndex(), |
| Constants.CONSTANT_Utf8); |
| return cu8.getBytes(); |
| default: |
| throw new RuntimeException( |
| "SimpleElementValue class does not know how to stringify type " |
| + type); |
| } |
| } |
| |
| @Override |
| public void dump(DataOutputStream dos) throws IOException |
| { |
| dos.writeByte(type); // u1 kind of value |
| switch (type) |
| { |
| case PRIMITIVE_INT: |
| case PRIMITIVE_BYTE: |
| case PRIMITIVE_CHAR: |
| case PRIMITIVE_FLOAT: |
| case PRIMITIVE_LONG: |
| case PRIMITIVE_BOOLEAN: |
| case PRIMITIVE_SHORT: |
| case PRIMITIVE_DOUBLE: |
| case STRING: |
| dos.writeShort(getIndex()); |
| break; |
| default: |
| throw new RuntimeException( |
| "SimpleElementValue doesnt know how to write out type " |
| + type); |
| } |
| } |
| } |