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/*
* 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 org.apache.tomcat.util.bcel.Constants;
public class SimpleElementValue extends ElementValue
{
private final int index;
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;
}
// 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);
}
}
}
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