/*
* 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.DataInput;
import java.io.IOException;
import java.util.Objects;
import org.apache.tomcat.util.bcel.Const;
/**
* Extends the abstract {@link Constant} to represent a reference to a UTF-8 encoded string.
*
* @see Constant
*/
public final class ConstantUtf8 extends Constant {
/**
* Gets a new or cached instance of the given value.
* <p>
* See {@link ConstantUtf8} class Javadoc for details.
* </p>
*
* @param dataInput the value.
* @return a new or cached instance of the given value.
* @throws IOException if an I/O error occurs.
*/
static ConstantUtf8 getInstance(final DataInput dataInput) throws IOException {
return new ConstantUtf8(dataInput.readUTF());
}
private final String value;
/**
* @param value Data
*/
private ConstantUtf8(final String value) {
super(Const.CONSTANT_Utf8);
this.value = Objects.requireNonNull(value, "value");
}
/**
* @return Data converted to string.
*/
public String getBytes() {
return value;
}
}