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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.tools.ant.taskdefs.optional.depend.constantpool;
import java.io.DataInputStream;
import java.io.IOException;
/**
* A MethodRef CP Info
*
*/
public class MethodRefCPInfo extends ConstantPoolEntry {
/** the name of the class defining this method */
private String methodClassName;
/** the name of the method */
private String methodName;
/** the method's type descriptor */
private String methodType;
/** The index into the constant pool which defines the class of this method. */
private int classIndex;
/**
* the index into the constant pool which defined the name and type
* signature of the method
*/
private int nameAndTypeIndex;
/** Constructor. */
public MethodRefCPInfo() {
super(CONSTANT_METHODREF, 1);
}
/**
* read a constant pool entry from a class stream.
*
* @param cpStream the DataInputStream which contains the constant pool
* entry to be read.
* @exception IOException if there is a problem reading the entry from
* the stream.
*/
public void read(DataInputStream cpStream) throws IOException {
classIndex = cpStream.readUnsignedShort();
nameAndTypeIndex = cpStream.readUnsignedShort();
}
/**
* Print a readable version of the constant pool entry.
*
* @return the string representation of this constant pool entry.
*/
public String toString() {
String value;
if (isResolved()) {
value = "Method : Class = " + methodClassName + ", name = "
+ methodName + ", type = " + methodType;
} else {
value = "Method : Class index = " + classIndex
+ ", name and type index = " + nameAndTypeIndex;
}
return value;
}
/**
* Resolve this constant pool entry with respect to its dependents in
* the constant pool.
*
* @param constantPool the constant pool of which this entry is a member
* and against which this entry is to be resolved.
*/
public void resolve(ConstantPool constantPool) {
ClassCPInfo methodClass
= (ClassCPInfo) constantPool.getEntry(classIndex);
methodClass.resolve(constantPool);
methodClassName = methodClass.getClassName();
NameAndTypeCPInfo nt
= (NameAndTypeCPInfo) constantPool.getEntry(nameAndTypeIndex);
nt.resolve(constantPool);
methodName = nt.getName();
methodType = nt.getType();
super.resolve(constantPool);
}
/**
* Get the name of the class defining the method
*
* @return the name of the class defining this method
*/
public String getMethodClassName() {
return methodClassName;
}
/**
* Get the name of the method.
*
* @return the name of the method.
*/
public String getMethodName() {
return methodName;
}
/**
* Get the type signature of the method.
*
* @return the type signature of the method.
*/
public String getMethodType() {
return methodType;
}
}
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