/*
* 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.bcel.generic;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.bcel.classfile.AnnotationEntry;
import org.apache.bcel.classfile.ConstantUtf8;
import org.apache.bcel.classfile.ElementValuePair;
public class AnnotationEntryGen
{
private int typeIndex;
private List<ElementValuePairGen> evs;
private ConstantPoolGen cpool;
private boolean isRuntimeVisible = false;
/**
* Here we are taking a fixed annotation of type Annotation and building a
* modifiable AnnotationGen object. If the pool passed in is for a different
* class file, then copyPoolEntries should have been passed as true as that
* will force us to do a deep copy of the annotation and move the cpool
* entries across. We need to copy the type and the element name value pairs
* and the visibility.
*/
public AnnotationEntryGen(AnnotationEntry a, ConstantPoolGen cpool,
boolean copyPoolEntries)
{
this.cpool = cpool;
if (copyPoolEntries)
{
typeIndex = cpool.addUtf8(a.getAnnotationType());
}
else
{
typeIndex = a.getAnnotationTypeIndex();
}
isRuntimeVisible = a.isRuntimeVisible();
evs = copyValues(a.getElementValuePairs(), cpool, copyPoolEntries);
}
private List<ElementValuePairGen> copyValues(ElementValuePair[] in, ConstantPoolGen cpool,
boolean copyPoolEntries)
{
List<ElementValuePairGen> out = new ArrayList<ElementValuePairGen>();
int l = in.length;
for (int i = 0; i < l; i++)
{
ElementValuePair nvp = in[i];
out.add(new ElementValuePairGen(nvp, cpool, copyPoolEntries));
}
return out;
}
private AnnotationEntryGen(ConstantPoolGen cpool)
{
this.cpool = cpool;
}
/**
* Retrieve an immutable version of this AnnotationGen
*/
public AnnotationEntry getAnnotation()
{
AnnotationEntry a = new AnnotationEntry(typeIndex, cpool.getConstantPool(),
isRuntimeVisible);
for (ElementValuePairGen element : evs) {
a.addElementNameValuePair(element.getElementNameValuePair());
}
return a;
}
public AnnotationEntryGen(ObjectType type,
List<ElementValuePairGen> elements, boolean vis,
ConstantPoolGen cpool)
{
this.cpool = cpool;
this.typeIndex = cpool.addUtf8(type.getSignature());
evs = elements;
isRuntimeVisible = vis;
}
public static AnnotationEntryGen read(DataInputStream dis,
ConstantPoolGen cpool, boolean b) throws IOException
{
AnnotationEntryGen a = new AnnotationEntryGen(cpool);
a.typeIndex = dis.readUnsignedShort();
int elemValuePairCount = dis.readUnsignedShort();
for (int i = 0; i < elemValuePairCount; i++)
{
int nidx = dis.readUnsignedShort();
a.addElementNameValuePair(new ElementValuePairGen(nidx,
ElementValueGen.readElementValue(dis, cpool), cpool));
}
a.isRuntimeVisible(b);
return a;
}
public void dump(DataOutputStream dos) throws IOException
{
dos.writeShort(typeIndex); // u2 index of type name in cpool
dos.writeShort(evs.size()); // u2 element_value pair count
for (int i = 0; i < evs.size(); i++)
{
ElementValuePairGen envp = evs.get(i);
envp.dump(dos);
}
}
public void addElementNameValuePair(ElementValuePairGen evp)
{
if (evs == null)
evs = new ArrayList<ElementValuePairGen>();
evs.add(evp);
}
public int getTypeIndex()
{
return typeIndex;
}
public final String getTypeSignature()
{
// ConstantClass c = (ConstantClass)cpool.getConstant(typeIndex);
ConstantUtf8 utf8 = (ConstantUtf8) cpool
.getConstant(typeIndex/* c.getNameIndex() */);
return utf8.getBytes();
}
public final String getTypeName()
{
return getTypeSignature();// BCELBUG: Should I use this instead?
// Utility.signatureToString(getTypeSignature());
}
/**
* Returns list of ElementNameValuePair objects
*/
public List<ElementValuePairGen> getValues()
{
return evs;
}
@Override
public String toString()
{
StringBuilder s = new StringBuilder(32);
s.append("AnnotationGen:[" + getTypeName() + " #" + evs.size() + " {");
for (int i = 0; i < evs.size(); i++)
{
s.append(evs.get(i));
if (i + 1 < evs.size())
s.append(",");
}
s.append("}]");
return s.toString();
}
public String toShortString()
{
StringBuilder s = new StringBuilder();
s.append("@" + getTypeName() + "(");
for (int i = 0; i < evs.size(); i++)
{
s.append(evs.get(i));
if (i + 1 < evs.size())
s.append(",");
}
s.append(")");
return s.toString();
}
private void isRuntimeVisible(boolean b)
{
isRuntimeVisible = b;
}
public boolean isRuntimeVisible()
{
return isRuntimeVisible;
}
}