//
// MessagePack for Java
//
// Copyright (C) 2009-2011 FURUHASHI Sadayuki
//
// Licensed 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.msgpack.unpacker;
import java.io.IOException;
import java.io.EOFException;
import java.util.Iterator;
import java.util.NoSuchElementException;
import org.msgpack.type.Value;
import org.msgpack.packer.Unconverter;
public class UnpackerIterator implements Iterator<Value> {
private final AbstractUnpacker u; // FIXME -> Unpacker
private final Unconverter uc;
private IOException exception;
public UnpackerIterator(AbstractUnpacker u) {
this.u = u;
this.uc = new Unconverter(u.msgpack);
}
public boolean hasNext() {
if(uc.getResult() != null) {
return true;
}
try {
u.readValue(uc);
} catch (EOFException ex) {
return false;
} catch (IOException ex) {
// TODO error
exception = ex;
return false;
}
return uc.getResult() != null;
}
public Value next() {
if(!hasNext()) {
throw new NoSuchElementException();
}
Value v = uc.getResult();
uc.resetResult();
return v;
}
public void remove() {
throw new UnsupportedOperationException();
}
public IOException getException() {
return exception;
}
}