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//
// MessagePack for Java
//
// Copyright (C) 2009 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;
import java.io.IOException;
import java.util.Iterator;
import java.util.NoSuchElementException;
public class UnpackIterator implements Iterator<Object> {
private Unpacker pac;
private boolean have;
private Object data;
UnpackIterator(Unpacker pac) {
this.pac = pac;
this.have = false;
}
public boolean hasNext() {
if(have) { return true; }
try {
while(true) {
if(pac.execute()) {
data = pac.getData();
pac.reset();
have = true;
return true;
}
if(!pac.fill()) {
return false;
}
}
} catch (IOException e) {
return false;
}
}
public Object next() {
if(!have && !hasNext()) {
throw new NoSuchElementException();
}
have = false;
return data;
}
public void remove() {
throw new UnsupportedOperationException();
}
}
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