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ArrayLazyAny.java
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132 lines (112 loc) · 2.91 KB
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package com.jsoniter.any;
import com.jsoniter.*;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
class ArrayLazyAny extends LazyAny {
private List<Any> cache;
public ArrayLazyAny(byte[] data, int head, int tail) {
super(data, head, tail);
}
@Override
public ValueType valueType() {
return ValueType.ARRAY;
}
@Override
public Object object() {
fillCache();
return cache;
}
@Override
public boolean toBoolean() {
try {
return CodegenAccess.readArrayStart(parse());
} catch (IOException e) {
throw new JsonException(e);
}
}
@Override
public int size() {
fillCache();
return cache.size();
}
@Override
public Iterator<Any> iterator() {
fillCache();
return new ArrayIterator(cache);
}
@Override
public Any get(int index) {
try {
fillCache();
return cache.get(index);
} catch (IndexOutOfBoundsException e) {
return null;
} catch (ClassCastException e) {
return null;
}
}
@Override
public Any get(Object[] keys, int idx) {
if (idx == keys.length) {
return this;
}
fillCache();
return cache.get((Integer) keys[idx]).get(keys, idx+1);
}
@Override
public Any require(Object[] keys, int idx) {
if (idx == keys.length) {
return this;
}
Any result = null;
try {
fillCache();
result = cache.get((Integer) keys[idx]);
} catch (IndexOutOfBoundsException e) {
reportPathNotFound(keys, idx);
}
return result.require(keys, idx + 1);
}
private void fillCache() {
if (cache != null) {
return;
}
try {
JsonIterator iter = parse();
cache = new ArrayList<Any>(4);
if (!CodegenAccess.readArrayStart(iter)) {
return;
}
cache.add(iter.readAny());
while (CodegenAccess.nextToken(iter) == ',') {
cache.add(iter.readAny());
}
} catch (IOException e) {
throw new JsonException(e);
}
}
private static class ArrayIterator implements Iterator<Any> {
private final int size;
private final List<Any> array;
private int idx;
public ArrayIterator(List<Any> array) {
size = array.size();
this.array = array;
idx = 0;
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
@Override
public boolean hasNext() {
return idx < size;
}
@Override
public Any next() {
return array.get(idx++);
}
}
}