mspsim/se/sics/json/JSONArray.java

285 lines
8.5 KiB
Java
Executable File

/*
* Copyright (c) 2011, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: JSONArray.java 95 2011-04-19 13:29:41Z nfi $
*
* -----------------------------------------------------------------
*
* JSONArray
*
* Authors : Joakim Eriksson, Niclas Finne
* Created : 18 apr 2011
* Updated : $Date: 2011-04-19 15:29:41 +0200 (Tue, 19 Apr 2011) $
* $Revision: 95 $
*/
package se.sics.json;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collection;
/**
*
*/
public class JSONArray extends ArrayList<Object> implements JSONAware, JSONStreamAware {
private static final long serialVersionUID = 396701954050866614L;
private void checkForCycles(Object value) {
if (this == value) {
throw new IllegalArgumentException("cycle detected");
}
if (value instanceof JSONObject) {
JSONObject object = (JSONObject) value;
for (Object v : object.values()) {
checkForCycles(v);
}
} else if (value instanceof JSONArray) {
JSONArray list = (JSONArray) value;
for (Object v : list) {
checkForCycles(v);
}
}
}
private void checkAllForCycles(Collection<? extends Object> c) {
for(Object v : c) {
checkForCycles(v);
}
}
@Override
public boolean add(Object e) {
checkForCycles(e);
return super.add(e);
}
@Override
public boolean remove(Object o) {
return super.remove(o);
}
@Override
public boolean addAll(Collection<? extends Object> c) {
checkAllForCycles(c);
return super.addAll(c);
}
@Override
public boolean addAll(int index, Collection<? extends Object> c) {
checkAllForCycles(c);
return super.addAll(index, c);
}
@Override
public boolean removeAll(Collection<?> c) {
return super.removeAll(c);
}
@Override
public boolean retainAll(Collection<?> c) {
return super.retainAll(c);
}
@Override
public void clear() {
super.clear();
}
@Override
public Object set(int index, Object element) {
checkForCycles(element);
return super.set(index, element);
}
@Override
public void add(int index, Object element) {
checkForCycles(element);
super.add(index, element);
}
@Override
public Object remove(int index) {
return super.remove(index);
}
public String getAsString(int index) {
Object v = get(index);
return v != null ? v.toString() : null;
}
public int getAsInt(int index, int defaultValue) {
Object v = get(index);
if (v instanceof Number) {
return ((Number)v).intValue();
}
return defaultValue;
}
public long getAsLong(int index, long defaultValue) {
Object v = get(index);
if (v instanceof Number) {
return ((Number)v).longValue();
}
return defaultValue;
}
public float getAsFloat(int index, float defaultValue) {
Object v = get(index);
if (v instanceof Number) {
return ((Number)v).floatValue();
}
return defaultValue;
}
public double getAsDouble(int index, double defaultValue) {
Object v = get(index);
if (v instanceof Number) {
return ((Number)v).doubleValue();
}
return defaultValue;
}
public boolean getAsBoolean(int index, boolean defaultValue) {
Object v = get(index);
if (v instanceof Boolean) {
return ((Boolean)v).booleanValue();
}
return defaultValue;
}
public JSONObject getJSONObject(int index) {
Object v = get(index);
if (v instanceof JSONObject) {
return (JSONObject)v;
}
return null;
}
public JSONArray getJSONArray(int index) {
Object v = get(index);
if (v instanceof JSONArray) {
return (JSONArray)v;
}
return null;
}
public void update(JSONArray v) {
int count = v.size();
if (size() < count) {
count = size();
}
for(int i = 0; i < count; i++) {
Object target = get(i);
Object source = v.get(i);
if (source instanceof JSONObject) {
if (target instanceof JSONObject) {
((JSONObject) target).update((JSONObject) source);
}
} else if (source instanceof JSONArray) {
if (target instanceof JSONArray) {
((JSONArray) target).update((JSONArray) source);
}
} else if (target instanceof JSONObject || target instanceof JSONArray) {
// Compound values can not be replaced by primitive values
} else {
set(i, source);
}
}
}
public void merge(JSONArray v) {
int count = v.size();
if (size() < count) {
count = size();
}
for(int i = 0; i < count; i++) {
Object target = get(i);
Object source = v.get(i);
if (source instanceof JSONObject) {
if (target instanceof JSONObject) {
((JSONObject) target).merge((JSONObject) source);
}
} else if (source instanceof JSONArray) {
if (target instanceof JSONArray) {
((JSONArray) target).merge((JSONArray) source);
}
} else if (target instanceof JSONObject || target instanceof JSONArray) {
// Compound values can not be replaced by primitive values
} else {
set(i, source);
}
}
if (v.size() > size()) {
for(int i = size(), n = v.size(); i < n; i++) {
Object source = v.get(i);
if (source instanceof JSONObject) {
add(((JSONObject) source).clone());
} else if (source instanceof JSONArray) {
add(((JSONArray) source).clone());
} else {
add(source);
}
}
}
}
@Override
public JSONArray clone() {
JSONArray clone = (JSONArray) super.clone();
// Create deep copy
for(int i = 0, n = clone.size(); i < n; i++) {
Object value = clone.get(i);
if (value instanceof JSONObject) {
clone.set(i, ((JSONObject)value).clone());
} else if (value instanceof JSONArray) {
clone.set(i, ((JSONArray)value).clone());
}
}
return clone;
}
@Override
public String toString() {
return toJSONString();
}
@Override
public String toJSONString() {
return org.json.simple.JSONArray.toJSONString(this);
}
@Override
public void writeJSONString(Writer out) throws IOException {
org.json.simple.JSONArray.writeJSONString(this, out);
}
}