/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
package com.facebook.react.bridge;
import com.facebook.jni.HybridData;
import com.facebook.proguard.annotations.DoNotStrip;
import com.facebook.soloader.SoLoader;
import java.util.HashMap;
/**
* Implementation of a read-only map in native memory. This will generally be constructed and filled
* in native code so you shouldn't construct one yourself.
*/
@DoNotStrip
public class ReadableNativeMap extends NativeMap implements ReadableMap {
static {
ReactBridge.staticInit();
}
protected ReadableNativeMap(HybridData hybridData) {
super(hybridData);
}
@Override
public native boolean hasKey(String name);
@Override
public native boolean isNull(String name);
@Override
public native boolean getBoolean(String name);
@Override
public native double getDouble(String name);
@Override
public native int getInt(String name);
@Override
public native String getString(String name);
@Override
public native ReadableNativeArray getArray(String name);
@Override
public native ReadableNativeMap getMap(String name);
@Override
public native ReadableType getType(String name);
@Override
public ReadableMapKeySetIterator keySetIterator() {
return new ReadableNativeMapKeySetIterator(this);
}
public HashMap<String, Object> toHashMap() {
ReadableMapKeySetIterator iterator = keySetIterator();
HashMap<String, Object> hashMap = new HashMap<>();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
switch (getType(key)) {
case Null:
hashMap.put(key, null);
break;
case Boolean:
hashMap.put(key, getBoolean(key));
break;
case Number:
hashMap.put(key, getDouble(key));
break;
case String:
hashMap.put(key, getString(key));
break;
case Map:
hashMap.put(key, getMap(key).toHashMap());
break;
case Array:
hashMap.put(key, getArray(key).toArrayList());
break;
default:
throw new IllegalArgumentException("Could not convert object with key: " + key + ".");
}
}
return hashMap;
}
/**
* Implementation of a {@link ReadableNativeMap} iterator in native memory.
*/
@DoNotStrip
private static class ReadableNativeMapKeySetIterator implements ReadableMapKeySetIterator {
@DoNotStrip
private final HybridData mHybridData;
// Need to hold a strong ref to the map so that our native references remain valid.
@DoNotStrip
private final ReadableNativeMap mMap;
public ReadableNativeMapKeySetIterator(ReadableNativeMap readableNativeMap) {
mMap = readableNativeMap;
mHybridData = initHybrid(readableNativeMap);
}
@Override
public native boolean hasNextKey();
@Override
public native String nextKey();
private static native HybridData initHybrid(ReadableNativeMap readableNativeMap);
}
}