How to use

JsonELResolver

in

org.apache.shindig.expressions

@Override
public Class<?> getType(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
  Object value = getValue(context, base, property);
  return value == null ? null : value.getClass();
 }
 return null;
}

@Override
public Object getValue(ELContext context, Object base, Object property) {
 if (base instanceof JSONObject) {
  context.setPropertyResolved(true);
  return ((JSONObject) base).opt(String.valueOf(property));
 }
 if (base instanceof JSONArray) {
  context.setPropertyResolved(true);
  int index = toInt(property);
  return ((JSONArray) base).opt(index);
 }
 
 return null;
}

@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
 }
 return false;
}

/**
 * @return a default ELResolver with functionality needed by all
 * expression evaluation.
 */
private ELResolver createDefaultELResolver() {
 CompositeELResolver resolver = new CompositeELResolver();
 // Resolvers, in the order they will be most commonly accessed.
 // Moving JsonELResolver to the end makes JSON property resolution twice
 // as slow, so this is quite important.
 resolver.add(new JsonELResolver());
 resolver.add(new MapELResolver());
 resolver.add(new ListELResolver());
 resolver.add(new ArrayELResolver());
 // TODO: bean el resolver?
 return resolver;
}

@Override
public Object getValue(ELContext context, Object base, Object property) {
 if (base instanceof JSONObject) {
  context.setPropertyResolved(true);
  return ((JSONObject) base).opt(String.valueOf(property));
 }
 if (base instanceof JSONArray) {
  context.setPropertyResolved(true);
  int index = toInt(property);
  return ((JSONArray) base).opt(index);
 }
 return null;
}

@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
 }
 
 return false;
}

/**
 * @return a default ELResolver with functionality needed by all
 * expression evaluation.
 */
private ELResolver createDefaultELResolver() {
 CompositeELResolver resolver = new CompositeELResolver();
 // Resolvers, in the order they will be most commonly accessed.
 // Moving JsonELResolver to the end makes JSON property resolution twice
 // as slow, so this is quite important.
 resolver.add(new JsonELResolver());
 resolver.add(new MapELResolver());
 resolver.add(new ListELResolver());
 resolver.add(new ArrayELResolver());
 // TODO: bean el resolver?
 
 return resolver;
}

@Override
public Class<?> getType(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
  Object value = getValue(context, base, property);
  return value == null ? null : value.getClass();
 }
 return null;
}

@Override
public Object getValue(ELContext context, Object base, Object property) {
 if (base instanceof JSONObject) {
  context.setPropertyResolved(true);
  return ((JSONObject) base).opt(String.valueOf(property));
 }
 if (base instanceof JSONArray) {
  context.setPropertyResolved(true);
  int index = toInt(property);
  return ((JSONArray) base).opt(index);
 }
 
 return null;
}

@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
 }
 
 return false;
}

/**
 * @return a default ELResolver with functionality needed by all
 * expression evaluation.
 */
private ELResolver createDefaultELResolver() {
 CompositeELResolver resolver = new CompositeELResolver();
 // Resolvers, in the order they will be most commonly accessed.
 // Moving JsonELResolver to the end makes JSON property resolution twice
 // as slow, so this is quite important.
 resolver.add(new JsonELResolver());
 resolver.add(new MapELResolver());
 resolver.add(new ListELResolver());
 resolver.add(new ArrayELResolver());
 // TODO: bean el resolver?
 return resolver;
}

@Override
public Class<?> getType(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
  Object value = getValue(context, base, property);
  return value == null ? null : value.getClass();
 }
 return null;
}

@Override
public Object getValue(ELContext context, Object base, Object property) {
 if (base instanceof JSONObject) {
  context.setPropertyResolved(true);
  return ((JSONObject) base).opt(String.valueOf(property));
 }
 if (base instanceof JSONArray) {
  context.setPropertyResolved(true);
  int index = toInt(property);
  return ((JSONArray) base).opt(index);
 }
 return null;
}

@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
 }
 return false;
}

/**
 * @return a default ELResolver with functionality needed by all
 * expression evaluation.
 */
private ELResolver createDefaultELResolver() {
 CompositeELResolver resolver = new CompositeELResolver();
 // Resolvers, in the order they will be most commonly accessed.
 // Moving JsonELResolver to the end makes JSON property resolution twice
 // as slow, so this is quite important.
 resolver.add(new JsonELResolver());
 resolver.add(new MapELResolver());
 resolver.add(new ListELResolver());
 resolver.add(new ArrayELResolver());
 // TODO: bean el resolver?
 
 return resolver;
}

@Override
public Class<?> getType(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
  Object value = getValue(context, base, property);
  return value == null ? null : value.getClass();
 }
 
 return null;
}

@Override
public Object getValue(ELContext context, Object base, Object property) {
 if (base instanceof JSONObject) {
  context.setPropertyResolved(true);
  return ((JSONObject) base).opt(String.valueOf(property));
 }
 if (base instanceof JSONArray) {
  context.setPropertyResolved(true);
  int index = toInt(property);
  return ((JSONArray) base).opt(index);
 }
 return null;
}

@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
 }
 return false;
}

/**
 * @return a default ELResolver with functionality needed by all
 * expression evaluation.
 */
private ELResolver createDefaultELResolver() {
 CompositeELResolver resolver = new CompositeELResolver();
 // Resolvers, in the order they will be most commonly accessed.
 // Moving JsonELResolver to the end makes JSON property resolution twice
 // as slow, so this is quite important.
 resolver.add(new JsonELResolver());
 resolver.add(new MapELResolver());
 resolver.add(new ListELResolver());
 resolver.add(new ArrayELResolver());
 // TODO: bean el resolver?
 return resolver;
}

@Override
public Class<?> getType(ELContext context, Object base, Object property) {
 if (isJson(base)) {
  context.setPropertyResolved(true);
  Object value = getValue(context, base, property);
  return value == null ? null : value.getClass();
 }
 
 return null;
}