/*
* Copyright 2002-2011 the original author or authors.
*
* 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.springframework.flex.config.json;
import java.io.IOException;
import org.codehaus.jackson.JsonFactory;
import org.codehaus.jackson.JsonParseException;
import org.codehaus.jackson.JsonParser;
import org.codehaus.jackson.JsonToken;
import org.springframework.util.Assert;
import flex.messaging.config.ConfigMap;
class JsonConfigMapParser {
private static final JsonFactory FACTORY = new JsonFactory();
ConfigMap parseJsonConfigMap(String text) throws JsonParseException, IOException {
JsonParser parser = FACTORY.createJsonParser(text);
Assert.isTrue(parser.nextToken() == JsonToken.START_OBJECT, "Text does not appear to be a proper JSON string.");
ConfigMap configMap = parseJsonObject(parser);
parser.close();
return configMap;
}
private ConfigMap parseJsonObject(JsonParser parser) throws JsonParseException, IOException {
ConfigMap map = new ConfigMap();
while (parser.nextToken() != JsonToken.END_OBJECT) {
String propName = parser.getCurrentName();
if (propName != null) {
JsonToken token = parser.nextToken();
if (token.isScalarValue()) {
map.addProperty(propName, parser.getText());
} else if (token == JsonToken.START_OBJECT) {
map.addProperty(propName, parseJsonObject(parser));
} else if (token == JsonToken.START_ARRAY) {
parseJsonArray(parser, map, propName);
}
}
}
return map;
}
private void parseJsonArray(JsonParser parser, ConfigMap map, String propName) throws JsonParseException, IOException {
JsonToken token = parser.nextToken();
while (token != JsonToken.END_ARRAY) {
if (token.isScalarValue()) {
map.addProperty(propName, parser.getText());
} else if (token == JsonToken.START_OBJECT) {
map.addProperty(propName, parseJsonObject(parser));
} else if (token == JsonToken.START_ARRAY) {
parseJsonArray(parser, map, propName);
}
token = parser.nextToken();
}
}
}