diff options
Diffstat (limited to 'src/main/java/org/onap/integration/simulators/nfsimulator/vesclient/simulator/KeywordsHandler.java')
-rw-r--r-- | src/main/java/org/onap/integration/simulators/nfsimulator/vesclient/simulator/KeywordsHandler.java | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/main/java/org/onap/integration/simulators/nfsimulator/vesclient/simulator/KeywordsHandler.java b/src/main/java/org/onap/integration/simulators/nfsimulator/vesclient/simulator/KeywordsHandler.java new file mode 100644 index 0000000..b37e21a --- /dev/null +++ b/src/main/java/org/onap/integration/simulators/nfsimulator/vesclient/simulator/KeywordsHandler.java @@ -0,0 +1,74 @@ +/* + * ============LICENSE_START======================================================= + * PNF-REGISTRATION-HANDLER + * ================================================================================ + * Copyright (C) 2018 Nokia. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ +package org.onap.integration.simulators.nfsimulator.vesclient.simulator; + +import com.google.gson.Gson; +import com.google.gson.JsonElement; +import com.google.gson.stream.JsonReader; +import com.google.gson.stream.JsonToken; +import com.google.gson.stream.JsonWriter; + +import java.io.IOException; +import java.io.StringReader; +import java.io.StringWriter; + +import org.springframework.stereotype.Component; + +@Component +public class KeywordsHandler { + + private KeywordsExtractor keywordsExtractor; + private IncrementProvider incrementProvider; + + public KeywordsHandler(KeywordsExtractor keywordsExtractor, IncrementProvider incrementProvider) { + this.keywordsExtractor = keywordsExtractor; + this.incrementProvider = incrementProvider; + } + + public JsonElement substituteKeywords(JsonElement jsonBody, String jobId) { + int counter = incrementProvider.getAndIncrement(jobId); + try ( + JsonReader reader = new JsonReader(new StringReader(jsonBody.toString())); + StringWriter stringWriter = new StringWriter(); + JsonWriter jsonWriter = new JsonWriter(stringWriter); + ) { + modify(reader, jsonWriter, counter); + return new Gson().fromJson(stringWriter.getBuffer().toString(), JsonElement.class); + } catch (IOException e) { + throw new KeywordsHandlerException(e); + } + } + + private void modify(JsonReader reader, JsonWriter writer, int incrementValue) throws IOException { + JsonTokenProcessor jsonTokenProcessor; + do { + JsonToken token = reader.peek(); + jsonTokenProcessor = JsonTokenProcessor.getProcessorFor(token); + jsonTokenProcessor.process(reader, writer, incrementValue, keywordsExtractor); + } while (isJsonProcessingFinished(jsonTokenProcessor)); + } + + private boolean isJsonProcessingFinished(JsonTokenProcessor jsonTokenProcessor) { + return !jsonTokenProcessor.isProcessorFor(JsonToken.END_DOCUMENT); + } + +} + + |