Java tutorial
/** * Copyright (C) 2009-2015 Dell, Inc. * See annotations for authorship information * * ==================================================================== * 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.dasein.cloud.util.requester.streamprocessors; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; import org.dasein.cloud.util.requester.streamprocessors.StreamProcessor; import javax.annotation.Nullable; import java.io.IOException; import java.io.InputStream; /** * @author Vlad Munthiu */ public class JsonStreamToObjectProcessor<T> implements StreamProcessor<T> { public @Nullable T read(InputStream inputStream, Class<T> classType) { try { ObjectMapper objectMapper = new ObjectMapper(); return objectMapper.readValue(inputStream, classType); } catch (Exception ex) { throw new RuntimeException("Error deserializing response input stream into dasein object", ex); } } public @Nullable String write(T object) { try { ObjectMapper objectMapper = new ObjectMapper(); return objectMapper.writeValueAsString(object); } catch (Exception ex) { throw new RuntimeException("Error serializing dasein object into string", ex); } } }