Java tutorial
/** * The MIT License * Copyright 2010 JmxTrans team * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.googlecode.jmxtrans.model; import com.fasterxml.jackson.annotation.JsonTypeInfo; import com.fasterxml.jackson.databind.annotation.JsonSerialize; import com.googlecode.jmxtrans.exceptions.LifecycleException; import java.util.Map; import static com.fasterxml.jackson.databind.annotation.JsonSerialize.Inclusion.NON_NULL; /** * Interface which defines a writer for taking jmx data and writing it out in * whatever format you want. * * Note that this class uses a feature of Jackson to serialize anything that * implements this as a "@class". That way, when Jackson deserializes * implementations of this interface, it is done with new objects that implement * this interface. * * @author jon */ @JsonSerialize(include = NON_NULL) @JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, include = JsonTypeInfo.As.PROPERTY, property = "@class") public interface OutputWriter extends AutoCloseable { void start() throws LifecycleException; @Override void close() throws LifecycleException; void doWrite(Server server, Query query, Iterable<Result> results) throws Exception; /** * Settings allow you to configure your Writers with whatever they might * need. * @deprecated Don't use the settings Map, please extract necessary bits at construction time. */ @Deprecated Map<String, Object> getSettings(); /** * This is run when the object is instantiated. You want to get the settings * and validate them. */ void validateSetup(Server server, Query query) throws ValidationException; }